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Title: Method and apparatus for igniting an in situ oil shale retort

Abstract

A technique is provided for igniting an in situ oil shale retort having an open void space over the top of a fragmented mass of particles in the retort. A conduit is extended into the void space through a hole in overlying unfragmented formation and has an open end above the top surface of the fragmented mass. A primary air pipe having an open end above the open end of the conduit and a liquid atomizing fuel nozzle in the primary air pipe above the open end of the primary air pipe are centered in the conduit. Fuel is introduced through the nozzle, primary air through the pipe, and secondary air is introduced through the conduit for vortical flow past the open end of the primary air pipe. The resultant fuel and air mixture is ignited for combustion within the conduit and the resultant heated ignition gas impinges on the fragmented mass for heating oil shale to an ignition temperature.

Inventors:
 [1];  [2];  [2];  [2];  [1]
  1. (Grand Junction, CO)
  2. (Debeque, CO)
Issue Date:
Research Org.:
Occidental Oil Shale, Inc. (Grand Junction, CO)
OSTI Identifier:
864050
Patent Number(s):
4301866
Assignee:
Occidental Oil Shale, Inc. (Grand Junction, CO) OSTI
DOE Contract Number:  
FC20-78LC10036
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; apparatus; igniting; situ; oil; shale; retort; technique; provided; void; space; top; fragmented; mass; particles; conduit; extended; overlying; unfragmented; formation; surface; primary; air; pipe; liquid; atomizing; fuel; nozzle; centered; introduced; secondary; vortical; flow; past; resultant; mixture; ignited; combustion; heated; ignition; gas; impinges; heating; temperature; air pipe; fuel nozzle; ignition temperature; top surface; fragmented mass; situ oil; shale retort; oil shale; unfragmented formation; secondary air; air mixture; primary air; void space; vortical flow; flow past; /166/

Citation Formats

Burton, Robert S., Rundberg, Sten I., Vaughn, James V., Williams, Thomas P., and Benson, Gregory C. Method and apparatus for igniting an in situ oil shale retort. United States: N. p., 1981. Web.
Burton, Robert S., Rundberg, Sten I., Vaughn, James V., Williams, Thomas P., & Benson, Gregory C. Method and apparatus for igniting an in situ oil shale retort. United States.
Burton, Robert S., Rundberg, Sten I., Vaughn, James V., Williams, Thomas P., and Benson, Gregory C. Thu . "Method and apparatus for igniting an in situ oil shale retort". United States. https://www.osti.gov/servlets/purl/864050.
@article{osti_864050,
title = {Method and apparatus for igniting an in situ oil shale retort},
author = {Burton, Robert S. and Rundberg, Sten I. and Vaughn, James V. and Williams, Thomas P. and Benson, Gregory C.},
abstractNote = {A technique is provided for igniting an in situ oil shale retort having an open void space over the top of a fragmented mass of particles in the retort. A conduit is extended into the void space through a hole in overlying unfragmented formation and has an open end above the top surface of the fragmented mass. A primary air pipe having an open end above the open end of the conduit and a liquid atomizing fuel nozzle in the primary air pipe above the open end of the primary air pipe are centered in the conduit. Fuel is introduced through the nozzle, primary air through the pipe, and secondary air is introduced through the conduit for vortical flow past the open end of the primary air pipe. The resultant fuel and air mixture is ignited for combustion within the conduit and the resultant heated ignition gas impinges on the fragmented mass for heating oil shale to an ignition temperature.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1981},
month = {1}
}

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