Reverse water-gas shift catalyst prepared from crab shells

The invention discloses a reverse water-gas shift catalyst prepared from crab shells. The reverse water-gas shift catalyst is a Ni/crab shell catalyst which is obtained by loading Ni to a crab shell carrier by adopting a deposition-precipitation method, wherein the mass percent of Ni in the Ni/crab shell catalyst is 5-20%. The reverse water-gas shift catalyst disclosed by the invention can effectively catalyze an RWGS (reverse water-gas shift) reaction, inhibit a methanation reaction and improve selectivity of catalysts, and meanwhile, the reverse water-gas shift catalyst has good stability. 本发明公开了种利用蟹壳制备的逆水煤气变换催化剂，所述逆水煤气变换催化剂为Ni/蟹壳催化剂，所述Ni/蟹壳催化剂为采用沉积-沉淀法将Ni负载在蟹壳载体上而得，Ni/蟹壳催化剂中Ni的质量百分比为5-20％。本发明能够有效催化RWGS反应，抑制甲烷化反应，提高催化剂的选择性，同时催化剂具有良好的稳定性。