1859.  KIRSHENBAUM, I., AND GROVER, R. K. (Standard Oil Development Co.). Hydrocarbon Synthesis Promoter. United States Patent 2,563,607, Aug. 7, 1951; appl. filed Dec. 1, 1948, Serial No. 62,914; 7 claims (Cl. 260-676). Chem. Abs., vol. 45, 1951, p. 9847.

Increased yields ranging from 6-22% more of normally liquid hydrocarbons boiling within the gasoline and gas-oil range are obtained by feeding to a reactor adapted to a fluid catalyst operation and containing an Fe-type catalyst, a mixture of C₂H₂ and a synthesis feed-gas mixture of H₂ and CO. The composition of the synthesis gas mixture should be in a ratio of 0.5-2 moles H₂ to 1 mole CO. The amount of C₂H₂ in the total synthesis gas feed varies 4-100 moles H₂+CO per mole C₂H₂. The synthesis gas should be treated to remove S compounds and O₂ concentration reduced to 0.01-0.1%. When the linear inlet velocity of C₂H₂ and synthesis gas is 0.3-3.0 ft. per sec. and about 4-80 N ft. ³ is supplied to the reactor per lb. of catalyst, the apparent density of the catalyst is 25-75 lb. per ft. ³. The total pressure in the reactor is 50-700 p. s. i. g. and the temperature range 400°-750° F. Electron photomicrographs are shown illustrating low cuprene formation and no increase in catalyst disintegration.