Caustic treatment of alkylate-containing hydrocarbon

Details Caustic treatment of alkylate-containing hydrocarbon Caustic treatment of alkylate-containing hydrocarbon

1975-09-12

1977-08-09

Crasanakis, George

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

26068363, C07C 354

Patent

active

040411028

ABSTRACT:
An improved process for treating a hydrocarbon stream exiting the hydrocarbon-acid separator of an anionic surfactant promoted, sulfuric acid catalyzed, light olefinisoparaffin alkylation unit wherein the stream contains the alkylate, excess isoparaffins, traces of the acid alkylation catalyst, and an anionic surface-active alkylation promoter. The improvement comprises mixing, prior to introducing into a hydrocarbon-caustic separator, the hydrocarbon stream with a water-caustic solution having at least 15% by wt. concentration of caustic such that the salt of the promoter appears as a flocculent precipitate at the hydrocarbon-water-caustic solution interface in the hydrocarbon-caustic separator.

REFERENCES:
patent: 2425572 (1947-08-01), Slotterbeck
patent: 3013093 (1961-12-01), Stiles
patent: 3239578 (1966-03-01), Samuelson
patent: 3551514 (1970-12-01), Evering
patent: 3655807 (1972-04-01), Rakow et al.

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