Patent ID: 6063349
Filing Date: 2000-05-16
Classification: B01D,C01B,C10K

Abstract:
A process for decreasing the HCN concentration of an HCN containing feed gas for use as a feed in a Fischer-Tropsch process and containing less than 5 ppm sulfur comprising pretreating a catalyst with a hydrogen or a hydrogen containing gas at a temperature of at least about 232.degree. C. wherein said catalyst comprises a metal oxide support selected from the group consisting of titania, hafnia, zirconia and mixtures thereof, the metal oxide being promoted by an oxide selected from the group consisting of zinc, molybdenum, niobium and mixtures thereof, followed by passing the HCN containing feed gas in contact with said catalyst at a temperature from about 140.degree. C. to no higher than 177.degree. C.