Mineral oils: processes and products – Phenolic or toxic oils
Patent
1982-12-30
1984-05-15
Gantz, Delbert E.
Mineral oils: processes and products
Phenolic or toxic oils
208 10, 208 45, 208107, 208112, C10G 100, C10G 106, C10G 4700, C10C 118
Patent
active
044486650
ABSTRACT:
Coal, petroleum residuum and similar carbonaceous feed materials are subjected to hydroconversion in the presence of molecular hydrogen to produce a hydroconversion effluent which is then subjected to one or more separation steps to remove lower molecular weight liquids and produce a heavy bottoms stream containing high molecular weight liquids and unconverted carbonaceous material. The viscosity of the bottoms streams produced in the separation step or steps is prevented from increasing rapidly by treating the feed to the separation step or steps with ammonia gas prior to or during the separation step or steps. The viscosity of the heavy bottoms stream produced in the final separation step is also controlled by treating these bottoms with ammonia gas. In a preferred embodiment of the invention, the effluent from the hydroconversion reactor is subjected to an atmospheric distillation followed by a vacuum distillation and the feeds to these distillations are contacted with ammonia during the distillations.
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Billimoria Rustom M.
Lington Christopher G.
Plumlee Karl W.
Tao Frank
Zaczepinski Sioma
Exxon Research and Engineering Co.
Finkle Yale S.
Gantz Delbert E.
Wright William G.
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