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1. (WO1992010448) INTEGRATED SOLVENT EXTRACTION/MEMBRANE EXTRACTION WITH RETENTATE RECYCLE FOR IMPROVED RAFFINATE YIELD
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1992/010448 International Application No.: PCT/US1991/008956
Publication Date: 25.06.1992 International Filing Date: 27.11.1991
Chapter 2 Demand Filed: 08.06.1992
IPC:
C07C 7/00 (2006.01) ,C07C 7/10 (2006.01) ,C07C 7/144 (2006.01) ,C10G 21/28 (2006.01) ,C10G 53/04 (2006.01)
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
7
Purification, separation or stabilisation of hydrocarbons; Use of additives
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
7
Purification, separation or stabilisation of hydrocarbons; Use of additives
10
by extraction, i.e. purification or separation of liquid hydrocarbons with the aid of liquids
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
7
Purification, separation or stabilisation of hydrocarbons; Use of additives
144
using membranes, e.g. selective permeation
C CHEMISTRY; METALLURGY
10
PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
G
CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
21
Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents
28
Recovery of used solvent
C CHEMISTRY; METALLURGY
10
PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
G
CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
53
Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes
02
plural serial stages only
04
including at least one extraction step
Applicants:
EXXON RESEARCH AND ENGINEERING COMPANY [US/US]; 180 Park Avenue P.O. Box 390 Florham Park, NJ 07932-0390, US
Inventors:
CHEN, Tan-Jen; US
SWEET, James, Ronald; US
Agent:
ALLOCCA, Joseph, J.; Exxon Research and Engineering Company P.O. Box 390 180 Park Avenue Florham Park, NJ 07932-0390, US
Priority Data:
624,80705.12.1990US
Title (EN) INTEGRATED SOLVENT EXTRACTION/MEMBRANE EXTRACTION WITH RETENTATE RECYCLE FOR IMPROVED RAFFINATE YIELD
(FR) EXTRACTION COMBINEE A MEMBRANE/AU SOLVANT AVEC RECYCLAGE DU RETENTAT POUR AMELIORER LA PRODUCTION DE RAFFINAT
Abstract:
(EN) Raffinate yield from solvent extraction is improved when the extract phase (5) recovered from the solvent extraction process (2) is subjected to a membrane separation step (6) wherein a saturates/1-ring aromatics rich retentate (8) is produced and a 2+ ring aromatics rich permeate (7) are produced and the saturates/1-ring aromatic rich retentate phase is recycled to the solvent extraction process.
(FR) On améliore la production de raffinat provenant de l'extraction au solvant, lorsqu'on soumet l'extrait (5) récupéré du processus d'extraction au solvant (2) à une étape de séparation par membrane (6) dans laquelle on produit un retentat (8) riche en aromatiques monocycliques/composés saturés et un perméat (7) riche en aromatiques bicycliques ou pluricycliques, et qu'on recycle la phase de retentant riche en aromatiques monocycliques/composés saturés pour le processus d'extraction au solvant.
Designated States: CA, JP
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0562005JPH06503599CA2096656