1、 化工原理化工原理课程设计课程设计 设计题目 苯-乙苯精馏工段工艺设计 设计日期 2012 年 6 月 11 日至 2012 年 6 月 24 日 评分表： 指导教师签字： 1 前言前言 中文摘要：在化工、石油、医药、食品等生产中，常需将液体混合物分离以 达到提纯或回收有用组分的目的，而蒸馏就是其中一种方法。随着化学工业的发 展，蒸馏技术、设备及理论也有了很大的发展。蒸馏操作的理论依据是借混合液 中各组分挥发性的差异而达到分离的目的。 在操作中进行多次的气体部分冷凝或 液体部分气化称为精馏。习惯上，混合物中的易挥发组分称为轻组分，难挥发组 分成为中组分。 为此， 掌握气液相平衡关系， 熟悉各种
2、塔型的操作特性， 对选择、 设计和分析分离过程中的各种参数是非常重要的。 关键字：精馏，蒸馏，筛板，塔 abstract： In the chemical, petroleum, pharmaceutical, food and other production, often need a liquid mixture separation to achieve purification or recycled useful components purpose, and the distillation is one of the methods. Along with the develo
3、pment of chemical industry, distillation technology, equipment and theory also has greatly developed. The theoretical basis of the distillation operation was borrowed between each composition of volatile differences and to achieve the purpose of separation. In the operation of gas part of multiple c
4、ondensing or liquid part gasification called distillation. Traditionally, mixture of volatile components called light components, difficult volatile component becomes component. Therefore, grasps the gas-liquid balance relationship, familiar with all kinds of tower operation characteristics of selection, design and analysis of various parameters separation process is very important. keywords：rectification,distillation,sieve plate,pagoda 2 目录目录 前言
