Mineral oils: processes and products – Phenolic or toxic oils
Patent
1979-02-22
1980-10-28
Levine, Herbert
Mineral oils: processes and products
Phenolic or toxic oils
55 99, 201 20, 208 11R, C10B 5306, C10G 102
Patent
active
042305578
ABSTRACT:
A combination of a retorting process with a granular filtration zone whereby finely divided solids are removed from hydrocarbonaceous vapors. Raw hydrocarbon-containing particles such as shale are retorted by contacting them with heat carrier particles, and the resulting hydrocarbonaceous vapors withdrawn from the retort are contaminated with entrained, finely divided solids. These solids are removed from the hydrocarbonaceous vapors by passing the contaminated vapors at substantially the retorting temperature transversely through a downwardly moving bed of solid contact material maintained at approximately retorting temperature. The solid contact material is selected from retorted solids, heat carrier particles and mixtures of them. The mixture of finely divided solids and contact material withdrawn from the granular filtration may be returned to the process.
REFERENCES:
patent: 3252886 (1966-05-01), Crawford
patent: 4017278 (1977-04-01), Reese
patent: 4056461 (1977-11-01), Unverferth
patent: 4087347 (1978-05-01), Langlois et al.
patent: 4160719 (1979-07-01), Pollock
Hendrickson "Synthetic Fuels Data Handbook", 1975 pp. 80 to 82.
Schmidt et al., "Journal of the Air Pollution Control Association", vol. 28, No. 2, Feb. 1978, pp. 143 to 146.
Bertelsen Corey A.
Spars Byron G.
Bosworth M. K.
Chevron Research Company
Evans R. H.
Levine Herbert
Newell D. A.
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