detect and identify radiometric level measurement in coke chambers
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![Page 1: Detect and identify Radiometric Level Measurement in Coke Chambers](https://reader036.vdocument.in/reader036/viewer/2022062714/56649d0f5503460f949e522c/html5/thumbnails/1.jpg)
detect and identify
RadiometricLevel Measurementin Coke Chambers
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Conditions in the coke chamber
Diameter of Coker approx 7m, height approx 20m
Temperature up to 430 degrees Celsius
Pressure up to 22 bar during cracking process and up to 300 bar water jet during dicharging process
Critical product properties of residues
Extraordinary mechanical strain during discharging process
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Requirement on Level Measurement
Non contact measurement system
Reliable measurement system
Safe measurement system
Proven measurement system
Radiometric Level Measurement from Berthold Technologies is the solution
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Process in the Coke Chamber
Hot residual is filled from the bottom
Coker is heated up to 430 degrees Celsius
Pressure drops from 22 bar to 4 bar
Heavy fuels are separated into low and high boiling components
Light components are drained off via a nozzle on the top
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Process Requirement
Fast filling cycle of the Coker required for economical reasons
Filling process is restricted by foam formation
Optimization of filling and discharging process in coke chamber
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Process Optimization
Optimization of filling and discharging process by continuous level measurement
Control of foam level by controlled injection of anti-foam agent
Additional safety feature by max level switch
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Measuring Tasks
Continuous Level Measurement
Measurement of the total level coke/oil/foam-content with radiometric measurement system
Indirect measurement of the foam level by observing and analysing rising speed of the level
Detection of Maximum Level
Radiometric level switch below process gas stub pipe
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The Filling Process Start of continuous level measurement
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The Filling Process Continuous level measurement
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Measurement System for Level Measurement in Coke Chamber
Continuous level measurement
LB 440 control unit master and slave
Rod detectors LB4405 in cascade
Point source in shielding Typ 100/150/200
Level Switch
LB 441 control unit
Point source in shielding LB7440/7442/7444
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Benefits
Filling and discharging process can be optimized by continuous level measurement
Safes money and time
Indirect determination of foam level is possible
Injection of anti-foam agent can be controlled, safes money
Overflow detection by max level switch
Safety of process