Naphtha Cracking Furnace - YOKOGAWA EXAxt ZR22G Technical Information

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Naphtha cracking furnace

This is the first process in a petrochemical facility, in which the Naphtha supplied from the
petroleum refinery is heated and cracked to produce a variety of products. There will be not just
one but rather anywhere from six to twelve fired heaters, each with its own stack.
Analyzer installation
locations
Cracking furnace
Naphtha
Heat Exchanger
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Sample point
Fired Stack or
heaters convection
Quench Tower
Settler
Cooler
Naphtha cracking furnace
Temperature: Stack: 300 to 600°C
Pressure: −0.2 to 0 kPa
Dust: 1 g/Nm
System type
L2, L3
H2, H3
Explosion-proof type external
terminal box may also be selected
Depropanizer
Convection: 600 to 1100°C
3 max.
<4. Applications>
Detector
D1, D2 Combustion
D5, D6
Hydrogen
splitter
Propylene
Cracking gasoline
F0412.ai
TI 11M12A01-01E
4-12
Objective
monitoring
Hydrogen
Methane
Ethylene
Ethane
LPG
C4
Heavy oil
Mar. 14, 2017-00