CO2 mineralization in produced and industrial effluent water by pH-swing carbonation

US11230473B2 · kind B2 · utility

Assignee

• The Regents of the University of California · US

Inventors

• Gaurav Sant · Los Angeles, US
• Hyukmin Kweon · Los Angeles, US
• Erika Callagon La Plante · Los Angeles, US
• Dante Simonetti · Middleton, US

Key dates

• Filing date: Jun 29, 2018
• Grant date: Jan 25, 2022
• Expiry date: Jun 29, 2038

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/129
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Effluent water is combined with carbon dioxide sourced from a carbon dioxide-containing emission stream to produce a reaction solution. The pH of the reaction solution is controlled to induce precipitation of a carbonate salt from the reaction solution.