Aromatic extraction process having improved water stripper

Details Aromatic extraction process having improved water stripper Aromatic extraction process having improved water stripper

1988-10-03

1990-01-30

Caldarola, Glenn

Mineral oils: processes and products

Fractionation

Liquid extraction with solvents

208325, C10G 2128

Patent

active

048971820

ABSTRACT:
An improved process for the extraction of aromatics from a mixed feed provides additional flexibility of operation which is especially useful when the feed contains relatively large amounts of nonaromatics and therefore produces a large raffinate stream. Water for washing the non-aromatic raffinate is obtained in part by condensing a portion of the steam generated for stripping aromatics from the extract.

REFERENCES:
patent: 3179708 (1965-04-01), Penisten
patent: 3551327 (1970-12-01), Kelly et al.
patent: 3652452 (1972-03-01), Eyermann
patent: 3864244 (1975-02-01), Van tassell
patent: 3864245 (1975-02-01), Van Tassell
patent: 4046675 (1977-09-01), Asselin
patent: 4058454 (1977-11-01), Asselin
patent: 4781820 (1988-11-01), Forte

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