The HAZOP study is conducted to examine the overall process design, searching for operating deviations and process interactions that can lead to hazardous situations or operability problems, which include:
Review of the design and operation of process facility
Damage to equipment/asset/environment
Plant non-availability/limitation and lack of product quality
To identify all possible causes of deviations from normal operation that could lead to any safety hazard, environmental risk or operability problem
Identification of hazards, possible causes and consequences and suggest recommendations for necessary changes/ alterations
Critical examination of the process and the engineering intentions to assess the hazard potential or mal-operation or mal- function of individual items of equipment and the consequential effects on the facility as a whole.
Objective of the HAZOP Study
The objectives of the HAZOP study is to:
Check the design and consider whether any of the deviations, which may occur, either from a malfunction or mal-operation, may cause a hazard to people working on the installation or to the plant.
It accommodates the status of recognized design standards and codes of practice but rightly questions the relevance of these in specific circumstances where hazards may remain undetected.
Check whether the precautions incorporated in the design are sufficient to either prevent the hazard occurring or reduce any consequence to an acceptable level.
Ensure that the process can be functionalized and maintained safely.