化学工程2011，Vol.39Issue(8)：6-10,52,6.
环己酮装置环己烷精馏工段的模拟与优化
Simulation and optimization of cyclohexane distillation section in cyclohexanone device
范会芳 1包宗宏2
作者信息
- 1. 南京工业大学化学化工学院,江苏南京210009
- 2. 南京中图数码科技有限公司,江苏南京210009
- 折叠
摘要
Abstract
An industrial process section of three-effect distillation configuration for the separation of cyclohexane, cyclohexanone and cyclohexanol was simulated by software Aspen Plus. Based on the simulation results, the reason of higher energy consumption of the process was analyzed. Three new energy-saving schemes were given as follows: using lower heat transfer temperature difference for heat exchangers ( Scheme 1 ) ; using four-effect distillation configuration ( Scheme 2) and heat pump distillation configuration (Scheme 3). The three schemes were simulated and optimized. The simulation results indicate that the heat transfer temperature difference for heat exchanger has a noticeable effect on energy consumption. As temperature difference drops, energy consumption also declines and energy efficiency increases. Meanwhile, the effect of temperature difference on energy consumption is more significant than that of increasing the distillation effect number. Compared with multi-effect distillation, heat pump distillation has advantages on energy saving. Compared with the original three-effect distillation configuration, the energy savings of these three schemes are 18% , 27% and 40% , respectively. It provides the important reference for the energy-saving revamping of existing device and the design of new cyclohexanone device.关键词
环己酮/环己烷/多效精馏/热泵精馏Key words
cyclohexanone/ cyclohexane/ multi-effect distillation/ heat pump distillation分类
化学化工引用本文复制引用
范会芳,包宗宏..环己酮装置环己烷精馏工段的模拟与优化[J].化学工程,2011,39(8):6-10,52,6.
