Harbin Petrochemical 1,200,000 Tons Of Catalytic Cracking Unit Project Of HAZOP Analysis And PSSR Review

The HAZOP analysis method as a system of risk analysis, to conduct a comprehensive system of process analysis and review, to analyses the production operation of the operator error and the consequences arising there from, which can be the potential risk identification process, and to take measures against potential risks.PSSR as one of the elements of process safety management, which means life cycle as the reference, all affect the equipment, facilities and long time start the safe operation of the various elements from human, machine, material, method, environment for review and confirmation, determine whether the safe start, and tracking verification. Its purpose is to provide a final check points for the new and modified equipment, to ensure that all safety related factors have been satisfied with the implementation of.This research according to the actual production experience and site content of transformation, a HAZOP evaluation methods and suggestions for practical, effective, providing reference for similar plant. At the same time, the method with the PSSR HAZOP evaluation, applied to revamp the whole cycle, the risk identification of the entire renovation process, find out the deficiency existing in the process design, equipment operation of equipment, operation and safety measures, provide decision-making basis for the project construction, construction.Chinese petroleum Petrochemical Industries Co in Harbin 1200000 tons/year catalytic cracking unit has some problems, mainly for high energy consumption, serious reaction settler coking, gas turbine disc of serious scaling, dry gas is not dry and device for pressure balance is not reasonable, hi view of the above problems, the company made a rectification plan, the transformation involves a large area, construction period is relatively short, in order to ensure the smooth implementation of the project, the Author shall organize the implementation of the HAZOP analysis. The HAZOP analysis, divided by 24 points, including 41 PID map and 2 pieces of equipment layout, analysis found the problem, propose measures 302, which are involved in the service unit 75, part of the transformation of the 227. And according to the input size and other factors important degree, suggest measures proposed measures of comprehensive consideration, will recommend measures into high, low, three levels, one level for the high level of 29, in 125, grade is low 73. These suggestions to further improve the help of conditions of production safety of the project, to help prevent similar accidents recently, maintenance operation is helpful for production process.Combined to the HAZOP results, companies founded PSSR review group, has developed three sets of catalytic cracking unit PSSR review list, and organization of the verification review, all found the problem to implement the relevant responsible person and rectification of time, for a smooth start to lay a good foundation.