54 results about "Hydrogen compression" patented technology

The invention discloses a standby power supply system, and relates to the technical field of transformer substation power supply, a hydrogen production module is used for producing hydrogen by using commercial power or renewable power and then storing the hydrogen in a high-pressure gas storage tank of a hydrogen storage module, and the hydrogen storage module is provided with a one-way valve for the hydrogen to pass through in one way and a gas compressor for compressing the hydrogen to realize hydrogen conveying; after hydrogen stored in the hydrogen storage module is subjected to power generation through a fuel cell through the power generation module, the hydrogen is input into a storage battery pack of an uninterruptible power supply system of the transformer substation, and in the whole process, the control module detects the state of a main power supply and controls starting and stopping of the power generation module. The hydrogen production rate of the hydrogen production module and the hydrogen storage pressure of the hydrogen storage module are controlled, only water is generated in the power generation process, harmful emission is avoided, direct current generated by the fuel cell is directly matched with a UPS storage battery direct current bus, the response speed is high, conversion loss is reduced, the energy utilization efficiency is improved, the system automation degree is high, and the operation and maintenance cost is low.

The utility model belongs to the technical field of coal tar hydrogenation process, and relates to a sealing gas conveying system for sealing a circulating hydrogen compressor, which comprises a conveying pipeline and heating equipment, the conveying pipeline is connected with the outlet end of the compressor and used for conveying sealing gas. The heating device is arranged on the conveying pipeline and used for heating the sealing gas. According to the utility model, the process gas at the outlet end of the compressor is heated through the additionally arranged heating equipment, so that the process gas can be conveniently heated to the required temperature to serve as sealing gas, the load of the compressor does not need to be increased, unnecessary energy consumption of the compressor is avoided, and in addition, in the actual operation process, the energy consumption is reduced. The load of the compressor can be reduced according to actual process requirements, so that the process gas temperature at the outlet end of the compressor is reduced, and energy conservation and consumption reduction of the compressor are realized.

The application relates to the field of hydrogen production, in particular to a hydrogen compression device which comprises a shell, the shell is provided with an air outlet pipe for air outlet and an air inlet pipe for air inlet, a sealing nut is sleeved on the air outlet pipe and the air inlet pipe in a threaded mode, a flexible sealing ring is also sleeved on the air outlet pipe and the air inlet pipe, the flexible sealing ring is pressed on the shell by the sealing nut, an air-tight cover is further arranged on the shell, the air-tight cover wraps the connecting positions of the air outlet pipe and the shell and the air inlet pipe and the shell, a compensation runner is rotationally arranged in the air-tight cover, an air guide pipe is further arranged in the air-tight cover, the air guide pipe is used for guiding the hydrogen leaked from the air outlet pipe and the air inlet pipe to the compensation runner, a plurality of rotating blocks are arranged on the sealing nut, the compensation runner drives the sealing nut to rotate and press the flexible sealing ring. The application has the effect of improving the air tightness of the air-tight device.

Described herein are interpenetrating crosslinked ionomeric polymer network membranes comprising bis-arylimidazolium ionomeric polymers, a second polymer, and a cross-linking moiety, and methods of making the interpenetrating crosslinked ionomeric polymer network membranes. Such interpenetrating crosslinked ionomeric polymer network membranes are used in electrochemical devices such as fuel cells, electrolyzers, hydrogen pumps, thermoelectrochemical hydrogen pumps, electrochemical hydrogen compressors, redox flow batteries, and other electrochemical devices, and have application in fuel cells, water electrolyzers, hydrogen compression, hydrogen decompression, water purification, and battery products.

The utility model relates to a compressor technical field, concretely is a kind of air quantity stepless regulator applied to new hydrogen compressor.The utility model provides a kind of improved air quantity stepless regulator applied to new hydrogen compressor.It include compressor body, inlet valve, exhaust valve and stepless regulation control mechanism etc., the stepless regulation control mechanism is arranged at the top of compressor body, the adjustable outlet valve is also arranged at the top of compressor body.The moving rate of adjusting block is controlled by hydraulic cylinder, the opening and closing time of inlet valve and delay closing function can be realized accurately, make the excess gas before compression backflow to backflow cavity through exhaust valve, ensure that only the required gas volume is compressed, and then the indicated work consumption can be effectively reduced, and energy efficiency is improved;And when the pressure in compression cavity exceeds the set value, gas can be discharged through the exhaust valve of shaft side and the adjustable outlet valve of cover side double channel respectively, avoid that piston and connecting rod bear excessive one-way force, and then it is favorable to prolong the service life of key components.

The utility model relates to the field of petroleum chemical industry, concretely relates to a kind of aromatic oil hydrogenation device.The aromatic oil hydrogenation device includes: new hydrogen compressor, with opposite new hydrogen import and new hydrogen export;Import pipeline, one end is connected with new hydrogen import, the other end is suitable for being connected with pipe network;Outlet pipeline, one end is connected with new hydrogen export;Check valve is arranged on outlet pipeline, and flow orifice is arranged at check valve;Flow transmitter is also arranged on outlet pipeline, and flow transmitter is arranged behind check valve along the flow direction of hydrogen.The utility model relates to a kind of aromatic oil hydrogenation device, and the pressure and flow of hydrogen can be adjusted by new hydrogen compressor and flow orifice, to adapt to the use requirement of aromatic oil hydrogenation device.

The utility model discloses a multi-gas-valve cylinder cover structure of an ionic liquid hydrogen compressor, and belongs to the technical field of hydrogen compression equipment. Comprising an air valve assembly, an exhaust valve support, an air inlet valve support, a four-air-valve cylinder cover, a three-air-valve cylinder cover, a cylinder cover plate, a cylinder cover plate bolt, an air inlet connector and an exhaust connector. The four-air-valve cylinder cover can be provided with four air valve assemblies, and the three-air-valve cylinder cover can be provided with three air valve assemblies. By means of the structure, the intake and exhaust response speed of the ionic liquid hydrogen compressor is effectively increased, system power consumption is reduced, and effective control and rapid conversion of gas are achieved. Meanwhile, the space utilization rate is high, the maintenance cost is low, and wide application of the ionic liquid hydrogen compressor is facilitated.

A hydrogen energy storage device and a hydrogen energy storage method therefor, comprising a compression housing (1) and a hydrogen compression system, wherein a compression chamber (24) is provided inside the compression housing (1), an intake hood (2) is mounted on the top surface of the compression housing (1), an extension pipe (3) is mounted on the bottom surface of the intake hood (2), an intake valve (4) is mounted on the bottom surface of the extension pipe (3), and an upper storage tank (5) is mounted on the top surface of the intake hood (2); a pressure sensor monitors the real-time pressure value inside the upper storage tank (5) to determine the hydrogen capacity therein, and then obtains a fluctuation difference value which is analyzed and processed to generate a pressure-increasing signal or a pressure-reducing signal; a liquid level sensor analyzes the remaining space inside a lower storage tank, and processes pressure abnormality signals to obtain a liquid level discharge signal, a hydrogen discharge signal or a pressure-increasing signal; and different received signals respectively control activation of a condensation component or a conversion component to realize allocation of hydrogen storage space.

The ammonia production system comprises a hydrogen source and a hydrogen compression unit, configured to compress hydrogen from the hydrogen source. The system further comprises a nitrogen source and a syngas compressor, configured to receive nitrogen from the nitrogen source and hydrogen from the hydrogen compression unit, and further configured to compress a syngas including a mixture of hydrogen and nitrogen and deliver the compressed gas mixture to an ammonia synthesis module. The hydrogen source and the nitrogen source are fluidly coupled to the syngas compressor. The hydrogen compression unit is configured to deliver hydrogen at pressures of 8 to 17 bar.

The application relates to an ionic liquid hydrogen gas compressor ionic liquid circulation and power-free injection liquid supplementing device, which comprises a hydrogen gas pressurizing cylinder, a gas-liquid separator and an ionic liquid circulation system; the hydrogen gas pressurizing cylinder comprises a nozzle and a gas compression cavity; the ionic liquid circulation system comprises a pressure reducing valve, an ionic liquid tank and a proportional valve; high-pressure gas-liquid mixed fluid discharged from the compression outlet of the hydrogen gas pressurizing cylinder enters the gas-liquid separator, pure hydrogen gas separated out is stored into a hydrogen storage bottle, and the separated pure ionic liquid is reduced to a safe pressure through the pressure reducing valve and then enters the nozzle through the proportional valve, is atomized by the nozzle and is sprayed back into the gas compression cavity of the hydrogen gas pressurizing cylinder, and the leaked ionic liquid in the pressure reducing valve is poured back into the ionic liquid tank. The application utilizes the high pressure existing in the gas-liquid separator, directly sprays into the gas cavity of the hydrogen compressor in the form of atomization through the nozzle after a certain degree of pressure reduction, and plays the roles of cooling, heat dissipation and energy efficiency improvement.

The invention discloses an energy storage and energy supply control method of a hydrogen production and energy supply system and a related device, and the method comprises the steps: continuously generating hydrogen through a hydrogen production reaction device, carrying out the pretreatment, and conveying the hydrogen into a conveying shunting pipeline; the real-time filling requirement is obtained, the real-time filling amount of hydrogen needing to be filled currently is calculated, a pipeline valve is controlled to open a filling channel, and the hydrogen is conveyed to hydrogen using equipment to complete real-time filling; the difference value between the total hydrogen production amount and the real-time filling amount is calculated, the amount of residual hydrogen in the conveying flow dividing pipeline is determined, a pipeline valve is controlled to be switched to a storage channel, and hydrogen with the residual hydrogen amount is conveyed into a hydrogen compression device; and compressing the residual amount of hydrogen to a preset high-pressure state, and conveying the hydrogen to a high-pressure hydrogen storage tank for sealed storage. According to the hydrogen production and energy supply system, the filling passage and the storage passage are arranged, switching of the pipeline valves is triggered by calculating the hydrogen flow value, and the safety and efficiency of the energy storage function of the hydrogen production and energy supply system are effectively improved.

A control device, when a water electrolysis system is initiated, controls electrical power source devices in a manner so that a water electrolysis electrical current and a hydrogen compression electrical current increase gradually in coordination. During such gradual increasing, it is detected whether or not flooding has occurred in a hydrogen compression stack, and at a time when it is detected that flooding is occurring, until the flooding is eliminated, a flooding elimination control is carried out in which an increase in the water electrolysis electrical current and the hydrogen compression electrical current is temporarily suspended and the water electrolysis electrical current and the hydrogen compression current are maintained at a constant current value in coordination.

The invention relates to the technical field of coal tar, in particular to a multi-stage reactor for full-fraction hydrogenation of medium and low temperature coal tar. The new hydrogen treatment mechanism comprises a first outer box fixedly connected to the upper end face of the base, a deoxidation assembly, a convergence funnel, a desulfurization assembly and a drying assembly are sequentially arranged in the first outer box from top to bottom, and a new hydrogen compressor and an output assembly are arranged on the two sides of the first outer box correspondingly; the new hydrogen compressor and the output assembly communicate with the interior of the first outer box. According to the circulating hydrogen treatment mechanism, through a deoxidation assembly, a desulfurization assembly, a drying assembly and an output assembly in the new hydrogen treatment mechanism, pretreatment of deoxidation, desulfurization and drying is sequentially conducted on new hydrogen before the new hydrogen is input into the reactor, and harmful impurities in the hydrogen can be effectively removed; poisoning and inactivation of the catalyst are avoided, side reaction is inhibited, and the reactor and subsequent equipment are protected from corrosion.

Present disclosure relates to process for increasing the purity and recovery of hydrogen product stream obtained from a dehydrogenation process. The dehydrogenated effluent stream is separated to obtain the net gas stream. The net gas stream is compressed in a hydrogen compressor section. Even after compressing the net gas, traces of toluene are still present in the gas phase. Applicants have found to recover these toluene traces, the compressed gas from the hydrogen compressor section is chilled in a vapor economizer followed by a chiller to produce a chilled stream at a temperature of from about -27°C to about 17°C. This process also helps maintain the Wobbe Index of the hydrogen product stream in the range of about 44 to about 49 MJ / m3. In another embodiment, the compressed net gas stream from the hydrogen compressor section is adsorbed in an adsorption unit to separate hydrogen product stream from the recycle gas stream, wherein the recycle gas stream is completely recycled to the hydrogen compressor.

The invention relates to a method for preparing a high-value oil product through synergistic co-hydrogenation of waste plastics and waste lubricating oil. The method comprises the following steps: a) preparing waste plastics, waste lubricating oil and a catalyst in a raw material tank to form uniform mixed slurry; b) conveying the mixed slurry through a high-pressure feed pump, mixing the mixed slurry with hydrogen in a pipeline, preheating the mixed slurry to a certain temperature in a preheater, and carrying out a co-hydrogenation reaction in a multiphase flow reactor; c) a reaction product output by the multiphase flow reactor passes through a first-stage separator and a second-stage separator, a gas-phase product and a heavy liquid-phase product are obtained, part of the heavy liquid-phase product returns to the raw material tank for continuous reaction, and the rest part of the heavy liquid-phase product serves as fuel oil to be output from a device; and d) separating the gas-phase product by a three-stage separator, feeding the top gas into a recycle hydrogen compressor, feeding the bottom liquid into a fixed bed reactor for hydrofining, and separating the reaction product by a fractionating tower to obtain the light white oil and the lubricant base oil.

A compression device includes a hydrogen compressor and a return circuit having an inlet fluidly coupled with a discharge side of a centrifugal compressor and an outlet fluidly coupled with a suction side of the centrifugal compressor. A head loss control valve is positioned in the return circuit. The head loss control valve is adapted to generate a controlled head loss in the return circuit when the compressor operates at a lower flow rate than the surge control line.

The invention discloses a hydrogen supply and energy storage device which comprises a fixing frame, a storage outer tank, a storage inner tank, a safety box, a liquid hydrogen storage tank, a first heat exchange box, a second heat exchange box and a mounting box, and the invention further comprises an energy storage method of the hydrogen supply and energy storage device which comprises the following steps that S1, hydrogen is introduced; s2, hydrogen compression; s3, heat exchange and precooling; s4, liquid storage; and S5, reflux compression. In the hydrogen liquefaction process, the motor can be synchronously started, the nut can drive the wedge block to slide through the wedge face end above the nut, then the cleaning frame and the cleaning brush are driven to slide, the wedge block is gradually in extrusion contact with the shifting block in the forward sliding process, and the wedge block is gradually extruded into the sliding block box; and the cleaning frame is driven to reset under the action of a second spring, so that reciprocating sliding of the cleaning brush is achieved, and defrosting treatment is conducted on the heat exchange pipe and the pre-cooling pipe.

The invention relates to the technical field of hydrogen compression devices, discloses an efficient hydrogen compression device and method for a hydrogen refueling station, and solves the problem that an existing hydrogen compression device is poor in use effect. The ionic liquid compressor body is composed of a base, a bottom shell, a middle sleeve shell, a top cover, a driving assembly, a push rod, a cylinder sleeve, a driving piston, a flow stabilizing assembly, ionic liquid, a liquid inlet branch pipe and a liquid drainage branch pipe, the ionic liquid is located between the driving piston and the flow stabilizing assembly, and the liquid inlet branch pipe and the liquid drainage branch pipe are connected to the two sides of the middle sleeve shell in a penetrating mode correspondingly. A liquid inlet hole communicated with the liquid inlet branch pipe is formed in the middle position of one side of the cylinder sleeve, a liquid drainage hole communicated with the liquid drainage branch pipe is formed in the middle position of the other side of the cylinder sleeve, and a flow guide channel matched with the liquid inlet hole and the liquid drainage hole is formed in the bottom end of the interior of the driving piston; by means of the device, efficient, stable and safe compression of hydrogen can be achieved.

The invention discloses a bifunctional catalyst for ammonia synthesis and decomposition and a reaction separation system, the bifunctional catalyst is a ruthenium-based catalyst, the active component of the bifunctional catalyst is Ru nano-particles, the Ru nano-particles are loaded on a perovskite type carrier La1-xSrxAlO3 (x is greater than or equal to 0.2 and less than or equal to 0.3), the loading amount of Ru is 2-4wt%, and the particle size is 3-6nm. The system integrates a bifunctional reactor, an ammonia permeable membrane assembly, a recycle gas compressor, a nitrogen-hydrogen compressor, a condenser, an ammonia storage tank, a hydrogen-nitrogen separation membrane assembly and a valve group, and flexible conversion between ammonia synthesis and decomposition modes is realized through valve switching. In an ammonia synthesis mode, efficient circulation of unreacted hydrogen and nitrogen can be achieved, and the total conversion rate is larger than or equal to 90%; in an ammonia decomposition mode, ammonia can be efficiently decomposed, high-purity hydrogen can be obtained through separation, and the decomposition rate reaches 90%. The system has the advantages of high catalyst universality, high integration level, low equipment investment, low energy consumption and the like, and is suitable for the field of green ammonia energy storage and hydrogen energy conversion.

A new hydrogen branch pipe and a sealing pipe are arranged on a buffer tank, the sealing pipe is communicated with an air cylinder high-pressure end air inlet pipe and an air cylinder low-pressure end air inlet pipe of the circulating hydrogen centrifugal compressor, and a one-way valve I and a stop valve I are arranged on the sealing pipe. A circulating hydrogen header pipe is arranged at the exhaust end of the circulating hydrogen centrifugal compressor, and the stop valve I is electrically connected with the DCS. According to the utility model, by utilizing the convenience of the device placement position in a plant, the exhaust pipe is arranged on the new hydrogen compressor and is communicated with the buffer tank, and the cylinder high-pressure end air inlet pipe and the cylinder low-pressure end air inlet pipe are respectively arranged between the buffer tank and the cylinder high-pressure end air inlet and the cylinder low-pressure end air inlet of the circulating hydrogen compressor; and the air cylinder high-pressure end air inlet pipe and the air cylinder low-pressure end air inlet pipe are designed to be connected in parallel, are communicated through a tee joint and then are communicated with the sealing pipe, so that high-purity hydrogen is conveyed into the circulating hydrogen centrifugal compressor to serve as air cylinder body sealing gas.

The application discloses a kind of industrial by-product hydrogen compression purification system and method, system includes no gas valve mechanical compressor, atomizer, electrochemical compressor, dehumidifier and gas tank;First atomizer is set in the compression cavity of no gas valve mechanical compressor, for in the process of no gas valve mechanical compressor compression to the compression cavity in water spray;The compressed gas outlet of no gas valve mechanical compressor is connected with the anode side inlet of electrochemical compressor by pipeline and is equipped with second atomizer for hydrogen humidification in pipeline;The cathode side of electrochemical compressor is equipped with the atomizer for humidifying the cathode membrane of electrochemical compressor;The cathode side outlet of electrochemical compressor is connected with gas tank and is equipped with dehumidifier for hydrogen dehumidification on the connecting pipeline.The application fully combines the characteristics of mechanical compressor and electrochemical compressor, designs efficient and feasible system, and obtains relatively pure high-pressure hydrogen.

A continuous thermal hydrogen compression system, and methods of thermally compressing hydrogen, are disclosed. A hydrogenation module accepts a hydrogen gas stream to be absorbed or adsorbed to a lean carrier stream through heat removal, thereby producing a heat output and a rich carrier stream containing absorbed or adsorbed hydrogen. A pump, connected to an output of the hydrogenation module, increases the pressure of the rich carrier stream to produce a pressurized rich carrier stream. A dehydrogenation module separates, via an addition of heat, a pressurized hydrogen gas stream from the pressurized rich carrier stream to produce a lean carrier stream. A pressure reducing device reduces the pressure of the lean carrier stream before it is returned to the hydrogenation module. The carrier stream is cycled continuously between the hydrogenation module and the dehydrogenation module.

The application relates to a liquid hydrogen hydrogenation station and a running method thereof, the liquid hydrogen hydrogenation station comprising a liquid hydrogen gasification system, a hydrogen compression storage system, a hydrogen refueling system and a cold storage system, the liquid hydrogen gasification system directly gasifies liquid hydrogen into gaseous hydrogen and then delivers the gaseous hydrogen to the hydrogen compression storage system for pressure storage, and the stored hydrogen is used for the hydrogen refueling system; the cold storage system comprises a cold box and a cold storage heat exchange assembly, and the cold box stores the liquid hydrogen gasification cold quantity. Compared with the prior art, the application has the advantages that the cold quantity during hydrogen gasification is stored and applied by arranging the cold storage system, energy saving and environmental protection are achieved, cold supply is accurately performed on cold demand ends with different temperature requirements by arranging cold boxes with multiple temperatures, and the service life of equipment is prolonged, the cold storage system comprises a solid cold box, the cold storage quantity per unit volume of the cold box is improved, and the construction cost of the hydrogenation station is reduced.

This invention discloses a power generation system for a PEMFC fuel cell, belonging to the field of natural gas hydrogen production technology. The power generation system of this invention includes a methanol-water hydrogen production module, a CO deep purification module, a gas regulation module, a compatible PEMFC stack, and an intelligent control module connected in sequence. Unlike the traditional pure hydrogen system's "hydrogen production-purification-compression-power generation" structure, it eliminates PSA purification and pure hydrogen compression steps, reducing system construction and fuel costs. Furthermore, it reduces several core devices, simplifies the structure, and shrinks the system size, making it suitable for vehicle-mounted and portable power supply scenarios. Through flow channel optimization and pressure regulation, the power generation efficiency reaches 92%~95% of traditional systems, and even after 2000 hours of continuous operation, the performance degradation rate remains less than or equal to 5%. In addition, the CO2 in the hydrogen-rich gas mixture is an inert gas, which can reduce the risk of combustion and explosion in the event of hydrogen leakage.

This invention relates to a liquid hydrogen pressurized hydrogen refueling station and its operation method. The liquid hydrogen pressurized hydrogen refueling station includes a liquid hydrogen vaporization system, a hydrogen compression and storage system, a hydrogen refueling system, and a cold storage system. The liquid hydrogen pressurization pump (10) in the liquid hydrogen vaporization system pressurizes the liquid hydrogen, and the pressurized liquid hydrogen vaporizes into gaseous hydrogen, which is then transported to the hydrogen compression and storage system for storage. The stored hydrogen is used in the hydrogen refueling system. The cold storage system stores the cooling capacity generated during liquid hydrogen vaporization. Compared with the prior art, this invention has the advantages of energy saving and environmental protection by storing and utilizing the cooling capacity generated during hydrogen vaporization through the cold storage system; providing precise cooling to the cooling demand end with different temperature requirements by setting up multiple temperature-controlled cold boxes, extending the service life of the equipment; and increasing the cooling capacity per unit volume of the cold box by including a solid cold box in the cold storage system, thus reducing the construction cost of the hydrogen refueling station.

This invention belongs to the technical field of ionic liquid compressors, and particularly relates to an anti-splash liquid cylinder device, an ionic liquid compressor, and a gas compression method. An anti-splash liquid cylinder device includes a fixed piston, a movable cylinder, an ionic liquid, and a hydraulic rod. The movable cylinder includes a cylinder body and a cylinder rod. The fixed piston is disposed within the movable cylinder, and the outer diameter of the fixed piston is the same as the inner diameter of the movable cylinder. One end of the cylinder rod is connected to the inner wall of the cylinder body, and the other end of the cylinder rod passes through the fixed piston and is fixedly connected to the hydraulic rod. An inlet valve and an exhaust valve are provided on the cylinder body. The space enclosed by the inner wall of the cylinder body and the upper surface of the fixed piston is denoted as a first cavity. The ionic liquid is located on the upper surface of the fixed piston. This invention can prevent the ionic liquid from splashing within the cylinder, improve hydrogen compression efficiency, and prevent hydrogen leakage.

The invention relates to the technical field of hydrogen compression pumps, and discloses a positive displacement hydrogen compressor pump body assembly which comprises a compression pump assembly, the output end of the compression pump assembly is connected with a piston pressure relief piece, the air outlet end of the piston pressure relief piece is connected with a cooling tank, and the air outlet end of the cooling tank is connected with a first pressurization assembly. The air outlet end of the first pressurizing assembly is connected with a secondary pressurizing assembly and a storage tank, the air outlet end of the secondary pressurizing assembly is communicated with the air conveying end of the storage tank, and control parts are arranged outside the first pressurizing assembly and the secondary pressurizing assembly. According to the invention, synchronous acquisition of concentration, corrosion, flow velocity and temperature multi-dimensional risk factors in a hydrogen conveying process is realized; the corrosion area and the corrosion depth are accurately and quantitatively calculated through the preprocessing module, the defects that in the prior art, the monitoring dimension is single, and corrosion risks are difficult to accurately recognize are overcome, and potential safety hazards such as hydrogen leakage, pipeline corrosion, flow velocity abnormity and temperature fluctuation can be comprehensively captured.

A composite film comprising: a porous base material comprising a polyolefin microporous film; a silica material having a matrix containing silica and having a sulfonic acid group on at least the surface of the matrix; and an ion exchange resin. The composite membrane has a Gurley value of 1,000 sec / 100 mL or more.

The ammonia production system comprises a hydrogen source and a hydrogen compression unit, adapted to compress hydrogen from the hydrogen source. The system further comprises a nitrogen source and a syngas compressor, adapted to receive nitrogen from the nitrogen source and hydrogen from the hydrogen compression unit, and further adapted to compress a syngas including a mixture of hydrogen and nitrogen and deliver the compressed gas mixture to an ammonia synthesis module. The nitrogen source is fluidly coupled to the hydrogen compression unit, such that in use the hydrogen compression unit compresses a blend containing hydrogen and nitrogen.

This utility model provides an electrically controlled PSA multi-stage compression system for hydrogen production from coke oven gas, including a control system, a first-stage hydrogen compressor, a second-stage hydrogen compressor, a third-stage hydrogen compressor, a cooler, a flow meter, a temperature and pressure transmitter, an adsorption tower, a coarse desulfurization tower, a desulfurization tower, an oil filter tank, a pre-hydrogenation converter, a second-stage hydrogenation converter, a steam heater, a temperature controller, and a gas analyzer. The control system transmits measurement data from the instruments and analyzer to the control system, which controls the compressor and temperature control equipment. Coke oven gas enters the first-stage hydrogen compressor for initial pressurization, then enters the cooler for cooling, then enters the adsorption tower, then enters the coarse desulfurization tower to remove inorganic sulfur, and then enters the second-stage hydrogen compressor for secondary pressurization, then enters the oil filter tank, then enters the steam heater for heating, then enters the pre-hydrogenation converter, then enters the temperature controller for temperature adjustment, then enters the second-stage hydrogenation converter, and finally enters the desulfurization tower and the third-stage hydrogenation compressor for further pressurization of hydrogen.