Measuring the level in delayed coking units

Measuring the level in delayed coking units

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Residues are cracked or converted in the delayed coking unit. The heated residues are fed to the coke drum where they are cracked into light more valuable hydrocarbon chains and the extra carbon is rejected. Solid coke remains in the drum which slowly fills up. The radiometric level technology from Berthold is ideal for monitoring the coke level due to its non-intrusive nature. Since large temperature variations through the whole operational cycle of a coke drum are a known issue to the operators, our patented automatic stabilization technology based on cosmic radiation has proven to be the most important feature to guarantee a stable and reliable level measurement without the need for recalibration. Separate level alarms ensure additional process safety. The same applies for the fractionator. Our level gauges are used to monitor the bottom liquid level – an important parameter for the efficient control of the complete coking cycle. The measurement is unaffected by surface turbulences, product falling down from the trays, different product densities or scaling/coking.

Measuring the level of coke drum in a delayed coking unit


Measuring the level of coke drumMeasuring the level of coke drum Residues are upgraded in the delayed coking unit. The heated residues are fed to the coke drum where the last volatile components are gathered. Solid coke remains in the drum which slowly fills up. The radiometric level technology from Berthold is ideal for monitoring the coke level due to its non-contacting, non-intrusive nature. Separate level alarms ensure additional process safety.

 

Level measurement in a delayed coker unit - customer benefit
 

  • Reliable level control
  • Improved utilization of drum capacity
  • Efficient use of anti-foam agent
  • Increased throughput
  • Safe operation

 

Characteristics of Berthold level measurement in delayed coking units - coke drum

 

 

Measuring the level of bottom liquids in the fractionator


Level Measurement in the fractionatorLevel Measurement in the fractionator The fractionator is another crucial part of the delayed coking unit. The Berthold radiometric level gauges are used to monitor the bottom liquid level – an important parameter for the efficient control of the complete coking cycle. The use of SIL2 certified detectors satisfes the need for a safe and reliable operation.

Level Measurement in the fractionator - Customer benefit
 

  • Efficient control of coker feed
  • Increased process safety and reliability
  • Safety prevents from liquid carry-over into the vapor inlets
  • Ensures minimum liquid head for the coker charge pump
     

Characteristics of Berthold level measurement in delayed coking units - fractionator

  • Non-contacting, non-intrusive level measurement
  • Not affected by surface turbulences, sprinkler rain, different product densities or
    scaling / coking
  • Highest sensitivity due to solid scintillators leading to significantly lower source activities
  • High repeatability and long-term stability
  • SIL certification available
  • Minimizes NDT interference with internal proprietary algorithms
  • Gas property compensation (GPC) - compensation of gas density variations for the continuous level measurement

 

 

 

Tabs

Detectors

TowerSENS Detector

With a max. length of 8 m - the rod detector is specifically designed to monitor long measuring ranges
Download
Application Report
Format Size
Level Measurement of coke drum level en PDF 694.69 KB
Solutions for Refineries Level, Multiphase Level and Density Measurement de, en PDF 6.64 MB
Brochure
Format Size
Application Desalter en PDF 812.93 KB
Solutions for Refineries Russian language en PDF 3.97 MB
Whitepaper Multiphase Level Measurements Improving level control in desalters to aid in use of opportunity crudes de, en PDF 3.52 MB