Abstract

Abstract The CO concentration in the effluent from the water-gas shift reactor can be reduced to be less than 15 ppm from about 1 vol through the double bed system composed of CuO-CeO2, which can oxidize CO selectively in the presence of excess H2, and Ni/Y-ZrO2, which is active for CO methanation in the presence of excess CO2, over a wide reaction temperature range.

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