NON-CEMENTITIOUS COMPOSITIONS COMPRISING CO2 SEQUESTERING ADDITIVES

• US 20100239487A1
• Filed: 05/28/2010
• Published: 09/23/2010
• Est. Priority Date: 10/31/2008
• Status: Abandoned Application

• Current Assignee: Calera Corporation
• Original Assignee: Calera Corporation
• Inventors: Constantz, Brent, Youngs, Andrew
• Application Number:
  US12/790,317
• Publication Number:
  US 20100239487A1
• Time in Patent Office: Days
• US Class Current: 423/430
• CPC Class Codes: B01D 2251/40 Alkaline earth metal or magnesium compounds
• CPC Class Codes: B01D 2257/504 Carbon dioxide
• CPC Class Codes: B01D 53/1418 Recovery of products
• CPC Class Codes: B01D 53/78 with gas-liquid contact
• CPC Class Codes: C01B 32/50 Carbon dioxide
• CPC Class Codes: C01F 11/18 Carbonates
• CPC Class Codes: C01F 5/24 Magnesium carbonates
• CPC Class Codes: C04B 14/26 Carbonates
• CPC Class Codes: C04B 26/02 Macromolecular compounds
• CPC Class Codes: C08K 3/26 Carbonates; Bicarbonates
• CPC Class Codes: C08L 21/00 Compositions of unspecified rubbers
• CPC Class Codes: Y02P 20/151 Reduction of greenhouse gas [GHG] emissions, e.g. CO2
• CPC Class Codes: Y10T 436/23 Carbon containing

Abstract

Non-cementitious CO₂ sequestering compositions are provided. The compositions of the invention include a CO₂ sequestering additive, e.g., a CO₂ sequestering carbonate composition. Additional aspects of the invention include methods of making and using the non-cementitious CO₂ sequestering compositions.

Claims

1. A method of sequestering carbon dioxide, the method comprising:

precipitating a CO₂ sequestering carbonate compound composition from an alkaline-earth-metal-containing water, wherein the carbonate compound composition comprises carbon that was released in the form of CO₂ from the combustion of fuel; and

producing a CO₂ sequestering additive comprising the carbonate compound composition; and

producing a non-cementitious composition comprising the CO₂ sequestering additive.

2. The method according to claim 1, wherein the alkaline-earth-metal-containing water is contacted to an industrial waste stream prior to the precipitating step.