摘 要
苯与环己烷混合物是化工非常典型的二元共沸系类。选用糠醛作为萃取剂，在前期实验验证的基础上，采用ASPNE PLUS7.2化工模拟软件中的Batch Frac 单元操作模块，采用UINFAC 物性计算方法，通过改变各物性参数，对苯和环己烷二元共沸物的分离进行间歇萃取精馏模拟计算。模拟结果表明：常压操作条件下，塔顶环己烷分数能达到98%，模拟计算的运行能够为试验进一步研究提供很好的理论依据和设计参数。
关键词：ASPEN PLUS；Batch Frac；间歇萃取精馏；操作参数；苯；环己烷。
ABSTRACT
In the chemical industry, benzene-cyclohexane mixture is very typical binary azeotrope. Based on previous experimental validation, a BatchFrac unit operation block in ASPEN PLUS11.1 was adopted, simulation calculation of the batch extractive distillation for the separation of binary azeotropic benzene-cyclohexane mixture was carried out by choosing UNIFAC as the calculation method of physical property and by changing operation parameters. The simulation results show that the mass rate of overhead cyclohexane is up to 98%. The application of simulation calculation can provide a good theoretical basis for deep study and design reference.
Key words: ASPEN PLUS; BatchFrac; Batch extractive distillation; Operating parameters; Benzene; Cyclohexane
目 录
1.5 原料与萃取剂的性质………………………………………………………2
第二章 设计概述....................................................5
2.1 设计题目…………………………………………………………………..5
2.2 主要产品的性能及用途…………………………………………………….5
3.2 模拟计算结果………………………………………….6
第八章 流体力学校核...............................................32
8.1 塔的校核…………………………………………………………………..32
10.1 设计陈述…………………………………………………………………...38
10.2 体会和收获…………………………………………………………….....38
附录：文献综述……………………………………………………………………..40
参考文献……………………………………………………………………………..45
