Patent ID: 7520907

Claim:
An integrated fuel processing unit comprising; a housing; a steam/fuel feed mix supply in said housing; a combustor feed supply in said housing; and a steam reformer/combustor in said housing, the steam reformer/combustor comprising: first and second axially extending, concentric annular passages in heat transfer relation to each other, the first passage connected to the feed mix supply to receive the feed mix into the first passage at one end of the first passage, the second passage connected to the combustor feed supply to receive the combustor feed at a location adjacent an opposite end of the first passage; a first convoluted fin located in the first passage to direct the feed mix therethrough, the first convoluted fin coated with a catalyst that induces a desired reaction in said feed mix; a second convoluted fin located in the second passage to direct the combustor feed therethrough, the second convoluted fin coated with a catalyst that induces a desired reaction in said combustor feed; further comprising a cylindrical water-gas shift reactor extending through said housing at a location radially inward from said first and second flow passages; and further comprising a combustor preheater comprising: a housing defining third and fourth axially extending, concentric annular passages in heat transfer relation to each other, the third passage aligned with and directly connected to said second passage to direct the combustor feed into the second passage, the fourth passage connected to said water-gas shift reactor to receive a reformate flow from the water-gas shift reactor.