PATENTS
1916. KOPPENBERG, H. [Generating Water Gas, Especially Synthesis Gas,
From Coal Dust and Steam.] German Patent
727,676, Nov. 9, 1942; appl. K
142,695, filed June 1936 (Cl. 24 e-1.05). Chem. Zentralb., 1943, I,
p. 1131; Chem. Abs., vol. 37, 1943, p. 6856.
Fresh coal is fed into the generator in 2 batches: 1 is added to circulating
gas containing steam when the gas is at its peak, and the 2d is added when the
gas is at a lower temperature.
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