Methods and systems for capturing and storing carbon dioxide

US10456744B2 · kind B2 · utility

Assignee

• The Trustees of Columbia University in the City of New York · US

Inventors

• Ah-Hyung Alissa Park · New York, US
• Edward J. Swanson · Salt Lake City, US
• Huangjing Zhao · Shanghai, CN
• Greeshma GADIKOTA · New York, US
• Patrick V. Brady · Albuquerque, US
• Tushar Patel · San Francisco, US
• Scott Banta · Fairfield, US

Key dates

• Filing date: Feb 3, 2017
• Grant date: Oct 29, 2019
• Expiry date: Jun 25, 2037

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/151
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Methods and systems for capturing and storing carbon dioxide are disclosed. In some embodiments, the methods include the following: mixing materials including magnesium or calcium with one or more acids and chelating agents to form a magnesium or calcium-rich solvent; using the organic acids derived from biogenic wastes as acids or chelating agents; generating carbonate ions by reacting a gas including carbon dioxide with a carbonic anhydrase biocatalyst; reacting the solvent with the carbonate ions to form magnesium or calcium carbonates; recycling a solution containing the biocatalyst after forming magnesium or calcium carbonates for re-use in the generating step; using the magnesium and calcium carbonates as carbon neutral filler materials and using the silica product as green filler materials or inexpensive absorbents.