Why Choose Delayed Coking Unit Operations Training Course?
Delayed coking is a severe thermal conversion process used to upgrade heavy refinery residues into valuable lighter products and marketable petroleum coke. The unit plays an important role in increasing refinery conversion, reducing low-value fuel-oil production and improving overall profitability.
Delayed coking operations involve complex interactions between furnace performance, coke-drum cycles, fractionator conditions, feedstock quality and coke-handling systems. Operational problems such as furnace tube coking, coke-drum foaming, liquid carryover, uneven coke formation, fractionator fouling and delayed drum-cycle changes can restrict capacity and create significant safety and reliability risks.
This Delayed Coking Unit Operations Training Course provides comprehensive coverage of delayed coking process fundamentals, equipment, operating procedures, process control and troubleshooting. It enables participants to optimise unit performance, improve liquid yields and coke quality, reduce fouling, and safely manage coke-drum switching, decoking and start-up activities.
What are the Goals?
By the end of this training course, participants will be able to:
- Explain delayed coking chemistry and process fundamentals
- Evaluate the effects of feedstock properties on unit performance
- Describe the functions of the furnace, coke drums and fractionator
- Manage coke-drum filling, steaming, quenching and decoking cycles
- Optimise furnace operation and minimise tube coking
- Control coke-drum pressure, temperature and foam levels
- Improve liquid yields, coke quality and unit throughput
- Troubleshoot fractionator, gas-recovery and coke-handling problems
- Apply safe operating procedures during drum switching and decoking
- Identify opportunities to improve reliability and cycle duration
Who is this Training Course for?
This training course is suitable for:
- Delayed coking unit operators and supervisors
- Refinery process and operations engineers
- Production and shift engineers
- Process control and instrumentation engineers
- Maintenance and reliability personnel
- Inspection and mechanical-integrity engineers
- Refinery technical-services and optimisation teams
- Laboratory and product-quality personnel
- Health, safety and environmental professionals
How will this Training Course be Presented?
The course combines technical presentations with process-flow diagrams, equipment illustrations, operating-data analysis, calculations, group discussions, troubleshooting exercises and refinery case studies. Participants will examine delayed coking operating scenarios and develop appropriate corrective and preventive actions.
The Course Content
- Role of delayed coking within the refinery configuration
- Thermal cracking chemistry and reaction mechanisms
- Vacuum residue and other delayed coker feedstocks
- Effects of asphaltenes, sulphur, metals and Conradson carbon
- Delayed coking process flow and major equipment
- Operating pressure, temperature and recycle ratio
- Coker material balance and product-yield distribution
- Types, properties and commercial uses of petroleum coke
- Coker furnace design and operating principles
- Feed preheating and furnace charge preparation
- Furnace outlet temperature and cracking severity
- Burner operation, combustion control and heat distribution
- Steam injection, tube velocity and residence-time control
- Causes and indicators of furnace tube coking
- Monitoring tube-skin temperature and furnace pressure drop
- Online spalling, steam-air decoking and furnace optimisation
- Coke-drum filling and vapour-flow management
- Drum switching and feed-transfer procedures
- Steam stripping and hydrocarbon-vapour removal
- Water quenching and drum-cooling requirements
- Drum draining, opening and preparation for decoking
- Hydraulic coke cutting and coke removal
- Foam formation, antifoam injection and foam-level control
- Preventing coke carryover into downstream equipment
- Main fractionator configuration and operating principles
- Vapour quenching and fractionator heat balance
- Recovery of gas, naphtha, light gas oil and heavy gas oil
- Pump-around circuits, reflux and product-quality control
- Wash-zone operation and coke-deposition prevention
- Wet gas, sour-water and gas-recovery systems
- Coke cutting, crushing, dewatering and transportation
- Controlling coke properties and product specifications
- Troubleshooting low liquid yields and excessive coke production
- Diagnosing furnace fouling and high tube-skin temperatures
- Managing coke-drum hot spots, foaming and vibration
- Resolving fractionator fouling and separation problems
- Troubleshooting unstable pressure and temperature conditions
- Preventing water hammer, thermal shock and steam explosions
- Improving cycle time, energy efficiency and unit availability
- Integrated delayed coker troubleshooting case study
Certificate
- AZTech Certificate of Completion for delegates who attend and complete the training course
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