Evaluation of Hazard Distances Related to Toxic Releases in a Gas Refinery: Comparison of Chemical Exposure Index and Consequence Modeling Approaches.

Evaluation of Hazard Distances Related to Toxic Releases in a Gas Refinery: Comparison of Chemical Exposure Index and Consequence Modeling Approaches. Int J Occup Saf Ergon. 2019 May 17;:1-21 Authors: Cheraghi M, Bagherian-Sahlavani A, Noori H, Mohammad-Fam I Abstract The release of toxic chemicals is an important hazard of chemical plants. The purpose of this study is to compare Chemical Exposure Index (CEI) and a consequence modeling to determine the hazard distance of toxic chemical release, utilizing a gas refinery as the case study. The CEI was utilized and considerable release scenarios were determined. The PHAST model was performed for consequence modeling of the scenarios with highest airborne quantity. In the case of toxic chemical release based on both CEI and consequence modeling, the sludge catcher unit identified as the most dangerous unit. Hazard distances calculated by the CEI are significantly greater than consequence modeling. This is acceptable in terms of safety, but it may not be applicable in reality. The results of study showed a procedure for selecting an appropriate method in order to reduce costs and time. PMID: 31100043 [PubMed - as supplied by publisher]
Source: International Journal of Occupational Safety and Ergonomics - Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research