3677. WHEELER, R. V., AND WOOD, W. L. Pyrolysis of Methane. Fuel, vol. 7, 1928, pp. 535-539; Chem. Abs., vol. 23, 1929, p. 3212.
Study of the thermal decomposition of CH4 has been made. The results obtained agree, in general, with those of Fischer (abs. 954). C6H6 is formed at 875°-1,100°, the optimum temperature (for the apparatus used) being about 1,050° with a yield of 0.2 gal. per 1,000 cu. ft. Quartz, porcelain, and Cu reaction tubes were all without catalytic effect on the decomposition. With an Fe tube only C and H2 are formed. Dilution of the CH4 with N2 has little effect on the yield of aromatic hydrocarbons obtained at 1,000°, but dilution with H2 rapidly decreases the yields. The apparatus is described and illustrated.