System for utilizing oil shale fines
Abstract
A system is provided for utilizing fines of carbonaceous materials such as particles or pieces of oil shale of about one-half inch or less diameter which are rejected for use in some conventional or prior surface retorting process, which obtains maximum utilization of the energy content of the fines and which produces a waste which is relatively inert and of a size to facilitate disposal. The system includes a cyclone retort (20) which pyrolyzes the fines in the presence of heated gaseous combustion products, the cyclone retort having a first outlet (30) through which vapors can exit that can be cooled to provide oil, and having a second outlet (32) through which spent shale fines are removed. A burner (36) connected to the spent shale outlet of the cyclone retort, burns the spent shale with air, to provide hot combustion products (24) that are carried back to the cyclone retort to supply gaseous combustion products utilized therein. The burner heats the spent shale to a temperature which forms a molten slag, and the molten slag is removed from the burner into a quencher (48) that suddenly cools the molten slag to form granules that are relatively inert and of amore »
- Inventors:
-
- Laramie, WY
- Issue Date:
- OSTI Identifier:
- 864272
- Patent Number(s):
- 4340463
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10G - CRACKING HYDROCARBON OILS
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- utilizing; oil; shale; fines; provided; carbonaceous; materials; particles; pieces; one-half; inch; diameter; rejected; conventional; prior; surface; retorting; process; obtains; maximum; utilization; energy; content; produces; waste; relatively; inert; size; facilitate; disposal; cyclone; retort; 20; pyrolyzes; presence; heated; gaseous; combustion; products; outlet; 30; vapors; exit; cooled; provide; 32; spent; removed; burner; 36; connected; burns; air; hot; 24; carried; supply; utilized; therein; heats; temperature; forms; molten; slag; quencher; 48; suddenly; cools; form; granules; convenient; handle; ground; industrial; processes; retorting process; gaseous combustion; cyclone retort; relatively inert; industrial processes; molten slag; hot combustion; carbonaceous materials; combustion products; oil shale; carbonaceous material; industrial process; combustion product; spent shale; energy content; heated gas; heated gaseous; facilitate disposal; maximum utilization; /208/201/202/
Citation Formats
Harak, Arnold E. System for utilizing oil shale fines. United States: N. p., 1982.
Web.
Harak, Arnold E. System for utilizing oil shale fines. United States.
Harak, Arnold E. Fri .
"System for utilizing oil shale fines". United States. https://www.osti.gov/servlets/purl/864272.
@article{osti_864272,
title = {System for utilizing oil shale fines},
author = {Harak, Arnold E},
abstractNote = {A system is provided for utilizing fines of carbonaceous materials such as particles or pieces of oil shale of about one-half inch or less diameter which are rejected for use in some conventional or prior surface retorting process, which obtains maximum utilization of the energy content of the fines and which produces a waste which is relatively inert and of a size to facilitate disposal. The system includes a cyclone retort (20) which pyrolyzes the fines in the presence of heated gaseous combustion products, the cyclone retort having a first outlet (30) through which vapors can exit that can be cooled to provide oil, and having a second outlet (32) through which spent shale fines are removed. A burner (36) connected to the spent shale outlet of the cyclone retort, burns the spent shale with air, to provide hot combustion products (24) that are carried back to the cyclone retort to supply gaseous combustion products utilized therein. The burner heats the spent shale to a temperature which forms a molten slag, and the molten slag is removed from the burner into a quencher (48) that suddenly cools the molten slag to form granules that are relatively inert and of a size that is convenient to handle for disposal in the ground or in industrial processes.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1982},
month = {Fri Jan 01 00:00:00 EST 1982}
}