氧化反应系统温度异常原因分析

Analysis of abnormal temperature of oxidation reaction system

对2019年10月起PTA装置氧化反应系统温度异常情况进行分析。蒸汽透平旁路冷凝器泄漏是主要原因。循环水携带钙镁金属及其它沉积物进入凝液系统,造成氧化反应器1、2、3级冷凝器换热能力变差,进而氧化反应系统温度异常。

The abnormal temperature of oxidation reaction system in PTA plant since October 2019 was analyzed.The leakage of steam turbine bypass condenser is the main reason.The circulating water carries calcium and magnesium metal and other sediments into the condensate system,which leads to the poor heat transfer capacity of the first,second and third stage condensers of the oxidation reactor,and the abnormal temperature of the oxidation reaction system.