A methodology for overall consequence modeling in chemical industry

Risk assessment in chemical process industry is a very important issue for safeguarding human and the ecosystem from damages caused to them. Consequence assessment is an integral part of risk assessment. However, the commonly used consequence estimation methods involve time-consuming complex mathema...

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Bibliographic Details
Published in:Journal of hazardous materials 2009-09, Vol.169 (1), p.556-574
Main Authors: Arunraj, N.S., Maiti, J.
Format: Article
Language:English
Subjects:
Accidents, Occupational
Applied sciences
Asset loss
Benzene
Benzene extraction unit
Chemical engineering
Chemical Hazard Release
Chemical Industry - methods
Consequence modeling
Exact sciences and technology
Fuzzy composite programming
Human health and safety loss
Methods
Models, Theoretical
Monte Carlo simulation
Pollution
Production loss
Risk Assessment
Safety
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Summary:Risk assessment in chemical process industry is a very important issue for safeguarding human and the ecosystem from damages caused to them. Consequence assessment is an integral part of risk assessment. However, the commonly used consequence estimation methods involve time-consuming complex mathematical models and simple assimilation of losses without considering all the consequence factors. This lead to the deterioration of quality of estimated risk value. So, the consequence modeling has to be performed in detail considering all major losses with optimal time to improve the decisive value of risk. The losses can be broadly categorized into production loss, assets loss, human health and safety loss, and environment loss. In this paper, a conceptual framework is developed to assess the overall consequence considering all the important components of major losses. Secondly, a methodology is developed for the calculation of all the major losses, which are normalized to yield the overall consequence. Finally, as an illustration, the proposed methodology is applied to a case study plant involving benzene extraction. The case study result using the proposed consequence assessment scheme is compared with that from the existing methodologies.
ISSN:0304-3894
1873-3336
DOI:10.1016/j.jhazmat.2009.03.133