Method for dehydrating wet coal

Details Method for dehydrating wet coal Method for dehydrating wet coal

1996-09-10

1998-10-06

Bennett, Henry A.

Drying and gas or vapor contact with solids

Process

With contacting of material treated with solid or liquid agent

34329, 34330, 44572, 44574, 44620, F26B 300

Patent

active

058159460

ABSTRACT:
A process is described whereby wet coal may be dehydrated and inhibited against rehydration by immersing in a bath of molten paraffin hydrocarbon for a sufficient period of time to evaporate and expel inherent water from the coal. The hydrocarbon then inhibits any rehydration period. It is also an embodiment of this invention to describe a process whereby the water expelled may be recovered for useful purposes.

REFERENCES:
patent: 4176011 (1979-11-01), Knappstein
patent: 4185395 (1980-01-01), Nakako et al.
patent: 4403996 (1983-09-01), Matsuura et al.
patent: 4508539 (1985-04-01), Nakai
patent: 4511363 (1985-04-01), Nakamura et al.
patent: 4866856 (1989-09-01), Feeley
patent: 4904277 (1990-02-01), Najjar et al.
patent: 4950307 (1990-08-01), Najjar et al.
patent: 5199185 (1993-04-01), Davidson

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