04983278 is referenced by 59 patents and cites 19 patents.

A two step retorting process for pyrolyzing a solid feed selected from the group consisting of oil shale, tar sand, waste motor oil, and scrap tires to recover valuable products therefrom comprising retorting a mixture of the solid feed in heavy oil at a relatively low temperature, recycling the oil formed back to the first step, and completing the pyrolysis of the residue formed at a higher temperature in the absence of product oil recycling. Apparatus is provided including a means for feeding and soaking the solid feed, a HSPR, an IFBC, and means for handling product liquid and gas.

Title
Pyrolysis methods with product oil recycling
Application Number
116327
Publication Number
4983278
Application Date
April 3, 1989
Publication Date
January 8, 1991
Inventor
Curtis J Hogan
Denver
CO, US
Michael Duc
Abu Dhabi
AE
Chang Y Cha
Laramie
WY, US
Agent
Browdy and Neimark
Assignee
Western Research Institute & ILR Services
WY, US
IPC
C10G 1/00
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