440. ------. [CORNER E. S., AND LYNCH, C. S.] (Standard Oil Development Co.). Production of Industrial Gases Containing Carbon Monoxide and Hydrogen. United States Patent 2,607,669, Aug. 19, 1952: original appl. filed Aug. 12, 1947, divided and this

Patent Abstracts

440. ------. [CORNER E. S., AND LYNCH, C. S.] (Standard Oil Development Co.). Production of Industrial Gases Containing Carbon Monoxide and Hydrogen. United States Patent 2,607,669, Aug. 19, 1952: original appl. filed Aug. 12, 1947, divided and this appl. Feb. 4, 1948, Serial No. 6,227: 11 claims (Cl. 48-196).

Synthesis gas is produced by contacting a gaseous hydrocarbon at about 1,600º F. with an O carrier comprising an intimate mixture of Fe₂O₃ and MnO₂, the latter being present 10-70 wt. %. MgO and Cr₂O₃ may be included. Example: Operation with Fe₂O₃ alone gave a CH₄ conversion of 56% with selectivity to CO of 22%. 10% of MnO₂ increased the conversion to 70% and the selectivity to 70%. Maximum conversion was obtained with a 50-50 mixture of Fe₂O₃ decreased. <50% the selectivity tended to rise, but conversion fell off rapidly. MnO₂ alone gave a conversion of only 22%. Operation is preferably performed at 1,600º-2,000º, 600 p. s. i., feed rates higher the higher the operating temperature and pressure, residence time of the O carrier in the hydrocarbon oxidation zone 10-15 minutes.