Based on analysis of main factors causing failure of petrochemical equipment, a leakage prediction model of typical petrochemical equipment is worked out with the help of LEAK software designed by DNV.

Application of HSE management system in the petrochemical plant;

Practice on adjusting fuel component of petrochemical plant;

Through describing mechanical seal circulation system and comparing with its technological advantages,the article puts forth the suggestion and assumption to disseminate and apply the seal circulation system in major compressors and pumps of petrochemical plants.