3. Objective of equipment maintenance Objective of equipment maintenance Maintenance frequency Maintenance frequency Inspection and Testing Inspection and Testing Process types and operational practices Process types and operational practices Maintenance contractor qualification Maintenance contractor qualification Case studies Case studies Conclusion Conclusion

4. Equipment integrity Equipment integrity Operation Continuity Operation Continuity Plant personnel safety Plant personnel safety Plant revenues Plant revenues

5. Heat transfer equipment have different maximum maintenance frequencies. Heat transfer equipment have different maximum maintenance frequencies. Frequencies are based on heat intensity, process type, and equipment reliability. Frequencies are based on heat intensity, process type, and equipment reliability.Equipment Max. Interval (Mo.) Fired Boiler 24 Unfired Boiler 36 Process Fired Heater 60 Hydrogen Reformer 48 Heat Exchanger 60

6. Inspection prior to maintenance. Inspection prior to maintenance. Inspection records. Inspection records. Inspection log. Inspection log. External Inspection. External Inspection. Internal Inspection. Internal Inspection. Pressure testing. Pressure testing.

7. Equipment handles different types of processes. Equipment handles different types of processes. Erosion, Corrosion, and fouling. Erosion, Corrosion, and fouling. Normal Operation and abnormalities. Normal Operation and abnormalities. Equipment design limits. Equipment design limits. Recommend maintenance friendly design. Recommend maintenance friendly design.

8. Repair Certification R Stamp per NIBC Repair Certification R Stamp per NIBC Experience. Experience. Good reference list. Good reference list. Reliability. Reliability. Warranty. Warranty.

9. Water tube boiler. Short term overheating. Short term overheating. Insufficient circulation design. Insufficient circulation design. Design Modification of steam drum internals. Design Modification of steam drum internals. Repeat same modification to similar boilers. Repeat same modification to similar boilers.

10. Wrong Refractory Design. Wrong Refractory Design. Sulfur Dew Condensation behind Refractory. Sulfur Dew Condensation behind Refractory. Complete repair of the Furnace Shell Bottom. Complete repair of the Furnace Shell Bottom. Qualified Contractor for the job. Qualified Contractor for the job. Reaction Furnace Shell Failure.

11. Sulfur Condenser. Wrong Shutdown Lay up Procedure. Wrong Shutdown Lay up Procedure. Sulfuric Acid Formation. Sulfuric Acid Formation. Tube Corrosion. Tube Corrosion. Complete Retubing of 1654 tubes. Complete Retubing of 1654 tubes. Qualified Contractor for the job. Qualified Contractor for the job.

12. Burn Pit. Inadequate Refractory Structure. Inadequate Refractory Structure. Premature Failure. Premature Failure. Structure Redesign. Structure Redesign.

13. Maintenance of heat transfer equipment requires: Adequate knowledge of the equipment. Adequate knowledge of the equipment. Maximum set forth frequency Maximum set forth frequency Proper Inspection and Testing Proper Inspection and Testing Handling by qualified personnel. Handling by qualified personnel.