216 results about "Gaseous hydrogen" patented technology

The invention discloses a hydrogen supply and energy storage device which comprises a hydrogen storage tank body, a gaseous hydrogen storage tank is installed in the hydrogen storage tank body, a liquid hydrogen storage tank is installed on the hydrogen storage tank body, a supporting plate is fixedly connected to the hydrogen storage tank body, and a cooling liquid storage box is installed at the top end of the supporting plate. A transverse plate is fixedly connected to the side wall of the cooling liquid storage box, metal cooling fins are arranged on the side wall of the transverse plate, and the cooling device further comprises a cooling circulation assembly and an air blowing cleaning assembly. A motor drives a first sector gear to rotate, the first sector gear is alternately engaged with a transmission gear and a driven gear, so that a rotating shaft drives metal heat dissipation fins to rotate for heat dissipation, and meanwhile, the driven gear drives cooling liquid to circularly flow in a sealing pipe, a cooling pipe and a liquid inlet pipe through a connecting rod and a piston rod; and cold airflow generated by the fan is used for dissipating heat of the hydrogen conveying pipe, so that the heat dissipation effect is improved.

A system and method for hydrogen storage, and delivery. The system includes a hydrogen storage tank, a first pump disposed within the hydrogen storage tank, and a second pump disposed outside of the hydrogen storage tank. The hydrogen storage tank is to store gaseous hydrogen and liquid hydrogen. The first pump is to pump out liquid hydrogen out of the storage tank, producing a low pressure flow. The second pump is to receive this low pressure flow and produces a high pressure flow of liquid hydrogen. The system can also include a thermal device disposed within the hydrogen storage tank to heat gaseous hydrogen when a pressure within the hydrogen storage tank drops below a predetermined minimum pressure. The system can also include a heat exchanger to receive the high pressure flow of liquid hydrogen from the second pump.

The invention relates to a system for storing liquid hydrogen and for distributing gaseous hydrogen, comprising a source of liquid hydrogen (20), at least two gaseous hydrogen tanks (31-35) to be filled and a transfer device comprising: a transfer unit (25) configured to transfer liquid hydrogen from the hydrogen source (20) to any of the tanks, a vapour compressor (10) having a first upstream end and a second downstream end fluidly connected to each of the tanks, a set of valves (51-55), a control device configured to issue a command to transfer the liquid hydrogen and to open and / or close one or more valves (51-55), the compressor (10) being arranged so as to transfer vapours created during filling from any tank to each of the other tanks in succession, by compressing the vapors to a pressure greater than the pressure in the tank during filling.

The invention discloses a solid-gas coupling hydrogen storage system and a flow and pressure coordinated regulation and control method thereof. The system comprises a gaseous hydrogen storage tank, a solid hydrogen storage tank, a hydrogen coupling regulation and control device, a hydrogen buffer tank, a solid hydrogen storage thermal management system, a high-pressure proportional valve, a low-pressure proportional valve, a three-way valve and a hydrogen storage valve. The gaseous hydrogen storage tank is connected with the hydrogen coupling regulation and control device through a pipeline, and high-pressure hydrogen is conveyed to the high-pressure inlet end of the hydrogen coupling regulation and control device. The low-pressure inlet end of the hydrogen coupling regulation and control device is connected with the solid hydrogen storage tank through a pipeline, and the outlet end of the hydrogen coupling regulation and control device is connected with the hydrogen buffer tank through a pipeline; and the pipelines of the gaseous hydrogen storage tank and the solid hydrogen storage tank are simultaneously connected with the three-way valve. According to the system, efficient and safe hydrogen storage and supply are achieved through the synergistic effect of all the components, and reliable technical innovation and support are provided for hydrogen energy application.

According to the gas-liquid mixing hydrogen refueling station system with the cooling capacity recovery and gradient utilization functions, flash steam of the low-temperature liquid hydrogen storage tank is collected and stored in the low-temperature hydrogen storage tank, the cooling capacity of the flash steam is fully utilized, cooling capacity is provided for the heat exchanger, high-pressure hydrogen is cooled, the cooling capacity of the low-temperature flash steam of the liquid hydrogen is fully utilized, and the cooling capacity of the low-temperature flash steam of the liquid hydrogen is fully utilized. Energy gradient utilization of cooling capacity is achieved, and loss of extra energy in the hydrogen refueling station is reduced; the flash steam obtained after heat exchange is further used for hydrogen compression, and reutilization of the low-temperature liquid hydrogen flash steam is achieved; the flash steam after heat exchange is pressurized and then cooled by using the cooling capacity of the high-pressure liquid hydrogen, and meanwhile, the heating gasification of the high-pressure liquid hydrogen is realized, namely the gasification of the pressurized liquid hydrogen in the liquid hydrogen refueling station and the cooling of a gas hydrogen pressurization process in the liquid hydrogen refueling station are coupled for heat exchange, so that the utilization efficiency of the heat and the cooling capacity is greatly improved; an external vaporizer is not needed for high-pressure liquid hydrogen gasification, an external cooler is not needed in the gas-hydrogen pressurization process, and energy consumption is greatly reduced.

The invention discloses a low-temperature quick-start solid hydrogen storage device which comprises an insulating heat preservation shell and further comprises a solid hydrogen storage tank, a gaseous hydrogen storage tank, an air-cooled hydrogen fuel cell, a hydrogen supply mechanism and a heating mechanism, the solid hydrogen storage tank and the gaseous hydrogen storage tank are fixedly arranged in the insulating heat preservation shell, the solid hydrogen storage tank is filled with hydrogen storage alloy powder, and the air-cooled hydrogen fuel cell is arranged in the insulating heat preservation shell. A gas communicating pipe is fixedly arranged between the gaseous hydrogen storage tank and the solid hydrogen storage tank, a one-way valve is arranged in the gas communicating pipe, the air-cooled hydrogen fuel cell is arranged on one side of the insulation heat preservation shell, and the low-temperature quick-start solid hydrogen storage device is used for solving the problem that in the prior art, a solid hydrogen storage bottle is poor in hydrogen desorption performance in a low-temperature environment.

The present invention relates to an alkaline electrolysis device comprising: - at least one electrolysis cell comprising a reactor chamber which comprises a hydrogen-side reactor chamber region containing the aqueous electrolyte for decomposing the aqueous electrolyte into gaseous hydrogen and an oxygen-side reactor chamber region containing the aqueous electrolyte for decomposing the aqueous electrolyte into gaseous oxygen; - a hydrogen separator connected to the hydrogen-side reactor chamber region for separating the gaseous hydrogen from the aqueous electrolyte introduced into the hydrogen separator; and - an oxygen separator connected to the oxygen-side reactor chamber region for separating the gaseous oxygen from the aqueous electrolyte introduced into the oxygen separator; wherein the hydrogen separator has a first hydrogen separator outlet for removing the aqueous electrolyte having a first hydrogen concentration and a second hydrogen separator outlet for removing the aqueous electrolyte having a second hydrogen concentration that is less than the first hydrogen concentration; and where the first hydrogen separator outlet and the second hydrogen separator outlet are connectable or connected to the reactor chamber.

A H2 defueling system for automating defueling of a hydrogen tank is disclosed. The H2 defueling system comprises: a hydrogen storage tank containing hydrogen; a plurality of electronic valves configured for regulating hydrogen discharge of hydrogen from the hydrogen tank; at least one pressure sensor and at least one temperature sensor; a hydraulic circuit interconnecting the hydrogen tank, the plurality of electronic valves, the at least one pressure sensor and the at least one temperature sensor; and a control unit configured to: receive input from the at least one pressure sensor and the at least one temperature sensor; automatically adjust the flow rate of gaseous hydrogen from the storage tanks based on the input from the sensors to maintain the gaseous hydrogen within pressure limits; modulate operations of the plurality of electronic valves to control hydrogen discharge to control the flow of hydrogen from the hydrogen tank.

A propulsion system comprises a propulsive hydrogen-burning gas turbine engine, a first tank storing liquid hydrogen with an ullage and a first fuel line including a fuel pump and a vaporiser, the first fuel line providing gaseous hydrogen to the engine during operation of the system. A second tank storing gaseous hydrogen is coupled by a second fuel line to the first fuel line at a position thereon between the vaporiser and the engine, providing for engine start-up (when the vaporiser is inoperative) and power-boosting during operation of the system. A duct connects gaseous hydrogen within the second tank to the ullage in the first tank in order maintain pressure in the first tank as liquid hydrogen within it is depleted, preventing cavitation of liquid hydrogen within the fuel pump.

The invention discloses a method, a system, a medium and equipment for predicting hydrogen in oxygen of an alkaline electrolysis system, and the method comprises the steps: obtaining a total calculation formula for predicting hydrogen in oxygen of the alkaline electrolysis system based on the contribution of dissolved hydrogen which is not separated by a gas-liquid separator, gaseous hydrogen which is not separated by the gas-liquid separator, electrolytic bath saturation diffusion and electrolytic bath supersaturation diffusion mechanisms to hydrogen in oxygen of the system; according to experimental data of the alkaline electrolysis system under different alkaline liquid circulation flow working conditions, calibrating a to-be-fitted coefficient; according to experimental data of the alkaline electrolysis system under different system pressure working conditions, calibrating a to-be-fitted coefficient; according to experimental data of the alkaline electrolysis system under different working current working conditions, calibrating a to-be-fitted coefficient; according to experimental data of the alkaline electrolysis system under different temperature working conditions, a to-be-fitted coefficient sum is calibrated; and inputting temperature, pressure, alkali liquor circulation flow and current experiment data of the alkaline electrolysis system, and calculating hydrogen in oxygen of the alkaline electrolysis system so as to output system HTO under different operation conditions in real time.

The application relates to the technical field of hydrogen energy transportation and material performance testing, and relates to a test structure for hydrogen permeation testing under a high-pressure gaseous hydrogen environment, a mounting method and application thereof. The test structure comprises a sample body and an insulating sealing assembly, and the sample body is in a double-stage disc structure. The uppermost edge of the first sealing insulating assembly is flush with the upper end surface of the cylindrical platform, and the sample body is matched with the inner side of the first sealing insulating assembly for installation. The second sealing insulating assembly is in an open-upward shape, and the first sealing insulating assembly is matched with the second sealing insulating assembly for installation. The test surface of the sample body of the test structure is kept consistent with the flow field of the gas main stream, and when the test structure is used for testing, the permeation behavior of the hydrogen flow to the material surface can be truly reflected. All clamping and conducting structures are arranged on the outer part of the pipe wall of the test pipeline or the left part of the sample body, so that flow field disturbance is avoided in the main path of the gas flow.

The invention discloses a multi-rotor hydrogen energy unmanned aerial vehicle which comprises an unmanned aerial vehicle body, a gaseous hydrogen storage bottle, a plurality of arm spans and a plurality of propeller pile fusion type structures. The gaseous hydrogen storage bottle is arranged on the unmanned aerial vehicle body, and the plurality of arm spans are uniformly arranged on the side surface of the unmanned aerial vehicle body; the propeller pile fusion type structure is arranged at the end, away from the unmanned aerial vehicle body, of the arm extension, and the propeller pile fusion type structure and the arm extension are arranged in a matched mode. According to the structure, the air-cooled reactor is arranged below the blades of the unmanned aerial vehicle to form a propeller-reactor fused structure, high-speed airflow generated by the propeller blade thruster is directly used for air inlet reaction and cooling of the air-cooled reactor, and the heat dissipation performance of a battery loaded on the unmanned aerial vehicle can be greatly improved on the basis that the structure of the unmanned aerial vehicle is not changed; and the requirements of actual use are well met.

The invention discloses a hydrogen brittleness performance evaluation method for a hydrogen transport pipeline, which comprises the following steps: obtaining the average hydrogen concentration in a sample through a high-pressure hydrogen permeation test of a wafer sample, and obtaining the hydrogen concentration and hydrogen diffusion coefficient of the surface of the sample under a specific electrochemical hydrogen charging condition through an electrochemical hydrogen charging test of the wafer sample; a finite element analysis model of a target sample is established to simulate the change relation of the total amount of hydrogen atoms in the target sample along with time under the electrochemical hydrogen charging condition, and the electrochemical hydrogen charging time equivalent to the high-pressure gaseous hydrogen charging is obtained by comparing the high-pressure gaseous hydrogen charging with the electrochemical hydrogen charging. The target sample is charged with hydrogen through an electrochemical hydrogen charging method, and finally the hydrogen embrittlement performance of the target sample is obtained through a hydrogen embrittlement performance test. According to the method, simple finite element simulation and electrochemical hydrogen charging are combined, high-pressure gaseous hydrogen charging which is complex, low in efficiency and high in danger is replaced, and the detection time of the hydrogen embrittlement performance test of the hydrogen charging pipe is shortened.

A hydrogen distribution system for supplying hydrogen to a hydrogen consumer comprising: a tank storing a liquid hydrogen fuel; a conditioning system configured to provide a gaseous hydrogen stream downstream from the tank towards the hydrogen consumer; a compressor downstream of the conditioning system and configured to receive the gaseous hydrogen stream and provide a high-pressure gaseous hydrogen stream; a heater downstream of the compressor and configured to receive the high-pressure gaseous hydrogen stream and provide a high-temperature, high-pressure gaseous hydrogen stream; and, a valve downstream of the heater and configured to adjust a flow of the high-temperature, high-pressure gaseous hydrogen stream; wherein the hydrogen consumer is downstream of the valve and configured to receive the high-temperature, high-pressure gaseous hydrogen stream and provide energy by consuming hydrogen from the high-temperature, high-pressure gaseous hydrogen stream. Also, an aircraft with such a system.

Method and system for electrochemically compressing hydrogen. In one embodiment, the system includes a membrane electrode assembly (MEA) that includes a polymer electrolyte membrane (PEM), an anode, and a cathode. First and second gas diffusion media are positioned adjacent the cathode and anode, respectively. A humidifying membrane is positioned next to the second gas diffusion medium on a side opposite the anode. A water supply is connected to the humidifying membrane, and a hydrogen gas supply is connected to the second gas diffusion medium. A hydrogen gas collector including a back pressure regulator is connected to the first gas diffusion medium. Separators, positioned on opposite sides of the MEA, are connected to a power source. In use, hydrogen is electrochemically pumped across the MEA and collected in the hydrogen gas collector. The PEM is kept properly humidified by the humidifying membrane, which releases water into the second gas diffusion medium.

The application discloses an experimental device and experimental method for submarine pipeline stress corrosion in a gaseous hydrogen environment, which comprises a high-pressure kettle body arranged on a support, a flange kettle cover arranged on the high-pressure kettle body, NaCl solution arranged in the high-pressure kettle body, a rod-shaped sample arranged in the NaCl solution, a tension sensor arranged on a rack, an upper stretching rod connected with the tension sensor, a servo motor arranged on the rack, an electric cylinder connected with the servo motor, and a lower stretching rod connected with a piston rod of the electric cylinder. The application has the characteristics that hydrogen-induced material damage and seawater corrosion damage are connected together, and reliable data basis is provided for the selection of materials for manufacturing submarine hydrogen pipelines.

This invention relates to the field of chemical equipment technology, and discloses a lithium sulfide preparation device and method, comprising: an insulated shell; a reactor rotatably disposed inside the insulated shell, with a heating chamber formed between the reactor and the insulated shell; a rotating shaft fixed to one end of the reactor, passing through one end of the insulated shell and rotatably engaging with a support assembly; a rotating assembly connected to the rotating shaft to drive its rotation; and a heat source inlet pipe fixed to one end face of the insulated shell to communicate with the interior of the heating chamber. This invention utilizes a dynamic reactor, causing the solid material to continuously tumble and shift during the reaction process, greatly increasing the contact area between the solid phase and the gaseous hydrogen sulfide, enhancing mass transfer efficiency, significantly improving product purity and reaction efficiency, shortening the production cycle, reducing equipment investment and energy consumption, and facilitating large-scale industrial production of high-purity lithium sulfide.

A heating device comprises a thermally-conductive outer tube, and a combustor arranged to combust air and gaseous hydrogen input to the device and introduce resulting combustion products into a first end of the outer tube. The device includes an igniter arranged to ignite the air and gaseous hydrogen. Combustion products produced by the combustor flow from the combustor to an output of the device along a flow path such that they are in contact with the internal surface of the outer tube over at least a portion of the flow path. Apparatus for heating a flow of hydrogen comprises a conduit for conducting the flow of hydrogen from a principal input port to a principal output port, the apparatus further comprising the heating device located at least partially within the conduit between the principal input port and the principal output port.

The present invention relates to a system for mixing hydrogen into fuels, characterized in that it comprises a gas-in-liquid mixing valve which is supplied with gaseous hydrogen via a line originating from a hydrogen storage tank with a compressor controlled by an operating panel, wherein the outlet of the mixing valve is connected to the fuel line which supplies the boiler, engine, burner or the like.

The invention discloses a method for detecting various arsenic forms in an environment through inductively coupled plasma mass spectrometry. The method comprises the following steps: collecting air in the environment, continuously pressurizing the air, and storing the air in a collecting gas tank as a gas sample for later use; introducing the collected gas sample into a reaction kettle filled with a hydrochloric acid solution, mixing, conveying to a first spiral homogeneous conveying device through a first conveying pump, and then conveying to a cyclone spraying chamber; conveying the reaction kettle filled with the sodium borohydride solution to a second spiral homogeneous conveying device through a second conveying pump, and then conveying the sodium borohydride solution to a cyclone spraying chamber; argon is introduced into the cyclone spray chamber, and the cyclone spray chamber is connected with an inductively coupled plasma mass spectrometer and connected with a third delivery pump to discharge wastewater to a wastewater tank; gaseous hydride generated by the cyclone spray chamber and argon are conveyed to an inductively coupled plasma mass spectrometer for quantitative analysis. The technical effect of the invention is that the arsenic content and existence form in the environment can be better and more accurately detected.

The invention provides a hydrogen fluoride production system and method, and belongs to the technical field of hydrogen fluoride production, the hydrogen fluoride production system comprises a reaction unit, a purification unit and a rectification unit which are arranged in sequence, and the rectification unit comprises a rectification tower, a first cooler, a second cooler and a cold crude acid tank; the first cooler is provided with a first cooling medium channel and a first working medium channel, and an inlet of the first working medium channel communicates with an outlet of the purification unit; the second cooler is provided with a second cooling medium channel and a second working medium channel, an inlet of the second working medium channel is communicated with an outlet of the first working medium channel, an outlet of the first working medium channel is communicated with an inlet of the second working medium channel, and an outlet of the first cooling medium channel is communicated with the rectifying tower; according to the invention, the liquid hydrogen fluoride is stored in the cold crude acid tank, so that the liquid hydrogen fluoride cools the gaseous hydrogen fluoride in the first cooler, a coolant does not need to be purchased or supplemented, and the production cost is reduced.

Disclosed is a method of producing hydrogen from the reaction of liquid aluminium or a liquid aluminium alloy with water vapour. The method includes the steps of: (a) providing liquid aluminium or liquid aluminium alloy, wherein said liquid has a surface; (b) reacting said liquid with water vapour in order to generate alumina and hydrogen, wherein if the reaction is carried out at a temperature range of 650 to 900 °C and a pressure range of 0.1 to 1 MPa, at least 50% of the hydrogen dissolves in the liquid, and wherein said reaction takes place at the surface and / or in the liquid; (c) extracting hydrogen in the form of gas from the liquid.

The embodiment of the invention relates to the technical field of refrigeration, in particular to a low-temperature propellant storage system and method. The system is characterized in that a compressor compresses helium, a first part of compressed helium flows into a circulating refrigeration assembly, and a second part of compressed helium flows into a heating assembly; the circulating refrigeration assembly is used for cooling the first part of helium, liquid hydrogen stored in the liquid hydrogen storage tank and liquid oxygen stored in the liquid oxygen storage tank are cooled through the cooled first part of helium, and the cooled first part of helium flows back to the compressor; and the heating assembly is used for heating liquid oxygen flowing out of the liquid oxygen storage tank and liquid hydrogen flowing out of the liquid hydrogen storage tank through the second part of helium to obtain gaseous oxygen and gaseous hydrogen, the gaseous oxygen and the gaseous hydrogen are conveyed to the engine, and the second part of helium flows back to the compressor after heating treatment. According to the technical scheme, high-quality cooling capacity in the storage box can be effectively utilized, and the circulating refrigeration efficiency is improved.

A system (1) for transporting a gaseous fluid, like dihydrogen, comprising a first pipe for transporting said fluid, called first pipe (2), a second pipe for transporting said fluid, called second pipe (3), and a connector (4) arranged to connect an end, called first connecting end (6), of the first pipe (2) to an end, called second connecting end (7), of the second pipe (3), a zone (Z) comprising the first connecting end (6) of the first pipe (2), the second connecting end (7) of the second pipe (3) and the connector (4) being called connecting zone (Z), the system (1) comprising a protective jacket (5) around the connecting zone (Z) against said first and second connecting ends (6, 7) and said connector (4).

The invention relates to a gaseous hydrogen isotope separation device and system and a gaseous hydrogen isotope separation method, and belongs to the technical field of hydrogen isotope separation. The gaseous hydrogen isotope separation device comprises an anode gas diffusion layer, an anode catalyst layer, a proton exchange membrane, a cathode catalyst layer and a cathode gas diffusion layer which are sequentially stacked; the anode gas diffusion layer and the anode catalyst layer are positioned in an anode region of the gaseous hydrogen isotope separation device, and the cathode catalyst layer and the cathode gas diffusion layer are positioned in a cathode region of the gaseous hydrogen isotope separation device; the gas inlet and the first gas outlet are formed in the anode region; the second gas outlet is formed in the cathode region; the gas inlet is used for being communicated with hydrogen isotope mixed gas; the anode region is connected with the anode of a power supply, and the cathode region is connected with the cathode of the power supply. According to the device, the hydrogen isotope mixed gas can be rapidly separated, the separation factor of the gaseous hydrogen isotope is high, and the separation effect is good.

Methods and systems providing a process for cooling and liquefying a purified gaseous hydrogen feed stream to a liquid hydrogen stream that may be stored in a liquid hydrogen storage tank, as well as a system wherein ortho-hydrogen (o-H2) contained in the purified gaseous hydrogen feed stream may be converted to para-hydrogen (p-H2) through serial low-temperature catalytic converters along with cooling process from normal ambient temperature (300K) to the liquefied temperature (about 20K) of the hydrogen.

A H2 defueling system for automating defueling of a hydrogen tank is disclosed. The H2 defueling system comprises: a hydrogen storage tank containing hydrogen; a plurality of electronic valves configured for regulating hydrogen discharge of hydrogen from the hydrogen tank; at least one pressure sensor and at least one temperature sensor; a hydraulic circuit interconnecting the hydrogen tank, the plurality of electronic valves, the at least one pressure sensor and the at least one temperature sensor; and a control unit configured to: receive input from the at least one pressure sensor and the at least one temperature sensor; automatically adjust the flow rate of gaseous hydrogen from the storage tanks based on the input from the sensors to maintain the gaseous hydrogen within pressure limits; modulate operations of the plurality of electronic valves to control hydrogen discharge to control the flow of hydrogen from the hydrogen tank.

A fuel system for a hydrogen fuelled gas turbine engine includes a main hydrogen fuel storage unit, a hydrogen fuel pump configured to be supplied with hydrogen from the hydrogen storage unit, a hydrogen fuel preheater configured to be supplied with high pressure hydrogen from the hydrogen fuel pump, and configured to supply heated gaseous hydrogen to a combustor of the gas turbine engine, and a hydrogen priming tank configured to store compressed gaseous hydrogen and to deliver gaseous hydrogen to at least the hydrogen fuel pump and preheater. The fuel system comprises a high-pressure gaseous hydrogen fuel offtake downstream in hydrogen fuel flow of the fuel pump in fluid communication with the hydrogen priming tank, and configured to fill the hydrogen priming tank with high pressure gaseous hydrogen.

This invention discloses a high-pressure gaseous hydrogen filling system based on liquid hydrogen pressurization, including a liquid hydrogen storage tank connected to the inlet of a liquid hydrogen vaporizer via a liquid hydrogen booster pump; a first outlet of the liquid hydrogen vaporizer connected to the liquid hydrogen storage tank via a gaseous hydrogen outlet bypass, the gaseous hydrogen outlet bypass being equipped with a gaseous hydrogen pressure reducing valve; and a second outlet of the liquid hydrogen vaporizer connected to a gaseous hydrogen container. The invention also discloses a high-pressure gaseous hydrogen filling method based on liquid hydrogen pressurization. By connecting a gaseous hydrogen outlet bypass from the liquid hydrogen vaporizer to the liquid hydrogen storage tank, this invention increases the pressure of the liquid hydrogen stored in the storage tank, thereby increasing the inlet pressure of the liquid hydrogen booster pump, thus increasing the booster pump's pressurization efficiency and improving the efficiency of high-pressure gaseous hydrogen filling.

A hydrogen tank, preferably a tank for storing liquid hydrogen at low pressure in cryogenic condition, includes at least one gaseous hydrogen capture system. The system is provided with absorbent fillers configured to capture the gaseous hydrogen, the absorbent fillers being linked to at least a part of a wall of the tank, and / or to a skin arranged on an outer face of the tank, and / or to an outer jacket intended to implement an auxiliary function. The system has a reduced weight and is able to retain and store gaseous hydrogen which could escape from the tank so as to prevent it from being given off into the environment of the tank. The captured gaseous hydrogen is able to be restored later by the system.