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Title: Process for oil shale retorting using gravity-driven solids flow and solid-solid heat exchange

Abstract

A cascading bed retorting process and apparatus are disclosed in which cold raw crushed shale enters at the middle of a retort column into a mixer stage where it is rapidly mixed with hot recycled shale and thereby heated to pyrolysis temperature. The heated mixture then passes through a pyrolyzer stage where it resides for a sufficient time for complete pyrolysis to occur. The spent shale from the pyrolyzer is recirculated through a burner stage where the residual char is burned to heat the shale which then enters the mixer stage.

Inventors:
; ; ;
Issue Date:
OSTI Identifier:
7149041
Application Number:
ON: DE84011289
Assignee:
Dept. of Energy
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Resource Relation:
Other Information: Portions are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
04 OIL SHALES AND TAR SANDS; OIL SHALES; RETORTING; SPENT SHALES; COMBUSTION; EQUIPMENT; HEAT TRANSFER; PYROLYSIS; BITUMINOUS MATERIALS; CARBONACEOUS MATERIALS; CHEMICAL REACTIONS; DECOMPOSITION; ENERGY SOURCES; ENERGY TRANSFER; FOSSIL FUELS; FUELS; MATERIALS; OXIDATION; THERMOCHEMICAL PROCESSES; 040402* - Oil Shales & Tar Sands- Surface Methods; 040600 - Oil Shales & Tar Sands- Products & By-Products

Citation Formats

Lewis, A E, Braun, R L, Mallon, R G, and Walton, O R. Process for oil shale retorting using gravity-driven solids flow and solid-solid heat exchange. United States: N. p., 1983. Web.
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Lewis, A E, Braun, R L, Mallon, R G, & Walton, O R. Process for oil shale retorting using gravity-driven solids flow and solid-solid heat exchange. United States.
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Lewis, A E, Braun, R L, Mallon, R G, and Walton, O R. Wed . "Process for oil shale retorting using gravity-driven solids flow and solid-solid heat exchange". United States.
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@article{osti_7149041,
title = {Process for oil shale retorting using gravity-driven solids flow and solid-solid heat exchange},
author = {Lewis, A E and Braun, R L and Mallon, R G and Walton, O R},
abstractNote = {A cascading bed retorting process and apparatus are disclosed in which cold raw crushed shale enters at the middle of a retort column into a mixer stage where it is rapidly mixed with hot recycled shale and thereby heated to pyrolysis temperature. The heated mixture then passes through a pyrolyzer stage where it resides for a sufficient time for complete pyrolysis to occur. The spent shale from the pyrolyzer is recirculated through a burner stage where the residual char is burned to heat the shale which then enters the mixer stage.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Sep 21 00:00:00 EDT 1983},
month = {Wed Sep 21 00:00:00 EDT 1983}
}
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