DOI: 10.1016/j.jcou.2019.02.019
Scopus记录号: 2-s2.0-85062693580
论文题名: Synthesis, characterization and CO 2 adsorption performance of a thermosensitive solid amine adsorbent
作者: Liu F. ; Fu W. ; Chen S.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2019
卷: 31 起始页码: 98
结束页码: 105
语种: 英语
英文关键词: CO 2 capture
; N-Isopropylacrylamide
; Polyethyleneimine
; Thermosensitive
Scopus关键词: Acrylic monomers
; Amides
; Carbon dioxide
; Energy utilization
; Ethylene
; Ethylene glycol
; Free radicals
; Gas adsorption
; Gas chromatography
; Suspensions (fluids)
; CO2 capture
; Ethylene glycol diglycidyl ethers
; Fixed-bed adsorption systems
; Inverse suspension polymerization
; N- isopropylacrylamide
; Poly (n isopropylacrylamide)
; Polyethyleneimine
; Thermo sensitive
; Free radical polymerization
英文摘要: A thermosensitive solid amine adsorbent (PNIPAAm@PEIs) was developed by an inverse suspension polymerization of polyethyleneimine (PEI) and ethylene glycol diglycidyl ether (EDGE), followed by further functionalizing the copolymer with N-isopropylacrylamide (NIPAAm) through free radical polymerization reaction. Different characterization techniques were used to analyze the chemical structure and surface functional groups of the adsorbents. The adsorption behavior of CO 2 on the adsorbent was evaluated in a fixed-bed adsorption system equipped with gas chromatography. It was found that a high temperature had a negative impact on CO 2 adsorption due to the CO 2 /amine groups reaction was exothermic. The existence of water had a growth-promoting effect on CO 2 adsorption capacity because of its improvement of the amine utilization efficiency. Highest adsorption amount of 3.15 mmol/g for PNIPAAm@PEIs was obtained at 10 °C under wet condition. Moreover, the CO 2 adsorption (25 °C) and desorption (60 °C) behavior showed that PNIPAAm@PEIs could desorb CO 2 more efficiently at 60 °C than that of polyethyleneimine sphere (PEIs) due to the temperature-responsive property of poly(N-isopropylacrylamide). This study revealed that introduction of thermosensitive poly(N-isopropylacrylamide) into solid amine could effectively reduce the energy consumption when regeneration of adsorbents. © 2019 Elsevier Ltd. All rights reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/117282
Appears in Collections: 气候变化与战略
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Recommended Citation:
Liu F.,Fu W.,Chen S.. Synthesis, characterization and CO 2 adsorption performance of a thermosensitive solid amine adsorbent[J]. Journal of CO2 Utilization,2019-01-01,31