Special vehicle for storing, transporting and dehydrogenating hydrogen

Abstract

The utility model relates to a special vehicle for hydrogen storage, hydrogen transportation and dehydrogenation. The special vehicle mainly comprises a container and a transportation vehicle, wherein the container is provided with hydrogen storage, hydrogen transportation and dehydrogenation equipment; the equipment for storing, transporting and dehydrogenating the hydrogen is arranged in a container to form the container provided with the equipment for storing, transporting and dehydrogenating the hydrogen; the container is fixed on the chassis of the transport vehicle to form a whole body, so that the special vehicle for storing, transporting and dehydrogenating hydrogen is formed; the special vehicle disclosed by the utility model can be used for implementing a coordinated service of hydrogen storage, hydrogen transportation, dehydrogenation and hydrogen supply, has the advantages that the hydrogen storage capacity of a transportation vehicle is high, hydrogen transportation and dehydrogenation are carried out at normal pressure, hydrogen transportation at normal pressure is safe and reliable, potential safety hazards possibly occurring in transportation of hydrogen stored in a high-pressure bottle are overcome, and the special vehicle has good industrial practicability.

Description

Technical Field

[0001] The utility model relates to the field of hydrogen energy storage equipment, and specifically belongs to a special vehicle for storing, transporting and dehydrogenating hydrogen. Background Art

[0002] Hydrogen energy is an important carrier for energy transformation and upgrading, and an important solution for achieving carbon peak and carbon neutrality. Hydrogen energy is a "green energy" with abundant sources, clean, efficient and wide applications. At present, mature industrial hydrogen production mainly includes fossil fuels such as natural gas hydrogen production, methanol reforming hydrogen production, coke oven gas pressure swing adsorption hydrogen production and water electrolysis hydrogen production. Storing hydrogen as an energy carrier is considered to be the best solution to the energy problem. The hydrogen energy system mainly includes four links: hydrogen production, storage, transportation and dehydrogenation application. The storage of hydrogen energy is the key and the main technical obstacle to the current application of hydrogen energy. Hydrogen is the lightest of all elements. Under standard conditions, its density is 0.0899g / L, which is one ten-thousandth of the density of water. At -252.7℃, it can be a liquid with a density of 70g / L, which is only one-fifteenth of water. So hydrogen can be stored, but it is difficult to store it at a high density. The International Energy Agency stipulates that the mass hydrogen storage density of a practical hydrogen storage system must reach 5wt%, and the volume hydrogen storage density is also required to be greater than 40kg / m 3 The mass and volume hydrogen storage densities of on-board hydrogen sources proposed by the U.S. Department of Energy (DOE) are 6.5wt% and 62kg / m 3 . At present, the most reported hydrogen storage methods mainly include low-temperature liquid hydrogen storage, high-pressure gaseous hydrogen storage, metal alloy hydrogen storage, carbon material adsorption hydrogen storage, chemical hydride hydrogen storage and metal organic framework (MOFs) hydrogen storage. These methods have made certain progress, but further consideration is needed from the aspects of mass hydrogen storage density, volume hydrogen storage density, energy efficiency, safety, cost, etc. Therefore, finding a hydrogen storage method that is efficient, low-cost and can be used on a large scale has become the key. In recent years, liquid organic hydride hydrogen storage technology based on chemical reaction method has attracted the attention of many countries due to its advantages of large hydrogen storage capacity, high energy density, safe and convenient liquid storage and transportation. This technology is considered to be an alternative to liquefaction or high-pressure hydrogen storage, and is expected to play an important role in the future storage and transportation of hydrogen energy.

[0003] Hydrogen storage and transportation is the key bridge connecting the hydrogen production end and the demand end. Low-cost and efficient hydrogen storage and transportation technology is a necessary guarantee for the large-scale application of hydrogen. At present, room temperature and high-pressure gaseous hydrogen storage is the most mature hydrogen storage technology in my country. Gaseous high-pressure storage is a more common and direct storage method. Hydrogen can be released directly by adjusting the high-pressure valve. Ordinary high-pressure gaseous hydrogen storage is a widely used, simple and easy hydrogen storage method, and it is low-cost, fast in filling and discharging, and can be carried out at room temperature. However, its disadvantages are that it requires heavy pressure-resistant containers and consumes a large amount of hydrogen compression work. There are risks of hydrogen leakage and container explosion. Unsafe factors: high-pressure hydrogen storage requires high-pressure resistant storage tanks and high manufacturing costs. High-pressure storage of hydrogen poses a safety risk. Low-temperature liquid hydrogen storage is a physical storage technology. After compression, the hydrogen is deep-cooled to below 21K (about -253°C) to turn it into liquid hydrogen, which is then stored in a dedicated low-temperature insulated liquid hydrogen tank. The density can reach 70.78kg / cm3, which is about 850 times the density of hydrogen under standard conditions. It has a large volume-to-capacity ratio and is suitable for large-scale, long-distance hydrogen storage and transportation. The disadvantage is that it has high insulation requirements for hydrogen storage containers and consumes a lot of energy during liquefaction and transportation. Solid-state hydrogen storage uses metal hydrides, chemical hydrides or nanomaterials as hydrogen storage carriers, and achieves hydrogen storage through chemical adsorption and physical adsorption. It has the advantages of high hydrogen storage density, low hydrogen storage pressure, good safety, and high hydrogen release purity. The disadvantage is that the cost is high and hydrogen release needs to be carried out at a higher temperature. The properties of hydrogen storage agents and hydrogen carriers are similar to gasoline, and storage, transportation, maintenance, and maintenance are safe and convenient. In particular, the simplicity of storage facilities is difficult to match with traditional hydrogen storage technology. It can be recycled many times and has a long life. The hydrogenation reaction releases a large amount of heat, which can be used. Considering the hydrogen storage content, energy consumption of the hydrogen storage process, and the cost of hydrogen storage, monocyclic aromatic hydrocarbons such as benzene and toluene have a large hydrogen storage capacity, a reversible hydrogen storage process, good effect, and a high thermal efficiency of the circulation system. The hydrogenation process is an exothermic reaction, and the dehydrogenation process is an endothermic reaction. The heat released during the hydrogenation reaction can be recovered as the heat required for the dehydrogenation reaction, thereby effectively reducing heat loss and improving the thermal efficiency of the entire circulation system. The organic hydride after hydrogenation has stable performance and high safety. It can be stored at room temperature and pressure. The storage method is similar to that of petroleum. The mass hydrogen storage density is high, which can reach 5.0-7.2% / wt. Due to its unique advantages, the organic liquid reversible hydrogen storage / release technology is technically feasible as a large-scale, seasonal hydrogen energy storage method or on-board dehydrogenation as automobile fuel. It has great development potential and has become a promising hydrogen storage technology.

[0004] Liquid organic hydrogen storage technology began in the 1980s; liquid organic hydrogen storage belongs to chemical storage, which uses organic liquid and hydrogen to undergo reversible hydrogenation and dehydrogenation reactions under the action of a catalyst, and can achieve hydrogen storage and transportation at room temperature and pressure; the advantages of this hydrogen storage method are relatively high hydrogen storage density, high safety, and low cost, and it will become the dominant position of atmospheric pressure, safe, and large-scale hydrogen storage and supply that will be widely promoted and applied in the future; the disadvantage is that it needs to be equipped with corresponding hydrogenation, transportation, and dehydrogenation related equipment, and its process is cumbersome and inefficient, which increases the comprehensive cost of hydrogen storage, transportation, and supply; hydrogen is indispensable in the transformation of the energy structure, and it is far from our actual use. Its pain point lies in cost, mainly in the storage and transportation of hydrogen. At present, the main method is gaseous hydrogen transportation. A 49-ton, 12-meter-long hydrogen tube bundle truck has a hydrogen capacity of about 350kg; the next is liquid hydrogen transportation, which is more difficult and more expensive;

[0005] In the publication number CN114497630A "An organic liquid material for hydrogen storage, catalytic hydrogen storage system and hydrogen storage method", the reaction temperature is as high as 300°C, and the pressure of the reaction system is as high as 10MPa. The high temperature and high pressure conditions required for the hydrogen storage process are harsh, which increases the energy consumption cost of the hydrogenation reaction; the active components of the selected hydrogenation catalyst are expensive metals, such as ruthenium, palladium and platinum, and the total loading of the three metals accounts for 0.3-2.5% of the mass of the entire hydrogen storage reaction catalyst. Example 1 selects a ruthenium-containing Ru-Cu / Al2O3 catalyst, and Example 2 selects a platinum-containing ruthenium Pt-Ru-Cu / Al2O3 catalyst. The precious metals are easily "poisoned" by the sulfides in the raw materials, which increases the cost of catalyst regeneration. In Example 1, a Ru (ruthenium)-Cu / Al2O3 catalyst is used. Agent, wherein the mass content of Ru is 2.0wt%, the mass content of Cu is 10.0wt%, and the catalyst is in a 20-40 mesh size, which is a fine powder catalyst. The fine powder catalyst has a large resistance in the fixed bed and is not suitable for filling in the fixed bed for use. The fine powder catalyst is only suitable for use in a kettle reactor with a stirrer for indirect production. The catalyst in the fixed bed is 2.0g, which belongs to the hydrogenation test in the laboratory. It does not take into account and involve the hydrogenation reaction of hydrogen and liquid organic matter in industrial production, which is an exothermic reaction. The reaction heat must be conducted away from the system in time, otherwise the heat of the catalytic reactor will accumulate in large quantities, forming a vicious cycle, resulting in a sudden rise in the temperature of the hydrogenation reactor or the catalytic bed (flying temperature), which may cause the catalyst to be damaged and the service life to be reduced, or may cause serious equipment or pipeline explosion accidents;

[0006] In order to overcome the defects of the above-mentioned hydrogen storage, transportation and dehydrogenation, such as complicated procedures, multiple links, low efficiency and high hydrogen storage cost, the utility model provides a "special vehicle for hydrogen storage, transportation and dehydrogenation". By using the "special vehicle for hydrogen storage, transportation and dehydrogenation", liquid organic matter is hydrogenated or loaded with hydrogen at the hydrogen production site, and then the "special vehicle" carrying the hydrogenated liquid organic matter is transported to the production site where hydrogen is needed, and the dehydrogenation device configured on the "special vehicle" is used to release the hydrogen, and then the hydrogen compressor is used to supply high-pressure hydrogen to the user; the utility model has the advantages of short operation process, small equipment investment, low operating cost, safe and reliable, and scientific management and management, so as to implement systematic and comprehensive application services for hydrogen storage, transportation and dehydrogenation;

[0007] Through searching and consulting a large number of domestic and foreign literature, magazines, books, CDs, and patent materials, no relevant reports on "a special vehicle for storing, transporting, and dehydrogenating hydrogen" have been found at home or abroad; Summary of the invention

[0008] The utility model discloses a special vehicle for hydrogen storage, transportation and dehydrogenation, which is mainly composed of a cargo box equipped with hydrogen storage, transportation and dehydrogenation equipment and a transport vehicle; the cargo box is a fixed cargo box or a movable cargo box on the vehicle; the equipment for hydrogen storage, transportation and dehydrogenation comprises: valve 1, valve 2, hydrogen compressor 1, pressure gauge 1, gas-liquid separator, sampling valve, organic solvent pump, shell and tube condenser, hydrogen compressor 2, hydrogen buffer tank, heat exchanger 1, valve 3, pressure gauge 2, pressure gauge 3, thermometer 1, tubular fixed bed catalytic reactor 2, thermometer 2, heat exchanger 2, tubular fixed bed catalytic reactor 1, gas-liquid mixer and heating furnace; the equipment for hydrogen storage, transportation and dehydrogenation is arranged in the cargo box to form a cargo box equipped with hydrogen storage, transportation and dehydrogenation equipment; the cargo box equipped with hydrogen storage, transportation and dehydrogenation equipment is fixed on the chassis of the transport vehicle to form a whole to form a special vehicle for hydrogen storage, transportation and dehydrogenation;

[0009] It is characterized in that: the hydrogen outlet 5 on the hydrogen buffer tank is connected to the inlet 3 of the hydrogen compressor 2 through a pipeline, the outlet 4 of the hydrogen compressor 2 is connected to the shell side inlet of the heat exchanger 1 through a pipeline 5, the shell side outlet of the heat exchanger 1 is connected to the shell side inlet of the heat exchanger 2 through a pipeline 7, the shell side outlet of the heat exchanger 2 is connected to the inlet 10 of the gas-liquid mixer through a pipeline 8, the outlet 8 of the gas-liquid mixer is connected to the top inlet 9 of the tubular fixed bed catalytic reactor 1 through a pipeline, the bottom outlet 7 of the tubular fixed bed catalytic reactor 1 is connected to the tube side inlet of the heat exchanger 2 through a pipeline 9, the tube side outlet of the heat exchanger 2 is connected to the top inlet 4 of the tubular fixed bed catalytic reactor 2 through a pipeline 6, the bottom outlet 6 of the tubular fixed bed catalytic reactor 2 is connected to the tube side inlet of the heat exchanger 1, the tube side outlet of the heat exchanger 1 is connected to the tube side inlet of the shell and tube condenser through a pipeline 4, and the shell and tube condenser The pipe outlet of the device is connected to the top inlet 2 of the gas-liquid separator through the pipeline 1, the top outlet 2 of the gas-liquid separator is connected to the inlet 1 of the hydrogen compressor 1 through the pipeline, the outlet 1 of the hydrogen compressor 1 is connected to the inlet of the valve 1 and the inlet of the valve 2 through the pipeline, the outlet of the valve 1 is configured with a hydrogen outlet pipe, the outlet of the valve 2 is connected to the inlet 8 and the inlet 7 of the tubular fixed bed catalytic reactor 1 through the cold hydrogen pipeline, the outlet of the valve 2 is connected to the inlet 5 and the inlet 6 of the tubular fixed bed catalytic reactor 2 through the cold hydrogen pipeline, the outlet of the valve 2 is connected to the inlet 10 of the gas-liquid mixer through the cold hydrogen pipeline, the bottom outlet 3 of the gas-liquid separator is connected to the inlet of the organic solvent pump through the pipeline 11, the outlet of the organic solvent pump is connected to the inlet 11 of the heating furnace through the pipeline 3, and the outlet 9 of the heating pipe in the heating furnace is connected to the inlet 10 of the gas-liquid mixer through the pipeline 10;

[0010] The tubular fixed bed catalytic reactor 1 is a cylindrical metal closed cylinder, the middle section of the cylinder is provided with an upper sieve plate 1 and a lower sieve plate 1, the side wall of the cylinder below the upper sieve plate 1 is provided with an inlet 8, the side wall of the cylinder below the lower sieve plate 1 is provided with an inlet 7, a solid catalyst is placed between the upper sieve plate 1 and the lower sieve plate 1, the temperature sensing head of the thermometer 2 is inserted into the solid catalyst, the top of the tubular fixed bed catalytic reactor 1 is provided with an inlet 9, the bottom of the tubular fixed bed catalytic reactor 1 is provided with an outlet 7, the interior of the tubular fixed bed catalytic reactor 1 is filled with liquid organic matter, and a pressure gauge 3 is inserted into the liquid organic matter; the hydrogenation reactor disclosed in the petrochemical industry can also be used;

[0011] The tubular fixed bed catalytic reactor No. 2 is a cylindrical metal closed cylinder, the middle section of the cylinder is provided with an upper sieve plate No. 2 and a lower sieve plate No. 2, the side wall of the cylinder below the upper sieve plate No. 2 is provided with an inlet No. 5, the side wall of the cylinder below the lower sieve plate No. 2 is provided with an inlet No. 6, a solid catalyst is placed between the upper sieve plate No. 2 and the lower sieve plate No. 2, the temperature sensing head of the thermometer No. 1 is inserted into the solid catalyst, the top of the tubular fixed bed catalytic reactor No. 2 is provided with an inlet No. 4, the bottom of the tubular fixed bed catalytic reactor No. 2 is provided with an outlet No. 6, the interior of the tubular fixed bed catalytic reactor No. 2 is filled with liquid organic matter, and a pressure gauge No. 1 is inserted into the liquid organic matter; the hydrogenation reactor disclosed in the petrochemical industry can also be used;

[0012] The heating furnace is a petrochemical cylindrical tube heating furnace, which is commonly used as a heating furnace equipment for atmospheric and vacuum distillation of crude oil; the heating furnace is composed of a radiation chamber, a convection chamber, a waste heat recovery system, a burner and a ventilation system; a coil is arranged in the heating furnace; the coil is a seamless high-temperature resistant steel pipe, and the seamless high-temperature resistant steel pipe contains flowing liquid organic materials. The outer wall of the coil in the heating chamber is heated by the combustion of electric heat, fuel oil or gas, so as to heat and raise the temperature of the flowing liquid organic materials in the seamless high-temperature resistant steel pipe;

[0013] The hydrogen compressor 1 and hydrogen compressor 2 are common hydrogen compressors, and their models include QB, DSR, and FXY, which have different compression ratios and exhaust volumes. Among them, the QB series is the basic model, the DSR series is the high-pressure model (≥15MPa), and the FXY series is the large-displacement model.

[0014] The gas-liquid separator is a conventional chemical industry gas-liquid separator, which is a closed tank body. The top of the tank body is equipped with an inlet and an outlet for gas and liquid materials. The bottom of the tank body is equipped with a liquid organic matter outlet. The liquid level line in the tank body is located at a position of 2 / 3 to 4 / 5 of the height of the tank body. The outlet pipe on the side at a position of 1 / 2 of the height of the tank body is equipped with a sampling valve, and the outlet pipe is inserted into the liquid organic matter.

[0015] The gas-liquid mixer is a commonly used "gas-liquid" two-phase mixing device in industry. Its basic working mechanism is to use the mixing unit fixed in the tube to change the flow state of the fluid in the tube, so as to achieve the purpose of good dispersion and sufficient mixing between different gas and liquid fluids. The equipment is widely used. It is a high-efficiency mixing equipment without moving parts, relying on the special structure of the mixing unit and the movement of the fluid to disperse and mix immiscible fluids. Compared with traditional mixing equipment such as agitators, colloid mills, homogenizers, and venturi tubes, static mixers have the advantages of compact structure, low energy consumption, low investment, high operational flexibility, no maintenance, and good mixing performance. It can replace traditional related equipment in all processes involving liquid-liquid, liquid-gas, liquid-solid, gas-gas mixing, emulsification, neutralization, absorption, extraction, reaction, and enhanced heat transfer. Therefore, it is widely used in the mixing of substances in petroleum refining, chemical industry, sewage treatment, etc.

[0016] The organic solvent pump is a pneumatic diaphragm pump commonly used in the chemical industry. It is suitable for conveying various corrosive liquids, liquids with particles, high viscosity, volatile organic matter, flammable and highly toxic liquids.

[0017] The shell and tube condenser is a conventional shell and tube heat exchanger in the petrochemical industry, which is composed of a shell, a heat transfer tube bundle, a tube sheet, a baffle (baffle) and a tube box. The shell is cylindrical, with a tube bundle inside, and the two ends of the tube bundle are fixed on the tube sheet. The hot and cold fluids for heat exchange, the hot gas and liquid materials flow in the tube, which is called the tube-side fluid; the other is the water of the cooling medium flowing outside the tube, which is called the shell-side fluid. In order to improve the heat transfer coefficient of the fluid outside the tube, several baffles are usually installed in the shell; the baffles can increase the shell-side fluid velocity, forcing the fluid to pass through the tube bundle horizontally for multiple times according to the specified distance, and enhance the turbulence of the fluid.

[0018] The heat exchanger 1 and the heat exchanger 2 are conventional shell and tube heat exchangers in the petrochemical industry, including a tube side and a shell side; the tube side is filled with flowing high-temperature liquid organic matter, and the shell side is filled with flowing cold hydrogen, which is converted into hot hydrogen after heat exchange, and the temperature of the high-temperature liquid organic matter decreases after heat exchange;

[0019] The transport vehicle mainly includes: a cab, an engine, a generator, a clutch, a gearbox, a power take-off configured on the gearbox, a chassis, a vehicle drive shaft and wheels; it can be a modified vehicle that uses the power output shaft of the power take-off externally connected to the vehicle gearbox to drive the generator to generate electricity, or a vehicle with an external power supply to charge the on-board battery; the transport vehicle can be a standard factory vehicle or a modified diesel, gasoline vehicle or new energy vehicle; the engine power of the transport vehicle should preferably be 80-350 horsepower; the transport vehicle can also be equipped with an external power socket, or an external power supply (220V or 380V) to provide electrical energy or thermal energy to the hydrogen storage and dehydrogenation equipment in the cargo box;

[0020] The cargo compartment can be a standard cargo compartment configured when the transport vehicle leaves the factory, or it can be a cargo compartment modified according to the following structure: the top of the cargo compartment is composed of two front top plates and a rear top plate that can slide in parallel and reciprocating manner, and several sets of pulleys at the bottom of the supporting slide plate; any top plate on the top of the cargo compartment can be moved parallel to one side of the other top plate, so that about half of the top area of ​​the cargo compartment can be opened to facilitate the operation, maintenance, replacement or lifting of equipment in the cargo compartment; the movement of the front top plate and the rear top plate can be electrically or manually operated; when the front top plate and the rear top plate on the top of the cargo compartment are returned to the two ends respectively, the top of the cargo compartment will be completely closed, and the top of the cargo compartment and the side door panels are combined to form a three-dimensional cargo compartment as a whole; the front top plate and the rear top plate can be moved up and down The left and right side door panels of the cargo compartment of the transport vehicle can be divided into two upper and lower parts, each side door panel can be arbitrarily extended upward or downward within the angle range of 0-90 degrees, and the extended side door panels are controlled and stabilized by a hydraulic device; when all the extended side door panels on the sides of the cargo compartment are closed and the top of the cargo compartment is sealed, the upper and lower front and rear left and right side panels of the cargo compartment are combined into a whole cargo compartment; each side door panel, front top panel and rear top panel can be fixed with locks; the left and right side door panels of the cargo compartment can also adopt the double-door leaf structure of a traditional postal express special vehicle, which is locked on the center line of the two door leaves, and the two door leaves can be opened left and right; the two side door panels of the cargo compartment and the rear door of the cargo compartment can also adopt the traditional box truck structure.

[0021] The liquid organic matter is an unsaturated liquid organic matter such as olefins, alkynes or aromatic hydrocarbons (or hereinafter referred to as oil). The hydrogen storage liquid organic matter commonly used in industry includes dibenzyltoluene, decalin, carbazole, N-ethylcarbazole, dimethylindole, benzene and toluene. In 1975, O.Sultan and M.Shaw first proposed the idea of ​​using a recyclable liquid chemical hydrogen carrier to store hydrogen, thus opening up the research field of this new hydrogen storage technology. The principle of liquid organic hydrogen storage technology (LOHC for short) is to achieve hydrogen storage (chemical bonding) with the help of catalysts and reversible reactions and hydrogenation reactions between unsaturated liquid organic matter such as olefins, alkynes or aromatic hydrocarbons and hydrogen, and to achieve hydrogen release with the help of dehydrogenation reactions. In LOHC, hydrogen is chemically bonded to organic hydrocarbon carrier molecules (hydrogenation) under the action of catalysts, and can be released in the reverse process (dehydrogenation). The mass hydrogen storage density is 5%-10%, the hydrogen storage capacity is large, and the hydrogen storage material is liquid organic matter, which can be transported at room temperature and pressure, which is convenient and safe. In principle, each unsaturated organic compound (organic molecule with carbon-carbon double or triple bonds) can absorb hydrogen during the hydrogenation process. In the process of hydrogenation and dehydrogenation, the catalyst can not only reduce the reaction temperature, but also improve the reaction rate of chemical hydrogen storage technology.

[0022] Cyclohexane uses the reversible chemical reaction of benzene-hydrogen-cyclohexane to achieve hydrogen storage. It has a high hydrogen storage capacity and is liquid at room temperature. The dehydrogenation product benzene is also liquid at room temperature and pressure, which is convenient for transportation. Methylcyclohexane dehydrogenation produces hydrogen and toluene, and both methylcyclohexane and toluene are liquid at room temperature and pressure. Therefore, methylcyclohexane is also an ideal hydrogen storage carrier. Figure 6 ;

[0023] Benzene and toluene have large hydrogen storage capacity, and the theoretical hydrogen storage capacity of benzene and toluene is 7.19% and 6.18% respectively, which is much larger than the hydrogen storage capacity of traditional metal hydrides (hydrogen storage capacity is mostly 1.5% to 3.0%); decalin has strong hydrogen storage capacity and is liquid at room temperature, but continuous loss of raw materials may occur during hydrogenation, dehydrogenation and transportation; the above three media belong to traditional organic liquid hydrogen storage materials, and they have a common disadvantage that the dehydrogenation temperature is high, such as the dehydrogenation temperature of cyclohexane is above 270°C; the dehydrogenation temperature of methylcyclohexane is at least 230°C according to different conditions, and can reach up to 400°C; the dehydrogenation temperature of decalin is also above 240°C; carbazole can be hydrogenated at 250°C and dehydrogenated at 220°C; ethylcarbazole is a colorless flaky crystal at room temperature and pressure, can be rapidly hydrogenated at 150°C to 190°C, and dehydrogenated at 170°C to 210°C, and is a relatively ideal hydrogen storage medium.

[0024] The solid catalyst (36) described in the utility model is a nickel-based catalyst in the form of an elongated strip or granular form, and is used for the hydrogenation reaction of hydrogen and unsaturated hydrocarbons, such as a Raney-Ni catalyst, an SCB-1 benzene hydrogenation catalyst, which uses nickel as a hydrogenation active component and alumina as a main carrier, and a known Ni-Mo / Al2O3 type hydrogenation catalyst; the utility model preferably uses a DL-1 type solid catalyst (Raney-Ni-W-Co / Al2O3) (produced by Beijing Kangqiao Century Environmental Technology Co., Ltd.);

[0025] In the hydrogen storage and dehydrogenation process of the utility model:

[0026] (i) After the hydrogen source continuously enters the hydrogen buffer tank (23), the hydrogen (cold hydrogen) is pressurized (the pressure is controlled at 3-6 MPa) by the hydrogen compressor 2 (21), and the hydrogen (cold hydrogen) passes through the heat exchanger 1 (26) and the heat exchanger 2 (44) in turn to absorb the heat released by the hydrogenation reaction, so that the temperature of the cold hydrogen raw material is increased, and the thermal efficiency of the hydrogenation catalytic reaction is improved. This is one of the characteristics of the utility model;

[0027] (ii) The hydrogenation reaction of hydrogen and liquid organic matter is an exothermic reaction. The reaction heat must be promptly conducted away from the system. Otherwise, a large amount of heat will accumulate in the catalytic reactor, forming a vicious cycle, resulting in a sudden rise in the temperature of the catalyst bed (flying temperature). In the least, the catalyst will be damaged and its service life will be reduced. In the worst case, it may cause a serious equipment or pipeline explosion accident. Therefore, in the hydrogenation catalytic reactor of the utility model, the catalyst (36) is packed in multiple layers or groups. For example, the catalytic reactor is divided into a tubular fixed bed catalytic reactor 1 (48) and a tubular fixed bed catalytic reactor 2 (39) for use in series or in parallel. The tubular fixed bed catalytic reactor 1 (48) A certain amount of cold hydrogen is injected into the tubular fixed bed catalytic reactor 2 (39) to control the catalytic reaction temperature, so as to extend the catalyst life and achieve the optimization of operation, increase or decrease the reaction temperature, and have a decisive influence on the hydrogenation conversion rate; the utility model continuously extracts the hydrogen (cold hydrogen) separated in the gas-liquid separator (13) by the hydrogen compressor 1 (4) and sends it to the tubular fixed bed catalytic reactor 1 (48) and the tubular fixed bed catalytic reactor 2 (39), and uses the circulating cold hydrogen to cool the hydrogen reaction, control and adjust to maintain the appropriate temperature required for the catalytic reaction; this is one of the characteristics of the utility model;

[0028] (III) The hydrogen-to-oil ratio (V / V) of the liquid organic matter (hereinafter referred to as oil) and the working hydrogen of the utility model is 50 to 300:1. The working hydrogen is composed of new hydrogen and circulating hydrogen. Hydrogenation is a volume reduction reaction. Increasing the hydrogen partial pressure or the hydrogen-to-oil ratio is beneficial to the hydrogenation reaction. High-pressure hydrogenation can inhibit the occurrence of carbon deposition, prevent the catalyst from deactivating, and extend the life of the catalyst, which is beneficial to the reaction and improves the degree of preventing the coking of the liquid organic matter on the catalyst surface. The presence of a large amount of circulating hydrogen in the utility model can also timely discharge the catalytic reaction heat from the system, so that the temperature of the entire catalyst bed is stable and easy to control; The key to high-pressure hydrogenation is to use a high-pressure resistant tubular fixed-bed catalytic reactor. The utility model uses a tubular fixed-bed catalytic reactor. The tubular equipment is resistant to high pressure and is suitable for hydrogenation reaction under high hydrogen partial pressure. A high hydrogen-to-oil ratio can be selected for rapid hydrogen storage, which increases the hydrogen storage capacity per unit time. The hydrogenation or dehydrogenation of the utility model is carried out in the same tubular fixed-bed catalytic reactor, which is safe in production, simple in structure, and easy to operate, so that an industrial device for hydrogenation of liquid organic matter is realized; in particular, hydrogen and liquid organic matter are always treated in the cyclic flow process of the hydrogenation reaction; this is one of the characteristics of the utility model;

[0029] (iv) In order to configure a high-yield hydrogen storage / dehydrogenation device in a vehicle cargo box with a narrow area and limited height, the utility model configures multiple groups of highly limited tubular fixed-bed catalytic reactors to carry out hydrogenation or dehydrogenation reactions, which is one of the features of the utility model;

[0030] (V) The utility model utilizes the engine and power take-off on the transport vehicle to generate electricity, and the electricity supplies the electric energy required for the hydrogen storage or dehydrogenation process, thereby overcoming the defect that the special-purpose vehicle cannot store or supply hydrogen in an environment without power supply; this is one of the features of the utility model;

[0031] (VI) The top of the cargo box of the utility model is equipped with an openable slide plate, and the left and right side panels of the cargo box can be opened, which is convenient for the operation of hydrogen storage or dehydrogenation personnel and more conducive to the dissipation of hydrogen that may leak during production, ensuring safe production; this is one of the characteristics of the utility model;

[0032] The "liquid organic hydrogen storage" LOHC technology described in the utility model is a method of storing, transporting and dehydrogenating hydrogen, which uses organic hydrides to react with catalysts at elevated temperatures and pressures to perform hydrogenation / dehydrogenation reactions; the chemical principle of liquid organic hydrogen storage is: under the action of a solid catalyst, a pair of reversible reactions between unsaturated liquid organic matter and hydrogen, that is, a reversible reaction of catalytic hydrogenation and dehydrogenation is achieved, the hydrogenation reaction realizes hydrogen storage (chemical bonding), and the dehydrogenation reaction realizes hydrogen release;

[0033] During hydrogenation, the catalytic reaction of hydrogenating benzene (such as liquid organic matter) to produce cyclohexane is an addition reaction, and the total heat balance of the addition reaction is an exothermic reaction. Continuously removing the heat generated in the addition reaction is conducive to the reversible reaction to generate cyclohexane in the direction of hydrogen storage; on the contrary, during dehydrogenation, the decomposition of cyclohexane into benzene (such as liquid organic matter) and hydrogen is an endothermic reaction. Continuously heating cyclohexane is conducive to the reversible reaction to produce benzene (such as liquid organic matter) and hydrogen products in the reverse direction under the action of the catalyst; the utility model uses diesel in the vehicle tank as fuel to burn in the heating furnace to heat the circulating liquid organic matter or provide the required heat for the dehydrogenation reaction, and uses room temperature air as a cooling medium to cool the hydrogenation reaction to absorb the heat released during the hydrogen storage or hydrogenation reaction;

[0034] The key to organic liquid hydrogen storage is to select a suitable hydrogen storage medium; the key performance indicators to be considered in selecting organic hydrogen storage medium include: 1) high mass hydrogen storage and volume hydrogen storage performance; 2) suitable melting point, which can make it a stable liquid at room temperature; 3) stable composition, high boiling point, and not easy to volatilize; 4) high ring chain stability during dehydrogenation, no pollution of hydrogen, high purity of hydrogen release, and easy dehydrogenation; 5) the cost of the hydrogen storage medium itself; 6) many cycles of use; 7) low toxicity or non-toxic;

[0035] Unsaturated organic liquids such as olefins, alkynes, and aromatics can be used as hydrogen storage materials. Aromatics are the best hydrogen storage agents. Commonly used organic liquid hydride hydrogen storage agents include benzene, toluene, carbazole, and naphthalene. The hydrogen storage capacity of liquid organic hydrogen storage materials is higher than 6wt%, and the hydrogen storage density is higher than 50kg / m 3In principle, every unsaturated compound (organic molecule with double or triple carbon-carbon bonds) can absorb hydrogen during the hydrogenation process. Organic liquid hydrogen storage technology uses certain hydrogen storage agents such as olefins, alkynes or aromatic hydrocarbons and hydrogen to produce a reversible reaction to achieve hydrogenation and dehydrogenation. In LOHC, hydrogen is chemically bonded to the organic hydrocarbon carrier molecule (hydrogenation) and can be released in the reverse process (dehydrogenation).

[0036] The advantages of this utility model are:

[0037] 1. The special vehicle described in the utility model can implement a one-stop service of hydrogen storage, hydrogen transportation and dehydrogenation and high-pressure hydrogen supply in a scientific and energy-saving manner, solving the problems of complicated processes, multiple links, low efficiency and high cost of hydrogen storage, hydrogen transportation and dehydrogenation and hydrogen supply; it has the advantages of high hydrogen storage capacity of transport vehicles, short operation process, low equipment investment, low operating cost, safety and reliability, and all-round scientific operation and management;

[0038] 2. The hydrogen transportation and dehydrogenation of the utility model are carried out at normal pressure. The normal pressure transportation of hydrogen is safe and reliable, which overcomes the potential safety hazards of high-pressure bottle hydrogen storage during transportation. In particular, it overcomes the need for heavy pressure-resistant containers for high-pressure hydrogen storage and operation, and consumes a large amount of hydrogen compression work, overcomes unsafe factors such as easy leakage of hydrogen and explosion of containers, overcomes the high requirements for high-pressure storage tank materials for high-pressure hydrogen storage, high tank manufacturing costs, and the potential safety risks of high-pressure storage of hydrogen;

[0039] 3. The cargo box roof of the transport vehicle described in the utility model can slide parallel or open, which is convenient for the upward emission of trace hydrogen leaked in the cargo box, and prevents the occurrence of hydrogen "explosion gas" in the cargo box. The left and right side panels of the cargo box can be freely extended upward or downward within the angle range of 0-90 degrees, which is convenient for workers to operate;

[0040] 5. The utility model uses multiple sets of hydrogenation / dehydrogenation tubular catalytic reactors with limited cargo box height in series or in parallel, which greatly increases the output of hydrogen storage and dehydrogenation applications in vehicle cargo boxes;

[0041] 5. The utility model adopts a tubular fixed bed catalytic reactor, and the tubular equipment is resistant to high pressure and safe to operate;

[0042] 7. The cold hydrogen of the utility model absorbs the heat released by the hydrogenation catalytic reaction and converts it into hot hydrogen, thereby improving the thermal efficiency of the hydrogenation reaction;

[0043] 8. The utility model uses circulating cold hydrogen to cool the hydrogen reaction, control and adjust to maintain the appropriate temperature required for the catalytic reaction;

[0044] 9. The utility model adopts a pressure-resistant tubular fixed-bed catalytic reactor. The tubular equipment can withstand high pressure. A high hydrogen-to-oil ratio or increased hydrogen partial pressure can timely discharge the catalytic reaction heat from the system, making the temperature of the entire catalytic bed stable and easy to control. A high hydrogen-to-oil ratio is adopted to increase the hydrogen partial pressure, thereby improving the hydrogenation reaction speed and the hydrogenation reserve per unit time.

[0045] 10. The utility model utilizes the engine and power take-off on the transport vehicle to generate electricity, and the electricity supplies the electric energy required for the hydrogen storage or dehydrogenation process, thereby overcoming the defect that the special vehicle cannot store or supply hydrogen in an environment without power supply;

[0046] 11. The utility model carries out hydrogenation or dehydrogenation in the same tubular fixed bed catalytic reactor, which greatly saves equipment investment and reduces production energy consumption; BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 A schematic structural diagram of a special vehicle for storing, transporting and dehydrogenating hydrogen in the utility model;

[0048] Figure 2 The utility model is equipped with a cargo box structure schematic diagram of hydrogen storage, hydrogen transportation and dehydrogenation equipment;

[0049] Figure 3 A schematic diagram of the structure of a hydrogen storage, hydrogen transportation and dehydrogenation device of the utility model;

[0050] Figure 4 A rear view structural diagram of a cargo box of a hydrogen storage, hydrogen transportation and dehydrogenation device according to the utility model;

[0051] Figure 5 Schematic diagram of the structure of the generator configured on the special vehicle of the utility model:

[0052] Figure 6 A schematic diagram of the reversible chemical reaction of "methylcyclohexane--hydrogen--toluene" for achieving hydrogenation and releasing hydrogen described in the utility model;

[0053] exist Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5In the middle, 1-valve one, 2-valve two, 3-export one, 4-hydrogen compressor one, 5-import one, 6-pressure gauge one, 7-pipeline one, 8-import two, 9-export two, 10-liquid level line, 11-liquid organic matter, 12-export three, 13-gas-liquid separator, 14-sampling valve, 15-organic solvent pump, 16-vehicle fuel tank, 17-pipeline three, 18-shell and tube condenser, 19-pipeline four, 20-import three, 21-hydrogen compressor two, 22-export four , 23-hydrogen buffer tank, 24-export five, 25-pipeline five, 26-heat exchanger one, 27-valve three, 28-pressure gauge two, 29-cold hydrogen pipeline, 30-pressure gauge three, 31-inlet four, 32-cargo box rear door, 33-upper sieve plate two, 34-inlet five, 35-thermometer one, 36-solid catalyst, 37-lower sieve plate two, 38-inlet six, 39-tubular fixed bed catalytic reactor two, 40-thermometer two, 41-export six, 42-pipeline six, 43- pipeline seven, 44- heat exchanger two, 45- pipeline eight, 46- pipeline nine, 47- outlet seven, 48- tubular fixed bed catalytic reactor one, 49- import seven, 50- import eight, 51- import nine, 52- outlet eight, 53- gas-liquid mixer, 54- import ten, 55- pipeline ten, 56- heating pipe, 57- outlet nine, 58- heating furnace, 59- import eleven, 60- cargo box, 61- pulley, 62- front top plate of the top of the cargo box, 63- rear top plate of the top of the cargo box Top plate, 64-vehicle engine, 65-power take-off, 66-generator, 67-pulley, 68-vehicle clutch, 69-vehicle gearbox, 70-cargo box side door plate, 71-lock, 72-hydraulic device for extending and opening the door or retracting and closing the door of the cargo box side door plate, 73-transport vehicle, 74-vehicle drive shaft, 75-generator, 76-transport vehicle chassis, 77-wheel, 78-upper sieve plate one, 79-lower sieve plate one, 80-pipeline eleven, 81-hydrogen outlet pipe; DETAILED DESCRIPTION

[0054] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods, but the embodiments are not limited thereto.

[0055] The utility model discloses a special vehicle for storing, transporting and dehydrogenating hydrogen, which is mainly composed of a cargo box (60) equipped with hydrogen storage, transporting and dehydrogenating equipment and a transport vehicle (73); the cargo box (60) is a fixed cargo box or a movable cargo box on the vehicle; the hydrogen storage, transporting and dehydrogenating equipment comprises: a valve (1), a valve (2), a hydrogen compressor (4), a pressure gauge (6), a gas-liquid separator (13), a sampling valve (14), an organic solvent pump (15), a shell and tube condenser (18), a hydrogen compressor (21), a hydrogen buffer tank (23), a heat exchanger (26), a valve (27) and a valve (28). , pressure gauge 2 (28), pressure gauge 3 (30), thermometer 1 (35), tubular fixed bed catalytic reactor 2 (39), thermometer 2 (40), heat exchanger 2 (44), tubular fixed bed catalytic reactor 1 (48), gas-liquid mixer (53) and heating furnace (58); the above-mentioned equipment for storing, transporting and dehydrogenating hydrogen is arranged in a cargo box (60) to form a cargo box (60) equipped with a hydrogen storage, transporting and dehydrogenating hydrogen equipment; the above-mentioned cargo box (60) equipped with a hydrogen storage, transporting and dehydrogenating hydrogen equipment is fixed on a transport vehicle chassis (76) to form a whole to form a special vehicle for storing, transporting and dehydrogenating hydrogen;

[0056] The invention is characterized in that: the hydrogen outlet 5 (24) on the hydrogen buffer tank (23) is connected to the inlet 3 (20) of the hydrogen compressor 2 (21) through a pipeline, the outlet 4 (22) of the hydrogen compressor 2 (21) is connected to the shell side inlet of the heat exchanger 1 (26) through a pipeline 5 (25), the shell side outlet of the heat exchanger 1 (26) is connected to the shell side inlet of the heat exchanger 2 (44) through a pipeline 7 (43), the shell side outlet of the heat exchanger 2 (44) is connected to the inlet 10 (56) of the gas-liquid mixer (53) through a pipeline 8 (45), the outlet 8 (52) of the gas-liquid mixer (53) is connected to the tubular fixed bed catalytic reactor 1 (4 8) the top inlet nine (51) is connected to each other, the bottom outlet seven (47) of the tubular fixed bed catalytic reactor one (48) is connected to the tube side inlet of the heat exchanger two (44) through the pipeline nine (46), the tube side outlet of the heat exchanger two (44) is connected to the top inlet four (31) of the tubular fixed bed catalytic reactor two (39) through the pipeline six (42), the bottom outlet six (41) of the tubular fixed bed catalytic reactor two (39) is connected to the tube side inlet of the heat exchanger one (26), the tube side outlet of the heat exchanger one (26) is connected to the tube side inlet of the shell and tube condenser (18) through the pipeline four (19), the tube side outlet of the shell and tube condenser (18) is connected to the tube side inlet of the shell and tube condenser (18) through the pipeline six (42). The outlet of the process is connected to the top inlet 2 (8) of the gas-liquid separator (13) through the pipeline 1 (7), the top outlet 2 (9) of the gas-liquid separator (13) is connected to the inlet 1 (5) of the hydrogen compressor 1 (4) through the pipeline, the outlet 1 (3) of the hydrogen compressor 1 (4) is connected to the inlet of the valve 1 (1) and the inlet of the valve 2 (2) through the pipeline, the outlet of the valve 1 (1) is configured with a hydrogen outlet pipe (81), the outlet of the valve 2 (2) is connected to the inlet 8 (50) and the inlet 7 (49) of the tubular fixed bed catalytic reactor 1 (48) through the cold hydrogen pipeline (29), and the outlet of the valve 2 (2) is connected to the inlet 8 (50) and the inlet 7 (49) of the tubular fixed bed catalytic reactor 1 (48) through the cold hydrogen pipeline (29). They are respectively connected to inlet five (34) and inlet six (38) of tubular fixed bed catalytic reactor two (39); the outlet of valve two (2) is connected to inlet ten (54) of gas-liquid mixer (53) through cold hydrogen pipeline (29); outlet three (12) of bottom of gas-liquid separator (13) is connected to inlet of organic solvent pump (15) through pipeline eleven (80); outlet of organic solvent pump (15) is connected to inlet eleven (59) of heating furnace (58) through pipeline three (17); outlet nine (57) of heating pipe (56) in heating furnace (58) is connected to inlet ten (54) of gas-liquid mixer (53) through pipeline ten (55);

[0057] The tubular fixed bed catalytic reactor (48) is a cylindrical metal sealed cylinder. The middle section of the cylinder is provided with an upper sieve plate (78) and a lower sieve plate (79). The side wall of the cylinder below the upper sieve plate (78) is provided with an inlet (50). The side wall of the cylinder below the lower sieve plate (79) is provided with an inlet (49). A solid catalyst (36) is placed between the upper sieve plate (78) and the lower sieve plate (79). The temperature sensing head of the thermometer (40) is inserted into the solid catalyst (36). The top of the tubular fixed bed catalytic reactor (48) is provided with an inlet (51). The bottom of the tubular fixed bed catalytic reactor (48) is provided with an outlet (47). The interior of the tubular fixed bed catalytic reactor (48) is filled with liquid organic matter (11). A pressure gauge (30) is inserted into the liquid organic matter (11). A hydrogenation reactor disclosed in the petrochemical industry may also be used.

[0058] The tubular fixed bed catalytic reactor 2 (39) is a cylindrical metal sealed cylinder, wherein the middle section of the cylinder is provided with an upper sieve plate 2 (33) and a lower sieve plate 2 (37), the cylinder side wall below the upper sieve plate 2 (33) is provided with an inlet 5 (34), the cylinder side wall below the lower sieve plate 2 (37) is provided with an inlet 6 (38), a solid catalyst (36) is placed between the upper sieve plate 2 (33) and the lower sieve plate 2 (37), the temperature sensing head of the thermometer 1 (35) is inserted into the solid catalyst (36), the top of the tubular fixed bed catalytic reactor 2 (39) is provided with an inlet 4 (31), the bottom of the tubular fixed bed catalytic reactor 2 (39) is provided with an outlet 6 (41), the interior of the tubular fixed bed catalytic reactor 2 (39) is filled with liquid organic matter (11), and a pressure gauge 1 (6) is inserted into the liquid organic matter (11); a hydrogenation reactor disclosed in the petrochemical industry may also be used;

[0059] The heating furnace (58) is a petrochemical cylindrical tube heating furnace, which is commonly used as a heating furnace equipment for atmospheric and vacuum distillation of crude oil; the heating furnace is composed of a radiation chamber, a convection chamber, a waste heat recovery system, a burner and a ventilation system; a coil is arranged in the heating furnace; the coil is a seamless high-temperature resistant steel pipe, and the seamless high-temperature resistant steel pipe contains flowing liquid organic material. The outer wall of the coil in the heating chamber is heated by the combustion of electric heat, fuel oil or gas, so as to heat and raise the temperature of the flowing liquid organic material in the seamless high-temperature resistant steel pipe;

[0060] The hydrogen compressor 1 (4) and hydrogen compressor 2 (21) are common hydrogen compressor models including QB, DSR, and FXY, respectively having different compression ratios and exhaust volumes. Among them, the QB series is the basic model, the DSR series is the high-pressure model (≥15MPa), and the FXY series is the large-displacement model.

[0061] The gas-liquid separator (13) is a conventional gas-liquid separator in the chemical industry, and is a closed tank body. The top of the tank body is provided with a second gas-liquid material inlet (8) and a second outlet (9), the bottom of the tank body is provided with a third liquid organic matter outlet (12), and the liquid surface line (10) in the tank body is located at a position of 2 / 3 to 4 / 5 of the height of the tank body; the outlet pipe on the side at a position of 1 / 2 of the height of the tank body is provided with a sampling valve (14), and the outlet pipe is inserted into the liquid organic matter;

[0062] The gas-liquid mixer (53) is a commonly used "gas-liquid" two-phase mixing device in industry. Its basic working mechanism is to use a mixing unit fixed in a tube to change the flow state of the fluid in the tube, so as to achieve good dispersion and sufficient mixing between different gas and liquid fluids. The device is widely used and is a high-efficiency mixing device without moving parts. It relies on the special structure of the mixing unit and the movement of the fluid to disperse and mix immiscible fluids. Compared with traditional mixing equipment such as agitators, colloid mills, homogenizers, and venturi tubes, static mixers have the advantages of compact structure, low energy consumption, low investment, high operational flexibility, no maintenance, and good mixing performance. It can replace traditional related equipment in all processes involving liquid-liquid, liquid-gas, liquid-solid, gas-gas mixing, emulsification, neutralization, absorption, extraction, reaction, and enhanced heat transfer. Therefore, it is widely used in the mixing of substances in petroleum refining, chemical industry, sewage treatment, etc.

[0063] The organic solvent pump (15) is a pneumatic diaphragm pump commonly used in the chemical industry and is suitable for conveying various corrosive liquids, liquids with particles, high viscosity, volatile organic matter, flammable and highly toxic liquids.

[0064] The shell and tube condenser (18) is a conventional petrochemical industry shell and tube heat exchanger, which is composed of a shell, a heat transfer tube bundle, a tube sheet, a baffle (baffle) and a tube box; the shell is cylindrical, and a tube bundle is installed inside, and the two ends of the tube bundle are fixed on the tube sheet; the hot and cold fluids for heat exchange, the hot gas and liquid materials flow in the tube, which are called tube-side fluids; the other is water as a cooling medium flowing outside the tube, which is called shell-side fluid. In order to increase the heat transfer coefficient of the fluid outside the tube, a number of baffles are usually installed in the shell; the baffles can increase the shell-side fluid velocity, forcing the fluid to pass through the tube bundle horizontally for multiple times according to the specified distance, thereby enhancing the turbulence of the fluid;

[0065] The heat exchanger 1 (26) and the heat exchanger 2 (44) are conventional petrochemical industry shell and tube heat exchangers, including a tube side and a shell side; the tube side is filled with flowing high-temperature liquid organic matter, and the shell side is filled with flowing cold hydrogen, which is converted into hot hydrogen after heat exchange, and the temperature of the high-temperature liquid organic matter decreases after heat exchange;

[0066] The transport vehicle (73) mainly comprises: a cab, an engine (64), a generator (75), a clutch (68), a gearbox (69), a power take-off (65) arranged on the gearbox, a chassis (76), a vehicle drive shaft (74) and wheels (77); it can be a modified vehicle that uses the power output shaft of the power take-off (65) connected to the vehicle gearbox (69) to drive the generator (75) to generate electricity, or a vehicle with an external power supply to charge the vehicle battery; the transport vehicle can be a standard factory vehicle or a modified diesel, gasoline vehicle or new energy vehicle; the engine power of the transport vehicle should preferably be 80-350 horsepower; the transport vehicle can also be equipped with an external power socket, or an external power supply (220V or 380V) to provide electrical energy or thermal energy to the hydrogen storage and dehydrogenation equipment in the cargo box (60);

[0067] The cargo compartment (60) can be a standard cargo compartment configured when the transport vehicle (73) leaves the factory, or it can be a cargo compartment modified according to the following structure: the top of the cargo compartment (60) is composed of two front top plates (62) and rear top plates (63) that can slide in parallel and reciprocating manner, and several groups of pulleys (61) at the bottom of the supporting slide plate; any top plate on the top of the cargo compartment can be moved parallel to one side of the other top plate, so that about half of the area of ​​the top of the cargo compartment can be opened to facilitate the operation, maintenance, replacement or lifting of equipment in the cargo compartment; the movement of the front top plate (62) and the rear top plate (63) can be operated electrically or manually; when the front top plate (62) and the rear top plate (63) on the top of the cargo compartment are returned to the two ends respectively, the top of the cargo compartment will be completely closed, and the top of the cargo compartment and the side door panels (70) are combined to form a three-dimensional cargo compartment as a whole; the front top plate (62) and the rear top plate (63) ) can be locked and fixed, the left and right side door panels (70) of the cargo compartment of the transport vehicle can be divided into two upper and lower parts, each side door panel (70) can be arbitrarily extended in the upward or downward direction within the angle range of 0-90 degrees, and the extended side door panels (70) are controlled and stabilized by a hydraulic device (72); when all the extended side door panels on the sides of the cargo compartment are closed and the top of the cargo compartment is sealed, the upper and lower side panels of the cargo compartment are combined into a whole cargo compartment; each side door panel (70), front top panel (62) and rear top panel (63) can be fixed with a lock buckle (71); the left and right side door panels (70) of the cargo compartment can also adopt the double door leaf structure of a traditional postal express special vehicle, which is locked on the center line of the two door leaves, and the two door leaves can be opened left and right; the two side door panels (70) of the cargo compartment and the rear door (32) of the cargo compartment can also adopt the traditional box truck structure.

[0068] The technical principle of implementing a hydrogen storage and dehydrogenation method using the special vehicle is as follows:

[0069] 1. Use the power take-off device of the vehicle engine to drive the 220V or 380V power generated by the generator to drive the power equipment on the hydrogen storage device and the dehydrogenation device;

[0070] 2. Using liquid organic hydrogen storage technology (LOHC for short) for hydrogen storage / dehydrogenation, that is, using organic hydride to react with catalyst under elevated temperature and changed pressure to carry out hydrogenation / dehydrogenation reaction; under the action of solid catalyst, a pair of reversible reactions between unsaturated liquid organic matter and hydrogen are realized by using the reversible reaction of catalytic hydrogenation and dehydrogenation, the hydrogenation reaction realizes hydrogen storage (chemical bonding), and the dehydrogenation reaction realizes hydrogen release; in LOHC, hydrogen is chemically bonded to organic hydrocarbon carrier molecules (hydrogenation) under the action of catalyst, And it can be released in the reverse process (dehydrogenation); the mass hydrogen storage density is 5%-6%, the hydrogen storage capacity is large, the hydrogen storage material is liquid organic matter (such as dibenzyltoluene, decalin, carbazole, N-ethylcarbazole, dimethyl indole, benzene and toluene), and it can be transported at room temperature and pressure, which is convenient and safe; in principle, each unsaturated organic compound has an organic molecule with a carbon-carbon double bond or triple bond, and can absorb hydrogen during the hydrogenation process; in the process of hydrogenation and dehydrogenation, the catalyst can not only reduce the reaction temperature, but also improve the reaction rate of chemical hydrogen storage technology;

[0071] The following embodiments are used to describe the utility model in more detail, but are not limited thereto.

[0072] Example

[0073] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5, using Dongfeng Chenglong M3V box truck (model: LZ5161XXYLAS, engine: Yuchai YC4E160-33 / 160, 160 horsepower (or 120KW); box length 7.65 meters, width 2.4 meters, height 2.5 meters; load capacity 10 tons) as a transport vehicle (73), parking the special vehicle for hydrogen storage, transportation and dehydrogenation at a factory for hydrogen production by electrolysis of water, starting the vehicle engine (64) to drive the power take-off (65) to work, the power take-off (65) drives the generator (75) to generate electricity to supply power to the electrical equipment on the special vehicle; opening the rear door (32) and side door panel (70) of the cargo box (60) for easy operation; putting the 9 made in the factory 9.99% hydrogen is added to the hydrogen buffer tank (23) through valve three (27). The room temperature hydrogen (or cold hydrogen) in the hydrogen buffer tank (23) is first transported to the shell side of heat exchanger one (26) for heat exchange, and then transported to the shell side of heat exchanger two (44) for heat exchange. The hot hydrogen after heat exchange is transported to the LS-1-300 static gas-liquid mixer (53). At the same time, the gas-liquid separation is carried out by using the ZCQ-5.5 self-priming organic solvent pump (15). The toluene in the reactor (13) is a liquid organic matter (11) (hereinafter referred to as "oil") and is transported to a heating furnace (58) heated by a 200,000 kcal fuel burner for indirect heating to 180-210° C. The heated toluene liquid organic matter (11) is transported to a gas-liquid mixer (53). In the gas-liquid mixer (53), hydrogen and the toluene liquid organic matter (11) are mixed. The mixed material continuously enters a tubular fixed bed catalytic reactor (48). The mixed material directly contacts the DL-1 type granular catalyst [Raney-Ni-W-Co / Al2O3] (36) in the tubular fixed bed catalytic reactor (48) to generate a hydrogenation catalytic reaction. The catalytic reaction pressure in the tubular fixed bed catalytic reactor (48) is controlled at 2.5 MPa and the temperature is controlled at 180-210°C. The material after the hydrogenation catalytic reaction is continuously discharged from the bottom outlet (47) of the tubular fixed bed catalytic reactor (48). After heat exchange and cooling in the tube side of the heat exchanger (44), the material enters the tubular fixed bed catalytic reactor (39) and directly contacts with the DL-1 type granular catalyst [Raney-Ni-W-Co / Al2O3] (36) in the tubular fixed bed catalytic reactor (39) to undergo hydrogenation catalytic reaction. The catalytic reaction pressure in the tubular fixed bed catalytic reactor (39) is controlled at 2.5 MPa and the temperature is controlled at 180-210°C.5MPa, the temperature is controlled at 180-210°C, the material after the hydrogenation catalytic reaction is continuously discharged from the tubular fixed bed catalytic reactor 2 (39), after heat exchange in the heat exchanger 1 (26), it enters the shell and tube condenser (18) and is cooled to 25°C with water, and the cooled material is transported to the gas-liquid separator (13), in which the remaining greenhouse hydrogen (or cold hydrogen) not absorbed in the tubular fixed bed catalytic reactor 2 (50) is separated from the liquid organic matter, and the cold hydrogen is continuously recycled and utilized, and the cold hydrogen is used to absorb the hydrogenation reaction of the tubular fixed bed catalytic reactor 1 (48) and the tubular fixed bed catalytic reactor 2 (39). The heat released in the reaction is used to maintain the temperature of the hydrogen absorption catalytic reaction in the range of 180-210°C; cold hydrogen overflows from the top of the gas-liquid separator (13) and enters the ZW-0.52 / 2-250 type hydrogen compressor 1 (4), and the hydrogen compressor 1 (4) and the cold hydrogen pipeline (29) are used to continuously circulate the cold hydrogen to the tubular fixed bed catalytic reactor 1 (48) and the tubular fixed bed catalytic reactor 2 (39) to cool the exothermic hydrogenation catalytic reaction, or the hydrogen compressor 1 (4) and the cold hydrogen pipeline (29) are used to continuously transport the cold hydrogen to the tubular fixed bed catalytic reactor 1 (48) to cool the exothermic hydrogenation catalytic reaction and transport it to the tubular fixed bed catalytic reactor 2 (39). The exothermic hydrogenation catalytic reaction in the fixed bed catalytic reactor 2 (39) is cooled to maintain the temperature of the hydrogenation catalytic reaction in the range of 180-210°C, or the cold hydrogen is continuously transported to the hydrogenation catalytic reaction in the tubular fixed bed catalytic reactor 1 (48) through the gas-liquid mixer (53) by using the hydrogen compressor 1 (4) and the cold hydrogen pipeline (29) to replenish the hydrogen raw material; the liquid organic matter (11) in the gas-liquid separator (13) is continuously circulated by using the organic solvent pump (15) to heat the liquid organic matter (11) in the gas-liquid separator (13) through the heating furnace (58) and then enter the tubular fixed bed catalytic reactor 1 (48), the tubular fixed bed catalytic reactor 2 (48) and the tubular fixed bed catalytic reactor 2 (48) in turn after passing through the gas-liquid mixer (53). A hydrogenation catalytic reaction is carried out in the reactor 2 (39); after the catalytic reaction, the hydrogen is absorbed by the liquid organic matter (11) or stored in the liquid organic matter (11), and the pressure of the hydrogenation catalytic reaction is controlled at 2.5 MPa and the temperature is controlled at 180-210°C; in the exothermic hydrogenation catalytic reaction, the cold hydrogen produced by the gas-liquid separator (13) is transported to the tubular fixed bed catalytic reactor 1 (48) and the tubular fixed bed catalytic reactor 2 (39) through the cold hydrogen pipeline (29) by the hydrogen compressor 1 (4), and the circulating cold hydrogen is used to enter the catalytic reactor to cool the hydrogenation catalytic reaction, and control and adjust to maintain the appropriate temperature required for the catalytic reaction;.

[0074] Open valve (14) to take samples and detect the hydrogenation reaction of the liquid organic matter. When the hydrogen storage amount in the liquid organic matter is higher than 5.0wt% and the hydrogen storage density is higher than 50kg / m 3When the hydrogen storage operation is completed, the hydrogen storage amount is higher than 5.0wt% and the hydrogen storage density is higher than 50kg / m 3 The liquid organic matter (hereinafter referred to as "hydrogen oil") is stored in the gas-liquid separator (13), the tubular fixed bed catalytic reactor 1 (48) and the tubular fixed bed catalytic reactor 2 (39) for standby use, the hydrogen compressor 1 (4) and the hydrogen compressor 2 (21) are stopped, the organic volume pump (15) is stopped, and the circulation of cooling water in the shell and tube condenser (18) is turned off; the rear door (32) and the side door (70) of the cargo box (60) are closed, and the generator (75) is stopped from generating electricity;

[0075] In this embodiment, the volume ratio (V / V) of the liquid organic matter to the hydrogen gas is 50:1; the volume space velocity of the liquid organic matter is 5.0h -1 ; After storing hydrogen, the above-mentioned special vehicle for hydrogen storage, transportation and dehydrogenation is driven to a hydrogen vehicle refueling station, and the hydrogen stored in the special vehicle is transported to the hydrogen vehicle refueling station. The product model of the container is: GJ06-4010-H2-20, the working pressure of the gas cylinder is 20MPa, the number of gas cylinders is 6, the total volume of the gas cylinders is 24.06m3, and the material of the gas cylinders is 413X;

[0076] The operation method of dehydrogenating or releasing hydrogen is as follows: starting the vehicle engine (64) to drive the power take-off (65) to work, and the power take-off (65) drives the generator (75) to generate electricity to supply power to the electrical equipment on the special vehicle; opening the rear door (32) and the side door panel (70) of the cargo box (60) to facilitate personnel operation; closing valve two (2), closing valve three (27), closing hydrogen compressor two (21), opening valve one (1), connecting the hydrogen outlet pipe (81) to the air inlet of the hydrogen cylinder in the above-mentioned centralized box; then, starting the hydrogen compressor one (4) and starting the organic solvent pump (15) to rotate, and hydrogenating the liquid organic matter (in The hydrogen oil (hereinafter referred to as "hydrogen oil") is transported to a heating furnace (58) for heating to 235-240°C. The heated "hydrogen oil" passes through a gas-liquid mixer (53) and then enters a tubular fixed bed catalytic reactor 1 (48) and a tubular fixed bed catalytic reactor 2 (39) in sequence, so that the "hydrogen oil" reacts with the DL-1 type granular catalyst [Raney-Ni-W-Co / Al2O3] (36) in the tubular fixed bed catalytic reactor 1 (48) and the tubular fixed bed catalytic reactor 2 (39) to undergo a dehydrogenation catalytic reaction. The temperature of the dehydrogenation catalytic reaction is controlled at 235-240°C, the pressure is maintained at normal pressure, and the space velocity of the solid catalyst is 4h -1The "hydrogen oil" is decomposed into hydrogen and liquid organic matter after being heated and reacted with the catalyst. The mixture of hydrogen and liquid organic matter enters the shell and tube condenser (18) and is condensed into room temperature. The mixture at room temperature is transported to the gas-liquid separator (13) for gas-liquid separation. In the gas-liquid separator (13), hydrogen (cold hydrogen) overflows from the second outlet (9) of the gas-liquid separator (13) and passes through the ZW-0.52 / 2-250 hydrogen compressor (4) (produced by Bengbu Aote Compressor Co., Ltd., air-cooled, equipment weight 180kg, electric power 37kw) , suction pressure 0.2MPa, outlet pressure 25MPa) is extracted, and hydrogen is transported to the hydrogen cylinder in the above-mentioned container (model: GJ06-4010-H2-20) through valve 1 (1) and hydrogen outlet pipe (81) for storage for standby; the separated liquid organic matter is stored at the liquid level line (10) of the gas-liquid separator (13), and the liquid organic matter stored in the gas-liquid separator (13) is continuously extracted and transported to the heating furnace (58) for heating and temperature rise by using the organic solvent pump (15), so as to carry out the above-mentioned dehydrogenation catalytic reaction process in a cycle;

[0077] Open the valve (14) to take samples and detect the dehydrogenation catalytic reaction of the liquid organic matter. When the hydrogen storage amount in the liquid organic matter is less than 0.5wt%, the dehydrogenation or hydrogen release is completed: that is, the operation of the hydrogen compressor (4) is turned off, the operation of the organic solvent pump (15) is stopped, the operation of the heating furnace (58) is stopped, and the valve (1) is closed at the same time; the rear door (32) and the side panel door (70) of the cargo box (60) are closed, and the generator (75) is stopped from generating electricity;

[0078] The relevant process parameters of hydrogen storage and dehydrogenation for the above-mentioned special vehicle are as follows:

[0079] (I) Special purpose vehicles

[0080] Model: Dongfeng Chenglong M3V box truck;

[0081] Vehicle dimensions: 7150×2500×3500 (mm);

[0082] Fuel type: diesel;

[0083] Car model: LZ5161XXYLAS;

[0084] Vehicle engine: Yuchai YC4E160-33 / 160, 160 horsepower (or 120KW);

[0085] The power of the generator configured with the power take-off is 80KVA (or 80KWH of electricity per hour), which supplies power to the power equipment for hydrogen storage and dehydrogenation;

[0086] (ii) The diameter of the tubular fixed bed catalytic reactor 1 (48) or the tubular fixed bed catalytic reactor 2 (39) is 1.6 meters and the height is 2 meters, i.e. the volume is 4m 3 The catalyst filling height is 0.5 meters and the catalyst filling volume is 1m 3 ; Liquid organic matter occupies a volume of 3m 3 The gas-liquid separator (13) has a diameter of 1.6 meters and a length of 2 meters, i.e. a volume of 4m 3 , its liquid organic matter loading capacity is 3m 3 The total loading amount of liquid organic matter in the tubular fixed bed catalytic reactor 1 (48), the tubular fixed bed catalytic reactor 2 (39) and the gas-liquid separator (13) is 8m 3 ;

[0087] (III) The hydrogenation / dehydrogenation catalyst is: DL-1 long strip catalyst [Raney-Ni-W-Co / Al2O3], with a crushing strength of 162N / cm and an apparent density of about 2.7g / cm 3 , length 4mm; the catalyst loading amount in the tubular fixed bed catalytic reactor 1 (48) is 2700kg, the catalyst loading amount in the tubular fixed bed catalytic reactor 2 (39) is 2700kg, and the total catalyst loading amount is 5400kg;

[0088] (iv) The liquid organic matter in this embodiment is toluene (referred to as oil), with a density of 0.86 g / ml, a boiling point of 138.35-144.42°C, and is liquid at room temperature. The total loading capacity of the liquid organic matter (toluene) in the tubular fixed bed catalytic reactor 1 (48), the tubular fixed bed catalytic reactor 2 (39) and the gas-liquid separator (13) in the special vehicle is 6880 kg;

[0089] (V) Hydrogenation catalytic reaction conditions: temperature is 180-210℃, pressure is 2.5MPa, liquid space velocity of liquid organic matter is 5h -1 , the hydrogen-to-oil ratio is 50:1;

[0090] (VI) Dehydrogenation catalytic reaction conditions: temperature is 235-240°C, pressure is atmospheric pressure, liquid organic matter liquid space velocity is 4h -1 ;

[0091] (VII) Hydrogenation or storage capacity: The amount of hydrogenation is 344 kg for 5.0% (wt%) of liquid organic matter, i.e. 6880×5.0%;

[0092] (VIII) Dehydrogenation amount: The hydrogen content in the liquid organic matter after dehydrogenation is 0.5% (wt%), and the amount of hydrogen removed is 328.52 kg: that is, 344-344 kg×(5.0-0.5)%.

[0093] (IX) Heating furnace (58): A 100,000 kcal diesel burner is used to heat the heating furnace (58) to raise the temperature of the liquid organic matter; the diesel comes from the fuel tank (16) of the transport vehicle (73);

[0094] (10) Cooling medium of shell and tube condenser (18): air cooling.

Claims

1. A special vehicle for hydrogen storage, transportation and dehydrogenation, mainly composed of a cargo box (60) equipped with hydrogen storage, transportation and dehydrogenation equipment and a transport vehicle (73); the cargo box (60) is a fixed cargo box or a movable cargo box on the vehicle; the hydrogen storage, transportation and dehydrogenation equipment comprises: Valve 1 (1), valve 2 (2), hydrogen compressor 1 (4), pressure gauge 1 (6), gas-liquid separator (13), sampling valve (14), organic solvent pump (15), shell and tube condenser (18), hydrogen compressor 2 (21), hydrogen buffer tank (23), heat exchanger 1 (26), valve 3 (27), pressure gauge 2 (28), pressure gauge 3 (30), thermometer 1 (35), tubular fixed bed catalytic reactor 2 (39), thermometer 2 (40) , heat exchanger 2 (44), tubular fixed bed catalytic reactor 1 (48), gas-liquid mixer (53) and heating furnace (58); the equipment for hydrogen storage, transportation and dehydrogenation is arranged in a cargo box (60) to form a cargo box (60) equipped with a hydrogen storage, transportation and dehydrogenation equipment; the cargo box (60) equipped with a hydrogen storage, transportation and dehydrogenation equipment is fixed on a transport vehicle chassis (76) to form a whole to form a special vehicle for hydrogen storage, transportation and dehydrogenation; The invention is characterized in that: the hydrogen outlet 5 (24) on the hydrogen buffer tank (23) is connected to the inlet 3 (20) of the hydrogen compressor 2 (21) through a pipeline, the outlet 4 (22) of the hydrogen compressor 2 (21) is connected to the shell side inlet of the heat exchanger 1 (26) through a pipeline 5 (25), the shell side outlet of the heat exchanger 1 (26) is connected to the shell side inlet of the heat exchanger 2 (44) through a pipeline 7 (43), the shell side outlet of the heat exchanger 2 (44) is connected to the inlet 10 (54) of the gas-liquid mixer (53) through a pipeline 8 (45), the outlet 8 (52) of the gas-liquid mixer (53) is connected to the tubular fixed bed catalytic reactor 1 (48) through a pipeline. ) is connected to the top inlet nine (51) of the tubular fixed bed catalytic reactor one (48), the bottom outlet seven (47) of the tubular fixed bed catalytic reactor one (48) is connected to the tube side inlet of the heat exchanger two (44) through the pipeline nine (46), the tube side outlet of the heat exchanger two (44) is connected to the top inlet four (31) of the tubular fixed bed catalytic reactor two (39) through the pipeline six (42), the bottom outlet six (41) of the tubular fixed bed catalytic reactor two (39) is connected to the tube side inlet of the heat exchanger one (26), the tube side outlet of the heat exchanger one (26) is connected to the tube side inlet of the shell and tube condenser (18) through the pipeline four (19), the shell and tube condenser (18) The outlet of the pipe side is connected to the top inlet 2 (8) of the gas-liquid separator (13) through the pipeline 1 (7). The top outlet 2 (9) of the gas-liquid separator (13) is connected to the inlet 1 (5) of the hydrogen compressor 1 (4) through the pipeline. The outlet 1 (3) of the hydrogen compressor 1 (4) is connected to the inlet of the valve 1 (1) and the inlet of the valve 2 (2) through the pipeline. The outlet of the valve 1 (1) is equipped with a hydrogen outlet pipe (81). The outlet of the valve 2 (2) is connected to the inlet 8 (50) and the inlet 7 (49) of the tubular fixed bed catalytic reactor 1 (48) through the cold hydrogen pipeline (29). The outlet of the valve 2 (2) is connected to the inlet 8 (50) and the inlet 7 (49) of the tubular fixed bed catalytic reactor 1 (48) through the cold hydrogen pipeline (29). They are respectively connected to inlet five (34) and inlet six (38) of tubular fixed bed catalytic reactor two (39); the outlet of valve two (2) is connected to inlet ten (54) of gas-liquid mixer (53) through cold hydrogen pipeline (29); outlet three (12) of bottom of gas-liquid separator (13) is connected to inlet of organic solvent pump (15) through pipeline eleven (80); outlet of organic solvent pump (15) is connected to inlet eleven (59) of heating furnace (58) through pipeline three (17); outlet nine (57) of heating pipe (56) in heating furnace (58) is connected to inlet ten (54) of gas-liquid mixer (53) through pipeline ten (55); The tubular fixed bed catalytic reactor (48) is a cylindrical metal sealed cylinder. The middle section of the cylinder is provided with an upper sieve plate (78) and a lower sieve plate (79). The side wall of the cylinder below the upper sieve plate (78) is provided with an inlet (50). The side wall of the cylinder below the lower sieve plate (79) is provided with an inlet (49). A solid catalyst (36) is placed between the upper sieve plate (78) and the lower sieve plate (79). The temperature sensing head of the thermometer (40) is inserted into the solid catalyst (36). The top of the tubular fixed bed catalytic reactor (48) is provided with an inlet (51). The bottom of the tubular fixed bed catalytic reactor (48) is provided with an outlet (47). The interior of the tubular fixed bed catalytic reactor (48) is filled with liquid organic matter (11). A pressure gauge (30) is inserted into the liquid organic matter (11). The tubular fixed bed catalytic reactor No. 2 (39) is a cylindrical metal sealed cylinder, wherein the middle section of the cylinder is provided with an upper sieve plate No. 2 (33) and a lower sieve plate No. 2 (37), the cylinder side wall below the upper sieve plate No. 2 (33) is provided with an inlet No. 5 (34), the cylinder side wall below the lower sieve plate No. 2 (37) is provided with an inlet No. 6 (38), a solid catalyst (36) is placed between the upper sieve plate No. 2 (33) and the lower sieve plate No. 2 (37), the temperature sensing head of the thermometer No. 1 (35) is inserted into the solid catalyst (36), the top of the tubular fixed bed catalytic reactor No. 2 (39) is provided with an inlet No. 4 (31), the bottom of the tubular fixed bed catalytic reactor No. 2 (39) is provided with an outlet No. 6 (41), the interior of the tubular fixed bed catalytic reactor No. 2 (39) is filled with liquid organic matter (11), and the pressure gauge No. 1 (6) is inserted into the liquid organic matter (11); The heating furnace (58) is a cylindrical tube heating furnace, and is composed of a radiation chamber, a convection chamber, a waste heat recovery system, a burner and a ventilation system; a coil is arranged in the heating furnace; and the coil is a seamless high-temperature resistant steel pipe; The hydrogen compressor 1 (4) and hydrogen compressor 2 (21) are hydrogen compressors, and the models include QB, DSR, and FXY, which have different compression ratios and exhaust volumes, respectively, among which the QB series is the basic model; The gas-liquid separator (13) belongs to a gas-liquid separator for the chemical industry and is a closed tank body. The top of the tank body is provided with a second gas-liquid material inlet (8) and a second outlet (9), the bottom of the tank body is provided with a third outlet (12), the liquid surface line (10) in the tank body is located at a position of 2 / 3 to 4 / 5 of the height of the tank body; the outlet pipe on the side at a position of 1 / 2 of the height of the tank body is provided with a sampling valve (14), and the outlet pipe is inserted into the liquid organic matter; The gas-liquid mixer (53) is an industrial "gas-liquid" two-phase mixing device; The organic solvent pump (15) is a pneumatic diaphragm pump; The shell and tube condenser (18) belongs to a shell and tube heat exchanger, and is composed of a shell, a heat transfer tube bundle, a tube sheet, and a baffle component; the shell is cylindrical, and a tube bundle is installed inside, and both ends of the tube bundle are fixed on the tube sheet; the hot and cold fluids for heat exchange, the hot gas and liquid materials flow in the tube, which are called tube-side fluids; the other is water as a cooling medium flowing outside the tube, which is called shell-side fluid, and a number of baffles are installed in the shell; The heat exchanger 1 (26) and the heat exchanger 2 (44) are shell and tube heat exchangers, including a tube side and a shell side; the tube side contains flowing high-temperature liquid organic matter, and the shell side contains flowing cold hydrogen; The transport vehicle (73) mainly comprises: a cab, an engine (64), a generator (75), a clutch (68), a gearbox (69), a power take-off (65) arranged on the gearbox, a chassis (76), a vehicle drive shaft (74) and wheels (77); a modified vehicle that uses the power output shaft of the power take-off (65) connected to the vehicle gearbox (69) to drive the generator (75) to generate electricity, or a vehicle with an external power supply to charge the vehicle battery; the transport vehicle is a vehicle produced by an automobile manufacturer or a modified diesel, gasoline vehicle or new energy vehicle; the transport vehicle can be equipped with an external power socket.

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