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Title: Combustion heater for oil shale

Abstract

A combustion heater for oil shale heats particles of spent oil shale containing unburned char by burning the char. A delayed fall is produced by flowing the shale particles down through a stack of downwardly sloped overlapping baffles alternately extending from opposite sides of a vertical column. The delayed fall and flow reversal occurring in passing from each baffle to the next increase the residence time and increase the contact of the oil shale particles with combustion supporting gas flowed across the column to heat the shale to about 650.degree.-700.degree. C. for use as a process heat source.

Inventors:
 [1];  [1];  [2];  [1]
  1. (Livermore, CA)
  2. (Los Altos, CA)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
865580
Patent Number(s):
4539917
Assignee:
United States of America as represented by United States (Washington, DC) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
combustion; heater; oil; shale; heats; particles; spent; containing; unburned; char; burning; delayed; fall; produced; flowing; stack; downwardly; sloped; overlapping; baffles; alternately; extending; opposite; vertical; column; flow; reversal; occurring; passing; baffle; increase; residence; time; contact; supporting; gas; flowed; heat; 650; degree; -700; process; source; shale particles; residence time; gas flow; oil shale; heat source; shale containing; combustion heat; combustion heater; supporting gas; flow reversal; /110/34/201/

Citation Formats

Mallon, Richard G., Walton, Otis R., Lewis, Arthur E., and Braun, Robert L. Combustion heater for oil shale. United States: N. p., 1985. Web.
Mallon, Richard G., Walton, Otis R., Lewis, Arthur E., & Braun, Robert L. Combustion heater for oil shale. United States.
Mallon, Richard G., Walton, Otis R., Lewis, Arthur E., and Braun, Robert L. Tue . "Combustion heater for oil shale". United States. https://www.osti.gov/servlets/purl/865580.
@article{osti_865580,
title = {Combustion heater for oil shale},
author = {Mallon, Richard G. and Walton, Otis R. and Lewis, Arthur E. and Braun, Robert L.},
abstractNote = {A combustion heater for oil shale heats particles of spent oil shale containing unburned char by burning the char. A delayed fall is produced by flowing the shale particles down through a stack of downwardly sloped overlapping baffles alternately extending from opposite sides of a vertical column. The delayed fall and flow reversal occurring in passing from each baffle to the next increase the residence time and increase the contact of the oil shale particles with combustion supporting gas flowed across the column to heat the shale to about 650.degree.-700.degree. C. for use as a process heat source.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {1}
}

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