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Regenerable sorbents for CO2 capture from moderate and high temperature gas streams

  • US 7,314,847 B1
  • Filed: 10/21/2004
  • Issued: 01/01/2008
  • Est. Priority Date: 10/21/2004
  • Status: Expired due to Fees
First Claim
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1. A process for producing sorbents to capture carbon dioxide from gas streams, the process comprising:

  • a) homogeneously mixing a reactive substrate selected from the group consisting of an alkali metal oxide, alkali metal hydroxide, alkaline earth metal oxide, alkaline earth metal hydroxide, alkali titanate, alkali zirconate, alkali silicate and combinations thereof with a binder;

    b) adding water to the mixture to form granules;

    c) drying the mixture at 100°

    C. for 1 hour;

    d) calcining the mixture at 700°

    C. for 2 hours; and

    ,e) placing the mixture in a container permeable to a gas stream to remove carbon dioxide.

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