Question
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In our Delayed Coker unit Furnace, Plate type APH supplied by GEA Eco flex India Pvt Ltd is installed. Since last few months we are unable to increase Induced draft fan suction temperature as per our process requirement (To maintain acid dew point delta). Keeping in view of not increasing suction temperature we suspecting this furnace Combustion air APH may be leak and during furnace pigging/shutdown opportunity we thoroughly checked this APH but couldn’t find the leak If anyone having experience/expertise in above described matters, kindly share with us (like how to identify leak in furnace APH and what is standard practice follow to arrest the leak) Your valuable response will be appreciated!
Mar-2022
Answers
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Joseph Gentry, GTC Vorro Technology, jgentry@gtcvorro.com
I suggest a solution pathway which is to challenge the requirement for acid gas dewpoint delta. If you remove all of the sulphur components from the fuel gas, this restriction can be eliminated. Solutions from the SweetTreat™ family of GTC Vorro Technology can help.
Mar-2022
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