04637464 is referenced by 257 patents and cites 7 patents.

Product yield and quality is increased during in situ retorting of oil shale by pulsed combustion in which the flow of feed gas to the flame front is intermittently stopped while continuously retorting the oil shale. In the process, a water purge is injected into the retort between pulses of feed gas to enhance transfer of sensible heat from the combustion zone to the retorting zone and enlarge the separation between the combustion zone and the advancing front of the retorting zone. Retort water produced during retorting can be used as part of the water purge and/or feed gas for process economy and efficiency.

Title
In situ retorting of oil shale with pulsed water purge
Application Number
6/592376
Publication Number
4637464
Application Date
March 22, 1984
Publication Date
January 20, 1987
Inventor
George R Hoekstra
Wheaton
IL, US
John M Forgac
Elmhurst
IL, US
Agent
William H Magidson
William T McClain
Thomas W Tolpin
Assignee
Chevron U
Amoco Corporation
IL, US
IPC
E21B 43/24
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