1000.    ---------------.  [Formation of Liquid Hydrocarbons From Acetylene.]  Brennstoff-Chem., vol. 10, 1929, pp. 279-282; Chem. Abs., vol. 24, 1930, p. 483.

        Experimental method consisted in passing C₂H₂ over silica gel or active C at 600°-700°, the following results being obtained:  With pure C₂H₂ at first CH₄ and C were mainly formed, the latter serving as a contact whereby 70% of the C₂H₂ was converted into liquids (heavy oil : light oil = 1:1).  With distilled C₂H₂ made by decomposing CH₄ in coke-oven gas, the total conversion was smaller, but the light-oil yield was as high as with pure C₂H₂.  Distillation with CO₂ favored light oil formation and increased the life of the contact mass; CO₂ could serve for revivifying the catalyst.  With CO₂-C₂H₂ mixtures in an empty tube, 70% of the C₂H₂ was converted into oil; reduced pressure was unfavorable.