镇海炼化对二甲苯装置抽余液塔改造  

REVAMPING OF RAFFINATE COLUMN IN p-XYLENE UNIT

作　　者：王雷[1] 杨宝贵[1] 

机构地区：[1]中国石化集团洛阳石油化工工程公司,河南省洛阳市471003

出　　处：《炼油技术与工程》2005年第12期22-28,共7页Petroleum Refinery Engineering

摘　　要：对镇海炼化股份有限公司0．45 Mt/a对二甲苯装置抽余液塔的操作进行诊断分析,找出了原塔内件设计 存在的问题。根据改造要求,进行了多方案的工艺条件分析。采用复合孔微型阀高效专利塔盘及其附属内件。改 造后产品质量满足设计要求,处理能力也超过了设计值,取得了良好的经济效益。The operation of raffinate column in p-xylene unit in Zhenhai Refining and Chemical.Company Limited is analyzed and the design shortcomings existing in original column internals are found out. Multischeme process conditions are analyzed according to the revamping requirement, and the high efficiency patent tray with compound hole and micro valve as well as the internals are adopted in the revamping. After revamping, the designed requirements of product quality are met and the unit capacity exceeds the design value. Good economic benefits are obtained.

关 键 词：对二甲苯装置 抽余液塔 塔板 降液管 技术改造 优化 

分 类 号：TQ241.12[化学工程—有机化工]