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    Anatomy of a domino accident: Roots, triggers and lessons learnt

    , Article Process Safety and Environmental Protection ; Volume 90, Issue 5 , 2012 , Pages 424-429 ; 09575820 (ISSN) Abdolhamidzadeh, B ; Hassan, C. R. C ; Hamid, M. D ; Farrokhmehr, S ; Badri, N ; Rashtchian, D ; Sharif University of Technology
    On July 24th, 2010, several explosions and fires devastated a hydrocarbon processing plant in Kharg Island, Iran. Four workers were killed and many others were severely injured. The plant became out of service for 80 days. The way the accident happened and its sequence was representing as a domino accident. In this paper, events leading up to the disaster have been analyzed in details. Graphic presentation techniques such as Fish Bone Analysis and Event Sequence Diagram (ESD) have been utilized to enhance the understanding of the accident mechanism. Finally major lessons learnt from this domino accident have been addressed  

    Coke formation possibility during production of reducing gas in large scale direct reduction plant

    , Article Ironmaking and Steelmaking ; Volume 34, Issue 2 , 2007 , Pages 115-123 ; 03019233 (ISSN) Sadri, M ; Vakhshouri, K ; Hashemi, M. M. Y. M ; Sharif University of Technology
    For the production of synthesis gas utilised in Midrex direct reduction plants, catalytic steam/CO2 hydrocarbon reforming in tubular reformer is the major process. Owing to the high heat input through the Midrex reformer tube wall, the endothermic nature of reforming reactions, low mass velocity of feed gas and large tube diameter, the catalyst bed is exposed to considerable axial and radial temperature gradients. These radial concentration and temperature gradients may create local areas with potential for carbon formation. To investigate this phenomenon, a rigorous two-dimensional model is developed for simulating the operation of a Midrex reformer which applies a dual catalyst loading... 

    Estimation of underground interwell connectivity: A data-driven technology

    , Article Journal of the Taiwan Institute of Chemical Engineers ; Volume 116 , 2020 , Pages 144-152 Jafari Dastgerdi, E ; Shabani, A ; Zivar, D ; Jahangiri, H. R ; Sharif University of Technology
    Taiwan Institute of Chemical Engineers  2020
    Water injection into petroleum reservoirs is widely performed around the world for enhancing oil recovery. Understanding the underground fluid path is an important factor in improving reservoir performance under waterflooding operation. This may be used to optimize subsequent oil recovery by changing injection patterns, assignment of well priorities in operations, recompletion of wells, targeting infill drilling, and reduce the need for expensive surveillance activities. Most of the hydrocarbon reservoirs are equipped with sensors that measure the flow rate, pressure, and temperature in the wellbores continuously. Valuable and useful information about the interwell connections can be...