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Title: Apparatus for oil shale retorting

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:
 [1];  [2];  [2];  [2]
  1. Los Altos, CA
  2. Livermore, CA
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
866034
Patent Number(s):
4619738
Assignee:
United States of America as represented by United States (Washington, DC)
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
apparatus; oil; shale; retorting; cascading; bed; process; 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; heat; retorting process; pyrolysis temperature; shale retort; oil shale; sufficient time; spent shale; shale retorting; 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; /202/201/

Citation Formats

Lewis, Arthur E, Braun, Robert L, Mallon, Richard G, and Walton, Otis R. Apparatus for oil shale retorting. United States: N. p., 1986. Web.
Lewis, Arthur E, Braun, Robert L, Mallon, Richard G, & Walton, Otis R. Apparatus for oil shale retorting. United States.
Lewis, Arthur E, Braun, Robert L, Mallon, Richard G, and Walton, Otis R. Wed . "Apparatus for oil shale retorting". United States. https://www.osti.gov/servlets/purl/866034.
@article{osti_866034,
title = {Apparatus for oil shale retorting},
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 = {1986},
month = {1}
}

Patent:

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