Patents

2932.  --------.  [Hydrogenation of Carbon Monoxide.]  German Patent Appl. R 104,876, filed Mar. 28, 1939 (Cl. IV d-12 o).  PB Report 412, Mar. 15, 1945; Auszüge deut. Patent-Anmeldungen, vol. 6, p. 298.

Hydrogenation of CO is carried out by passing synthesis gas into a suspension of finely divided catalyst in a suitable oil, preferably with mechanical agitation to distribute the gas, and simultaneously introducing a liquid such as H2O, which vaporizes under the reaction conditions to control the temperature.  For example, 1,270 gm. of Co-ThO2-MgO-kieselguhr catalyst containing 400 gm. CO is suspended in 15 l. of oil b. 240º-300° C.  Synthesis gas containing 1 Co : 2 H2 is introduced at a rate of 2.5 l. per gm.  Co per hr., and a pressure of 10 atm. is maintained in the reaction.  The synthesis begins at 190º C., and the temperature is gradually raised to 210º C. as H2O is introduced to maintain this temperature.  The contraction of synthesis gas amounts to 85%, and the yield of liquid and solid hydrocarbons amounts to 172 gm. per m.3.  The liquid product contains 90% boiling up to 300º C and having an olefin content of 20%.