苯-甲苯分离过程筛板精馏塔地设计.doc

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1、课程设计说明书作者:XXXX学号：XXXXX系(院):XXXXXXXXXXXX专业:XXXXXXXXXXXX题目:苯-甲苯筛板精馏塔的设计XXXXXXXXXXXXXXXX指导者：XXXXXXXXXX2010年6月化工原理课程设计说明书中文摘要XXXXXXXXXXXX化工原理课程设计任务书专业：化学工程与工艺班级：XX：XXX学号：XXX设计日期：2010年6月21日至2010年7月2日设计题目：苯-甲苯筛板精馏塔的设计设计条件：进料量F=160kmol/h进料组成=0.55（摩尔分率）进料温度tF=泡点温度产品要求=96%回收率=94%设计容:1

2、、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：XX2010年6月目录1.引言··························································61.1塔设备的分类···················································61.2塔设备在化工生产中的作用和地位·······························61.3设计条件········

3、·············································61.4问题研究·····················································62.板式塔的设计·················································62．1工业生产对塔板的要求·········································62.2设计方案的确定··············································

4、··72.2.2操作压力的选择··············································72.2.3进料热状况的选择············································72.2.4加热方式的选择··············································72.2.5回流比的选择················································73工艺流程图·······························

5、·······················74.工艺计算及主体设备的计算·······································84.1精馏塔的物料衡算··············································84.1.1原料液及塔顶、塔底产品的摩尔分率·····························84.1.2原料液及塔顶、塔底产品的平均摩尔质量·························84.1.3物料衡算·······························

6、············84.2塔板数的确定··················································94.2.1理论板层数NT的求取········································94.2.2实际板层数的求解···········································94.3精馏塔的工艺条件及有关物性数据计算···························94.3.1操作压力的计算······························

7、················104.3.2操作温度计算················································114.3.3平衡摩尔质量的计算··········································114.3.4平均密度的计算·············································124.3.5液体平均表面力计算·······································134.3.6液体平均粘度计算············

8、·······························134.4精馏塔的塔体工艺尺寸计算····················