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Increasing Porosity of Molded Calcium‐Based Sorbents by Glucose Templating for Cyclic CO 2 Capture
Author(s) -
Xu Yongqing,
Ding Haoran,
Luo Cong,
Zheng Ying,
Li Xiaoshan,
Xu Yang,
Zhang Zewu,
Zhao Weixian,
Zhang Liqi
Publication year - 2018
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201700527
Subject(s) - sorbent , porosity , chemical engineering , materials science , extrusion , attrition , calcium looping , microstructure , adsorption , chemistry , composite material , organic chemistry , medicine , dentistry , engineering
Abstract With the aim to enhance the CO 2 capture capacity and anti‐attrition property of CaO‐based sorbents simultaneously, a novel CaO‐based sphere was prepared by extrusion‐spheronization using Ca(OH) 2 powder with glucose templating. The CO 2 capture characteristics and attrition resistance property of the sorbent were examined and the microstructure of the sorbents was analyzed. The results demonstrate that the obtained spherical sorbents exhibit an outstanding anti‐attrition performance compared to limestone sorbent. After 100 cycles, all of the templated sorbents hold a CO 2 capture capacity of more than one time higher than that of limestone. The optimum templating rate of glucose in the sorbent was 1–5 wt %.