Who can tell me about the problems that can occur in catalytic cracking units and the solutions for them?
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The more information there is on the problems that can occur in catalytic cracking units and the methods to address them, the better. Thank you all
Coking of the large valve at the oil and gas inlet of the fractionation tower leads to shutdown for repairs; the reaction column becomes blocked. What aspects need attention?
Are valves still used at the oil and gas inlet? These days, it is generally connected directly by flanges. Can’t it be single-unit fluidization?
http://bbs.hcbbs.com/thread-252399-1-36.html The poster recommends a book to read: \"Analysis and Prevention of Catalytic Cracking Accidents\"
There is another book titled \"Q&A on Emergency Knowledge for Catalytic Cracking Units\"; you might want to take a look at it – much of the content is quite basic.
Your company must have prepared some accident response plans; please refer to those plans
It takes a long time, about 8 hours
Coking of the two units and the distillation system, salt formation in the distillation tower, abnormal operation of the unit, equipment corrosion, significant fluctuations in operations, etc.; for details, refer to the guidelines for long-term operation