化工原理课程设计-苯-甲苯筛板精馏塔的设计

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1、化工原理课程设计说明书淮阴工学院课程设计说明书作者:学号：1091601223系(院):生命科学与化学工程学院专业:化学工程与工艺题目:苯-甲苯筛板精馏塔的设计指导者：2012年6月33化工原理课程设计说明书化工原理课程设计说明书中文摘要精馏是利用混合液中组分挥发度的差异，实现组分高纯度分离的多级蒸馏操作，即同时实现多次部分汽化和部分冷凝的过程。实现精馏操作的主体设备是精馏塔。塔设备是能够实现蒸馏的气液传质设备，广泛应用于化工、石油化工、石油等工业中，其结构形式基本上可以分为板式塔和填料塔两大类。

2、我国石油工业具有一定的水平，但还是一个发展中的国家,摆在我们石油工作者面前的任务是繁重的。因此必须坚持独立自主、自力更生，革新挖潜，全面提高，综合利用，大搞化工原料，赶超世界先进水平。关键词：精馏塔塔板苯—甲苯塔板负荷33化工原理课程设计说明书淮阴工学院化工原理课程设计任务书专业：化学工程与工艺班级：化工1092姓名：翟必赢学号：设计日期：2012年6月11日至2012年7月22日设计题目：苯-甲苯筛板精馏塔的设计设计条件：进料量F=280kmol/h进料组成xF=0.58（摩尔分率）进料温度tF

3、=泡点温度产品要求xD=96%回收率=93%设计内容:1、精馏塔的物料衡算；2、塔板数、压降的计算；3、精馏塔的工艺条件及有关物性数据的计算；4、精馏塔的相关工艺尺寸计算；5、绘制精馏塔设计条件图。指导教师：胡涛2012年6月6日33化工原理课程设计说明书目录1.绪论···························································61.1设计背景··················································

4、···61.1.1塔设备的分类················································61.1.2塔设备在化工生产中的作用和地位·····························61.2设计条件······················································61.3问题研究······················································62.板式塔的设计·····

5、·············································62.1工业生产对塔板的要求···········································62.2设计方案的确定················································72.1.1装置流程的确定··············································72.2.2操作压力的选择··················

6、···························72.2.3进料热状况的选择···········································733化工原理课程设计说明书2.2.4加热方式的选择·············································72.2.5回流比的选择···············································73.工艺流程图·····························

7、·······················74.工艺计算及主体设备的计算·······································84.1精馏塔的物料衡算···············································94.1.1原料液及塔顶、塔底产品的摩尔分率····························94.1.2原料液及塔顶、塔底产品的平均摩尔质量························94.1.3物料衡算·······

8、·············································94.2塔板数的确定·················································104.2.1理论板层数NT的求取········································104.2.2实际板层数的求解··········································114.3精馏塔的工艺条件及有关物性数据计算···