Process for oil shale retorting using gravity-driven solids flow and solid-solid heat exchange
Abstract
A cascading bed retorting process and apparatus 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:
-
- Los Altos, CA
- Livermore, CA
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- OSTI Identifier:
- 865932
- Patent Number(s):
- 4601811
- Assignee:
- United States of America as represented by United States Department (Washington, DC)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10B - DESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10G - CRACKING HYDROCARBON OILS
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- process; oil; shale; retorting; gravity-driven; solids; flow; solid-solid; heat; exchange; cascading; bed; apparatus; cold; raw; crushed; enters; middle; retort; column; mixer; stage; rapidly; mixed; hot; recycled; heated; pyrolysis; temperature; mixture; passes; pyrolyzer; resides; sufficient; time; complete; occur; spent; recirculated; burner; residual; char; burned; retorting process; pyrolysis temperature; shale retort; heat exchange; oil shale; sufficient time; spent shale; shale retorting; solids flow; bed retorting; residual char; mixer stage; rapidly mixed; retort column; shale enters; recycled shale; raw crushed; cold raw; heated mixture; hot recycled; cascading bed; crushed shale; /208/201/
Citation Formats
Lewis, Arthur E, Braun, Robert L, Mallon, Richard G, and Walton, Otis R. Process for oil shale retorting using gravity-driven solids flow and solid-solid heat exchange. United States: N. p., 1986.
Web.
Lewis, Arthur E, Braun, Robert L, Mallon, Richard G, & Walton, Otis R. Process for oil shale retorting using gravity-driven solids flow and solid-solid heat exchange. United States.
Lewis, Arthur E, Braun, Robert L, Mallon, Richard G, and Walton, Otis R. Wed .
"Process for oil shale retorting using gravity-driven solids flow and solid-solid heat exchange". United States. https://www.osti.gov/servlets/purl/865932.
@article{osti_865932,
title = {Process for oil shale retorting using gravity-driven solids flow and solid-solid heat exchange},
author = {Lewis, Arthur E and Braun, Robert L and Mallon, Richard G and Walton, Otis R},
abstractNote = {A cascading bed retorting process and apparatus 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 Jan 01 00:00:00 EST 1986},
month = {Wed Jan 01 00:00:00 EST 1986}
}
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