Hydrocracking in the oil & gas industry

High pressure and temperature monitoring

Hydrocracking is a second catalytic cracking process applied typically to the heavy vacuum gas oil, a sidecut from the vacuum distillation column. When the oil is mixed with hydrogen and passed over a catalyst, the long chain hydrocarbon molecules are broken down into shorter ones. The rate of cracking and the end products of the hydrocracking are strongly dependent on the temperature and the catalysts present. In Hydrotreatment, a similar cracking process (already described in Section 4.3), the hydrogen is used to break the C-S and C-N bonds: in Hydrocracking the desired break is in the C-C bonds, and the major products are usually jet fuel and diesel. Hydrocracking is therefore used in areas where there is a large demand for diesel fuel. Where the major market demand is for gasoline (petrol) the fluid catalytic cracking process (FCC) is more common.

Requirements
  • Continuous measurement to adjust level in the separator
  • Varying levels of oil and water
Requirements
  • Buildup
  • Sudden process changes
Requirements
  • Process control
  • Low density gas
Requirements
  • Prevent overfill
  • Determine level in scrubber
Requirements
  • Determine amount of water
  • Enable process control
Requirements
  • Continuous measurement to adjust level in the separator
  • Varying levels of oil and water
Requirements
  • High temperature medium
  • Process control
Requirements
  • Continuous measurement to adjust level in the separator
  • Varying levels of oil and water
Requirements
  • Process control
  • Help to maintain mass balance
Requirements
  • Process control
  • High temperature
Requirements
  • Visualisation and monitoring of critical processes
  • Control of reporting, trends and alarm handling
  • Statistical evaluation of measurement data
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