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Investigation of a pyrophoric iron fire in a Visbreaker fractionation column provides better cleaning work procedure |
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| Institution: | 1. Nuclear Research Center of Draria (CRND/COMENA), Sebala, Draria PO Box 43, Algiers, Algeria;2. National Polytechnic School of Algiers (ENP), 10 Hassen Badi, PO Box 182, El Harrach, 16200 Algiers, Algeria;3. University of Bouira, Algeria;1. Department of Electrical and Electronics Engineering, Bilkent University, Ankara, Turkey;2. Turk Telekom Communications Services Inc., Istanbul, Turkey |
| Abstract: | An unexpected ignition of pyrophoric iron sulphide deposits took place in the fractionator of a Visbreaker unit. The distillation column had been chemically decontaminated prior to the event. The investigation of the event leads to conclusions concerning chemical decontamination limitations in vessels in coking service. Based on the lessons learned from this case, a prioritization of manual vessel cleaning works in coking service is proposed. |
| Keywords: | Safety Visbreaker Fractionation Pyrophoric iron sulphide Chemical decontamination |
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