Isobaric Vapor-Liquid Equilibrium for the Toluene and N-Formylmorpholine System 

Journal of Petrochemical Universities ›› 2008, Vol. 21 ›› Issue (4): 11-14.

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Isobaric Vapor-Liquid Equilibrium for the Toluene and N-Formylmorpholine System 

XIONG Jie-ming, ZHANG Li-ping, GONG Liang-fa, REN Xiao-guang

(Beijing Institute of Petrochemical Techology, Beijing 102617, P.R.China)

Received:2007-09-13 Published:2008-12-20 Online:2017-07-05

甲苯与N -甲酰吗啉二元等压汽-液平衡研究

熊杰明, 　张丽萍, 　龚良发, 　任晓光

(北京石油化工学院, 北京102617)

作者简介:熊杰明(1967 -), 男, 四川泸州市, 副教授, 硕士
基金资助:
北京市属、市管高校人才强教计划资助项目
(BJJWR20051102);北京市优秀人才培养资助项
目(20071D0500500159)

Abstract

Abstract:

The process for aromatics recovering with N-formylmorpholine (NFM) by extractive distillation has been widely applied in petrochemical and coal tar industries, and the research for vapor-liquid equilibrium (VLE) of NFM and toluene were very important in design and optimization of rectifying tower. The VLE data of above binary system was determined using an improved VLE equipment EC-2 under 101.33 kPa, which have pass the thermodynamic consistency test of Herington, and were correlated with the NRTL and UNIQUAC models, and corresponding binary interaction parameters for the two models were obtained. The VLE curves predicted by the above model parameters agree more well with the experimental data than that predicted by literature model gained from data under 60 ℃. The VLE data and model parameters obtained above are essential for the engineering design of N-formylmorpholine-aromatics distillation processes.

Key words: N-Formylmorpholine(NFM) , Toluene , Vapor-liquid equilibrium (VLE)

摘要： N -甲酰吗啉(NFM)作为甲苯萃取精馏脱饱和烃的优秀溶剂, 在石化、焦化行业上已得到了广泛应
用, 研究甲苯-NFM 的二元汽液平衡关系, 对萃取精馏塔的设计与优化有重要意义。用改进的EC -2 型汽液平衡
釜, 测定了等压(101 .33 kPa)下甲苯-NFM 二元体系汽液平衡数据, 经Hering ton 面积法检验, 数据满足热力学一
致性要求;用NRTL 和UNIQUAC 模型对实验数据进行了关联, 得到了模型相应的二元交互参数, 利用上述参数预
测的汽液平衡关系, 比60 ℃所得模型参数预测结果更符合实际。

关键词: N -甲酰吗啉 , 甲苯 , 汽液平衡

XIONG Jie-ming, ZHANG Li-ping, GONG Liang-fa, REN Xiao-guang. Isobaric Vapor-Liquid Equilibrium for the Toluene and N-Formylmorpholine System 

[J]. Journal of Petrochemical Universities, 2008, 21(4): 11-14.

熊杰明, 　张丽萍, 　龚良发, 　任晓光. 甲苯与N -甲酰吗啉二元等压汽-液平衡研究[J]. 石油化工高等学校学报, 2008, 21(4): 11-14.

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Isobaric Vapor-Liquid Equilibrium for the Toluene and N-Formylmorpholine System 

甲苯与N -甲酰吗啉二元等压汽-液平衡研究

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