Coke drum operation
WebDuring operation, a drum is filled with the solid coke until it is filled completely. Since the coking drums are connected to the continuously operating fractionator (distillation column), the reactors are filled and emptied in an alternating fashion. The emptying and preparation procedure consist of the following phases: WebAug 19, 2024 · Normal Operation Cycle (2002–2010) During normal operation of coke drum starting from 2002 to 2010, it was found areas with bulges in courses numbers 1 and 2 from bottom; the bulges found in both drums with no cracks noticed at that time in the circumferential welds in the coke drum shells; the profile was like an elephant skin as it …
Coke drum operation
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WebSep 4, 2014 · Coke drums undergo cyclic operations typically in the temperature range from room temperature to about 500 °C (930 °F). During quenching, the coke drum is inevitably subjected to a rapid drop in temperature because cooling water is injected directly into the coke drum through the bottom inlet nozzle. The temperature profile on the shell … Web2. Monitoring system for vibration safety analysis. To understand the change in the dynamic characteristics of the coke drums and to evaluate the vibration safety for all operating processes in the operating state, the schematic diagram of the proposed monitoring system is presented in Figure 1(b).As shown in Figure 1(a), the operation of the system affects …
WebCoke drums operate in pairs, with one drum being filled at a time, while the coke in the other drum is being quenched, cut, and emptied from the drum. The cok- ing cycle is roughly half the time of the complete operation. Cycle times vary … WebOct 2, 2015 · Successful coker feed injection can result in reliability and stream factors improvements which flow to the refiners bottom line. Technologies considered must include flow analysis, dual side entry …
WebDec 29, 2024 · One drum will be under coking process whereas the other drum will be under decoking process. Hot feed enters the empty drum cracking reaction takes place … WebTo change (increase) pressure to reduce coke drum superficial velocity, thereby allowing higher feed rate as required. To set operating pressure to achieve overall optimum …
WebFirst, a vertical hole is drilled into the coke bed with a downward water jet nozzle. This is followed by the cutting operation in which a horizontal water jet slices top down to ream out the drum up to the wall until the drum is empty. The resulting coke chunks are flushed through the drilled hole. Open coke handling is a burden on the environment
WebMost existing coke drums were not designed for low-cycle fatigue, which did not become an issue until drums began operating on shorter cycles which increased local stresses … hal refWebThe work process also facilitates multi-disciplinary discussions between site personnel. Reliable operation of coke drums requires good communication across disciplines to … hal reed bluesWeboperation, involving both batch and continuous stages. The batch stage of the operation (drum switching and coke cutting) presents unique hazards and is responsible for … burlington in palmdale caWebTo prepare the cold empty coke drum to be put back on-line to receive the hot feed, hot vapors from the on-line drum are circulated into the cold empty drum. The hot 415 °C … hal reed actorWebAug 31, 2010 · Coke drums experience severe thermal and mechanical loadings during operation, and the reliability and safety of the coke drums are critical to the industry. … hal reid artistWebshould include remote hydraulic operation for the coke chute. The coke drum bottom inlet should be provided with a device that minimizes the likelihood of loose shot coke BB’s or … burlington in ontario caWebJan 26, 2016 · The purpose of controlling the contents within a coke drum is to: maximize the outage (amount of hydrocarbons treated during each batch), minimize the anti-foaming quantity to be used, and avoid “foam over.” Two technologies are usually applied to coke drums to determine their contents: neutron backscatter and gamma transmission. hal reiff artist