EVALUATION OF COMMERCIAL CATALYSTS FOR THE FISCHER-TROPSCH REACTION

The hydrogenation of carbon monoxide was investigated at 20 atm (2.0 MPa) and 250 °C (523 K) in tubular reactors. Four commercial iron catalysts, one commercial cobalt catalyst, and an iron lathe turning catalyst were tested at three hydrogen to carbon monoxide feed ratios. At a relatively constant space velocity the overall rates of reaction gave a good indication of activity. The cobalt catalyst appeared to be the best. Its selectivity favored saturated hydrocarbons. A nitrided ammonia synthesis catalyst attained a similar activity. An optimal feed ratio of 2:1 H2/CO was observed. The highest activities concurred with a 2:1 feed ratio and the production of water. © 1979, American Chemical Society. All rights reserved.