Electrolyte chemistry control in electrodialysis processing
Patent
·
OSTI ID:1415031
Methods for controlling electrolyte chemistry in electrodialysis units having an anode and a cathode each in an electrolyte of a selected concentration and a membrane stack disposed therebetween. The membrane stack includes pairs of cationic selective and anionic membranes to segregate increasingly dilute salts streams from concentrated salts stream. Electrolyte chemistry control is via use of at least one of following techniques: a single calcium exclusionary cationic selective membrane at a cathode cell boundary, an exclusionary membrane configured as a hydraulically isolated scavenger cell, a multivalent scavenger co-electrolyte and combinations thereof.
- Research Organization:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC26-07NT42677
- Assignee:
- Gas Technology Institute (Des Plaines, IL)
- Patent Number(s):
- 9,849,426
- Application Number:
- 14/616,262
- OSTI ID:
- 1415031
- Resource Relation:
- Patent File Date: 2015 Feb 06
- Country of Publication:
- United States
- Language:
- English
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