摘要
对催化裂化装置非计划停工原因进行统计分析,发现造成非计划停工的原因主要为沉降器结焦、主风机组故障、油浆系统故障、特殊阀门和设备故障、工艺管线腐蚀等。首先通过MIP-CGP工艺改造降低了装置非计划停工次数,然后结合多年的实际操作和管理经验,采取了一系列措施,如原料优化、操作优化来减缓沉降器结焦,更换安全的机组控制系统、减少烟机故障、材质升级,优化油浆系统、降低换热器压力降以及完善管理措施等。尤其强调对装置的日常监控,确保装置达到3～4 a的运行周期。
The analysis of statistics of unscheduled shutdown of the FCC unit concluded that the unsched- uled shutdown were mainly caused by coking in the settler, accidents or failures of main air blower, special valves and equipment and inappropriate operation methods, etc. After the unit was revamped with MIP-CGP process, the number of unscheduled shutdown has been greatly reduced. In addition, a series of effective measures based upon years＇ operation and management experience have been adopted, such as optimization of feedstock and operating conditions to mitigate coking in settler, replacement of control system of main air blo- wer train, reduction of flue gas expander accidents, upgrading of materials, optimization of oil slurry system, lowering of pressure drop of heat exchanger, improvement of management, strengthened routine monitoring of the unit operation, etc. , 3 -4 years＇ operating cycle has been ensured as the result.
出处
《炼油技术与工程》
CAS
2013年第1期23-27,共5页
Petroleum Refinery Engineering
