2019. LAYNG, E. T. (Hydrocarbon Research, Inc.). Hydrocarbon Synthesis. United States Patent 2,629,729, Feb. 24, 1953. Chem. Abs., vol. 47, 1953, p. 5675.

Fluid reactor is charged with Fe catalyst containing 1% K₂O and 2% Al₂O₃ as promoters. All the catalyst powder passes a 200-mesh screen and 85% passes a 325-mesh screen. The feed gas is 30.6% CO and 64.3% H_2, and the remainder is CO₂, CH₄, and N₂. The reactor is at 650° F, and 250 p. s. i. The feed gas is passed upward through the catalyst at a linear gas velocity of 1.2 ft. per sec. The catalyst level is adjusted so that effluent gases contain 2.3 mole % CO. Catalyst conditioning of 2 days was required for equilibrium: the catalyst fluid density was then 40-45 lb. per cu. ft. In 25 sec. contact time the gaseous products are withdrawn from the catalyst upper surface, separated in a cyclone separator, condensed, and separated at 70° F. and 250 p. s. i. g. to yield a liquid-hydrocarbon layer corresponding to 65% of CO consumed: 60% of this layer comprises products boiling in the motor-gasoline range.