乙醇__水浮连续精馏阀塔工艺设计VIP免费

课程设计设计题目乙醇-水连续精馏浮阀塔的设计学生姓名学号专业班级指导教师2014年1月11日.乙醇——水浮连续精馏阀塔工艺设计目录化工原理课程设计任务书.................................................3摘要...................................................................4一、设计任务及方案简介................................................101.1设计任务.........................................................101.2设计方案论证及确定.........................................................................................................10二、工艺流程草图及说明................................................122.1.1工艺草图..............................................................................................................................122.2工艺流程说明.......................................................................................................................12三、精馏塔工艺的设计及计算............................................133.1塔的物料衡算：...................................................................................................................133.1.1液料及塔顶，塔底产品含乙醇摩尔分数................................................................133.1.2平均摩尔质量...............................................................................................................133.1.3物料衡算......................................................................................................................133.2塔板数的确定：.....................................................................................................................143.2.1理论塔板数的求取................................................................................................153.2.2．求最小回流比及操作回流比R.......................................................................163.2.3求理论塔板数.....................................................................................................163.3塔的平均温度:........................................................................................................................173.4密度.........................................................................................................................................173.4.1精馏段.......................................................................................................................173.4.2提馏段.......................................................................................................................183.4.3不同温度下乙醇和水的密度....................................................................................183.5混合物的粘度.........................................................................................................................193.6相对挥发度.............................................................................................................................193.6.1精馏段挥发度...........................................................................................................193.6.2提馏段挥发度...........................................................................................................193.7气液相体积流量计算.............................................................................................................203.7.1精馏段...........................................................