Combustion heater for oil shale

Patent · Tue Jan 01 00:00:00 EST 1985

OSTI ID:865580

Mallon, Richard G ^[1]; Walton, Otis R ^[1]; Lewis, Arthur E ^[2]; Braun, Robert L ^[1]

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1. Livermore, CA
2. Los Altos, CA

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.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4539917
• OSTI ID: 865580
• Country of Publication: United States
• Language: English

Related Subjects

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/