Dynamic behavior of coke drum process safety valves during blocked outlet condition in the refinery delayed coking unit
| Autor: | Hessam Vakilalroayaei, Mazda Biglari, Ali Lohi, Ali Elkamel |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Engineering
Waste management Petroleum engineering business.industry General Chemical Engineering Energy Engineering and Power Technology Coke Drum Management Science and Operations Research Industrial and Manufacturing Engineering Refinery Upset Overpressure Process safety Control and Systems Engineering Delayed coker Safety Risk Reliability and Quality business Safety valve Food Science |
| Zdroj: | Journal of Loss Prevention in the Process Industries. 25:336-343 |
| ISSN: | 0950-4230 |
| Popis: | The design of Delayed Coking Unit of a refinery is a challenging project. This study highlights some of the design considerations in the delayed coking unit with an emphasis on process point of view and more specifically on the relief conditions of coke drums operating under an upset event which results in overpressure of coke drums. The results provided a practical and useful approach to control release of hot and heavy hydrocarbons to minimize their environmental impact. Blocked outlet conditions of normally open path of coke drum to the main fractionator is a critical issue in a refinery. Pressure safety valves calculations were carried out to address their dynamic behavior. It was assumed that the operating team will recognize the problem with sudden abnormal pressure fluctuations and intervene the upset condition in less than 15 min. A HYSYS simulation helped us to analyze the problem in more details. |
| Databáze: | OpenAIRE |
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