PRODUCTION OF HYDROGEN BY A WATER GAS SHIFT REACTION ON SOL-GEL BIMETALLIC Co-CONTAINING CATALYSTS

Abstract

Modern oil refining requires an increasing amount of hydrogen to carry out hydrogenation processes and hydrotreatment of increasingly heavy oil and obtain high-quality products.Water gas shift reaction (WGSR) being the interaction of steam with carbon monoxide is one of the stages of industrial hydrogen production. Despite the sufficient development of the process, the search for more efficient catalysts for this process does not stop.In this work, the bimetallic cobalt-containing alumina supported catalysts modified with small amount of noble metals and prepared by the solgel method were synthesized and tested in WGSR. The total metal content was 5 mass %, a ratio of Co:M=98:2, where M=Rh or Pd. The effect of process temperature and the nature of additives on behavior of synthesized catalysts has been studied. It has been shown that the sol-gel 5% Co-M/ Al2 O3 catalysts have high activity, thus at t=390o C the extent of carbon oxide conversion reaches 96.5-97.5% depending on the nature of the second metal. The main products of the reaction are hydrogen and carbon dioxide. Both catalysts can be considered as high-temperature catalysts for WGSR.