Patent ID: 7326394

Claim:
A method of combusting a carbon-containing compound, comprising: providing a gas mixture comprising CO or a hydrocarbon and an oxidant; and passing the gas mixture through a reaction chamber at a GHSV of at least 100,000 h −1 and a temperature of 400 to 1100° C.; wherein the reaction chamber has an internal dimension of 1 cm or less; wherein a combustion catalyst is disposed in the reaction chamber; and wherein at least 20% of the CO or the hydrocarbon in the gas mixture is converted to CO 2 ; and wherein the combustion catalyst comprises a metal substrate; a chromium-containing oxide layer in direct contact with the metal substrate; an active catalyst on the chromium-containing oxide layer; wherein the combination of the metal substrate, the active catalyst and the chromium-containing oxide layer define a catalyst, and wherein the catalyst has a low surface area of no more than 0.5 m 2 /g and no more than 1 m 2 /inch 2 .