Sir,
In our plant we have a EDC cracking furnace of capacity 5 tonnes/hr. the furnace is radiant wall cabin type. There are 24 burnerns in three rows using superior kerosene as a fuel.
The design kerosene flow in each row is given below
Top row - 1.5 gallons/hr
Middle row - 3 gallons/hr
Bottom row - 4.5 gallons/hr
In top row instead of 1.5 gallons/hr of kerosene the flow was increased. Because of this the coke formation was so frequent so we isolated the top row burners. Now the stack temperature has increased to 400oC .
Do the isolation of the top row burners have any impact in the stack temperature?