分批精馏过渡段新型操作方式的研究  

A novel operation policy for slop cut of batch distillation

作　　者：张雪梅[1] 简春贵[2] 任洪东[2] 张卫江[1] 

机构地区：[1]天津大学化工学院,天津300072 [2]天津天大天久科技股份有限公司,天津300072

出　　处：《化学工程》2006年第10期5-8,共4页Chemical Engineering(China)

摘　　要：提出了一种新型过渡段操作方式———放塔身持液操作,分析了该操作中过渡段结束条件的确定方法,通过实验对过渡段的常规操作方式和放持液操作方式进行了比较,结果表明:后者能有效地克服分批精馏中持液的“飞轮效应”的影响,明显缩短操作时间,降低能耗。该方式操作简单,所需设备易于设计,便于在工业生产中实现,是对传统操作的有效改进。A novel operation policy for slop cut of batch distillation, i. e. , draining column holdup at the end of slop cut period was proposed. And the method of determining the stopping criterion for the operation was developed. Experiments were carried out to compare the discussed operation with the conventional one. The results show that the proposed policy can overcome the flying wheel effect of the column holdup and decrease operation time and energy consumption effectively. The policy does not require any complicated apparatus and is easy for operation and realization of industrialization.

关 键 词：分批精馏 过渡段 塔身持液 操作方式 

分 类 号：TQ028.31[化学工程]