Delayed coking in the oil & gas industry

High temperature toleration

The Delayed Coking process is applied to the residual heavy oil, also called residuum feed, which emerges from the bottom of the vacuum distillation column. Via the bottom feed from a further fractionator column, this is fed, with steam, to another furnace and into coke drums. This cracks the heavy, long chain hydrocarbon molecules into coker gas oil and solid petroleum coke. The solid coke deposit remains in the coke drum, and the gas oil and lighter components in the vapour phase are fed back to the fractionator, to separate out the light gas oil, heavy gas oil and naphtha.

Requirements
  • Ensure optimized burner control
  • Fluctuating operating conditions
Requirements
  • High temperature
  • High viscosity
  • Risk of blockage
Requirements
  • Continuous measurement to adjust level in the separator
  • Varying levels of oil and water
Requirements
  • Determine the performance of the process
  • Agressive medium
Requirements
  • Process control
  • Prevent overfill
Requirements
  • Could be very high temperature
  • Process control
Requirements
  • Maintain mass balance
Requirements
  • Buildup
  • Sudden process changes
Requirements
  • Process control
  • Fluid contains traces of hydrocarbons
  • Agressive medium
Requirements
  • Visualisation and monitoring of critical processes
  • Control of reporting, trends and alarm handling
  • Statistical evaluation of measurement data
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