Author/Authors :
Zheng, Huidong School of Chemical Engineering - Fuzhou University - Fuzhou - 350108 - Fujian, P.R. CHINA , Tian, Hui College of Chemistry and Chemical Engineering - Yantai University - Yantai - 264005 - Shandong, P.R. CHINA , Shen, Yanyi School of Chemical Engineering - Fuzhou University - Fujian, P.R. CHINA , Wang, Jie School of Chemical Engineering - Fuzhou University - Fujian, P.R. CHINA , Zhao, Suying School of Chemical Engineering - Fuzhou University - Fujian, P.R. CHINA
Abstract :
Residue curve maps are a powerful tool for the preliminary design of Reactive
Distillation (RD). In this study, residue curve maps of the n-butyl acetate synthesis reaction
were calculated based on the Langmuir–Hinshelwood–Hougen–Watson kinetic and UNIQUAC models
to calculate the physical properties of the system. The results showed that the unstable node branch
emerged from the n-butyl acetate/water edge, moved toward the chemical equilibrium surface
with increasing Damköhler number, and no ternary reactive azeotropic point appeared when
the reaction was added. Conceptual design of n-butyl acetate synthesis by reactive distillation based on
residue curve maps is presented. Based on the simulation results, both the energy consumption and
the total annual cost were lower than previously reported values.
Keywords :
Reactive distillation , Conceptual design , N-butyl acetate , Residue curve map