Separating 1-Butene and 1, 3-Butadiene with DMF and DMF with Salt by Extractive Distillation

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Rongqi Zhou³  Zhanting Duan¹  Zhigang Lei² 

[1] The Key Laboratory of Science and Technology of Controllable Chemical Reactions, Ministry of Education, Beijing University of Chemical Technology;Department of Chemical Engineering, Tsinghua University

关键词: DMF;    1-Butene;    1;    3-Butadiene;    VLE;    Extractive Distillation;   

DOI  :  10.1252/jcej.35.211

来源: Maruzen Company Ltd

【 摘 要 】

References(12)Cited-By(5)This study is concerned with measurements of vapor-liquid equilibrium (VLE) for 1-butene/1, 3-butadiene/DMF and 1-butene/1, 3-butadiene/DMF with salt. A set of experimental apparatus has been established to measure the VLE of the two systems. Data of T-P-x-y at middle pressures have been obtained. The coincidence of experimental and calculated values, and the consistency of thermodynamics show that the experimental results appear accurate and the experimental apparatus is reliable. In contrast to using DMF only, DMF with salt is a better solvent and increases the relative volatility of 1-butene to 1, 3-butadiene. The UNIFAC models for the two systems have been set up, and a good agreement between the predicted and the experimental is achieved.

【 授权许可】

Unknown