Patent · US Active

Method of fabricating layered nano-carbonate used for medium-high temperature CO2 sorbent

US8207086B2 · kind B2 · utility

4Cited by
1References
10Claims
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Key dates

Filing dateApr 7, 2010
Grant dateJun 26, 2012
Priority date
Expiry dateAug 17, 2030

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02P20/151
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

A technique of fabricating a medium-high temperature CO2 sorbent of layered nano-carbonate is provided. A CO2 sorbent is fabricated. The sorbent captures CO2 at a medium-high temperature above 600° C. Calcium acetate is introduced for making a nano-scale layered double hydroxide (LDH). The layered structure is used for templated synthesis. The sorbent has an initial conversion rate above 90%; and the conversion rate remains the same even after 100 times of carbonation/de-carbonation cycles.

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