Patent ID: 8034134

Claim:
A microreformer assembly comprising: a first microchannel comprising a first grooved surface; wherein the first grooved surface comprises a first continuous groove in a spiral configuration defined in a first plane; a second microchannel comprising a second grooved surface; wherein the second grooved surface comprises a second continuous groove in a spiral configuration defined in a second plane; wherein the second microchannel is in fluid communication with the first microchannel, a fuel pathway through the first microchannel and the second microchannel is in series, through a center of the spiral configuration of the first microchannel flowing outwardly to a perimeter of the first microchannel and into a perimeter of the second microchannel toward a center of the spiral configuration of the second microchannel, and said fuel pathway is unidirectional through the first microchannel and the second microchannel; and wherein the first microchannel comprises a first catalyst coupled to an interior side of the first continuous groove.