文献类型：期刊文献

英文题名：Liquid-liquid equilibria for ternary systems polyoxymethylene dimethyl ethers plus para-xylene plus water

作者：Zhuang, Zhihai[1];Zhang, Jianqiang[1];Liu, Xianke[1];Liu, Dianhua[1]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2016

卷号：101

起止页码：190

外文期刊名：JOURNAL OF CHEMICAL THERMODYNAMICS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000380751400025)】；

基金：This work was financially supported by the National Science Foundation of China (NO. 21506058), the China Postdoctoral Science Foundation (NO. 2015M571509) and Fundamental Research Funds for the Central Universities (NO. 222201514308).

语种：英文

外文关键词：Polyoxymethylene dimethyl ether; Water; Para-xylene; Liquid-liquid equilibria

摘要：Polyoxymethylene dimethyl ethers (PODEn) are promising diesel additives which can be synthesized from formaldehyde and methanol. In this work, the ternary liquid-liquid equilibria (LLE) were analytically determined at 293.15 K and 313.15 K for the following systems: PODE1 + para-xylene (PX) + water, PODE2 + PX + water, PODE3 + PX + water, PODE4 + PX + water, respectively. The isothermal experimental results have shown a good linear fit in Hand plots and the Othmer-Tobias. The design of the solvent extraction equipment for extracting PODEn from aqueous solution requires an appropriate model for the liquid-liquid phase equilibrium. The well-known NRTL and UNIQUAC thermodynamic models were applied to correlate the experimental data, and the results indicate that the UNIQUAC model gives a better agreement. (C) 2016 Elsevier Ltd.