Calera Corporation

Philip Brian Tuet

Brent Richard Constantz

Kasra Farsad

Miguel Fernandez

Cecily Ryan

Sidney Omelon

Ryan J Gilliam

Allen J Bard

Andrew Youngs

J Douglas Way

Valentin Decker

Robert S Danziger

Donald W Kirk

Katharine Geramita

Laurence Clodic

Paulo Monteiro

Gordon E Brown, Jr

Methods of sequestering carbon dioxide (CO) are provided. Aspects of the methods include precipitating a storage stable carbon dioxide sequestering product from an alkaline-earth-metal-containing water and then disposing of the product, e.g., by placing the product in a disposal location or using the product as a component of a manufactured composition. Also provided are systems for practicing methods of the invention.

Methods of sequestering CO2

[object Object]

Provided are methods for producing carbonate-containing compositions comprising silicon-based material (e.g., pozzolanic material) from a source of carbon dioxide, a divalent cation-containing solution, and a source of proton-removing agents. In such methods, divalent cations of the divalent cation-containing solution are provided by digestion of material comprising metal silicates. Also provided are methods for producing carbonate-containing compositions comprising little or no silicon-based material. In such methods, silicon-based material (e.g., silica, unreacted or undigested silicates, aluminosilicates, etc.) may be separated and processed separately from carbonate-containing compositions. Silicon-based material and carbonate-containing material may be blended at a later stage to produce a pozzolanic material, which may be further processed and blended with, for example, Portland cement.

Production of carbonate-containing compositions from material comprising metal silicates

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Milpitas, CA, United States of America

Philip Brian Tuet