Fuel Oil Heating
Fuel Oil Heating
(OP)
Hi,
I´d like to know if anyone has experience with heating fuel oil in a convection section of a fired heater where the flue gas contains SO2.
The problem is the low tubewall temperature.
Is there adequate material, or do I have to heat it in an extra heat exchanger by steam?
Thanks for your help.
I´d like to know if anyone has experience with heating fuel oil in a convection section of a fired heater where the flue gas contains SO2.
The problem is the low tubewall temperature.
Is there adequate material, or do I have to heat it in an extra heat exchanger by steam?
Thanks for your help.
RE: Fuel Oil Heating
I have to ask,
[li]how will you control the heating? You usually have a constant flow of oil in a ring main where temperature is controlled by varying the steam flow. How would you vary the flue gas flow?(/li]
JMW
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RE: Fuel Oil Heating
Regarding the safety I have to admit that I haven´t really thought about this matter in this case so far, having in mind, that for example in cracking furnaces the naphtha is always preheated in the convection section.
Well, there is some diference between fuel oil and naphtha, so I will look at it . . .
The temperature control should be done by bypassing the flue gas.
Thanks for your hints!
us1612
RE: Fuel Oil Heating
Several months passed until operators noticed the loss of about 4 ton/h steam to the atmosphere.
BTW, because of the low feed temperature, it entered first the radiant section at the bottom (!) near the floor-located vertical burners.