Fuel and related compositions – Liquid fuels – Aluminum or heavy metal – other than lead – containing
Patent
1976-01-12
1977-10-04
Dees, Carl F.
Fuel and related compositions
Liquid fuels
Aluminum or heavy metal, other than lead, containing
44 1R, 44 6, C10L 900, C10L 910
Patent
active
040521680
ABSTRACT:
A process for upgrading lignitic-type coal including brown coals, lignite and subbituminous coals to render it more suitable as a solid fuel in which the moist lignitic-type coal in an as-mined condition is subjected to an autoclaving treatment at a controlled elevated temperature and under high pressure for a period of time to convert the moisture and a portion of the volatile organic constituents therein to a gaseous phase and to effect a controlled thermal restructuring of the chemical structure thereof. In accordance with a preferred practice, the autoclaved upgraded carbonaceous product during or after cooling is contacted with the gaseous phase to effect a deposition of at least a portion of the condensible organic constituents thereon. The upgraded carbonaceous product is stable and resistant to weathering, and is of an increased heating value approaching that of bituminous coal.
REFERENCES:
patent: 1594994 (1926-08-01), Bone
patent: 1871862 (1932-08-01), Schoch
patent: 2966400 (1960-12-01), Lykken
patent: 3733183 (1973-05-01), Singh
Evans et al., "Dewatering of Brown Coal Before Combustion," Journal of the Institute of Fuel, Oct, 1970, pp. 413-419.
LandOfFree
Process for upgrading lignitic-type coal as a fuel does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for upgrading lignitic-type coal as a fuel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for upgrading lignitic-type coal as a fuel will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1772567