3634. STEINSCHLAEGER, M., AND OVERSEAS FINANCE & COMMERCE, LTD. Synthetic Production of Hydrocarbon Oils. British Patent 575,378, Feb. 15, 1946; appl. filed July 5, 1939. British Abs., I, B, 1946, p. 197.

Motor fuel and lubricating oil, both of high olefin content, are synthesized by passing blue water gas over a catalyst of Co activated with ThO₂ 160°-250°, separating the olefinic oils produced, washing the CO₂ from the residual gas (0.4 vol.), and mixing the washed gas with a gas containing H₂ and CH₄produced by heating in a current of H₂ the waxy deposit formed on the Fischer-Tropsch catalyst and a H₂-rich gas mixture produced by treating coal gas with steam on a Ni-Mo sulfide catalyst or by treating blue water gas with steam on a Co-ThO₂ catalyst to yield a synthesis gas containing CO, 29%: H₂, 58%:CH₄, 5%: and CO₂+N₂, 8%. The synthesis gas when passed over a Co, a Ni or an Fe catalyst, which may be activated by ThO₂ or an Fe catalyst, which may be activated by ThO₂ or Cu, 160°-250° yields olefinic liquid products 140 gm. per m.³. Products of still higher olefin content are obtained by using a synthesis gas containing CO 34%+H₂ 51% prepared by suitable adjustment of the constituents mentioned.