Mineral oils: processes and products – Phenolic or toxic oils
Patent
1980-08-26
1982-04-13
Gantz, Delbert E.
Mineral oils: processes and products
Phenolic or toxic oils
208 8R, 208 11LE, 208 11R, 201 25, 585240, C10C 100, C10B 4300
Patent
active
043246419
ABSTRACT:
In a process for recovery of values contained in solid carbonaceous material, a solid carbonaceous material is comminuted and then treated at an elevated temperature in a pretreatment zone with a first capping agent which is at treating conditions either a liquid or a gas. The treating conditions are such that the first capping agent is sorbed by the solid particulate carbonaceous material. The solid particulate carbonaceous material containing the sorbed first capping agent is then subjected to pyrolysis in the presence of a second capping agent, a carbon containing solid particulate source of heat and a beneficially reactive transport gas in a transport flash pyrolysis reactor, to form a pyrolysis product stream. The solid particulate carbonaceous feed material is pyrolyzed and newly formed volatilized hydrocarbon free radicals are substantially simultaneously terminated by the sorbed first capping agent or the second capping agent as such radicals are formed, to form a pyrolysis product stream. The pyrolysis product stream contains a gaseous mixture and particulate solids which are separated from the gaseous mixture to form a substantially particulate solids-free gaseous mixture stream which contains capping agent terminated volatilized hydrocarbon free radicals, hydrogen depleted capping agents, pyrolysis product vapors and a transport gas.
Hydrocarbons of four or more carbon atoms in the gaseous mixture stream are condensed. A liquid stream containing the stabilized liquid product is then treated or separated into various fractions. A liquid containing the hydrogen depleted capping agents is hydrogenated to form regenerated capping agents, at least a portion of which is recycled to the pretreatment zone and at least another portion is recycled to the pyrolysis zone. In another embodiment the capping agents are produced by the process, separated from the liquid product mixture, and recycled.
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Desulfurization via Hydrogen Donor Reactions, G. Doyle, Corporate Research Laboratories, Exxon, Jul. 1975, pp. 1-21.
Gantz Delbert E.
Logan Forrest E.
Occidental Research Corporation
Wright William G.
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