Treatment of evaporator condensates by pervaporation

Patent · Mon Jan 01 00:00:00 EST 1990

OSTI ID:867510

Blume, Ingo ^[1]; Baker, Richard W ^[2]

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1. Hengelq, NL
2. Palo Alto, CA

A pervaporation process for separating organic contaminants from evaporator condensate streams is disclosed. The process employs a permselective membrane that is selectively permeable to an organic component of the condensate. The process involves contacting the feed side of the membrane with a liquid condensate stream, and withdrawing from the permeate side a vapor enriched in the organic component. The driving force for the process is the in vapor pressure across the membrane. This difference may be provided for instance by maintaining a vacuum on the permeate side, or by condensing the permeate. The process offers a simple, economic alternative to other separation techniques.

• Research Organization: MEMBRANE TECHNOLOGY & RES INC
• DOE Contract Number: AC03-83ER13054
• Assignee: Membrane Technology & Research, Inc. (Menlo Park, CA)
• Patent Number(s): US 4952751
• OSTI ID: 867510
• Country of Publication: United States
• Language: English

Related Subjects

treatment
evaporator
condensates
pervaporation
process
separating
organic
contaminants
condensate
streams
disclosed
employs
permselective
membrane
selectively
permeable
component
involves
contacting
feed
liquid
stream
withdrawing
permeate
vapor
enriched
driving
force
pressure
difference
provided
instance
maintaining
vacuum
condensing
offers
simple
economic
alternative
separation
techniques
separation techniques
involves contacting
organic contaminant
process involves
vapor pressure
organic contaminants
driving force
process employs
selectively permeable
organic component
separating organic
pervaporation process
liquid condensate
separation technique
selective membrane
/585/208/210/426/