2214. MERCIER, J. Hydrocarbon Synthesis and Hydrogenation. United States Patent 1,888,998, Nov. 29, 1932. Chem. Abs., vol. 27, 1933, p. 1358.

Initial mixture including heavy hydrocarbons together with CO and H₂ is heated to about 500° in the presence of a hydrogenating catalyst, and the entire heated mixture is subjected to a simultaneous expansion and cooling down to 180°-300° in a sudden manner and then immediately subjected to catalytic hydrogenation at temperatures of 180°-300°. Describes an arrangement of apparatus.