Transcription of Tutorial: Delayed Coking Fundamentals - Campus Tour
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1 Tutorial: Delayed Coking FundamentalsPaul J. EllisChristopher A. PaulGreat Lakes Carbon CorporationPort Arthur, TXPrepared for presentation at the AIChE 1998 Spring National MeetingNew Orleans, LAMarch 8-12, 1998 Topical Conference on Refinery ProcessingTutorial Session: Delayed CokingPaper 29aCopyright 1998 Great Lakes Carbon CorporationUNPUBLISHEDM arch 9, 19982 ABSTRACTG reat Lakes Carbon Corporation has worked closely with refineries producing Delayed coke in all forms,fuel grade (shot or sponge), anode grade (sponge), and electrode grade (needle) since start-up of thecompany's first calcining operation in 1937. With on-going research in the area of Delayed Coking since 1942,Great Lakes Carbon (GLC) has operated Delayed Coking pilot units including an excellent large-scale pilotunit with a coke drum meter (1 ft) diameter by meters (7 ft) long and has developed physical modelswhich explain coke formation in coke of commercial Delayed Coking units as well as that of the GLC Pilot Delayed Coker is used inthis tutorial paper to describe the formation and uses of the three types of structures of Delayed petroleumcoke: needle, sponge, and shot.
Delayed coking is a thermal cracking process used in petroleum refineries to upgrade and convert petroleum residuum (bottoms from atmospheric and vacuum distillation of crude oil) into liquid and gas product streams leaving behind a solid concentrated carbon material, petroleum coke. A fired heater with horizontal tubes
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