Bimetallic catalysts and methods of utilizing the catalysts in hydrogen generation applications are described. Bimetallic catalysts can be free of platinum group metals and less expensive yet highly active in dehydrogenation applications. Systems and methods are described utilizing the bimetallic catalysts as a hydrogen transfer catalyst. Hydrogen storage applications are described utilizing the catalysts with organic hydrogen carrier materials such as saturated cyclic hydrocarbons.

A method for preparing a catalyst comprising (i) preparing a calcined shaped calcium aluminate catalyst support, (ii) treating the calcined shaped calcium aluminate support with water, and then drying the support, (iii) impregnating the dried support with a solution containing one or more metal compounds and drying the impregnated support, (iv) calcining the dried impregnated support, to form metal oxide on the surface of the support and (v) optionally repeating steps (ii), (iii) and (iv) on the metal oxide coated support. The method provides an eggshell catalyst in which the metal oxide is concentrated in an outer layer on the support.

To allow hydrogen to be supplied to a dehydrogenation reaction unit for dehydrogenating an organic hydride by using a highly simple structure so that the activity of the dehydrogenation catalyst of the dehydrogenation reaction unit is prevented from being rapidly reduced. The hydrogen production system (1) comprises a first dehydrogenation reaction unit (3) for producing hydrogen by a dehydrogenation reaction of an organic hydride in presence of a first catalyst, and a second dehydrogenation reaction unit (4) for receiving a product of the first dehydrogenation reaction unit, and producing hydrogen by a dehydrogenation reaction of the organic hydride remaining in the product in presence of a second catalyst, wherein an amount of the first catalyst used in the first dehydrogenation reaction unit is equal to or less than an amount of the second catalyst used in the second dehydrogenation reaction unit, and an amount of hydrogen produced in the first dehydrogenation reaction unit is less than an amount of hydrogen produced in the second dehydrogenation reaction unit.

A method of transporting hydrogen may comprise providing hydrogen gas comprising a first hydrogen gas portion produced by a method with no direct carbon emissions to the atmosphere and a second hydrogen gas portion produced by a method with direct carbon emissions to the atmosphere; at a first hydrocarbon processing facility, hydrogenating a hydrocarbon feed in the presence of the hydrogen gas to form a hydrogenated effluent; transporting a portion of the hydrogenated effluent from the first hydrocarbon processing facility to a second hydrocarbon processing facility; and at the second hydrocarbon processing facility, dehydrogenating the portion of the hydrogenated effluent to form a hydrogen gas product. On average, a mass flow rate of the first hydrogen gas portion may be at least 90% of a mass flow rate of the hydrogen gas product. The first hydrocarbon processing facility and the second hydrocarbon processing facility may be separated by a distance of at least 100 km.

Disclosed are catalyst for extracting high purity hydrogen from organic hydrogen carrier and catalyst composite of preparing same. In detail, a catalyst composite comprising: a support comprising a metal oxide doped with phosphorus(P); and a catalyst comprising platinum group nanoparticle and sulfur(S) and supported on the support, wherein the platinum group nanoparticle may comprise a platinum group element, and the sulfur(S) may be doped on a part or all of a surface of the platinum group nanoparticle. The present disclosure enables easily and quickly support metal nanoparticles on powder and bead-structured supports using wet-impregnation.

A process for hydrogen production, the process comprising the steps of mixing hot water and hot oil to produce a mixed stream; increasing a temperature of the mixed stream to produce a reactor feed; upgrading the reactor feed in the non-catalytic reactor to produce a non-catalytic effluent, wherein a temperature in non-catalytic reactor is between 375 C. and 500 C., wherein the non-catalytic reactor is in the absence of catalyst; upgrading the catalytic feed in the catalytic reactor to produce a reactor effluent, wherein a temperature in catalytic reactor is between 550 C. and 700 C., wherein the catalyst is selected from the group consisting of transition metal oxides, lanthanide oxides, and combinations of the same, separating the reactor effluent in the high pressure separator to produce a gases stream; and separating the gases stream in the gases separator to produce a gas product and a light hydrocarbon stream.

The present disclosure relates to a multistage catalytic reaction system for simultaneous conversion of hydrocarbons having various carbon numbers. Particularly, the present disclosure relates to a catalytic reaction system for producing hydrogen or syngas, which is a mixture of hydrogen with carbon monoxide, by mixing C.sub.1-C.sub.6 hydrocarbons having various carbon numbers, including paraffins (C.sub.nH.sub.2n+2), naphthenes (C.sub.nH.sub.2n), olefins (C.sub.nH.sub.2n), diolefins (C.sub.nH.sub.2n2), and acetylenes (C.sub.nH.sub.2n2) with carbon dioxide at a predetermined ratio, and carrying out reaction thereof. In the multistage reaction system, each reaction zone is maintained under a different reaction condition. Therefore, when using the multistage reaction system, hydrocarbon reactants of various compositions emitted from the actual industry can be treated simultaneously through a one-step process, thereby providing hydrogen or syngas of high value at high yield, while saving processing costs significantly.