Discussion of Inherently Hazards Maintainability, Error Prevention, and Error Recovery.
Chemical processes usually have many potential hazards, and a change which reduces one hazard may create a new one or increase the magnitude of a different existing hazard. It is essential that the process designer retain a broad overview of the process when considering alternatives that he/she remains aware of …
The search for inherently safer process options must begin early in the process life cycle, and never stop. The greatest potential opportunities for impacting process design occur early in the invention and development of processes. It is never too late to consider inherently safer alternatives.
This part 2 discusses the role of inherently safer design concepts in process risk management. How process risk management strategies can be categorized, in order of decreasing reliability, as inherent, passive, active, and procedural.
Inherently safer design represents a fundamentally different approach to chemical process safety. Rather than accepting the hazards in a process, and then adding on safety systems and layers of protection to control those hazards, the process designer is challenged to reconsider the process and eliminate the hazards.