PROCESS FOR THE RECOVERY OF SULFURIC ACID USING POLYMERIC MEMBRANES

PROCESS FOR THE RECOVERY OF SULFURIC ACID USING POLYMERIC MEMBRANES

A method for recovering acid from a feed mixture comprising acid, hydrocarbons and water, the method comprising: processing said mixture using a first polymeric membrane to form a first retentate containing a substantially greater concentration of hydrocarbons than said feed mixture and a first perm...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: BECK, JEFFREY, SCOTT, WEISSMAN, WALTER, MINHAS, BHUPENDER, S, MELLI, TOMAS, R, KRAMBECK, FREDERICK, J, PEIFFER, DENNIS, GEORGE, ACKERMAN, STEVEN, STERN, DAVID, LAWRENCE, SOTO, JORGE, LUIS, DALRYMPLE, DAVID, C, FREMUTH, ALEXANDER, DIETMAR, STRAUSS
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Beschreibung
Zusammenfassung:A method for recovering acid from a feed mixture comprising acid, hydrocarbons and water, the method comprising: processing said mixture using a first polymeric membrane to form a first retentate containing a substantially greater concentration of hydrocarbons than said feed mixture and a first permeate containing a substantially greater concentration of acid and water than said mixture, said first polymeric membrane being selectively permeable to the acid and water over the hydrocarbons found in the mixture, and recovering the first permeate; said first permeate can be processed further using a second water reduction mean to form a first stream containing a substantially greater concentration of acid than said first permeate and a second stream containing a substantially greater concentration of water than said first permeate, said water reduction step may be a second polymeric membrane being selectively permeable to the water over the acid in said first permeate; and recovering said second stream or retentate.