C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
196/5.8
C10G 1/06 (2006.01) C10G 1/00 (2006.01)
Patent
CA 1228315
ABSTRACT In a method of liquefying coal at elevated pressure and temperature in a reaction zone, the reaction product leaving the reaction zone is fed to a coking zone, and the gases and vapours formed therein, mainly distillate oil vapours, are cooled, preferably by direct heat exchange with a fresh coal slurry. The gases and vapours which are not cooled by this heat exchange are remoded from the installation as end products. The method of operation transfers the oil production partly from the reaction zone to the coking zone, so that the reaction zone may be operated at a low pressure. In addition, the direct heat exchange between the vapours produced and the fresh coal slurry enables a large part of the exothermal heat produced during the liquefying reaction to be returned to the process.
467059
Gfk Gesellschaft Fur Kohleversflussigung Mbh
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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