Improvement of CO<sub>2</sub> capture performance of calcium-based absorbent modified with palygorskite

Liyuan Shan; Hui Li; Binglu Meng; Youhai Yu; Yonggang Min

doi:10.1016/j.cjche.2016.05.021

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Improvement of CO₂ capture performance of calcium-based absorbent modified with palygorskite

Energy, Resources and Environmental Technology | Updated：2026-01-06

- Improvement of CO₂ capture performance of calcium-based absorbent modified with palygorskite
- Chinese Journal of Chemical Engineering Vol. 24, Issue 9, Pages: 1283-1289(2016)
- Affiliations：
  
  1. College of Material and Mineral Resource, Xi'an University of Architecture and Technology,Xi'an,China,710055
  2. Shaanxi Techno-Institute of Recycling Economy,Xi'an,China,710055
  3. Xi'an Institute of Optics and Precision Mechanics of Chinese Academy of Science,Xi'an,China,710119
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2016.05.021
  CLC： 10.1016/j.cjche.2016.05.021
- Published：2016
- Accepted：
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capture performance of calcium-based absorbent modified with palygorskite[J]. , 2016, 24(9): 1283-1289.
DOI：

capture performance of calcium-based absorbent modified with palygorskite[J]. , 2016, 24(9): 1283-1289. DOI： 10.1016/j.cjche.2016.05.021.

摘要

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Abstract

Limestone can be used for CO

capture and sequestration (CCS) in flue gas effectively. However

its CCS capability will dramatically decline after several cycles due to the surface "sintering". In this work

the limestone was modified with palygorskite to reduce sintering phenomenon between the absorbent particles during the CCS process and the carbonation rate of the limestone can be enhanced effectively. Palygorskite is a natural mineral with nano-fibrous structure which can reduce the mutual contact of limestone particles during the CCS process. The results were detected by TGA

SEM

MIP

FTIR and particle size analyzer respectively. The best CO

capture performance of modified absorbent was 13.11% improvement with only 5 wt% palygorskite added during the CCS process after 15 cycles compared with natural absorbent. It was found that excellent microscopic structures of absorbent modified with palygorskite was created

and the surface sintering was postponed leading to CO

capture performance enhanced under the s

ame conditions.

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Improvement of CO2 capture performance of calcium-based absorbent modified with palygorskite

DOI：10.1016/j.cjche.2016.05.021

摘要

Abstract

关键词

Keywords

references

Improvement of CO₂ capture performance of calcium-based absorbent modified with palygorskite