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%.