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Platforming Fired Heater
Started by mhamdi khaled, Nov 16 2016 12:36 PM
4 replies to this topic
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#1
Posted 16 November 2016 - 12:36 PM
Dears,
in the platforming unit the light naphtha coming from the first reactor with: T = 430 °c enter to the second section of the fired heater ( low part of radiant section) to get the energy and exit ( from the heighest level of radiant section) with T = 506 °c. the question is why the stream enter from the lowest part of radiant section ( not the heighest part).
note: cabin fired heater with horizental tubes and horizental burners (devided to three section).
thanx.
in the platforming unit the light naphtha coming from the first reactor with: T = 430 °c enter to the second section of the fired heater ( low part of radiant section) to get the energy and exit ( from the heighest level of radiant section) with T = 506 °c. the question is why the stream enter from the lowest part of radiant section ( not the heighest part).
note: cabin fired heater with horizental tubes and horizental burners (devided to three section).
thanx.
#2
Posted 16 November 2016 - 05:36 PM
Why Not?
#3
Posted 16 November 2016 - 11:10 PM
Probably piping. If the inlet to reactors is from the top and outlet from the bottom, it makes sense to simplify the piping by sending from bottom of reactor 1 to bottom of heater and from top of heater to top of reactor 2.
#4
Posted 17 November 2016 - 01:19 AM
boby,
normally the feed enter by heighest part of the radiant section because the skin points there is lower than meduim and low part.
normally the feed enter by heighest part of the radiant section because the skin points there is lower than meduim and low part.
#5
Posted 17 November 2016 - 01:39 AM
Saml,
thank you for your response, but why we don't respect the temperature distribution in the radiant section.
thank you for your response, but why we don't respect the temperature distribution in the radiant section.
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