New process development and process evaluation for capturing CO2 in flue gas from power plants using ionic liquid[emim][Tf2N]

查看全文 作　　者：Lan [1,2,3]Li;Xiaoting [1,2,3]Huang;Quanda [4]Jiang;Luyue [1]Xia;Jiawei [5]Wang;Ning [1,2,3]Ai

机构地区：[1] College of Chemical Engineering,Zhejiang University of Technology,Hangzhou 310014,China;[2] Zhejiang Province Key Laboratory of Biomass Fuel,Hangzhou 310014,China;[3] Biodiesel Laboratory of China Petroleum and Chemical Industry Federation,Hangzhou 310014,China;[4] Zhejiang Supcon Software Co.,Ltd,Hangzhou 310014,China;[5] School of Engineering&Applied Science,Aston University,Birmingham B47ET,W Midlands,England,UK

出　　处：《Chinese Journal of Chemical Engineering》索引2020年第28卷第3期,共12页

基　　金：financially supported by the Zhejiang Provincial Natural Science Foundation of China(LY16B060014);State Key Laboratory of Chemical Engineering(No.SKL-ChE-08A01);the Innovation and Development of Marine Economy Demonstration。 摘　　要：Using the ionic liquid[emim][Tf2N]as a physical solvent,it was found by Aspen Plus simulation that it was possible to attempt to capture CO2 from the flue gas discharged from the coal-fired unit of the power plant.Using the combination of model calculation and experimental determination,the density,isostatic heat capacity,viscosity,vapor pressure,thermal conductivity,surface tension and solubility of[emim][Tf2N]were obtained.Based on the NRTL model,the Henry coefficient and NRTL binary interaction parameters of CO2 dissolved in[emim][Tf2N]were obtained by correlating[emim][Tf2N]with the gas–liquid equilibrium data of CO2.Firstly,the calculated relevant data is imported into Aspen Plus,and the whole process model of the ionic liquid absorption process is established.Then the absorption process is optimized according to the temperature distribution in the absorption tower to obtain a new absorption process.Finally,the density,constant pressure heat capacity,surface tension,thermal conductivity,and viscosity of[emim][Tf2N]were changed to investigate the effect of ionic liquid properties on process energy consumption,solvent circulation and heat exchanger design.The results showed that based on the composition of the inlet gas stream to the absorbers,CO2 with a capture rate of 90%and a mass purity higher than 99.5%was captured.These results indicate that the[emim][Tf2N]could be used as a physical solvent for CO2 capture from coal-fired units.In addition,the results will provide a theoretical basis for the design of new ionic liquids for CO2 capture. 关键词：Ionic liquids CO2 capture Aspen Plus process simulation New green physical solvents Flue gas

相关文献

参考文献（36）
引证文献（2）
耦合文献（40）

参考文献(36)

引证文献(2)

耦合文献(40)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

New process development and process evaluation for capturing CO2 in flue gas from power plants using ionic liquid[emim][Tf2N]

参考文献(36)

引证文献(2)

耦合文献(40)

用户提示