HIGHLY ACTIVE SELF-RECOVERABLE COMPOSITE OXIDE CATALYST FOR REVERSE WATER GAS SHIFT REACTION
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United States of America Patent
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Issued Date -
Oct 13, 2016
app pub date -
Jul 21, 2015
filing date -
Apr 7, 2015
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Abandoned
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Abstract
A disclosure is related to a composite oxide catalyst for a reverse water gas shift (RWGS) reaction, which is a reaction for obtaining water and carbon monoxide by reacting hydrogen with carbon dioxide, and particularly, to a self-recoverable composite oxide catalyst for a reverse water gas shift reaction, which is composed of a compound of Ce1-xMxO2-0.5x (M is one element selected from the group consisting of Y, La, Nd, Sm, and Gd) and Fe2O3 as a composite oxide, thus has an excellent thermal stability at high temperature, and has high carbon dioxide conversion and high carbon monoxide selectivity even under a strong reducing atmosphere, which is a process condition of the reverse water gas shift reaction. Also, the composite oxide exhibits excellent catalytic activity even at the reaction condition of low temperature such as 400° C., and thus enables a large amount of carbon dioxide to be removed at low cost.
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