Method and catalyst composition

Abstract

A method for producing a gaseous composition comprising hydrogen (H2), wherein said method comprises contacting a feed gas composition comprising carbon monoxide (CO) and water (H2O) with a catalyst composition comprising a copper species, an iron species, and a hydroxyapatite (HAP). The copper species may be selected from elemental copper, a copper oxide, or a mixture thereof. The iron species may be selected from elemental iron, an iron oxide, or a mixture thereof. The catalyst composition may comprise at least one further metal species, that may be a transition metal species such as a noble metal species. The HAP may be obtained or obtainable by wet chemical precipitation. A method of preparing a catalyst composition is also specified, comprising combining aqueous solutions of an iron salt or a hydrate thereof and a copper salt or a hydrate thereof with an hydroxyapatite to provide a heterogeneous mixture, removing the aqueous solvent to provide a solid, and calcining the solid to provide the catalyst composition. Further defined is a catalyst composition obtained or obtainable according to the process, and a catalyst composition essentially consisting of copper or an oxide thereof, iron or an oxide thereof, and a HAP. [No Figure]