Journal or Book Title
Industrial and Engineering Chemistry Research
A combined catalyst and sorbent was developed for reacting CO with steam to produce H2 in a single reaction stage at 600 °C by employing the water gas shift (WGS) reaction. The combined material was in the form of spherical pellets where each pellet consisted of a CaO core for absorbing byproduct CO2 surrounded by a porous shell of Al2O 3 which supported a Ni catalyst. The best results were achieved by incorporating 5 wt % limestone in the shell material to suppress coking. By employing the best core-in-shell pellets and supplying a 3:1 mol ratio of steam to CO at 600 °C, more than 97% of the CO was converted to H2 by the WGS reaction and less than 1% was converted to CH4 by a side reaction. Also, none of the CO was converted to coke.
American Chemical Society
Kong, Meng; Albrecht, Karl O.; Shanks, Brent H.; and Wheelock, Thomas D., "Development of a combined catalyst and sorbent for the water gas shift reaction" (2014). Chemical and Biological Engineering Publications. 235.