The modern batch chemical processing plants have a tendency of increasing
technological complexity and flexibility which make it difficult to control the
occurrence of accidents. Social and legal pressures have increased the demands
for verifying the safety of chemical plants during their design and operation.
Complete identification and accurate assessment of the hazard potential in the
early design stages is therefore very important so that preventative or protective
measures can be integrated into future design without adversely affecting
processing and control complexity or capital and operational costs. Hazard and
Operability Study (HAZOP) is a method of systematically identifying every
conceivable process deviation, its abnormal causes and adverse hazardous
consequences in the chemical plants. [Continues.
