3320.     TAKENAKA, Y.  Destructive Hydrogenation of Synthetic Petroleum.  I.  Effect of Catalyst.  Jour. Soc. Chem. Ind. (Japan), vol. 46, 1943, pp. 658-662; Chem. Abs., vol. 43, 1949, p. 2415.

        Kogasin oil (synthesized from CO and H₂ under pressure) was fractionated into 3 portions distilling at 100°-200°, 200°-300°, and above 300°, respectively.  Each portion was hydrogenated 5 min. in a rocking autoclave at 480° by using 20% Ni₂O₃, MoO₃, MoS₃, or Mo(PO₄)₂, with or without kieselguhr as catalyst, and H₂ under 35 atm. initial pressure to yield gasoline.  The effect of using various catalysts on the composition of the product was studied.  The reaction yielded 53-67% oil containing 47-65% gasoline, which was composed of 5-9.5, 3.1-11.8, and 14-22%, respectively, unsaturated, aromatic, and naphthenic hydrocarbons, and the remainder was saturated hydrocarbons.  With Ni₂O₃ on kieselguhr, a gasoline fraction containing mostly aromatic and naphthene hydrocarbons was obtained, although the total oil fraction yield was small.  MoS₃ and Mo (PO₄)₂ were second to Ni₂O₃ in producing the same result.  The effect of using a carrier varied according to the catalyst used.  Among the different fractions of Kogasin oil, that which distilled at the highest temperature gave a product containing the largest amount of cyclic hydrocarbons.