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Title: Separation process using pervaporation and dephlegmation

Abstract

A process for treating liquids containing organic compounds and water. The process includes a pervaporation step in conjunction with a dephlegmation step to treat at least a portion of the permeate vapor from the pervaporation step. The process yields a membrane residue stream, a stream enriched in the more volatile component (usually the organic) as the overhead stream from the dephlegmator and a condensate stream enriched in the less volatile component (usually the water) as a bottoms stream from the dephlegmator. Any of these may be the principal product of the process. The membrane separation step may also be performed in the vapor phase, or by membrane distillation.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
Membrane Technology and Research, Inc., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1174920
Patent Number(s):
6755975
Application Number:
10/170,333
Assignee:
Membrane Technology and Research, Inc. (Menlo Park, CA)
Patent Classifications (CPCs):
C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
DOE Contract Number:  
FG03-98ER82616
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Vane, Leland M., Mairal, Anurag P., Ng, Alvin, Alvarez, Franklin R., and Baker, Richard W. Separation process using pervaporation and dephlegmation. United States: N. p., 2004. Web.
Vane, Leland M., Mairal, Anurag P., Ng, Alvin, Alvarez, Franklin R., & Baker, Richard W. Separation process using pervaporation and dephlegmation. United States.
Vane, Leland M., Mairal, Anurag P., Ng, Alvin, Alvarez, Franklin R., and Baker, Richard W. Tue . "Separation process using pervaporation and dephlegmation". United States. https://www.osti.gov/servlets/purl/1174920.
@article{osti_1174920,
title = {Separation process using pervaporation and dephlegmation},
author = {Vane, Leland M. and Mairal, Anurag P. and Ng, Alvin and Alvarez, Franklin R. and Baker, Richard W.},
abstractNote = {A process for treating liquids containing organic compounds and water. The process includes a pervaporation step in conjunction with a dephlegmation step to treat at least a portion of the permeate vapor from the pervaporation step. The process yields a membrane residue stream, a stream enriched in the more volatile component (usually the organic) as the overhead stream from the dephlegmator and a condensate stream enriched in the less volatile component (usually the water) as a bottoms stream from the dephlegmator. Any of these may be the principal product of the process. The membrane separation step may also be performed in the vapor phase, or by membrane distillation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {6}
}

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Works referenced in this record:

Separation of volatile organic compounds from aqueous mixtures by pervaporation with multi-stage condensation
journal, May 1996


Improved ethylene and LPG recovery through dephlegmator technology
journal, December 1987


Mathematical model for process design and simulation of dephlegmators (partial condensers) for binary mixtures
journal, August 1987


Zeolite membranes – state of their development and perspective
journal, July 2000