Dear Sirs
The psv is instaled on the cooling water supply side
, is any thermal expansion scenario analysis required? And which catagories is prefer in this case, (1). simple hydralulic expansion with a liduid only relief. (2) thermal expansion of a liquid with vaporization at relief case, (3)...
Dear Sir/Madam
Layout A/B are two different types of unloading system.
Could you please help me out to find out what theese two systems's advantange and disadvatange?
Note. In layout B, (a),(b), ( c) are different ports of truck delivery load to storage tank,
And it seems b, c is perferable...
Dear Sir
I would like to bother you some simple questions about the drum filling.
Here is my description about Drum filling system : Most product (Ethoanolamines product) will be stored in drum. For drum filling, Ca. 205L capactiy drum will be used, and Product filling will be execute at...
Dear Sirs
I am sorry to bother your this simple and silly question.
I have a Back pressure regulator and bypass with temperature
control valve, but I don't sure that why this PCV in this bypass
location and how to decide this PCV upstream op?
thank you very much.
Dear Sir
I am sorry to bother your this trivial.
I would like how to set the upstream control valve OP
(Please see the attached excel file)
The control valve TV-B upstream is set 7 barg (refer from CV
datasheet), but from its upsream product cooler datahseet, I only
got 5 barg. It seems...
Amine from ammonia stripper bottom feed the Drying column under flow control
with reset from the ammonia stripper bottom level. The column receives also the amine rich condensate from the Ejector hot well under flow control and reset by the level. The amine rich condensate is pumped to the...
Dear Sir
I have two control scheme need your help.
Fig.2 (condensate flow control), there is a temperature controller(TIC) directrly regulates Valve B, and an increase in steam could open the valve wide even if only a little condnsate were held back in the exchanger.
My following question is...
Dear Sir
There is EO(ethylene oxide) feeding from other plant
to EO surge drum (simple drawing attached in the file).
I was wonder why there is a small brach line on
the p&id, and it was written in the note that
EO should be to provide "minimum dead leg" and any branch line should provide a...
Dear Sir
I have a ball valve with flange rating's 300 LB,
and would like to take the valve off in replace with
a spool to washing the pipe.
It's a stupid question that I should take 150 LB
spool or 300 Lb spool by the way the pipe class is
150 LB.
Thank you so much for your kinkd help.
Dear Sir
Sorry to bother a trivial question
I have a ammonia stripper reboiler and from thermal rating
the shell side inlet is medium steam (Q=46430 kg/hr
OT=207C) and outlet is all water (Q=46430 kg/hr
OT=207C). After MS pass the steam trap, the OT=197C.
Process staff put 2 phase mark on the...
Dear Sir
I would like to bother you a Reboiler Internal Reflux question
There is DEA Columns and packed with two beds of high efficiency wire gauze packing specified for low delta P.
And, the Column is provided with a horizontal top mounted condenser and bottom with a film type reboiler. The...
