摘要
对六套催化裂化装置的577台设备进行腐蚀调查,并对调查结果进行汇总分析。按设备类型进行统计,反应器、塔器、锅炉、换热器和容器的腐蚀比例依次为:91.67%,47.37%,40.00%,32.40%和14.41%;按所处工段进行统计,反应再生系统、分馏系统、吸收稳定系统和能量回收系统的腐蚀比例依次为:52.54%,32.85%,27.96%和17.24%。催化裂化装置的主要腐蚀有:冲刷腐蚀、循环水/垢下腐蚀、H_2S-HCl-NH_3-CO_2-H_2O体系腐蚀和高温硫腐蚀等。
The corrosions of 577 pieces of equipment in 6 FCC units were inspected and the inspection results were analyzed. According to the type of equipment, the corrosion rate of reactor, tower, boiler, heat exchanger and vessel is 91.67%, 47. 37%, 40%, 32.40%, 14.41% respectively; According to the position of the system, the corrosion rate of the reaction ＆ regeneration system, the fractionation system, the absorption stabilization system and the energy recovery system is 52.54%, 32. 85%, 27.96%, 17.24%, respectively. The main corrosions of the fluid catalytic cracking unit are erosion corrosion, cooling water / under deposit corrosion, H2S ＋ HCl ＋ NH3 ＋ CO2 ＋ H2O corrosion, high - temperature sulfur corrosion, etc.
出处
《石油化工腐蚀与防护》
CAS
2016年第5期29-36,共8页
Corrosion & Protection In Petrochemical Industry
关键词
催化裂化
腐蚀调查
腐蚀分析
fluid catalytic cracking unit, corrosion inspection, corrosion analysis
