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Process Safety Management

Process Safety Management. Initial Training. Highly Hazardous Chemicals (HHCs). A HHC is any substance that is: Toxic Reactive Flammable Explosive. 1a. Highly Hazardous Chemicals (HHCs). Examples of HHCs include: Anhydrous ammonia Hydrogen sulfide Chlorine. 1b.

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Process Safety Management

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  1. Process Safety Management Initial Training

  2. Highly Hazardous Chemicals (HHCs) • A HHC is any substance that is: • Toxic • Reactive • Flammable • Explosive 1a

  3. Highly Hazardous Chemicals (HHCs) • Examples of HHCs include: • Anhydrous ammonia • Hydrogen sulfide • Chlorine 1b

  4. Highly Hazardous Chemicals (HHCs) • When released, HHCs have the potential to cause catastrophic incidents resulting in injury/death 1c

  5. Process technology • A comprehensive assessment of a particular process • Materials used in the process • Complexity of the process 2a

  6. Process technology • Age of the process • Past history of the process • Maximum inventory levels for process chemicals 2b

  7. Process technology • Extent of the process hazards • Number of potentially effected employees 2c

  8. Process equipment • Use equipment adequate for the tasks performed • Materials of construction • Piping and instrument diagrams 3a

  9. Process equipment • Electrical classification • Relief system design • Ventilation system design 3b

  10. Process equipment • Design codes and standards • Safety systems, such as interlocks, detection, suppression 3c

  11. Operating procedures • Provide clear instruction for safely conducting all activities in a process 4a

  12. Operating procedures • Operating procedures must address the following: • Operating limits • Safety and health considerations • Safety systems and their functions 4b

  13. Operating procedures - phases • Initial startup • Normal operations • Temporary operations • Emergency shutdown 4c

  14. Operating procedures - phases • Emergency operations • Normal shutdown • Startup following a turnaround • Startup following an emergency shutdown 4d

  15. Operating limits • Be aware of the operating limits of a process • Operating limits - related issues may include: • Voltage limits of the equipment • Amperage limits of the equipment • Phase limits of the equipment 5a

  16. Operating limits Questions regarding the process chemical limits might include: • Can the equipment handle the properties of the chemical being used in the process? • Does the process maintain the proper physical properties of the chemical? 5b

  17. Operating limits • Does the process cause the chemical to break down? • Does the process cause the chemical to boil or freeze? 5c

  18. Safety and health considerations • Safety and health considerations include anything that is likely to cause: • Acute or chronic health problems; or • Process-related injuries or accidents 6a

  19. Process safety systems • Provide information about safe work practices • Necessary for controlling hazards during process operations 7a

  20. Process safety systems • Safety systems ensure that: • All operating procedures reflect current operating practices • Changes to processes resulting from changes in process chemicals are explained • Changes in technology, equipment, or the facility are communicated 7b

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