Spiral wound bipolar electrodialysis cell

US12157090B2 · kind B2 · utility

Assignee

• Vetco Gray Scandinavia AS · NO

Inventors

• Zijun Xia · Shanghai, CN
• Chengqian Zhang · Lo Wu, CN
• Wujun Rong · Shanghai, CN
• Yongchang Zheng · Westborough, US
• Bruce Batchelder · North Reading, US
• John H. Barber · Fergus, CA
• Lei Cao · 龙王头村, CN
• Hua Wang · Niskayuna, US
• David Michael STACHERA · Guelph, CA
• Bo Yan · Shanghai, CN

Key dates

• Filing date: Mar 1, 2017
• Grant date: Dec 3, 2024
• Expiry date: Jan 23, 2040

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C02F2103/08
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

An electrodialysis cell includes a housing defining an internal chamber, a core positioned within the internal chamber, a first electrode positioned in the internal chamber adjacent the housing, a second electrode coupled to the core and spaced from the first electrode, and a membrane assembly positioned between the first and second electrodes in a spiral wound configuration. The housing includes an inlet end for receiving a feed fluid and an outlet end in fluid communication with the inlet end. The membrane assembly includes a plurality of ion exchange membranes spaced from each other to define a plurality of fluid channels between the inlet and outlet ends.