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Title: 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 » size that is convenient to handle for disposal in the ground or in industrial processes.« less

Inventors:
 [1]
  1. (Laramie, WY)
Issue Date:
OSTI Identifier:
864272
Patent Number(s):
4340463
Assignee:
United States of America as represented by United States (Washington, DC) OSTI
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 = {1982},
month = {1}
}

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