2183.     ---------------.  [MARTIN, F.]  [Industrial Synthesis of Gasoline and Oil From Water Gas.]  Cong. mondial pétrole, 2me Cong., Paris, Sec. 2, Phys. Chim. Raffinage, 1937, pp. 299-307; chem. Abs., vol. 33, 1939, p. 359.

        New and efficient processes have been worked out in the production of petroleum-like hydrocarbons from a mixture of CO and H₂; they solve the problems of (1) prolongation of the life of the contact mass, (2) inexpensive construction of the reaction chamber, (3) regeneration of rare metals and metal oxides from used contact masses and (4) transformation of primary synthetic product into marketable gasoline.  Synthetic gas is obtained by the use of coke or lignite briquets.  After passing the 1^st contact mass, the primary product contains 92% liquid products, of which 22% is gas oil, 10% solid paraffins, and 60% liquids boiling up to 200°; the proportion of olefins in the lower-boiling liquids ranges from 30-55%; the gaseous products are rich in propylene and butylene.  The liquid products are converted into marketable gasoline to the extent of 80%, and the gas oil, which has a cetene no. above 100, can be recovered separately and used to improve low-grade diesel oils from other sources.  High-grade lubricants also may be produced.  With the contact masses now in use no material change in the boiling curve of the primary product is possible.  By increasing the CO content of the entering gas, it is possible to increase the olefin content without materially changing the ratios of the various fractions, which makes it possible to obtain by polymerization a larger proportion of hydrocarbons of high molecular weight.