Mineral oils: processes and products – By treatment of solid mineral – e.g. – coal liquefaction – etc. – Specified agitation or circulation in gas contact zone
Patent
1988-05-04
1989-11-14
Pal, Asok
Mineral oils: processes and products
By treatment of solid mineral, e.g., coal liquefaction, etc.
Specified agitation or circulation in gas contact zone
208427, C10G 102
Patent
active
048805289
ABSTRACT:
A method and apparatus for utilizing tar sands having a broad range of bitumen content is disclosed. More particularly, tar sands are pyrolyzed in a cyclone retort with high temperature gases recycled from the cyclone retort to produce oil and hydrocarbon products. The spent tar sands are then burned at 2000.degree. F. in a burner to remove residual char and produce a solid waste that is easily disposable. The process and apparatus have the advantages of being able to utilize tar sands having a broad range of bitumen content and the advantage of producing product gases that are free from combustion gases and thereby have a higher heating value. Another important advantage is rapid pyrolysis of the tar sands in the cyclone so as to effectively utilize smaller sized reactor vessels for reducing capitol and operating costs.
REFERENCES:
patent: 4229185 (1980-10-01), Sass
patent: 4269696 (1981-05-01), Metrailer
patent: 4340463 (1982-07-01), Harak
patent: 4448668 (1984-05-01), Deering
patent: 4459201 (1984-07-01), Eakman et al.
patent: 4530752 (1985-07-01), Deering et al.
Harak et al, "A Cyclone Oil Shale Retorting Concept," Fossil Energy, pp. 1-54, DOE/METC/84-20 (DE84009281).
Harak Arnold E.
Westhoff James D.
Hamel Stephen D.
Hightower Judson R.
Larcher Earl L.
Pal Asok
The United States of America as represented by the United States
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