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1473. ---------------. [HOLROYD, R.] I. G. Farbenindustrie A.-G. Works at Ludwigshafen and Oppau. II-C. Methane-Oxygen Process for Synthesis-Gas Production. CIOS Rept. XXX-103, 1945, pp. 6-9, PB 23,750; Bureau of Mines Inf. Circ. 7,375, 1946, pp. 5-9; TOM Reel 197.
General description of the process, the operation, and the equipment is given for a plant treating 6,000-7,000 m.3 per hr. of coke-oven gas. Synthesis gas may be produced from pure gaseous hydrocarbons, coke-oven gas or purge gas from MeOH synthesis. S content must be low, the presence of even 15 mg. per m.3 of feed necessitates an increase in reaction temperature of about 200°. The first step of the process consists of burning the preheated hydrocarbon (650°) with O2 or O2-enriched air, the amount of O2 being substantially the theoretical requirement for the reaction CH4+1/2 O2=CO+2H2. The second step consists of the conversion of residual CH4 by the CH4-steam reaction and the attainment of the water-gas equilibrium. The composition of the final gas is CO2, 7%; CO, 23.8%, H2, 69%; and CH4, 0.2%. The consumption per m.3 of CH4 fed are O2, 0.487 m.3; steam, 0.107 kg.; cooling water at 15°, 9.6 kg. No cost data are given.