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UNIFAC关联甲醇-碳酸二甲酯汽液平衡 被引量:1

Correlation of vapor-liquid equilibrium for methanol-diethyl carbonate by uNIFAC model
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摘要 在101.32 kPa下,用改进的Othmer釜测定了甲醇-碳酸二甲酯二元物系的等压汽液平衡数据。利用UNIFAC模型对实验数据进行了拟合,得到了新基团—OCOO—与—CH_3—,CH_3OH基团间的UNIFAC作用参数,扩充了UNIFAC模型的应用范围。与原始基团划分的UNIFAC模型关联结果相比,采用新基团划分法推算得到的汽液平衡数据与实验值偏差更小,说明新基团划分更合理,并利用拟合的参数对含有碳酸酯物系的汽液平衡进行了验证。 在101.32 kPa下,用改进的Othmer釜测定了甲醇-碳酸二甲酯二元物系的等压汽液平衡数据。利用UNIFAC模型对实验数据进行了拟合,得到了新基团—OCOO—与—CH<sub>3</sub>—,CH<sub>3</sub>OH基团间的UNIFAC作用参数,扩充了UNIFAC模型的应用范围。与原始基团划分的UNIFAC模型关联结果相比,采用新基团划分法推算得到的汽液平衡数据与实验值偏差更小,说明新基团划分更合理,并利用拟合的参数对含有碳酸酯物系的汽液平衡进行了验证。
出处 《化工进展》 EI CAS CSCD 北大核心 2011年第S1期622-625,共4页 Chemical Industry and Engineering Progress
基金 国家自然科学基金(20476005) 国家科技支撑计划课题子课题(2006BA109B07 01)
关键词 UNIFAC模型 甲醇 碳酸二甲酯 汽液平衡 UNIFAC model methanol diethyl carbonate VLE data
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参考文献14

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二级参考文献27

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