基于UD-Aspen的间歇精馏过程优化设计研究

Optimization of operation conditions of batch distillation based on UD-Aspen

提出了基于均匀设计（UD）-Aspen耦合优化间歇精馏过程的方法,并以天然香料β-苯乙醇粗产品高真空间歇精馏提纯过程优化技术研究为例,探索该方法对间歇精馏过程优化的可行性。通过均匀设计方法确定间歇精馏模拟的试验方案,利用Aspen Plus软件建立β-苯乙醇间歇精馏过程的模型,计算各试验方案的工艺参数。经过优化可得β-苯乙醇产品单程收率为75.49%,操作时间为6.22 h,能耗为3.614×10~4k J。

A method based on uniform design and Aspen model is developed for the optimization of batch distillation. Taking the high vacuum distillation of the crude product of the natural flavor（ beta-benzene ethanol） as an example,the feasibility of the optimization of batch distillation is explored. The experimental scheme of batch distillation simulation is determined by uniform design method. The model of the batch distillation process of the beta-benzene ethanol is established by using Aspen Plus software. The technological parameters of each test plan are calculated. The yield,the operation time and the energy consumption are 75. 49%,6. 22 h and 3. 614 × 10~4 k J,respectively,after optimization.