229. ------. [BRAUNKOHLE-BENZIN, A. G.] [Synthesis Gas.] German Patent Appl. B 177,992, filed Apr. 6, 1937 (Cl. IV c-12 6). PB Rept. 412, May 15, 1945.

Patent Abstracts

229. ------. [BRAUNKOHLE-BENZIN, A. G.] [Synthesis Gas.] German Patent Appl. B 177,992, filed Apr. 6, 1937 (Cl. IV c-12 6). PB Rept. 412, May 15, 1945.

Using for the Fischer-Tropsch process a synthesis gas prepared from coal or coke and removing residual hydrocarbons from the synthesis gas by active charcoal or by contact with hot H₂SO₄ or by cooling enough to condense the hydrocarbons.