丙烯精馏塔系统过程分析与优化  

PROCESS ANALYSIS AND OPTIMIZATION OF PRO- PYLENE DISTILLATION SYSTEM

作　　者：刘荣[1] 邹生耀 吴鹏鸣[1] 韦岳平 

机构地区：[1]扬子石化-巴斯夫有限责任公司,江苏南京210048

出　　处：《乙烯工业》2013年第4期54-57,6,共4页Ethylene Industry

摘　　要：扬子石化-巴斯夫有限责任公司裂解装置2010年进行了扩能改造,年乙烯生产能力由600kt扩大为740 kt。改造后急冷水塔塔底温度偏低,导致丙烯精馏塔系统再沸器热量不足,塔釜丙烯损失偏大。因此在正常运行过程中,需要投用急冷水加热器,其在高负荷时会消耗大量低压蒸汽。针对这些问题,应用Aspen plus V7.0流程模拟软件和Aspen Tast+换热器模拟软件对该精馏系统进行模拟分析,从物料平衡、能量平衡、热量分配和塔压控制几个方面进行分析,并介绍了相关的解决措施。BASF-YPC's ethylene plant finished its expansion in 2010 and its ethylene capacity was expanded from 600 kt / a to 740 kt / a. After the expansion, low bottom temperature in quench water tower led to the shortage of heat for reboiler in propylene distillation column and the heavy loss of propylene at the bottom of the column. Quench water heater,which consumes a large amount of low-pressure steam at high load conditions, needed to be put into use during normal operation. To solve these problems,simulation analysis is carried out,and related countermeasures are introduced.

关 键 词：丙烯精馏 急冷水温度低 塔压 优化 

分 类 号：TQ221.212[化学工程—有机化工]