Author(s): A. Quintana, L. López-Doval, R. Rodríguez, J. A. Souto
& J. J. Casares
The fast evolution of the industry technology as a whole and, particularly, of that
associated to the chemical processes, its rapid growth and the resulting increase
in chemical products inventories in industrial plants and transport, has increased
the probability of severe accidents, and the magnitude of their consequences.
purpose of this study is to verify the application of a regulation based on
deterministic methods to guarantee the safety of the environment and inhabited
areas around an industrial facility.
The study is focused on a chemical plant for
resins production, where hazardous chemical substances are processed and
stored, such as methanol, formaldehyde, vinyl acetate monomer (VAM) and
The HAZOP deterministic methodology is used to analyse potential
accidents and, afterwards, to determine the magnitude of their consequences.
In this study, accidents that would create a toxic cloud and its following
dispersion into the atmosphere are considered.
Therefore, a regulatory
atmospheric dispersion model has been applied.
Depending on the type of
accident, the chemical substances involved and the atmospheric conditions of the
area, the software calculates how surrounding areas are affected.
concentration of toxic substances at a certain distance can be determined in order
to evaluate the percentage of population affected by the dispersion of the toxic
hazardous chemical, consequence analysis, risk analysis, hazard
analysis, chemical accident.
Size: 590 kb
Paper DOI: 10.2495/RISK060041
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