1135. GALLO, G. AND CORRELLI, R. [Synthetic Production of Liquid Fuels.] Atti Cong. Nazl. Chim. Pura Applicata, 1923, p. 257; Chem. Abs., vol. 18, 1924, p. 2594. Preliminary work is described on the cracking of vegetable oils by a method similar to that used by Mailhe for obtaining petroleum products from such oils. The vegetable oil is decomposed by superheated steam in the presence of an alkaline earth, the products are led in the vapor state over pumice stone containing FeO at 550°-560° and the new products passed over pumice stone containing Ni at 200°-250° where hydrogenation is carried out. The FeO remains unaltered on account of the oxidizing action of the H2O and simultaneous reducing action of the oil vapor. A gaseous product of the following percentage composition was obtained: CO2 4.2, heavy hydrocarbons 33.5, CO 3.7, saturated hydrocarbons 43.4, H2 15.2. A yellowish brown, slightly fluorescent, mobile liquid was also recovered with a yield of 60.65% of the original oil, an aromatic odor, 0.5% acidity, calculated as oleic acid, saponifiable 0.46%, giving in large part nitro derivatives with HNO3-H2SO4 mixture and yielding in percentage on fractional distillation: 45°-200°, 24.5; 200°-300°, 41; 300°-350°, 29.5; tar residue 5%. GALLOWAY, A. E. See abs. 373, 374, 375. |