Patent ID: 7763086
Filing Date: 2010-07-27
Classification: C01B,Y02P

Abstract:
1. A hydrogen generation system comprising: a fuel reforming reactor generating a hydrogen-rich reformate gas at a temperature greater than 150 C; a pressure swing adsorption (PSA) hydrogen purification unit that separates the reformate gas into a relatively pure hydrogen stream and an off-gas stream; a catalytic reactor down stream of the PSA unit that converts carbon monoxide (CO) and hydrogen (H a first secondary purification stage downstream of the PSA unit and the catalytic reactor, the first secondary purification stage having a first water adsorbent material bed that adsorbs the H a second secondary purification stage downstream of the PSA unit and the catalytic reactor connected in parallel to the first secondary purification stage, the second secondary purification stage having a second water adsorbent material bed that adsorbs the H wherein the relatively pure hydrogen stream is selectably connected to one of the first secondary purification stage and the second secondary purification stage.