Supercritical solvent coal extraction

Details Supercritical solvent coal extraction Supercritical solvent coal extraction

1981-11-17

1984-04-17

Wright, William G.

Mineral oils: processes and products

Phenolic or toxic oils

208 10, C10G 100, C10G 106

Patent

active

044433212

ABSTRACT:
Yields of soluble organic extract are increased up to about 50% by the supercritical extraction of particulate coal at a temperature below the polymerization temperature for coal extract fragments (450.degree. C.) and a pressure from 500 psig to 5,000 psig by the conjoint use of a solvent mixture containing a low volatility, high critical temperature coal dissolution catalyst such as phenanthrene and a high volatility, low critical temperature solvent such as toluene.

REFERENCES:
patent: 1925005 (1933-08-01), Rose et al.
patent: 3375188 (1968-03-01), Bloomer
patent: 3503864 (1970-03-01), Nelson
patent: 3558468 (1971-01-01), Wise
patent: 3607716 (1971-09-01), Roach
patent: 3607717 (1971-09-01), Roach
patent: 3850738 (1974-11-01), Stewart et al.
patent: 3929193 (1975-12-01), Duke
patent: 3970541 (1976-07-01), Williams et al.
patent: 3997424 (1976-12-01), Urquhart
patent: 4005005 (1977-01-01), McCallum et al.
patent: 4036731 (1977-07-01), Martin
patent: 4089658 (1978-05-01), Bay
Wm. S. Wise, Solvent Treatment of Coal, M & B Monograph CE/2, J. Cook, Edition, 1971.
Orchin, M. et al., Studies of the Extraction and Coking of Coal, Bulletin 506, Bureau of Mines.

Affiliated with

Also associated with

Rating

Supercritical solvent coal extraction does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Supercritical solvent coal extraction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Supercritical solvent coal extraction will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-94366