Page 323 - Design of Simple and Robust Process Plants

8.3 Automation of Operation 309

Fig. 8.11. Layers of protection in a chemical plant (Ref. CCPS '93 AIChE).

Process risk management strategies

Inherent Passive Active Procedural

Minimize
Inherently
Safer Substitute
Design
Strategies
Moderate

Simplify

Fig. 8.12. Relation of process risk management strategies
versus the inherently safer design strategies (Ref. CCPS '96 AIChE).