Effect of different organic compounds on the preparation of CaO-based CO<sub>2</sub> sorbents derived from wet mixing combustion synthesis

Tong Luo; Shaolong Liu; Cong Luo; Xiaolei Qi; Bowen Lu; Liqi Zhang

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Effect of different organic compounds on the preparation of CaO-based CO₂ sorbents derived from wet mixing combustion synthesis

Energy Science and Technology | Updated：2026-01-06

- Effect of different organic compounds on the preparation of CaO-based CO₂ sorbents derived from wet mixing combustion synthesis
- Chinese Journal of Chemical Engineering Vol. 36, Issue 8, Pages: 157-169(2021)
- Affiliations：
  
  State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology,Wuhan,China,430074
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2021
- Accepted：
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sorbents derived from wet mixing combustion synthesis[J]. 中国化学工程学报, 2021, 36(8): 157-169.
DOI：

sorbents derived from wet mixing combustion synthesis[J]. 中国化学工程学报, 2021, 36(8): 157-169. DOI：

摘要

Abstract

CaO based sorbents have great potential for commercial use to capture CO

of power plants. In the demand of producing sorbents with better cyclic performance

CaO-based sorbents derived from different kinds of calcium precursors

containing calcium carbonate (CC-CaO)

calcium gluconate monohydrate (CG-CaO)

calcium citrate (CCi-CaO) and calcium acetate monohydrate (CA-CaO)

were tested cyclically and compared using simultaneous thermal analyzer (STA). And further study was conducted on the sorbents modified with citric acid monohydrate and 50% gluconic acid solution by wet mixing combustion synthesis. The modified sorbents showed better performance and higher pore parameters as well as porous microstructure with more organic acid added. After 20 cycles of carbonation and calcination

the C2CCi8 (CaO:citric acid=2:8 by mass ratio) and C2G8 (CaO:gluconic acid=2:8 by mass ratio) sorbent possess CO

capture capacity of 0.45 g·g

-1

(g CO

per g sorbents) and 0.52 g·g

-1

respectively. The citric acid was more effective for modification than gluconic acid for extended 50 cycles. Furthermore

good linear relationship

between CaO conversion and specific surface area as well as pore volume were determined

of which the specific surface area showed closer correlation with CaO conversion.

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Effect of different organic compounds on the preparation of CaO-based CO2 sorbents derived from wet mixing combustion synthesis

DOI：

摘要

Abstract

关键词

Keywords

references

Effect of different organic compounds on the preparation of CaO-based CO₂ sorbents derived from wet mixing combustion synthesis