Adsorption separation of CO2 from flue gas by hyperbranched solid-amine

Yamin Liu; Jingjin Shi; Jie Chen; Yao Shi

Adsorption separation of CO₂ from flue gas by hyperbranched solid-amine

Yamin Liu, Jingjin Shi, Jie Chen, Yao Shi

Zhejiang University

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

Hyperbranched solid amine was prepared with KIT-6 type mesoporous silica, which was modified by tetraethylenepentamine (TEPA) using post-synthetic impregnation. The adsorption behavior of CO₂ on KIT-6(TEPA) was investigated using an adsorption column. The adsorption capacity of KIT-6(TEPA) for CO₂ increased with temperature at 303-343 K, but decreased as temperature increased at 343-353 K. The maximum adsorption capacity is 3.1 mmol g^-1 at 343 K. The mechanism of CO₂ adsorption on KIT-6(TEPA) is mainly chemical adsorption. The adsorption capacity is improved by moisture. It reaches 3.5 mmol·g^-1 in the presence of 12% water. The adsorption capacity is maintained after 20 cycles of adsorption and regeneration, indicating that the KIT-6(TEPA) is stable in a prolonged cyclic operation. Experimental breakthrough curves are fitted with a deactivation model, giving good agreement with experimental data.

Original language	English
Pages (from-to)	736-742
Number of pages	7
Journal	Huagong Xuebao/Journal of Chemical Industry and Engineering (China)
Volume	62
Issue number	3
State	Published - Mar 2011
Externally published	Yes

Keywords

Adsorption
Carbon dioxide
KIT-6
Solid amine
Tetraethylenepentamine

Cite this

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title = "Adsorption separation of CO2 from flue gas by hyperbranched solid-amine",

abstract = "Hyperbranched solid amine was prepared with KIT-6 type mesoporous silica, which was modified by tetraethylenepentamine (TEPA) using post-synthetic impregnation. The adsorption behavior of CO2 on KIT-6(TEPA) was investigated using an adsorption column. The adsorption capacity of KIT-6(TEPA) for CO2 increased with temperature at 303-343 K, but decreased as temperature increased at 343-353 K. The maximum adsorption capacity is 3.1 mmol g-1 at 343 K. The mechanism of CO2 adsorption on KIT-6(TEPA) is mainly chemical adsorption. The adsorption capacity is improved by moisture. It reaches 3.5 mmol·g-1 in the presence of 12% water. The adsorption capacity is maintained after 20 cycles of adsorption and regeneration, indicating that the KIT-6(TEPA) is stable in a prolonged cyclic operation. Experimental breakthrough curves are fitted with a deactivation model, giving good agreement with experimental data.",

keywords = "Adsorption, Carbon dioxide, KIT-6, Solid amine, Tetraethylenepentamine",

author = "Yamin Liu and Jingjin Shi and Jie Chen and Yao Shi",

year = "2011",

month = mar,

language = "英语",

volume = "62",

pages = "736--742",

journal = "Huagong Xuebao/Journal of Chemical Industry and Engineering (China)",

issn = "0438-1157",

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TY - JOUR

T1 - Adsorption separation of CO2 from flue gas by hyperbranched solid-amine

AU - Liu, Yamin

AU - Shi, Jingjin

AU - Chen, Jie

AU - Shi, Yao

PY - 2011/3

Y1 - 2011/3

N2 - Hyperbranched solid amine was prepared with KIT-6 type mesoporous silica, which was modified by tetraethylenepentamine (TEPA) using post-synthetic impregnation. The adsorption behavior of CO2 on KIT-6(TEPA) was investigated using an adsorption column. The adsorption capacity of KIT-6(TEPA) for CO2 increased with temperature at 303-343 K, but decreased as temperature increased at 343-353 K. The maximum adsorption capacity is 3.1 mmol g-1 at 343 K. The mechanism of CO2 adsorption on KIT-6(TEPA) is mainly chemical adsorption. The adsorption capacity is improved by moisture. It reaches 3.5 mmol·g-1 in the presence of 12% water. The adsorption capacity is maintained after 20 cycles of adsorption and regeneration, indicating that the KIT-6(TEPA) is stable in a prolonged cyclic operation. Experimental breakthrough curves are fitted with a deactivation model, giving good agreement with experimental data.

AB - Hyperbranched solid amine was prepared with KIT-6 type mesoporous silica, which was modified by tetraethylenepentamine (TEPA) using post-synthetic impregnation. The adsorption behavior of CO2 on KIT-6(TEPA) was investigated using an adsorption column. The adsorption capacity of KIT-6(TEPA) for CO2 increased with temperature at 303-343 K, but decreased as temperature increased at 343-353 K. The maximum adsorption capacity is 3.1 mmol g-1 at 343 K. The mechanism of CO2 adsorption on KIT-6(TEPA) is mainly chemical adsorption. The adsorption capacity is improved by moisture. It reaches 3.5 mmol·g-1 in the presence of 12% water. The adsorption capacity is maintained after 20 cycles of adsorption and regeneration, indicating that the KIT-6(TEPA) is stable in a prolonged cyclic operation. Experimental breakthrough curves are fitted with a deactivation model, giving good agreement with experimental data.

KW - Adsorption

KW - Carbon dioxide

KW - KIT-6

KW - Solid amine

KW - Tetraethylenepentamine

UR - http://www.scopus.com/inward/record.url?scp=79955405960&partnerID=8YFLogxK

M3 - 文章

AN - SCOPUS:79955405960

SN - 0438-1157

VL - 62

SP - 736

EP - 742

JO - Huagong Xuebao/Journal of Chemical Industry and Engineering (China)

JF - Huagong Xuebao/Journal of Chemical Industry and Engineering (China)

IS - 3

ER -

Adsorption separation of CO₂ from flue gas by hyperbranched solid-amine

Abstract

Keywords

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