Methods of generating hydrogen are described, wherein a hydride is hydrolysed in a reaction chamber (10) in an exothermic reaction by the addition of liquid water to be vaporized in the reaction chamber (10), and/or the added water is controlled in relation to the hydrogen generated according to a value x defined by equations, which, for a divalent metal, reads: MH 2 + x H 2 O→ (2-x) MO + (x-1 ) M(OH) 2 + 2 H 2, wherein M symbolizing the divalent metal and x is preferred in the interval of 1.2 to 1.3. The equation as well as the values of x depend on the sort of hydride, i.e. whether a 1-, 2-, 3- or 4-valent hydride is applied. Furthermore a hydrogen generator (3) for performing these methods is depicted comprising a reaction chamber (10), optimally in form of a replaceable cartridge and being surrounded by a non-linear thermal insulation, with a water supply inlet (11) and a hydrogen outlet (13), wherein in series with the water supply inlet (11) and/or the hydrogen outlet (13) porous materials (34/35, 41/42) permeable to steam and/or hydrogen but not permeable to hydride and/or liquid water are arranged. The hydrogen generator (3) comprises a water storage vessel (16), also a part of the replaceable cartridge, acting also as condenser for recycled water; and if coupled to a fuel cell (2), the product water of the fuel cell (2) is also supplied. For system balancing, an electric buffer is applied.

Method and generator for hydrogen production

The invention relates to an aluminum alloy/hydroboron hydrolysis reaction-based miniature hydrogen production system and a hydrogen production method thereof, belonging to the field of hydrogen preparation technique. The aluminum alloy/hydroboron hydrolysis reaction-based miniature hydrogen production system comprises a hydrogen production generator and a liquid storage tank, wherein the hydrogen production generator is coated by the liquid storage tank; an outlet at the bottom end of the liquid storage tank is connected with a hydrogen production generator liquid delivery pipe, a liquid delivery control valve, a stainless steel pipe and a reaction region; the top end of the liquid delivery pipe is connected with a hydrogen storage chamber; the hydrogen production generator is divided into a reaction chamber and the hydrogen storage chamber by a separation film; and two symmetrical circular truncated cones are arranged at the bottom of the reaction region. The hydrogen production method of the aluminum alloy/hydroboron hydrolysis reaction-based miniature hydrogen production system is characterized in that the hydroboron solution input velocity of the liquid delivery control valve is regulated to realize the start/stop of the hydrolysis reaction of the hydrogen production system, so as to stabilize the hydrogen pressure of the hydrogen production system. The aluminum alloy/hydroboron hydrolysis reaction-based miniature hydrogen production system and the hydrogen production method have the characteristics of being simple in structure, and safe and reliable, and suitable for supplying hydrogen for portable fuel cells or internal combustion engines.

Aluminum alloy/hydroboron hydrolysis reaction-based miniature hydrogen production system and hydrogen production method

Open-loop thermal management systems and open-loop thermal management processes are disclosed. The process includes providing an open-loop thermal management system, saturating a reactor of the system with gas while a flow control unit prevents flow of the gas from the reactor, and maintaining a gas dissociation pressure range of the gas within the reactor. The system includes the reactor being arranged to receive a heat load. The reactor contains metal hydrides, metal organic framework, or a combination thereof. The reactor includes at least one venting line extending from the reactor. Also, the flow control unit is configured to adjustably control the flow of gas from the reactor to maintain the gas dissociation pressure range.

Open-loop thermal management process and system

The invention provides a collecting apparatus for a reactor, and the reactor, and relates to the technical field of chemical equipment. The collecting apparatus for the reactor is arranged on the bottom sealing head of the reactor, and comprises a collecting cover body, wherein the collecting cover body comprises a top end surface and a side end surface, the top portion of the side end surface isconnected to the edge of the top end surface, the bottom portion of the side end surface is connected to the inner wall of the bottom sealing head, the collecting cover body is provided with a circulation pore channel for circulating a liquid material, the top end surface of the collecting cover body is arc-shaped, and the convex surface of the top end surface is higher than the top portion of theside end surface. The reactor comprises the collecting apparatus for the reactor, wherein the collecting apparatus is arranged on the inner wall of the bottom sealing head of the reactor, such that the catalyst can be effectively isolated, and the fluid above the collecting apparatus has the uniform velocity distribution.

Collecting apparatus for reactor, and reactor

The present invention relates to a fluid release system for a fuel cell, the system comprising: a conduit for communicating water from the fuel cell to one or more outlets; and, a water discharge arrangement arranged to selectively release water from the one or more outlets, wherein the water discharge arrangement is arranged to controllably open the one or more outlets to selectively release water from the one or more outlets.

Aircraft fluid release system

A hydrogen generator working by hydrolysis of the metal borohydride is described comprising a reaction chamber ( 7 ) which in its bottom part has a liquid collecting area ( 30 ) and leads by short and non-complex connecting components to a conduit end ( 38 ) through which the exhaust products ( 31 ) of the reaction are discharged into the environment, generally the atmosphere and thereby saving weight and volume. By using given high pressures and temperatures for the reaction, the danger of crystallization of exhaust products is prevented.

Hydrogen Generator and Method of Operating It

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Hydrogen Generator and Method of Operating It