Simulation and optimization on isopropyl acetate recovery process
LIU Yan-jie, WANG Ben, PAN Gao-feng
Jilin Provincial Laboratory for Chemical Separation Technology and Energy-saving Engineering, Jilin Institute of Chemical Technology, Jilin 132022, China
Abstract: A process consisting of pre-distillation, extractive distillation and flash is developed for recovering isopropyl acetate after analyzing the characteristics of targeting materials and the requirements of actual production task.It is simulated and optimized by using Aspen Plus software.By means of Design Specs and Sensitivity tools, the sensitivity of pre-distillation column, extractive distillation columns and flash facility is analyzed with the number of theoretical plates, reflux ratio, feed position for raw material, solvent ratio and feed position for solvent as manipulated variables, and with mass fractions and recovery rates of isopropyl acetate and methanol, as well as reboiler heat load of extractive distillation column as collection variables.Under the optimized conditions, mass fraction and recovery rate of isopropyl acetate is 99.6% and 99.7% respectively, that of methanol is 95.6% and 95.5% separately, meaning that re-use of resources is realized and the production cost is reduced.
刘艳杰, 王犇, 潘高峰. 乙酸异丙酯回收工艺模拟与优化[J]. 现代化工, 2018, 38(9): 215-218.
LIU Yan-jie, WANG Ben, PAN Gao-feng. Simulation and optimization on isopropyl acetate recovery process. Modern Chemical Industry, 2018, 38(9): 215-218.
