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个人信息Personal Information
教授
博士生导师
硕士生导师
性别：男
毕业院校：大连工学院
学位：学士
所在单位：化工学院
学科：工业催化. 化学工艺
办公地点：大连理工大学西校区化工实验楼B221
联系方式：凌工路2号大连理工大学西校区化工实验楼B221,116023 tel：041184986322，email：zalidy5518@vip.sina.com
电子邮箱：zhangyc@dlut.edu.cn
Species distribution of CO2 absorption/desorption in aqueous and non-aqueous N-ethylmonoethanolamine solutions
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论文类型：期刊论文
发表时间：2016-04-01
发表刊物：INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
收录刊物：SCIE、EI、Scopus
卷号：47
页面范围：151-158
ISSN号：1750-5836
关键字：CO2; N-ethylmonoethanolamine (EMEA); Non-aqueous; Absorption-desorption; C-13 NMR
摘要：The CO2 absorption and desorption in N-ethylmonoethanolamine (EMEA) solutions were carried out using an absorption desorption apparatus and the species distribution was explored using the quantitative C-13 NMR spectroscopy. EMEA + ethanol solution had a much lower CO2 loading (0.547 mol CO2/mol EMEA) than EMEA + H2O solution (0.799 mol CO2/mol EMEA) due to the lower concentration of alky carbonate generated in EMEA + ethanol solution than the corresponding bicarbonate/carbonate as generated in EMEA + H2O solution and the no further reaction of carbamate with CO2 in EMEA+ ethanol solution. The EMEA regeneration efficiency of the EMEA+ ethanol solution at 363, 373 and 383K (55.44, 86.86 and 100.00%) was much higher than EMEA + H2O solution at corresponding temperatures (27.56, 30.25 and 38.80%), which was mainly influenced by the decomposition of carbamate, while the existence of bicarbonate prevented carbamate decomposing. (C) 2016 Elsevier Ltd. All rights reserved.