Q & A

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This face to face interactive event, features experts from leading European refineries and technology providers; engineers will have the chance to hear unparalleled knowledge through interactive discussions such as fishbowl panels, Q&A Panels and Poster Sessions. Learn more here: asktheexperts.wraconferences.com  


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Recent Questions
Date  Replies
20/05/2018 Q: We are using born heaters for CRU unit where all heaters inlet lines are covered with ceramic fiber Jacket as air seal purpose but few outlets pipeline from radiation section are not covered. Currently bluish flame is observed coming out from gap/clearance between the outlet pipe and and heater shell casing pipe during night time. What could be the reason for that (from 3rd Heater which has no convection section but has common stack with 1st & 2nd heaters) ?
Another day in the same heater, red hot spot at the inlet of pilot line (pressurized ) was observed and became normal just after the pilot air line had been isolated/closed. But at the pilot inlet found little flame coming out from pilot fuel gas line and disappeared when pilot fuel was isolated. Although pilot should remain close just after the main burner lighted but in our case we keep the pilot in on position all the time. What could be the reason of this red hot spot?
We have VFD operated blower , some time blower noise becomes very high and try to reduce the noise by adjusting the VFD speed . So, what could be the reason for high sound ?
(2)
16/05/2018 Q: What will be the approach or methodology to work when serving a rotary atomising burner burner of a steam boiler?
 
13/05/2018 Q: What are the differences between hydrogenation and hydrodesulphurization? (2)
12/05/2018 Q: In case of fluidized naptha cracking heat balance is an isssue, where not enough coke is generate to provide the endothermic heat. In such cases can pet coke be used in the regenerator to produce the reequired heat? If Possible what adverse effects can it have?  
11/05/2018 Q: What is the temperature and pressure maintained in the fractionator of a delayed coker unit? Does it not cause premature thermal cracking of the reduced crude oil even before it enters the coke drums? (3)
Recently Answered Questions
Date  Replies
20/05/2018 Q: We are using born heaters for CRU unit where all heaters inlet lines are covered with ceramic fiber Jacket as air seal purpose but few outlets pipeline from radiation section are not covered. Currently bluish flame is observed coming out from gap/clearance between the outlet pipe and and heater shell casing pipe during night time. What could be the reason for that (from 3rd Heater which has no convection section but has common stack with 1st & 2nd heaters) ?
Another day in the same heater, red hot spot at the inlet of pilot line (pressurized ) was observed and became normal just after the pilot air line had been isolated/closed. But at the pilot inlet found little flame coming out from pilot fuel gas line and disappeared when pilot fuel was isolated. Although pilot should remain close just after the main burner lighted but in our case we keep the pilot in on position all the time. What could be the reason of this red hot spot?
We have VFD operated blower , some time blower noise becomes very high and try to reduce the noise by adjusting the VFD speed . So, what could be the reason for high sound ?
(2)
13/05/2018 Q: What are the differences between hydrogenation and hydrodesulphurization? (2)
11/05/2018 Q: What is the temperature and pressure maintained in the fractionator of a delayed coker unit? Does it not cause premature thermal cracking of the reduced crude oil even before it enters the coke drums? (3)
05/05/2018 Q: In our Propylene Recovery Unit (PRU) why is reflux drum mounted above the condenser? It means condenser on ground floor and reflux drum above the condenser, but other distillation column generally condenser on top and reflux drum below the condenser. (3)
10/05/2018 Q: I have read somewhere that; "Steam is injected in the furnace to prevent premature coking".
How is that possible?
(2)
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