期刊
FLUID PHASE EQUILIBRIA
卷 563, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.fluid.2022.113588
关键词
Glycerol; Glycerol carbonate; Dimethyl carbonate; Methanol; Liquid -liquid equilibrium
资金
- National Natural Science Foundation of China [22178279]
The equilibrium data for glycerol transesterification were measured and correlated using the NRTL model, which successfully reproduced the phase equilibrium trends of the studied systems.
Glycerol carbonate is a value-added glycerol derivative, which can be obtained by transesterification with dimethyl carbonate. Phase splitting and merging exist in the transesterification due to the low solubilities of glycerol with dimethyl carbonate. The isobaric liquid-liquid equilibrium data for two ternary systems (glycerol - dimethyl carbonate - glycerol carbonate/methanol) and one quaternary system (glycerol - dimethyl carbonate - glycerol carbonate - methanol) involved in the glycerol transesterification were measured at reaction relevant temperatures (333.2, 353.2, 373.2, and 393.2 K) and 1.5 MPa. The equilibrium data were correlated using the NRTL model to calculate activity coefficients, with temperature-dependent interaction parameters, which were estimated through data regression and validated by checking the consistency of the Gibbs free energy. The NRTL model with the regressed parameters could reproduce the phase equilibrium trends of all the studied systems.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据