Research And Application Of Integrity Evaluation Technology For Hudrofluoric Acid Alkylation Unit

In recent years,with the continuous improvement of gasoline product standards,petrochemical companies have set higher goals for the long-term safe operation of oil plants.Because of the characteristics of the hydrofluoric acid alkane medium,higher requirements are imposed on the operation of the alkylation unit and its equipment inspection,management and maintenance.However,the current inspection and maintenance of domestic petrochemical enterprises’ equipment is still planned preventive maintenance,and the current management level cannot meet the increasing risks.In this paper,a set of 60,000-ton/year hydrofluoric acid alkylation unit is selected as the research object for completeness evaluation research.Research is carried out from three technical aspects:hazard and operability analysis(HAZOP),static equipment risk-based inspection(RBI)assessment,and reliability-centered maintenance(RCM)of moving equipment.In the research process,the analysis of the maximum credible accident consequences was integrated into the RBI assessment to visually display the consequences of hydrofluoric acid leakage;the exploration and proposed a data-driven method for constructing a database of fault modes for moving equipment,integrating equipment maintenance records and fault diagnosis data to study and judge equipment failures The model improves the traditional RCM analysis method and promotes the dynamic development of the RCM evaluation work of complete sets of equipment and moving equipment,thereby establishing a set of integrity evaluation technical framework.In summary,the technology for evaluating the integrity of hydrofluoric acid alkylation equipment can help identify the hidden risks of the equipment,improve the inspection and maintenance of equipment,and provide technical support for improving management and reducing unsafe risks.The integrity evaluation of the device has some guiding significance.