含乙醇胺三元低共熔溶剂吸收CO2的研究

O647.3; 以氯化胆碱(ChCl)、甘油(Gly)、乙醇胺(MEA)为原料,制备了 ChCl-Gly-MEA三元低共熔溶剂(DES),研究了其在室温和常压下对CO2的吸收性能.在ChCl、Gly、MEA具有不同物质的量之比(1∶1∶4、1∶1∶6、1∶1∶8、1∶1∶10)的4种样品中,当ChCl、Gly、MEA物质的量之比为1∶1∶10时,CO2的吸收量最大,每克DES中CO2的吸收量为0.18 g.CO2流速越高、含水量越低,则ChCl-Gly-MEA三元DES对CO2的吸收量越大.ChCl-Gly-MEA三元DES对CO2的吸收机理同时存在物理吸收和化学吸收,MEA的加入会显著提高其...

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Published in华东理工大学学报(自然科学版) Vol. 50; no. 2; pp. 208 - 213
Main Authors 李秀婷, 邵斌, 练昕宜, 韦凯媛, 李天阳子, 钟缪亦兰, 胡军, 王小永
Format Journal Article
LanguageChinese
Published 华东理工大学化学与分子工程学院,上海 200237 01.05.2024
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ISSN1006-3080
DOI10.14135/j.cnki.1006-3080.20230109001

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Abstract O647.3; 以氯化胆碱(ChCl)、甘油(Gly)、乙醇胺(MEA)为原料,制备了 ChCl-Gly-MEA三元低共熔溶剂(DES),研究了其在室温和常压下对CO2的吸收性能.在ChCl、Gly、MEA具有不同物质的量之比(1∶1∶4、1∶1∶6、1∶1∶8、1∶1∶10)的4种样品中,当ChCl、Gly、MEA物质的量之比为1∶1∶10时,CO2的吸收量最大,每克DES中CO2的吸收量为0.18 g.CO2流速越高、含水量越低,则ChCl-Gly-MEA三元DES对CO2的吸收量越大.ChCl-Gly-MEA三元DES对CO2的吸收机理同时存在物理吸收和化学吸收,MEA的加入会显著提高其化学吸收作用.经5次吸收-解吸-再吸收后,ChCl-Gly-MEA三元DES仍保持97.3%的再生效率,说明ChCl-Gly-MEA三元DES具有良好的再生性.
AbstractList O647.3; 以氯化胆碱(ChCl)、甘油(Gly)、乙醇胺(MEA)为原料,制备了 ChCl-Gly-MEA三元低共熔溶剂(DES),研究了其在室温和常压下对CO2的吸收性能.在ChCl、Gly、MEA具有不同物质的量之比(1∶1∶4、1∶1∶6、1∶1∶8、1∶1∶10)的4种样品中,当ChCl、Gly、MEA物质的量之比为1∶1∶10时,CO2的吸收量最大,每克DES中CO2的吸收量为0.18 g.CO2流速越高、含水量越低,则ChCl-Gly-MEA三元DES对CO2的吸收量越大.ChCl-Gly-MEA三元DES对CO2的吸收机理同时存在物理吸收和化学吸收,MEA的加入会显著提高其化学吸收作用.经5次吸收-解吸-再吸收后,ChCl-Gly-MEA三元DES仍保持97.3%的再生效率,说明ChCl-Gly-MEA三元DES具有良好的再生性.
Abstract_FL Ternary deep eutectic solvents(DES)comprising choline chloride(ChCl),glycerol(Gly)and ethanolamine(MEA)with different molar ratios were prepared.The CO2 absorption ability of the ternary DES was investigated at room temperature and under atmospheric pressure.Among four ternary DES samples prepared with different molar ratios,a ChCl-Gly-MEA(1∶1∶10)ternary DES was found to absorb the most CO2 at a capacity of 0.18 g CO2(DES per gram)at 298 K and 101.3 kPa.The experimental results showed that the CO2 absorption capacity of ChCl-Gly-MEA(1∶1∶10)ternary DES increased with an increase in gas flow rate and a decrease in water content.The gas flow rate improved the mass transfer efficiency of CO2 in the ternary DES system,and shortened the time required for CO2 absorption to reach equilibrium.However,the addition of water could weaken the hydrogen bonding interaction among the three components in the DES system.Results from Fourier transform infrared(FT-IR)and nuclear magnetic resonance(NMR)spectroscopy indicated that CO2 interacted with the amino groups in DES to form carbamates.The absorption of CO2 by ChCl-Gly-MEA underwent both physical and chemical absorption,and the chemical absorption was significantly enhanced by the addition of MEA.A recovery experiment showed that no obvious loss in CO2 absorption was detected after five absorption/desorption cycles with an absorption rate of 97.3%being retained.
Author 练昕宜
钟缪亦兰
胡军
邵斌
韦凯媛
李秀婷
王小永
李天阳子
AuthorAffiliation 华东理工大学化学与分子工程学院,上海 200237
AuthorAffiliation_xml – name: 华东理工大学化学与分子工程学院,上海 200237
Author_FL LI Xiuting
WEI Kaiyuan
LI Tianyangzi
WANG Xiaoyong
HU Jun
SHAO Bin
LIAN Xinyi
ZHONG Miuyilan
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  fullname: WEI Kaiyuan
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  fullname: ZHONG Miuyilan
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  fullname: HU Jun
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  fullname: WANG Xiaoyong
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DocumentTitle_FL CO2 Absorption by Ethanolamine-Based Ternary Deep Eutectic Solvents
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Keywords carbon dioxide
physical absorption
再生性
低共熔溶剂(DES)
reproducibility
CO2
化学吸收
deep eutectic solvent(DES)
物理吸收
chemical absorption
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PublicationTitle 华东理工大学学报(自然科学版)
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Snippet O647.3; 以氯化胆碱(ChCl)、甘油(Gly)、乙醇胺(MEA)为原料,制备了 ChCl-Gly-MEA三元低共熔溶剂(DES),研究了其在室温和常压下对CO2的吸收性能.在ChCl、Gly、MEA具有不同物质的...
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Title 含乙醇胺三元低共熔溶剂吸收CO2的研究
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