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Return to Abstracts of Patents Return to Abstracts of Patents 500-749 Patent Abstracts637. ------. [FARBWERKE VORM. MEISTER LUCIUS AND BRÜNING.] [Production of Methane.] French Patent 521,054, July 6, 1921; appl. filed July 24, 1920. Chem. Zentralb., 1921, IV, p. 910. Mixture of CO and H2 containing an excess of H2 is passed over heated catalysts in a series of furnaces, and, after each removal of H2O vapor, fresh CO is added in an amount not exceeding 1/5 or the H2 present, and finally, when desirable, the residual H2 is removed in known manner. See abs. 834. |