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Title: Internal gas and liquid distributor for electrodeionization device

Patent ·
OSTI ID:1253369

The present invention provides a resin-wafer electrodeionization (RW-EDI) apparatus including cathode and anode electrodes separated by a plurality of porous solid ion exchange resin wafers, which when in use are filled with an aqueous fluid. The apparatus includes one or more wafers comprising a basic ion exchange medium, and preferably includes one or more wafers comprising an acidic ion exchange medium. The wafers are separated from one another by ion exchange membranes. The gas and aqueous fluid are introduced into each basic wafer via a porous gas distributor which disperses the gas as micro-sized bubbles laterally throughout the distributor before entering the wafer. The fluid within the acidic and/or basic ion exchange wafers preferably includes, or is in contact with, a carbonic anhydrase (CA) enzyme or inorganic catalyst to facilitate conversion of bicarbonate ion to carbon dioxide within the acidic medium.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-06CH11357
Assignee:
UCHICAGO ARGONNE, LLC (Chicago, IL)
Patent Number(s):
9,339,764
Application Number:
13/780,019
OSTI ID:
1253369
Resource Relation:
Patent File Date: 2013 Feb 28
Country of Publication:
United States
Language:
English

References (11)

Biphasic foam blood mass transfer device patent December 1995
Enzyme systems for gas processing patent November 2000
Electrodeionization substrate, and device for electrodeionization treatment patent December 2002
Electrodeionization method patent September 2004
Single-stage separation and esterification of cation salt carboxylates using electrodeionization patent November 2006
Porous solid ion exchange wafer for immobilizing biomolecules patent December 2007
Electronically and ionically conductive porous material and method for manufacture of resin wafers therefrom patent November 2008
Devices using resin wafers and applications thereof patent March 2009
Disposable bioreactor systems and methods patent December 2009
Novel enzyme compositions for removing carbon dioxide from a mixed gas patent-application January 2008
Retention of counterions in the separative bioreactor patent-application August 2008