Handling of solids-laden hydrocarbonaceous bottoms in a retort u

Details Handling of solids-laden hydrocarbonaceous bottoms in a retort u Handling of solids-laden hydrocarbonaceous bottoms in a retort u

1979-07-26

1981-01-20

Levine, Herbert

Mineral oils: processes and products

Phenolic or toxic oils

208 11R, C10B 4916, C10B 5306

Patent

active

042460930

ABSTRACT:
Crushed mined coal, oil shale or tar sands, feedstocks are retorted in a retort using heat-carrying solids to supply at least fifty percent of the heat required to produce an average retort temperature of between 700.degree. F. (371.degree. C.) and 1200.degree. F. (649.degree. C.) to produce hydrocarbonaceous gases and oil. The hydrocarbon oils are treated in a manner such that there is produced a bottoms fraction containing organic carbon compounds having a boiling point above 950.degree. F. and particulate inorganic matter derived from the retorted material. The bottoms fraction is fed directly or indirectly into the retort in a manner such that the bottoms fraction does not contact the reheated heat carriers before the heat carrying solids are contacted with the crushed mined feedstock. The bottoms fraction may be fed directly into the retort downstream of the point where the feedstock and heat carriers are first mixed, or the bottoms fraction may be fed into the feedstock before the feedstock enters the retort. This method of handling the bottoms fraction prevents breakage or agglomeration of the heat carrying solids.

REFERENCES:
patent: 2608526 (1952-08-01), Rex
patent: 2657124 (1953-10-01), Gaucher
patent: 3839186 (1974-10-01), Berger
patent: 3844929 (1974-10-01), Wunderlich et al.
patent: 4080285 (1978-03-01), McKinney et al.
patent: 4101412 (1978-07-01), Choi
patent: 4105502 (1978-08-01), Choi

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