Hi all
regarding the title, it is a naphtha stabilizer column which separate LPG from hydrotreated naphtha with a bottom temp. of 176 deg C at the reboiler draw-out and 190 deg C at the reboiler return.
the feed flow into this column is ranging from 24~35 ton/h
* my question is why the reboiler...
hi all
we face a very strange crack of a reciprocating H2 compressor K-202 @ CCRU which deliver produced H2 to all users.
vendor's investigations reveal nothing.
any idea or similar case?
here is the photos
https://picasaweb.google.com/mahmmoud30/ReportAboutK202?authkey=Gv1sRgCIWfla_lxazGlwE#
hi all
i want to know why
1. Atm. distillation columns have constant diameter from top to bottom while lighter cuts (e.g diesel ,naptha..etc have variable diameter from bottom to top?
2. why some absorbers are wide at top and narrow in the bottom?
hi all
I just want to know why the reading of a vibration sensor is in -ve volts, and could it read in +ve and what is the reference of -ve or +ve?
regards
hi all
i want to design distillation column to separate c3 from c4 but i didn't find VLE data so as to apply mcab-thiel procedure.also if there are special design equations regarding the liquified gases please hepl me.
thanks alot
Hi all
I am a little bit confused about these two terms:
1. codes (e.g vessels design codes)
2. standards (e.g vessels design standards)
so plz can somebody explain more!!
thanks alot
hi all
just before 2 days our booster compressor (2stages reciprocating compressor from neuman&Esser)was shutdown du to low low lube oil pressure signal,when we check, we found that auxillary oil pump has autostarted when lube oil pressure was low only but it run for 1 second only then stopped...
hi all
tha attached pic is our stripper at Naphtha hydrotreating unit (NHT),after u see the pic plz answer me for?
1- why try no. 5th from top is selected as a temp. control while the common practice is the top tray temp will be controlled by the reflux flow.
2- why the TIC-1036 is cascaded to...
