221. ------. [BRAUNKOHLE-BENZIN, A. G.] [Heat Control.] German Patent Appl. B 178,964, filed June 24, 1937 (Cl. IV c-12 6). PB.

Patent Abstracts

221. ------. [BRAUNKOHLE-BENZIN, A. G.] [Heat Control.] German Patent Appl. B 178,964, filed June 24, 1937 (Cl. IV c-12 6). PB.

Operating conditions, particularly coolant supply, are adjusted by using the relative CO₂ content or density of end gas in comparison with charge gas as a guide.