A catalyst and sorbent is disclosed which comprises pellets with an absorbent core and a protective shell with a catalyst in the shell. Such material is especially well suited for steam reforming of hydrocarbons to produce hydrogen since a reforming catalyst can be incorporated in the shell and a sorbent for the by-product carbon dioxide can be used for the core. It is also well suited for producing hydrogen from carbon monoxide by means of the water gas shift reaction. The shell can be made sufficiently strong and durable for moving bed applications as well as fixed bed applications.
US 7,176,159 B1
Iowa State University Research Foundation, Inc.
Wheelock, Thomas D. and Shanks, Brent H., "Catalyst and sorbent material for the production of hydrogen" (2007). Iowa State University Patents. 310.