The Selective Reverse Water Gas Shift Reaction on MoO3/ZnO Catalyst. An Attempt for the Rationalized Production of an Oxogas in the Steam Reforming Process with Cofeeding CO2.:An Attempt for the Rationalized Production of an Oxogas in the Steam Reforming

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If the reverse water gas shift reaction (RWGS: CO2+ H2→CO+H2O) is selectively performed after steam reforming of light hydrocarbons with cofeeding CO2, an equimolecular mixture of H2 and CO, namely oxogas, is rationally produced. We investigated on a catalyst for high selective RWGS under flowing the simulated gas having analogous composition of off gas of steam reformer with cofeeding CO2, which includes large amount of CO. When widely accepted catalyst for RWGS, such as a NiO/ZnO catalyst, was used in our system, the methanation and the carbon deposition took place on it. Using a MoO3/ZnO, however, these side reactions were restrained, and as a result, an attempt to promote the selective RWGS was successfully achieved under flowing the simulated gas. Moreover, the catalyst showed high performance after a month in the catalyst life test.
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