化学工程2011，Vol.39Issue(2)：10-13,4.
热集成变压精馏分离甲苯-异丙醇的模拟
Simulation of heat-integrated pressure swing distillation for separation of toluene-isopropyl alcohol
杨德明 1王新兵 1孙磊1
作者信息
- 1. 常州大学,化学化工学院,江苏,常州,213164
- 折叠
摘要
Abstract
A heat-integrated pressure swing distillation (PSD) process for separating a homogeneous azeotropic mixture composed of toluene and isopropyl ethanol was proposed due to its sensitive character to the system pressure.By minimizing the energy consumption when the purities of toluene and isopropyl ethanol were fixed, the optimum simulation was performed by means of a package of commercial software ASPEN PLUS and a corrected thermodynamic model WILSON equation, and the optimum operating conditions and equipment parameters were determined.The simulation results show that the PSD process heat-integrated by condensing the normal-pressure column distillate against the evaporation of the mixture in the negative-pressure column reboiler can save energy by 30.7％ compared with the conventional PSD process, thus supplying an effective and new kind of separation scheme for toluene-isopropyl ethanol and similar azeotropic mixtures.关键词
甲苯-异丙醇/热集成/变压精馏/优化模拟/节能Key words
toluene-isopropyl alcohol/ heat-integrated/ pressure swing distillation/ optimization simulation/ energy-saving分类
化学化工引用本文复制引用
杨德明,王新兵,孙磊..热集成变压精馏分离甲苯-异丙醇的模拟[J].化学工程,2011,39(2):10-13,4.
