Chemistry of hydrocarbon compounds – Purification – separation – or recovery – By addition of extraneous agent – e.g. – solvent – etc.
Patent
1996-09-12
1999-10-12
Griffin, Walter D.
Chemistry of hydrocarbon compounds
Purification, separation, or recovery
By addition of extraneous agent, e.g., solvent, etc.
585833, 585864, 585856, 585857, 585863, 208311, 208317, 208318, 208322, 208326, 208327, C07C 710, C07C 717, C10G 2116, C10G 2104
Patent
active
059657847
ABSTRACT:
An extraction process and an apparatus for separating aromatic compounds contained in a liquid hydrocarbon feedstock where the feedstock feed into the lower part of an extraction column is brought into intimate countercurrent contact therein with a third liquid and at least partially with at least one structured packing element (31) of the static mixer type contained in the upper part of the extraction column. Such third liquid (feed to the top of said column) is in the form of a solvent which is immiscible with the feedstock except for being capable of extracting the aromatic compounds. At least part of the extract phase rich in solvent and aromatic compounds is separated by liquid--liquid separation (26), preferably by gravity type decantation, into a phase rich in solvent and essentially depleted of raffinate, which is removed, and a phase rich in raffinate and impoverished in solvent, which is recycled to the extraction step. The extraction process is typically to be used to formulate lubricant oils.
REFERENCES:
patent: 3979281 (1976-09-01), Gerhold
patent: 4336106 (1982-06-01), Winter, III
patent: 4532086 (1985-07-01), Pluss
patent: 4686089 (1987-08-01), Haberland
patent: 4732685 (1988-03-01), Brandt et al.
patent: 4869809 (1989-09-01), Sarna
patent: 5059306 (1991-10-01), Kramer et al.
patent: 5328596 (1994-07-01), Gammie, II
The English translation of Sulzer's Article, Feb. 15, 1995.
Bracou Herve
Gouzien Luc
Dang Thuan D
Griffin Walter D.
Kowalski Thomas J.
S. Safford A. Thomas
Total Raffinage Distribution , S.A.
LandOfFree
Process and apparatus for extracting aromatic compounds containe does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process and apparatus for extracting aromatic compounds containe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and apparatus for extracting aromatic compounds containe will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-654460