Inventors:
William Retallick - West Chester PA, US
William Whittenberger - Leavittsburg OH, US
International Classification:
C01B003/24
US Classification:
048/198300, 048/198700, 048/127900, 048/128000, 422/189000, 422/198000, 422/211000, 422/111000
Abstract:
A compact steam reformer produces hydrogen to power a fuel cell, such as can be used in a vehicle. The steam reformer includes a first channel, at least partly coated with a steam reforming catalyst, and a second channel, at least partly coated with a combustion catalyst, the channels being in thermal contact with each other. Heat from the combustion is used in the steam reforming reaction. The steam reformer may be provided as a stack of strips defining steam reforming channels which alternate with combustion channels. The reformer may also include a set of modules, connected in series, each module including a stack of strips as described above. The steam reformer preferably also includes a channel wherein a water-gas shift reaction occurs, to convert carbon monoxide, produced by the reformer, into carbon dioxide.