402 results about "Hydrogen compressor" patented technology

A method of operating an integrated hydrogen production and processing system is provided. The method includes operating an electrolyzer to produce hydrogen from water and utilizing heat generated from the electrolyzer to increase a temperature of an electrolyte in a first mode of operation. The method also includes heating the electrolyte in a second mode of operation by extracting heat from a hydrogen compressor to increase or maintain the temperature of the electrolyte during periods when electrolysis is not performed in the electrolyzer or during startup of the electrolyzer.

The invention discloses a start-up method for an ex-situ prevulcanization secondary activity center hydrogenation catalyst. After resistance to air loss of a device is qualified, circulating hydrogen compressor working load is adjusted to 0-20% of a maximum load, the catalyst reacts at a low temperature to release heat; when the bed layer temperature rise to 60-150 DEG C, start-up activation oil is introduced, the circulating hydrogen compressor working load is adjusted to 60-100% of the maximum load for wetting of the catalyst; the start-up activation oil is cycled in a reaction system closed path, the catalyst bed temperature is risen to 180 to 230 DEG C by heat exchange; a proper amount of olefin-enriched naphtha is added into the start-up activation oil, the catalyst bed temperature is risen to 300-380 DEG C to complete start-up activation. The start-up method, in the premise of no influence on the use properties of the secondary activity center hydrogenation catalyst, can better use the catalyst characteristics, reduce the device energy consumption, and reduce the device investment cost, and the start-up process can be simplified.

The invention discloses a method of hydrocarbon oil liquid-solid two-phase hydrogenation; the method avoids the recycle hydrogen and the recycle hydrogen compressor; hydrogen is mixed with fresh raw oil and a part of recycle oil under the existence of solvent or diluent; after the gas is separated in the mixer, the mixture is fed into the reactor and is contacted with the catalyst for reaction after the gas is separated on top of the reactor; the other part of the recycle oil is mixed with hydrogen and solvent or diluent and the gas is separated; the mixture is all or partially fed into the bed of the catalyst; the effluent of the reaction is discharged from the bottom of the reactor for separation; the separated solvent or the diluent is used for recycle use; the liquid product is used as the product or the recycle oil; the solubility of hydrogen in solvent or diluent is more than the solubility of hydrogen in the mixture of fresh raw oil and solvent or diluent.

The invention relates to a hydrogen fuel car. The hydrogen fuel car comprises a car body, wheels, a power generator, a battery group, a hub motor, a hydrogen storing unit, a hydrogen internal combustion engine, a hydrogen fuel battery and an exhaust gas concentrated heat exchange unit, wherein the hydrogen storing unit is provided with two hydrogen outlets, one hydrogen outlet is connected to the hydrogen internal combustion engine through the exhaust gas concentrated heat exchange unit, a hydrogen compressor and a hydrogen buffering tank, and the other hydrogen outlet is connected to the hydrogen fuel battery. An air inlet is connected to the hydrogen internal combustion engine and the hydrogen fuel battery through an air filter and the exhaust gas concentrated heat exchange unit, and an exhaust opening of the hydrogen internal combustion engine is connected to an exhaust gas emission opening through the exhaust gas concentrated heat exchange unit. The hydrogen internal combustion engine is connected with a shaft of the power generator, both the power generator and the hydrogen fuel battery are connected with a battery group circuit, and the battery group is connected with the hub motor. By utilizing the hydrogen internal combustion engine to drive the power generator to generate power and utilizing the hydrogen fuel battery to generate power and drive the car to run, no greenhouse gas is emitted in the whole process, the pollution of emitted gas to air is reduced, and the use performance and safety of the hydrogen fuel car are obviously improved.

The invention relates to a hydrotreatment method. Heavy diesel fractions are used as material oil; under the hydrotreatment conditions, the material oil and hydrogen are mixed and pass through a first hydrotreatment reaction area; the oil generated by the hydrotreatment is separated in a high pressure separator; the gas obtained through separation is desulfurized; the liquid obtained through separation is mixed with the hydrogen after being desulfurized and pressurized by a circulated hydrogen compressor and then pass through a second hydrotreatment reaction area; the oil generated by the hydrotreatment is separated in the high pressure separator; the gas obtained through separation directly enters the first hydrotreatment reaction area; the liquid obtained through separation obtains a low-sulfur light oil product and a heavy oil product in a fractionating tower. Compared with the prior art, the method can effectively improve the hydrotreatment depth of the material oil; besides, the two hydrotreatment reaction areas only need one set of hydrogen circulating system; the device investment and the operation cost are low.

A hydrogen fuel supply system comprising a methanol aqueous solution particulates generator, spark-plasma heater, catalytic reactor, hydrogen separation unit, hydro-evaporating cooler, hydrogen compressor, hydrogen injection system, etc. By properly mixing methanol and water to form a methanol aqueous solution, then vibrated by a methanol aqueous solution particulates generator to form micro to nano sized particulates of aqueous-methanol, and the micro to nano sized particulates is then heated in high temperature by a spark-plasma heater, then through a catalytic reactor to form a gaseous mixture of hydrogen, carbon dioxide, and nitrogen. Then the hydrogen is separated by a hydrogen separation unit. Finally, the hydrogen is chilled by a hydro-evaporation cooler and then compressed by a hydrogen compressor. The resulting hydrogen can be supplied to hydrogen internal-combustion engines or hydrogen power generators by hydrogen injection systems.

The invention relates to a hydro-conversion combination method for a coal tar fraction with different boiling ranges, which comprises the following steps that: a first hydrogen fraction mainly comprising a coal tar light fraction is converted and separated at a first hydrogen device; a second hydrogen fraction mainly comprising a coal tar heavy fraction is converted and separated at a second hydrogen device; and two sets of the hydrogen devices share a circular hydrogen compressor; and the hydrogen light fraction obtained by the second hydrogen device enters a reaction part or a high fractionoil separating part of the first hydrogen device. The method can select respective proper hydrogen refining reaction conditions for the coal tar fraction with different boiling ranges, has the advantages of improving the quality of products, stabilizing the operation, reducing the energy consumption and catalyst consumption, prolong the operation cycle, simplifying the flow and the like, and is particularly suitable for large-scale classified combined hydro-conversion of medium-high temperature coal tar wide fractions.

The invention discloses a liquid phase hydrogenating method of hydrocarbon oil. In the method, recycle hydrogen and a recycle hydrogen compressor are cancelled; hydrogen reacts with fresh raw oil and partial recycle oil in the presence of a solvent or a diluent to form a mixture flow, and the mixture flow enters a reactor to contact with a catalyst; the other part of or all recycle oil is mixed with hydrogen, and an obtained mixture enters the reactor by a path or branches from spaces between catalyst bed layers of the reactor; partial reaction effluent is subjected to hydrogen sulfide removal and then used as recycle oil, and the other part enters a separator; and the solubility of the hydrogen in the solvent or the diluent is larger than that in the mixture of the fresh raw oil and the solvent or the diluent.

The present invention discloses a biphase hydrogenation method, which cancels circulating hydrogen and a circulating hydrogen compressor. Hydrogen is mixed with fresh crude oil and circulating oil under the existence of a solvent or a diluting agent so as to form a mixture flow; the mixture flows into a reactor to contact a catalyst; after the other part of the circulating oil is mixed with hydrogen for gas discharging, a circuit or a shunt circuit enters the reactor between reactor catalyst bed layers; after the solvent or the diluting agent is mixed with hydrogen for gas discharging, a circuit or a shunt circuit enters the reactor between reactor catalyst bed layers; the reacted effluent is used for gas-liquid separation and the liquid phase further separates the solvent or the diluting solvent for recycling use; a part of the separated liquid product is used as the product and the other part is used as the circulating oil.

The invention relates to an on-board hydrogen producing and adding station, characterized in that it comprises special transport vehicle; in the carriage of special transport vehicle, deflation water electrolysis equipment, low-pressure hydrogen storing group, special hydrogen compressor, high-pressure hydrogen storing group and hydrogen selling machine, which are connected in series, are set; said deflation water electrolysis equipment, low-pressure hydrogen group, special hydrogen compressor, high-pressure hydrogen storing group and hydrogen selling machine are all connected with a control system in electricity; transformer are set in said special transport vehicle to introduce outer power supply and allocate it to said deflation water electrolysis equipment, low-pressure hydrogen storing group, special hydrogen compressor, hydrogen selling machine and the control system. In the invention the whole hydrogen producing and selling equipment is loaded in the carriage of a truck, the agility of hydrogen producing and selling is improved greatly.

The invention relates to a tail gas refining method, and in particular relates to a method for preparing refined hydrogen through deamination in tail gas generated by preparation of cyclohexylamine and dicyclohexylamine through aniline hydrogenation, belonging to the technical field of chemical engineering. The method comprises the following steps: allowing tail gas discharged by a cyclohexylamine device and a dicyclohexylamine device to enter an ammonia absorption tower by virtue of a Roche hydrogen compressor and a degreaser, wherein most of ammonia is absorbed by water to be converted into ammonia water to be output from the tower bottom in the tower, and the gas output from the tower top is water-containing hydrogen; allowing the water-containing hydrogen to pass through a water segregator, a fiber filter and a water adsorption tower so as to further remove water vapor, thereby obtaining the refined hydrogen. The concentration of the refined hydrogen can be 98.0-99.8 percent, the material and energy consumption is reduced, and the aims of energy conservation and emission reduction are achieved. The refined hydrogen can serve as recycling gas to be used for an aniline hydrogenation reaction, and gas phase zero emission is realized.

The invention provides a hydrofining process integration method, which comprises: (1) a jet fuel hydrofining device is not provided with a hydrogen gas compressor and uses hydrogen from other hydrofining device which is arranged by a hydrogen pipe network or combination; hydrogeneous gas obtained by hydrogenation reaction enters into the other hydrofining device; (2) the product of the jet fuel hydrofining device - stripping tower uses hot oil of the other hydrofining device as heat source to strip air. Aiming at the characteristic that the jet fuel hydrofining device often makes up a combination unit with the other hydrofining device, the jet fuel hydrofining device has small relative handing capacity and low hydrogen consumption, the method rationally uses devices and heat energy resources of the combination unit, optimizes flow proposal of the jet fuel hydrofining device, and has the advantages of conserving energy, lowering consumption, reducing investment outlay, etc.

The multi stage hydrogen compression and delivery system for internal combustion engines utilizing a working fluid (HCDS-IC_WF-Multi) consists of a thermally driven multi compression stage metal hydride hydrogen compressor in line with high pressure hydrogen storage tanks and a pressure regulating hydrogen delivery system that supplies a controlled release of hydrogen to the internal combustion engine. The working fluid carries the thermal energy needed to the metal hydride compression stages to drive the hydrogen compression. The compressor is intended to be inseparable from the storage tank to ensure safe operation.

The invention relates to gas supercharging purification equipment, in particular to a continuous hydrogen feeding device which is applicable to 35MPa hydrogen supercharging purification. The equipment solves the problems that gas emitted by a traditional mechanical hydrogen compressor with oil contains oil and affects the normal operation of a fuel cell and that abrasion occurs in the moving parts in a mechanical hydrogen compressor without oil. The equipment consists of a first level supercharging system, a second level supercharging system and a thermal exchange device. The pressure of hydrogen of general purity (purity is lower than 99 percent) is 1 to 2MPa and increases to 35MPa after passing through the first level supercharging system and the second supercharging system, and the purity of the hydrogen of general purity is higher than 99.999 percent. In the process of hydrogen supercharging and liquid circulation, a control and data collecting system collects and processes the data of temperature, pressure and flow rate, and controls the switching state of various valves in the system. The equipment has the advantages of high automation, all-around measurement parameters, high energy efficiency, convenient operation, high efficiency, safe operation, convenient maintenance, low investment and low noise, etc.

The invention belongs to the technical field of pulverized coal pyrolysis oil refining device, and particularly relates to a composite coal hydrogenation oil refining reactor and an oil refining method, mainly aiming at solving the problems of high resource consumption, serious environmental pollution, high cost and the like of existing coal hydrogenation pyrolysis reaction. The composite coal hydrogenation oil refining reactor disclosed by the invention comprises a gasifier, a reactor, a high-temperature cyclone separator, an oil-gas separation tower and a carbon monoxide conversion system, wherein the top of the gasifier is communicated with a reactor; the top of the reactor is communicated with the high-temperature cyclone separator; a bottom outlet of the a high-temperature cyclone separator is communicated with a semicoke inlet of the gasifier through a semicoke pipeline; a top outlet of the high-temperature cyclone separator is connected with an oil-gas inlet of the oil-gas separation tower through a gas pipe; a gas outlet in the top of the oil-gas separation tower is connected with an inlet of the carbon monoxide conversion system; an outlet of the carbon monoxide conversion system is connected with a hydrogen compressor; and an outlet of the hydrogen compressor is connected with one section of hydrogen inlet and two sections of hydrogen outlets.

The invention relates to a combination method for residue hydrotreatment, catalytic cracking heavy oil hydrogenation and catalytic cracking. A reaction product obtained by a residue hydrotreatment reactor is separated into gas phase material flow and liquid phase material flow, residue hydrogenation tail oil obtained by fractionating the liquid phase material flow is taken as a catalytic cracking raw material to enter into a catalytic cracking device, catalytic cracking heavy oil in the catalytic cracking product is mixed with the gas phase material flow of the residue hydrogenation reaction product to enter into a catalytic cracking heavy oil hydrogenation reactor, the hydrogenated catalytic cracking heavy oil is circularly returned into the catalytic cracking device. According to the invention, a residue hydrogenation device and the catalytic cracking device are organically combined for conversing the residual oil into light oil to maximum limit and raising the yield of gasoline and diesel oil. In addition, a hydrogen source and a hydrogen system of the existing residue hydrogenation device are fully used, the separated hydrogen source and a circular hydrogen compressor are not required to the catalytic cracking heavy oil hydrogenation which substantially saves the investment cost and operation cost.

The invention provides a distributed non-combustion type constant-temperature pressurized power generation system. The system comprises a water tank (1), a fuel storage tank (2), a fuel water proportioning pump (3), a mixer A (4), a fuel atomizer (5), a second heat exchanger (26), a first heat exchanger (25), dehydration tanks (27, 28 and 12), a carbon monoxide removal reactor (11), a catalytic combustion reactor (6), a fuel water reforming reactor (29), a composite air-cooling heat sink (22), a hydrogen-air pressure balancer (14), a fuel cell cooling liquid tank (13), a compressed air heat exchanger (23), a fuel cell cooling circulation pump (15), a recycled hydrogen compressor (21), a hydrogen-rich storage tank (19), a hydrogen recycle membrane separator (17), a hydrogen fuel cell pack (16), an exhaust purifier (7), an expansion compressor (9), a control valve (18), a (normal-pressure fuel water) vapor-liquid separator (20), a mixer B (8), a mixer C (10), a mixer D (24), a steam trap (30), a system controller (31), a one-way valve (41) and valves (42-54). By applying an energy state theory, a vapor-liquid two-phase coexistence constant-temperature condensation or evaporation principle and phase-change heat-transfer highest efficiency principle, hydrogen production by reforming and constant-temperature control on a hydrogen fuel battery are achieved.

The invention discloses a cooling and filling method for a hydrogen fuel used for a vehicle, and belongs to the technical field of gas fuel filling. The method is characterized by comprising the following steps of: (1) compressing and heating hydrogen from a hydrogen source by using a hydrogen compressor; (2) exchanging heat with a cooling pipeline through a heat exchange pipeline in a cooling heat exchange device to cool the compressed hydrogen in the heat exchange pipeline; and (3) connecting a filling gun of a filling and metering device with an on-vehicle hydrogen cylinder, and filling the compressed and cooled hydrogen into the on-vehicle hydrogen cylinder to finish filling. The method has the advantages that: not only the temperature of a gas cylinder can be controlled in a safety loading condition, but also the requirement on rapid filing of the vehicle can be met to ensure the safety of a filling process of the vehicle. The hydrogen filling time is short; and the safety and stability effects are very good. The method is not only suitable for the hydrogen filling of an on-vehicle gas cylinder under the pressure of 35 MPa, but also suitable for the hydrogen filling of the on-vehicle gas cylinder under the pressure of 70 MPa.

The invention disclosed an associated hydrogenating technology. The invention is about deep hydrogenationg refinement of poor quality ship-coal by neo-hydrogen (such as cyclane radical or cyclane intermediate radical). The gas which is rich in hydrogen is used as the supplementary gas in hydrocracking process of diesel oil; the invention adopts hydrocracking method to treat poor quality diesel oil; the gas which is rich in hydrogen can be recycled. In the invention, the poor quality ship-coal contacts the neo-hydrogen first so as to get the high-quality ship-coal products; by hydrocracking the diesel oil, the producer can produce high quality diesel oil directly, as well as some high quality ship-coal and high arene naphtha. The invention can save the investment of devices and equipments; it also has the advantage of less hydrogen consumption, less energy expenditure, and small circulated hydrogen compressor volume.

The invention relates to a device and method for preparing ethanol through acetic acid or acetic ester catalytic hydrogenation reaction. According to the device and method, acetic acid or acetic ester and hydrogen are used as raw materials, at least two reaction sections are connected in series, the acetic acid or acetic ester raw material is divided into two or more sections which enter each hydrogenation reaction section, liquid acetic acid or acetic ester or partially-liquid acetic acid or acetic ester feeds among the reaction sections to play a role in direct heat exchange and cooling and raw material supplementation, and a reaction system is provided with one recycle hydrogen compressor, so that the hydrogen acid ratio of the whole acetic acid or acetic ester hydrogenation reaction system is greatly reduced under the condition that the hydrogen acid ratio of each reaction area is higher. Compared with the prior art, by adopting the device and the method, industrial amplification of a process for producing ethanol through acetic acid or acetic ester hydrogenation is well realized, so that the device and the method can be widely applied to industrial production of ethanol.

The invention discloses a solid-liquid two phase hydrogenation method. In the method, the circulating hydrogen and a circulating hydrogen compressor are not used, hydrogen is mixed with fresh raw oil and circulating oil to form mixing material current in the presence of a solvent or a diluent, the mixing material current enters a reactor, a part of or all the circulating oil is mixed with the hydrogen, and enters the reactor from the catalyst bed interlayers through one path or a plurality of branch paths, a part of the reaction effluent is used as the circulating oil, and another part of the reaction effluent is separated to be the solvent or the diluent, the liquid product is the finished product, the gas with the volume percentage of between 0.1 and 15 percent is contained in the reactor according to the total volume of the reactor, and the solubility of the hydrogen in the solvent or the diluent is larger than that in the mixture of fresh raw oil and the solvent or the diluent.