低负荷下邻苯塔的波动原因及对策  

Countermeasure and fluctuating cause of the operation for the o-xylene tower

作　　者：孙昊俊[1] 杨俊泽[1] 张连波[1] 徐秀杰[2] 金玉粉[3] 

机构地区：[1]中国石油吉林石化公司炼油厂,吉林吉林132022 [2]中国石油吉林石化公司电石厂,吉林吉林132022 [3]中国石油吉林石化公司农药公司,吉林吉林132022

出　　处：《化工科技》2009年第5期51-53,共3页Science & Technology in Chemical Industry

摘　　要：邻二甲苯塔采用带有隔板的热虹吸式再沸器的大筛孔筛板塔。该塔在低负荷区运行时,因塔釜易出现干釜现象,塔回流无法提高,不能满足正常分离的需要。作者针对此问题,采取了部分塔底液导入进料线的方法,提高了塔的操作弹性,解决了塔釜的干釜问题。o-xylene tower adopted a large-hole sieve-tray column with a thermol siphon reboiler which had baffles. At low loads, the tower kettle was prone to dry. This may result in no way to increase reflux to meet the needs of the normal separation. For this problem, through researching role-based rationale,a part of bottom liquid was mixed in the feed line which can rise the operate flexibility of the tower and solve the problem of dry kettle.

关 键 词：邻二甲苯塔 大筛孔 筛板塔 隔板 热虹吸式再沸器 干釜 

分 类 号：TQ241[化学工程—有机化工]