ENS5166 Process Design

HAZOP: Hazard and Operability Study

HAZOP is a systematic technique to identify potential hazards and operability problems caused by deviations from the design intent of process plants.

Main objective and benefits of HAZOP

Objective: Identifying the cause and consequences of possible mal operations of different equipment and operator errors in the context of the entire process.

Examples of Benefits: Greater Safety

Creativity in design concept evaluation

Fewer commissioning and operational problems Overall cost-effectiveness improvement

Elimination or reduction of possibility of operating deviations

Providing evidence of comprehensive thoroughness (often can be used as a management tool in cases of insurance and inspections)

Questions

1: How deviations from the design intent can arise?

2: Can such deviations impact safety and operability?

3: What actions are necessary?