Design Of an integration Frame HAZOP-SIL for safety Optimization of a Fired Heater

The paper highlight the guidelines to propose an integration frame to optimize the saety of a fired heater F100200 located in CDU unit (crude distillation unit) in ADRAR refinery south of Algeria.The proposed frame integrate the HAZOP - hazards and operability studies and safety integrity level studies. The idea behind the proposed method is to overcome the limitations raised from the application of each technique alone. The application of this proposed technique in the fired heater indicate that the heater needs more safeguards to work in a safe manner, as a conclusion more safety instrumented functions should be added, and the safety level of the existing ones should be checked.