PROCESS CONTROL SYSTEMS
KEY PARAMETERS TO BE CONTROLLED ARE
•HP NH3 FEED TO
REACTOR
•N/C MOLAR
RATIO
•REACTOR
CONVERSION PER PASS
•SPECIFIC STEAM
CONSUMPTION
•1ST DECOMPOSER
STEAM CONSUMPTION
• 1ST SEPARATOR
TOP TRAY TEMP
•CARBAMATE
CONCENTRATION ANALYSER SCALE READING
•INTERNAL WATER
BALANCE CONTROL
•HYDROLYSER
STRIPPER TOP TRAY TEMP
•HYDROLYSER
STRIPPER FEED TRAY TEMP
•UREA RECYCLE
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