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.