文献类型：期刊文献

英文题名：Experimental study and thermodynamic model for respective solubilities of CO2 and ethanol for CO2-ethanol-polystyrene ternary system at elevated pressure and temperature

作者：Qian, Ying-Hui[1];Cao, Jun-Ming[2];Li, Xue-Kun[1];Cao, Gui-Ping[1];Wang, Chang-Chun[3];Shi, Yun-Hai[1]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, UNILAB, Shanghai 200237, Peoples R China;[2]Fudan Univ, Dept Chem, Shanghai 200433, Peoples R China;[3]Fudan Univ, Dept Macromol Sci, Shanghai 200433, Peoples R China

年份：2018

卷号：135

期号：21

外文期刊名：JOURNAL OF APPLIED POLYMER SCIENCE

收录：;EI(收录号：20180604777642);WOS:【SCI-EXPANDED(收录号:WOS:000426508000016)】；

基金：This work is supported by the National Natural Science Foundation of China (NSFC), grants 20676031 and 20876051.

语种：英文

外文关键词：adsorption; swelling; theory and modeling; thermal properties

摘要：Foamed non-Fickian diffusion (FNFD) model for a ternary system was proposed for the first time to regress the desorption data obtained by the gravimetric method. Results showed that FNFD model could accurately describe the diffusion behavior of CO2 and ethanol out of foamed polystyrene (PS) and well predict total solubilities of CO2 and ethanol in foamed PS. Meanwhile, Sanchez-Lacombe equation of state (S-L EoS) was adopted to calculate the respective solubilities (solubility of CO2 in PS or solubility of ethanol in PS) and total solubilities of CO2 and ethanol in PS for CO2-ethanol-PS ternary system. Results showed that the total solubility of CO2 and ethanol obtained from S-L EoS agreed well with values obtained by FNFD model. Furthermore, the respective and total solubilities of CO2 and ethanol at 313.15, 338.15, and 343.15 K were calculated by S-L EoS. Results indicated that in the dissolving process, ethanol would be accelerated by CO2 to dissolve into PS, and ethanol would compete with CO2 to dissolve into PS, simultaneously. (c) 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46281.