ELECTROCHEMICAL SYSTEMS AND METHODS FOR OPERATING ELECTROCHEMICAL CELL WITH AN ACIDIC ANOLYTE

Title:

ELECTROCHEMICAL SYSTEMS AND METHODS FOR OPERATING ELECTROCHEMICAL CELL WITH AN ACIDIC ANOLYTE

Document Type and Number:

WIPO Patent Application WO/2012/048280

Kind Code:

A3

Abstract:

An electrochemical cell (50) having a cation-conductive ceramic membrane (56) and an acidic anolyte. Generally, the cell (50) includes a catholyte compartment (54) and an anolyte compartment (52) that are separated by a cation-conductive membrane (56). While the catholyte compartment (54) houses a primary cathode (60), the anolyte compartment (52) houses an anode (58) and a secondary cathode (62). In some cases, a current is passed through the electrodes to cause the secondary cathode (62) to evolve hydrogen gas. In other cases, hydrogen peroxide is channeled between the secondary cathode (62) and the membrane (56) to form hydroxyl ions. In yet other cases, the cell (50) includes a diffusion membrane disposed between the secondary cathode (62) and the anode (58). In each of the aforementioned cases, the cell functions to maintain the pH of a fluid contacting the membrane (56) at an acceptably high level.

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Inventors:

BHAVARAJU SAI (US)
JOSHI ASHOK (US)

Application Number:

PCT/US2011/055458

Publication Date:

July 26, 2012

Filing Date:

October 07, 2011

Export Citation:

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Assignee:

CERAMATEC INC (US)
BHAVARAJU SAI (US)
JOSHI ASHOK (US)

International Classes:

C25B9/19

Foreign References:

US4308117A	1981-12-29
US20080245671A1	2008-10-09
US4213833A	1980-07-22

Other References: