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
043246435
ABSTRACT:
In a process for recovery of values contained in solid carbonaceous material, the solid carbonaceous material is comminuted and then subjected to pyrolysis, preferably in the presence of a solid particulate source of heat and a transport gas in a transport flash pyrolysis reactor, to form a pyrolysis product stream. The pyrolysis product stream contains a gaseous mixture and particulate solids. The solids are separated from the gaseous mixture to form a substantially solids-free gaseous stream which comprises volatilized hydrocarbon free radicals newly formed by pyrolysis. Preferably the solid particulate source of heat is formed by oxidizing part of the separated particulate solids. Condensed stabilized hydrocarbons are obtained by quenching the gaseous mixture stream with a quench fluid which contains a capping agent for stabilizing and terminating newly formed volatilized hydrocarbon free radicals. The capping agent is partially depleted of hydrogen by the stabilization and termination reaction. 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 agent is hydrogenated to form a regenerated capping agent. At least a portion of the regenerated capping agent is recycled to the quench zone as the quench fluid. In another embodiment capping agent is produced by the process, separated from the liquid product mixture, and recycled.
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Desulfurization via Hydrogen Donor Reactions pp. 1-21, G. Doyle Exxon Corporate Research Laboratories.
Gantz Delbert E.
Logan Forrest E.
Occidental Research Corporation
Wright William G.
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