2169. MAYER, I., AND OGORZALY, H. J. (Standard Oil Development Co.). Production of Liquid and Gaseous Fuels by Synthesis From Coal. United States Patent 2,543,795, Mar. 6, 1951; appl. filed Oct. 1, 1949, Serial No. 119,142; 7 claims (Cl. 48-202). Chem. Abs., vol. 45, 1951, p. 4912.

In a continuous process for producing a fuel gas of high-heating value, due to the presence of increased quantities of CH₄, a subdivided carbonaceous material and a subdivided catalyst are charged into an initial zone where the carbonaceous solid and catalyst form a turbulent, well-mixed fluidized mass, which is then contacted with CO and H₂ under carbonization and CH₄-synthesis conditions for a sufficient time to cause substantial conversion to CH₄. Then those carbonaceous solids, which have been carbonized, and the catalyst are withdrawn from the synthesis zone and subjected to a separation process. The temperature of the separated catalyst is next adjusted to help maintain the proper temperature in the synthesis zone, to which it is returned while the carbonized carbonaceous material is treated so as to obtain a mixture of CO and H₂ synthesis gas, which is then also charged into the synthesis zone from which the fuel gas is finally recovered.