Selective multi-ring aromatics extraction using a porous, non-se

Details Selective multi-ring aromatics extraction using a porous, non-se Selective multi-ring aromatics extraction using a porous, non-se

1990-12-05

1991-09-03

Dawson, Robert A.

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210644, 210649, 210655, 210651, 55 16, 55158, 585819, B01D 300

Patent

active

050452061

ABSTRACT:
Multi-ring aromatic hydrocarbons and/or toxins are selectively solvent extracted from hydocarbon feed streams by the process comprising contacting the aromatics and/or toxins containing hydrocarbon stream with one side of a porous, non-selective partition barrier membrane while simultaneously contacting the other side of said membrane with an aromatics selective extraction solvent whereby the multi-ring aromatic hydrocarbons and/or toxins selectively migrate through the porous partition barrier membrane in response to the selective solvent. A preferred extraction solvent is ethylenediamine. The permeate comprising multi-ring aromatics in solvent can be subjected to a membrane separation process to separate the extraction solvent from the aromatics.

REFERENCES:
patent: 2930754 (1960-03-01), Stuckey
patent: 2947687 (1960-08-01), Lee
patent: 2956112 (1976-05-01), Lee et al.
patent: 2958656 (1960-11-01), Stuckey
patent: 3043891 (1962-07-01), Stuckey
patent: 3140256 (1964-07-01), Martin et al.
patent: 3244763 (1966-04-01), Cahn
patent: 3305595 (1967-02-01), Paulson
patent: 3320328 (1967-05-01), Michaels
patent: 3370102 (1968-02-01), Carpenter et al.
patent: 3725255 (1973-04-01), Barilli et al.
patent: 3725256 (1973-04-01), Lugo
patent: 3725257 (1973-04-01), Cavenaghi et al.
patent: 4115465 (1978-09-01), Elfert et al.
patent: 4239506 (1980-12-01), Steigelmann et al.
patent: 4510047 (1985-04-01), Thompson
patent: 4510097 (1985-04-01), Thompson
patent: 4532347 (1985-07-01), Vaughan
patent: 4670151 (1987-06-01), Bitter
patent: 4797200 (1989-06-01), Osterhuber
patent: 4837054 (1989-06-01), Schucker
patent: 4861628 (1989-08-01), Schucker
patent: 4914064 (1990-04-01), Schucker
patent: 4929357 (1990-05-01), Schucker
patent: 4929358 (1990-05-01), Koenitzer
patent: 4962270 (1990-10-01), Feimer et al.
patent: 4962271 (1990-10-01), Black et al.
patent: 4966707 (1990-10-01), Cussler et al.
"Microporous Membrane Solvent Extraction", Prasad, R. et al., Separation Science & Technology 22 (2&3) 619-640, 1987.
"Dispersion-Free Solvent Extraction with Microporous Hollow Fiber Modules", Prasad, R. et al., AIChE Summer National Meeting, Boston, 1986.
"Designing Hollow-Fiber Contactors", Yang, M. C. et al., AIChe Journal, Nov. 1986, vol. 32, No. 11, pp. 1910-1916.
"Liquid-Liquid Extractions with Microporous Hollow Fibers", D'Elia, N. A. et al., J. Memb. Sci. 29 (1986) 309-319.
"Critical Entry Pressure for Liquids in Hydrophobic Membranes", Kim. B. S. et al., J. Coll. & Interface Science, vol. 115, No. 1, 1987, pp. 1-8.
"Solvent Extraction with Microporous Hydrophilic and Composite Membranes", Prasad, R. et al., AIChE Journal, vol. 33, No. 7, (1987) pp. 1057-1066.
"Dispersion-Free Solvent Extraction with Microporous Hollow Fiber Modules" Prasad, R. et al., AIChE Journal, vol. 34, No. 2, (1988), pp. 177-187.
"Nondispersive Solvent Extraction Using Microporous Membranes", Prasad, R. et al., AIChE Symposium Series, Membrane Materials & Proc. No. 261, vol. 84, 1988, pp. 42-53.
"Hollow Fiber Solvent Extraction of Pharmaceutical Products: A Case Study", Prasad, R. et al., J. Memb. Sci. 47, (1989), 235-259.
"Novel Uses of Microporous Membranes, A Case Study", R. W. Callahan, AIChE Symposium Series, Membrane Materials and Process, No. 261, vol. 84, 1988, pp. 54-65.

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