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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
Recently Answered Questions
Date  Replies
15/02/2018 Q: Why is the top of a CDU normally wider than its lower body? (1)
12/02/2018 Q: In our kero minus hydrotreater unit, employing Albemarle catalyst, I witnessed an abnormal behaviour in preheat exchanger and HP separator.
A pressure gauge is installed at downstream of tube side of last preheat exchanger that essentially indicates pressure drop in tube side (Reactor downstream) of exchangers. The said gauge has hunting of approximately about 1 bar. I first wonder why is this happening as there is no chance for continuous pressure fluctuations in the circuit. I also presumed gauge to be faulty and asked maintenance section to replace it, but the problem still prevails.
Then I found the level fluctuations of the approximately same kind in HP separator. The level transmitter in our DCS didn't indicate this rise and fall, but the level glass proves this abnormality.
I am unable to understand this behaviour and seek experts advice.
(1)
30/03/2017 Q: What is Wild Naphtha and why is it so called? (6)
13/02/2018 Q: In our FCC, catalyst has been observed to get carried over to the fractionators during start up activity. This upsets the fractionators bottom pumps. What can be probable reasons for such carry over and how this can be mitigated? (4)
14/02/2018 Q: Can anyone please tell me how to identify whether the liquid is forming a channel in the reactor packed bed?
Also please confirm the effect of pressure drop across the bed if channelling occur? will it increase or decrease?
In my understanding, the pressure drop will increase. But I need documents to support my argument.
Please help!
(2)
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