Consequence Modeling of a Rupture of Methyl Diethanolamine (MDEA) Storage Spherical Tank (Catastrophic Rupture Scenario)

Document Type : Original Article


1 Department of Chemical Engineering, Ilam University, Ilam 69315-516, Iran

2 Department of Chemical Engineering, Ilam University, Ilam, Iran

3 Department of Chemical Engineering, Eyvan-e-Gharb Branch, Islamic Azad University, Eyvan 694111-1359, Iran


The rupture of flammable materials is one of the significant hazards existing in huge industry. In this study, the rupture of methyl diethanolamine (MDEA) tank in Ilam gas treatment refinery was modeled by PHAST (Process Hazard Analysis Software Tool) software. Distances with high risk was determined in fire and explosion scenarios versus consequence modeling. The results revealed that the catastrophic rupture scenario of MDEA tank in summer climates is the worst case with the highest risk, since in this case, the affected distance is about 2,450 meters for explosion overpressure, and 840 meters for vapor release; thus, these distances should be nonresidential. By considering a bund wall around the tank, the abovementioned distance reduce to 1,860 meters for explosion overpressure and 780 meters for vapor release.


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Volume 12, Issue 2
June 2022
Pages 213-221
  • Receive Date: 31 July 2019
  • Revise Date: 27 October 2019
  • Accept Date: 30 November 2019
  • First Publish Date: 01 June 2022