Evaluation of VLEs for Binaries of Five Compounds Involved in the Production Processes of Cyclohexanone

ChemEngineering

David Lorenzo¹  Arturo Romero¹  Aurora Santos¹  Adriel Sosa²  Juan Ortega²  Luis Fernández² 

[1]Chemical Engineering and Materials Department, Universidad Complutense de Madrid, 28040 Madrid, Spain

[2]Thermal Engineering & Instrumentation Division (IDeTIC), Universidad de Las Palmas de Gran Canaria, 35017 Las Palmas de Gran Canaria, Spain

关键词: cyclohexanone;    vapor–liquid equilibrium;    UNIFAC;    COSMO-RS;    distillation;   

DOI  :  10.3390/chemengineering6030042

来源: DOAJ

【 摘 要 】

In an attempt to evaluate the separation of certain impurities that arise in some stages of the production of cyclohexanone, this work analyzed the possibility of removing five of these substances via rectification. Due to the scarcity of experimental vapor–liquid equilibrium data for most of the solutions in the effluent of the global process, prior knowledge of their behavior is required. In this work, two predictive models, UNIFAC and COSMO-RS, were used to determine a priori the possibility of obtaining, by distillation, the individual components of seven of the binaries formed by the combination of these five compounds. Since both procedures described quasi-ideal behavior for all the chosen solutions, the results are considered as an approximation, owing to the special nature of the studied systems. The results and characteristics of each system are discussed separately.

【 授权许可】

Unknown