Title:
TREATMENT OF COAL
Document Type and Number:
WIPO Patent Application WO2001032803
Kind Code:
A3
Abstract:
Process for treating coal to enhance its rank, wherein the temperature of the material is gradually increased in a controlled set of atmospheres, to allow for the reduction of surface and inherent moisture and the controlled reduction of volatile matter while maintaining the coal's natural structural integrity. The process reduces the time, capitalization, and production costs required to produce coal of enhanced rank, thus substantially increasing the cost effectiveness and production rate over prior processes.
Inventors:
HUNT LARRY H
Application Number:
PCT/US2000/041772
Publication Date:
January 17, 2002
Filing Date:
November 02, 2000
Export Citation:
Assignee:
SAUDI AMERICAN MINERALS INC (US)
International Classes:
C10B53/02; C10B57/02; C10L5/04; C10L5/10; C10L5/32; C10L5/44; C10L9/08; (IPC1-7): C10L5/00; C10L9/00
Foreign References:
| US3565827A | 1971-02-23 | |||
| US3976597A | 1976-08-24 | |||
| US3985516A | 1976-10-12 | |||
| US4200495A | 1980-04-29 | |||
| US4437862A | 1984-03-20 | |||
| US5254139A | 1993-10-19 | |||
| US5468265A | 1995-11-21 | |||
| US6057262A | 2000-05-02 |
Other References:
See also references of EP 1240280A4
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