The present invention relates to a method for hydrogen production and to a method of hydrogen and/or carbon dioxide production from syngas. The method comprises the steps of: (i) providing a gas stream comprising hydrogen and carbon monoxide, (ii) separating at least part of hydrogen from the stream yielding a hydrogen-depleted stream, (iii) subjecting the hydrogen-depleted stream to a water-gas shift reaction, and (iv) separating hydrogen from the stream resulting from step (iii). The method according to the invention improves the conversion of carbon monoxide in the water gas shift reaction and allows to increase the hydrogen production by 10-15% and to increase the overall energy efficiency of the system by 5-7%. The invention further relates to a plant for hydrogen and/or carbon dioxide production suitable for the method of the invention.

An autothermal reforming catalytic structure for generating hydrogen gas from liquid hydrocarbons, steam and an oxygen source. The autothermal reforming catalytic structure includes a support structure and nanosized mixed metal oxide particles dispersed homogenously throughout the support structure.

Disclosed is a method of producing hydrogen (H.sub.2) gas and calcium carbonate from formaldehyde. The method includes combining an aqueous base, formaldehyde, and a transition metal complex having a coordination bond between a transition metal and a leaving group to form a homogeneous aqueous solution having a basic pH, wherein the leaving group dissociates from the transition metal complex in response to light and/or the basic pH of the solution, producing hydrogen (H.sub.2) gas and formate or a salt thereof from the formaldehyde present in the homogeneous aqueous solution, and producing calcium carbonate using the formate or salt thereof as a carbon source.

Provided is a structure for forming carbon nanofiber, including a base material containing an oxygen ion-conductive oxide, and a metal catalyst that is provided on one surface side of the base material.

A reactor includes a reaction-side flow passage through which a reaction fluid being a fluid constituting a reaction object flows; a temperature controller (heat-medium side flow passage) configured to heat or cool the reaction fluid from outside the reaction-side flow passage; and a catalyst configured to promote a reaction of the reaction fluid, the catalyst provided in the reaction-side flow passage so that a contact area with the reaction fluid is larger on a downstream side than on an upstream side in the reaction-side flow passage.

The present invention is directed to modifications of bitumen and heavy oil upgrading and refining processes to synthesize synthetic crude oil and other valuable synthesized hydrocarbon products in an efficient manner along with the production of commercially valuable co-products from by-products formed by the upgrading process.

The invention provides a calcined Fe.sub.x—Al.sub.y—O.sub.z based catalyst for the decomposition of hydrocarbons such as methane to produce hydrogen and carbon. The catalyst comprises iron oxide mixed with aluminum oxide and calcined at temperatures above 1100° C., where Fe.sub.x—Al.sub.y—O.sub.z is a chemical composition with x>0.1, y>0.1, z≥0 and 0<x/y<200. Reaction of the calcined Fe.sub.x—Al.sub.y—O.sub.z catalyst with methane generates a product stream comprising at least 40 vol. % H.sub.2 and carbon. In an embodiment, carbon is separated from the catalyst and the catalyst is reused for continuous methane decomposition to produce H.sub.2.

A synthesis gas production apparatus (reformer) to be used for a synthesis gas production step in a GTL (gas-to-liquid) process is prevented from being contaminated by metal components. A method of suppressing metal contamination of a synthesis gas production apparatus operating for a GTL process that includes a synthesis gas production step of producing synthesis gas by causing natural gas and gas containing steam and/or carbon dioxide to react with each other for reforming in a synthesis gas production apparatus in which, at the time of separating and collecting a carbon dioxide contained in the synthesis gas produced in the synthesis gas production step and recycling the separated and collected carbon dioxide as source gas for the reforming reaction in the synthesis gas production step, a nickel concentration in the recycled carbon dioxide is not higher than 0.05 ppmv.

Problem to be Solved

A catalyst for obtaining hydrogen gas by steam reforming of a hydrocarbon-containing gas in the presence of steam active metals supported on an α-alumina carrier.

The active metals include 0.1 to 0.3 parts by weight of rhodium (Rh) based on the content of the metal, relative to 100 parts by weight of the α-alumina carrier, and 0.01 to 0.3 parts by weight of platinum (Pt) based on the content of the metal, relative to 100 parts by weight of the α-alumina carrier.

The α-alumina carrier is a carrier modified with a promoter including 1 to 10 parts by weight of cerium (Ce) based on the content of the metal, relative to 100 parts by weight of the α-alumina carrier.

A CO shift catalyst according to the present invention reforms carbon monoxide (CO) in gas. The CO shift catalyst has one of molybdenum (Mo) or iron (Fe) as a main component and has an active ingredient having one of nickel (Ni) or ruthenium (Ru) as an accessory component and one or two or more kinds of oxides from among titanium (Ti), zirconium (Zr), and cerium (Ce) for supporting the active ingredient as a support. The temperature at the time of manufacturing and firing the catalyst is equal to or higher than 550° C.