A hydrogen generator comprises a reformer configured to generate a reformed gas containing at least hydrogen and carbon monoxide; a gas supply portion configured to supply an oxidization gas containing oxygen; a purifier configured to reduce a concentratio...

A catalyst for preferentially reducing carbon monoxide in a hydrogen stream. The catalyst is formed from a chemical composition including a hexaaluminate, a metal hydroxide and a precious metal. The composition may be disposed on a support or may be extrud...

Process for improving the cold start behavior of selective carbon monoxide oxidation catalysts in gas purification stages of a gas generating system comprises feeding a medium stream over the oxidation catalyst after switching off the gas generating system...