Disclosed is a cartridge for storing pressurized gas, including a main body with an internal volume for storing a gaseous mixture NO/N.sub.2, and a distribution valve for controlling the output of the gas. The internal volume of the main body is less than 1000 ml. The concentration of NO in the gaseous mixture NO/N.sub.2 is between 15000 and 25000 ppmv. The gas pressure in the internal volume is below 15 bar, measured at 23° C. Installation for delivering gas to a patient, including such a gas cartridge, a NO supply device fed by the gas cartridge, and a medical ventilator feeding a patient circuit which has an inhalation branch fed by the NO supply device. Use for treating patients suffering from pulmonary hypertension or hypoxia.

A method and system for controlling the nitrogen concentration in an LNG product and fuel from flash gas within preferred ranges. A cooled LNG stream is separated into a nitrogen-enriched vapor stream, a fuel stream, and an LNG product stream using a plurality of phase separating devices, such as flash drum or rectifying column. A portion of the vapor stream is recycled to the rectifying column as reflux. A portion of a stream having a higher concentration of nitrogen is combined with the fuel stream to maintain the fuel stream within a desired nitrogen concentration range.

The invention relates to an integrated hydrogen fueling station for fueling of vehicle tanks with hydrogen characterized in that it comprises an electrochemical compressing unit in which secondary hydrogen originating from leakage, boiling-off or venting of hydrogen-containing gas in one or more of the fueling station's operative units is compressed wherein the secondary hydrogen contains hydrogen and further gaseous components, and to a method for operating such a hydrogen fueling station.

A liquid hydrogen reservoir and a method for operating a liquid hydrogen reservoir. The liquid hydrogen reservoir includes a cryostatic container operable to hold liquid hydrogen; a discharge line operable to discharge gaseous hydrogen in the cryostatic container; a boil-off management system (BMS), a return line, and a boil-off valve (BOV). The BMS that includes a mixing chamber operable to mix the gaseous hydrogen with ambient air, a catalyst arranged downstream of the mixing chamber and operable for a catalytic conversion of the gaseous hydrogen with the ambient air, and an exhaust gas line arranged downstream of the catalyst and operable to discharge the gas stream to the environment. The return line is operable to connect the exhaust gas line to the mixing chamber to facilitate a return flow of at least a partial stream of the exhaust gas line into the mixing chamber. The BOV is arranged in the discharge line and operable to selectively open and close a flow connection of the discharge line to the BMS.

The invention relates to a gas supply device including a supporting frame (2) housing a plurality of cylinders (3) connected such as to form a circuit (4, 5) including a first coupling end (6) connected to the cylinders (3) via a first isolation valve (7) and a second separate coupling end (8) that is connected to the cylinders (3) via a second isolation valve (9) and a pressure release valve (10), the supporting frame (2) including an interface panel (20) comprising at least one opening enabling a user to access the circuit (4, 5), characterized in that the device comprises a member (16) for manually controlling the second isolation valve (9) including a pivoting lever, and in that the interface panel (20) includes a slot (21) for accessing the lever (16), said lever (16) being movable between a first position in which the lever (16) is in the plane of the interface panel (20) or set back from the latter within the volume of the frame (2) and a second position in which at least one portion of the lever (16) projects relative to the interface panel (20) through the slot (21).

Systems and methods for dockside regasification of liquefied natural gas (LNG) are described herein. The methods include providing LNG from a LNG carrier to a regasification vessel. The LNG may be regasified on the regasification vessel. The regasified natural gas may be discharged with a high pressure arm to a dock and delivered onshore. The regasification vessel may be moored to the dock. The LNG carrier may be moored to the regasification vessel or the dock.

A fire engine including a vehicle frame, a liquid nitrogen storage tank, a liquid nitrogen conveying pipeline, a gasification device, a plurality of electric valves, a water pipe adapter, a liquid nitrogen spray gun, and a mixed spray gun. The liquid nitrogen conveying pipeline includes a first pipeline and a second pipeline. The first pipeline connects the lower part of the liquid nitrogen storage tank, the gasification device, and the upper part of the liquid nitrogen storage tank sequentially in that order. The second pipeline connects the liquid nitrogen storage tank, an input end of the liquid nitrogen spray gun, and a first input end of the mixed spray gun. The mixed spray gun includes a first input end, a second input end, a liquid nitrogen nozzle, and a spray pipe. The spray pipe includes a contraction section, an expansion section, and an acceleration section.

Configuring a high-vapor-pressure (HVP) material comprising a plurality of component hydrocarbons; flashing the HVP material from an HVP liquid to an HVP vapor as the HVP liquid is introduced into an evacuated portion of a containment vessel; introducing a relief mass from a process relief event occurring outside the containment vessel to mix with the HVP material in the containment vessel; and distributing energy from the process relief mass within the containment vessel using a plurality of energy absorption processes in the component hydrocarbons as the plurality of component hydrocarbons respectively condense to liquid phases over time. The evacuated portion of the containment vessel may be a headspace vacuum above a low-vapor-pressure (LVP) liquid within the containment vessel. The HVP material may comprise C4-C10 hydrocarbons. The HVP material may comprise a plurality of component hydrocarbons having diverse boiling points and vapor pressures, that absorb and distribute the relief mass energy.

A cryogenic storage vessel having an inner vessel defining a cryogen space; an outer vessel spaced apart from and surrounding the inner vessel, defining a thermally insulating space between the inner vessel and the outer vessel; and a receptacle defining passages for delivery of liquefied gas from the cryogen space to outside the cryogenic storage vessel. The receptacle has an elongated outer sleeve defining an interior space in fluid communication with the thermally insulating space that is sealed from the cryogen space; an elongated inner sleeve extending into the interior space defined by the elongated outer sleeve defining an inner receptacle space that is fluidly isolated from the thermally insulating space; and a collar extending around an inner surface of the elongated inner sleeve which seals against a cooperating surface of a pump assembly when a pump assembly is installed in the cryogenic storage vessel thereby dividing a warm end from a cold end of the receptacle. A motor for driving the pump can be installed within the cryogenic storage vessel.

The invention relates to power engineering equipment, in particular, to an self-contained portable device for filling cylinders with high-pressure hydrogen at preliminary high-pressure hydrogen production from hydrolysis. The technical result of the invention is providing with high-purity high-pressure hydrogen charging in any place, where there is an access to water, with complete elimination of power costs, reducing reactor weight, high performance reliability and easy servicing of the device. The self-contained portable device for charging cylinders with high-pressure hydrogen comprising a reaction chamber containing a solid reagent cartridge and reaction liquid pipe configured to supply liquid reagent to the lower part of the reaction chamber, a refrigerant dryer comprising installed in series a hydrogen cooler, filter-separator and hydrogen dryer, liquid reagent pipeline connected with the reaction liquid pipe, high-pressure hand pump connected with the liquid reagent pipeline to the reaction chamber and configured to feed liquid reagent in portions to the reaction chamber, gaseous hydrogen pipeline connecting the reaction chamber and refrigerant dryer, treated gaseous hydrogen pipeline configured to supply high-pressure hydrogen from the refrigerant dryer to a cylinder, wherein the gaseous hydrogen pipeline, treated gaseous hydrogen pipeline and liquid reagent pipeline are equipped with quick-release couplings, and the reaction chamber is placed in the reaction chamber cooling tank.