Dihydrogen generator (5) comprising a chamber (10) and a catalytic system (15), the catalytic system being rigidly fastened to the chamber in a removable manner and comprising a catalysis housing (25) containing a catalyst (205) for the reaction for generating dihydrogen from a reagent (405) chosen from a hydride, a liquid organic hydrogen carrier and mixtures thereof, the chamber defining a chamber internal space (45), the catalysis housing being positioned at least partly in the chamber internal space.

Dihydrogen generator (5) comprising a chamber (10) and a catalytic system (15), the catalytic system being rigidly fastened to the chamber in a removable manner and comprising a catalysis housing (25) containing a catalyst (205) for the reaction for generating dihydrogen from a reagent (405) chosen from a hydride, a liquid organic hydrogen carrier and mixtures thereof, the chamber defining a chamber internal space (45), the catalysis housing being positioned at least partly in the chamber internal space.

A method for producing a purified, stable, dioxytetrahydride compressible gas from water. The gas is suitable for a variety of uses and may also be infused into water which itself is useful for a variety of purposes.

A system for generating hydrogen includes a vessel having a first chamber that is separated from a second chamber by a barrier. A trigger assembly integrated with the barrier allows a liquid to be combined with a reactant and a catalyst in the second chamber to form a chemical reaction to generate hydrogen gas. A pressure relief valve located on the vessel opens to allow the hydrogen gas to exit when a predetermined pressure is reached.

In an apparatus producing hydrogen gas by a decomposition reaction of water using a photocatalyst, the water is warmed with waste heat of a light source for improving the production efficiency of hydrogen gas. The hydrogen gas producing apparatus 1 comprises a container portion receiving water; a photocatalyst body, dispersed or placed in the water, having a photocatalyst material to generate excited electrons and electron holes by irradiation of light, causing the decomposition reaction of water which decomposes water into hydrogen and oxygen to generate hydrogen gas; a light source emitting the light to be irradiated to the photocatalyst body; and a housing carrying the light source; wherein the housing is placed in the water, which is warmed by the waste heat of the light source discharged from the housing surface which is coated with a photocatalyst material.

Steam-hydrocarbon reforming reactor with a reformer tube containing ceramic-supported catalyst pellets and metal foam particles. The ceramic-supported catalyst pellets have a porous support comprising one or more of alumina, calcium aluminate, and magnesium aluminate. The metal foam particles comprise Fe and/or Ni. The ceramic-supported catalyst pellets and metal foam particles may be layered or interspersed.

Steam-hydrocarbon reforming reactor with a reformer tube containing ceramic-supported catalyst pellets and metal foam particles. The ceramic-supported catalyst pellets have a porous support comprising one or more of alumina, calcium aluminate, and magnesium aluminate. The metal foam particles comprise Fe and/or Ni. The ceramic-supported catalyst pellets and metal foam particles may be layered or interspersed.

Systems, devices, and methods combine thermally stable reactant materials and aqueous solutions to generate hydrogen and a non-toxic liquid by-product. The reactant materials can sodium silicide or sodium silica gel. The hydrogen generation devices are used in fuels cells and other industrial applications. One system combines cooling, pumping, water storage, and other devices to sense and control reactions between reactant materials and aqueous solutions to generate hydrogen. Springs and other pressurization mechanisms pressurize and deliver an aqueous solution to the reaction. A check valve and other pressure regulation mechanisms regulate the pressure of the aqueous solution delivered to the reactant fuel material in the reactor based upon characteristics of the pressurization mechanisms and can regulate the pressure of the delivered aqueous solution as a steady decay associated with the pressurization force. The pressure regulation mechanism can also prevent hydrogen gas from deflecting the pressure regulation mechanism.

Systems, devices, and methods combine thermally stable reactant materials and aqueous solutions to generate hydrogen and a non-toxic liquid by-product. The reactant materials can sodium silicide or sodium silica gel. The hydrogen generation devices are used in fuels cells and other industrial applications. One system combines cooling, pumping, water storage, and other devices to sense and control reactions between reactant materials and aqueous solutions to generate hydrogen. Springs and other pressurization mechanisms pressurize and deliver an aqueous solution to the reaction. A check valve and other pressure regulation mechanisms regulate the pressure of the aqueous solution delivered to the reactant fuel material in the reactor based upon characteristics of the pressurization mechanisms and can regulate the pressure of the delivered aqueous solution as a steady decay associated with the pressurization force. The pressure regulation mechanism can also prevent hydrogen gas from deflecting the pressure regulation mechanism.

Acid gas compounds are removed from a process gas such as, for example, syngas or natural gas, by flowing a feed gas into a desulfurization unit to remove a substantial fraction of sulfur compounds from the feed gas and flowing the resulting desulfurized gas into a CO.sub.2 removal unit to remove a substantial fraction of CO.sub.2 from the desulfurized gas.