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CO 2 adsorption and desorption performance of waste ion‐exchange resin‐based activated carbon
Author(s) -
Wei Mengqi,
Yu Qingbo,
Duan Wenjun,
Zuo Zongliang,
Hou Limin,
Dai Jinjie
Publication year - 2018
Publication title -
environmental progress and sustainable energy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.495
H-Index - 66
eISSN - 1944-7450
pISSN - 1944-7442
DOI - 10.1002/ep.12743
Subject(s) - adsorption , activated carbon , microporous material , desorption , volume (thermodynamics) , ion exchange , chemical engineering , bet theory , chemistry , specific surface area , carbon fibers , materials science , ion , catalysis , organic chemistry , composite material , composite number , thermodynamics , physics , engineering
Activated carbons were produced using waste ion‐exchange resin, and the effects of different activation temperatures were researched in this article. The experimental results indicate that the activated carbons are microporous carbons. The BET specific surface area and total volume increase at first and then decrease as the activation temperature increases. The maximum adsorption capacity is 81.24 mg/g at 30 ° C. A higher adsorption temperature and lower CO 2 partial pressure resulted in a lower CO 2 adsorption capacity. After 20 adsorption–desorption cycles, the CO 2 adsorption capacity decreases slightly, and the regeneration degree is always at a high level, which indicates that the activated carbons can be used for a long time. The results in this work suggest that waste ion‐exchange resin‐based activated carbons show great potential as adsorbents for postcombustion CO 2 capture . © 2017 American Institute of Chemical Engineers Environ Prog, 37: 703–711, 2018