Cobaltosic Oxide Catalysts for Catalytically Removing Hydrogen from Tail Chlorine

Abstract

Cobaltosic oxide has been used as catalysts in dehydrogenation for tail chlorine due to the advantages of low price and security. The Co 3 O 4 /ZSM-5 was synthesized by the volume impregnation method. The catalytic dehydrogenation performance of Co 3 O 4 /ZSM-5 was investigated, the catalytic reaction of hydrogen with oxygen and chlorine was carried out in a fixed-bed, and the mixed reactant gases were prepared according to the composition and content of tail chlorine in industry: Cl 2 (65%-80%), N 2 (6-16%), O 2 (8%-10%) and H 2 (1.5%-4%). The catalytic efficiency and stability of Co 3 O 4 / ZSM-5 in dehydrogenation for tail chlorine were better than that of Co 3 O 4. After the calcination on 300 °C, the Co 3 O 4 / ZSM-5 with 1 %wt. Co 3 O 4 shown excellent catalytic performance at 50 °C, and the average conversion of hydrogen can reach up to 99.59%.