C - Chemistry – Metallurgy – 10 – L
Patent
C - Chemistry, Metallurgy
10
L
196/3
C10L 9/08 (2006.01) C10F 5/00 (2006.01) C10L 9/00 (2006.01)
Patent
CA 1194442
ABSTRACT OF THE DISCLOSURE For drying organic solid materials such as, for example, brown coals, these materials are, after preheating, treated with saturated steam under a pressure of 5 to 45 bar and at a temperature of 150 to 260°C. Prior to the subse- quent upgrading step, the water content can further be re- duced by introducing superheated steam and/or a pressure relief, whereupon immediately subsequently an upgrading treatment, particularly a gasification under pressure, a briquetting or a coal liquification, is effected with the sensible or intrinsic heat from the drying stage. Pre- ferably the dried organic solid materials are introduced into the upgrading stage while still being under a residual pressure of the drying stage.
419677
Marks & Clerk
Voest - Alpine Aktiengesellschaft
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