Forums
Blogs
Articles
File Library
FAQ
Search
FB
SItuation:
Phenol forms an azeotrope with aniline. Firstly, I have searched almost all articles and the internet, none have any information on the separation of this azeotrope. However, based on my understanding, i am proposing to use extractive distillation in this case. I already have a simulation program, Design II, it detects the azeotrope and does not separate it using the shortcut method.
So, I was wondering, just wad data do I really need to input and prepare beforehand so that i can separate this azeotrope effectively?
I understand the use of vapor liquid equilibrium to determine the azeotrope composition and temperature. Understand what residue curve maps are, but do not know what information i could actually extract from the RCM. In short, I believe i am stuck. From my research, I am not quite sure that there are any books with information regarding phenol/aniline azeotrope. So does anyone have any info on this azeotrope? Do update me. Thanks for ur help =)
|
|
Azeotrope Phenol/aniline
Started by Guest_katek_*, Jul 30 2006 09:44 AM
8 replies to this topic
Share this topic:
#2
Ankur Shah
-
- Members
-
- 77 posts
Gold Member
Posted 30 July 2006 - 12:26 PM
Hey!
hysys seems to show that the rel volatility between phenol and aniline is very small... (looks more difficult to separate than propane-propene). I have attached a y-x plot and i am sure there is no azeo acc to hysys.
For extractive distilaltion, look at Conceptual design of distillation systems by Doherty and Malone. this is (afaik) the only book which has any detail for such designs.
For starters you need to know what entrainer/extractiove agent you shall require for the system.
Ankur
hysys seems to show that the rel volatility between phenol and aniline is very small... (looks more difficult to separate than propane-propene). I have attached a y-x plot and i am sure there is no azeo acc to hysys.
For extractive distilaltion, look at Conceptual design of distillation systems by Doherty and Malone. this is (afaik) the only book which has any detail for such designs.
For starters you need to know what entrainer/extractiove agent you shall require for the system.
Ankur
Attached Files
-
phenol_aniline.xls 40KB
80 downloads
#3
Guest_katek_*
Guest_katek_*
-
- guestGuests
Posted 30 July 2006 - 08:38 PM
wow thanks a bunch!!
yeah.. i know that an entrainer/solvent will be required. I have looked up robbins chart from Perry and kinda determined that the solvent to be used is Solvent class 5 or 10. (5. Ketone, amide with no H on N, sulfone, phosphine oxide and 10. Ester, aldehyde, carbonate, phosphate, nitrate, nitrile, intramolecular bonding) In addition, the boiling point of the entrainer will have to be at least 30deg C higher rite?
sorry for sounding kind of noob, may i know how you actually obtained those values in ur attached file? kinda seem like a x=y plot to me..
seems like it really is a difficult problem to solve. Even my lecturer is having difficulties. haha
anyway thanx for the attachment =)
yeah.. i know that an entrainer/solvent will be required. I have looked up robbins chart from Perry and kinda determined that the solvent to be used is Solvent class 5 or 10. (5. Ketone, amide with no H on N, sulfone, phosphine oxide and 10. Ester, aldehyde, carbonate, phosphate, nitrate, nitrile, intramolecular bonding) In addition, the boiling point of the entrainer will have to be at least 30deg C higher rite?
sorry for sounding kind of noob, may i know how you actually obtained those values in ur attached file? kinda seem like a x=y plot to me..
seems like it really is a difficult problem to solve. Even my lecturer is having difficulties. haha
anyway thanx for the attachment =)
#4
Ankur Shah
-
- Members
-
- 77 posts
Gold Member
Posted 31 July 2006 - 08:21 AM
Hey!
Now this bewilders me
attached is a y-x plot generated by Aspen Plus. This shows a wonderful example of an azeotrope.
If you tell me what entrainer you would want to use, i may be able to give you a ternary plot (depending on how aspen makes it) which will help you solve the problem.
Frankly, there is NO other way to do it easily other than using Aspen. I have used Hysys and have found it to be NOT so reliable
Take care...
Ankur
Now this bewilders me
attached is a y-x plot generated by Aspen Plus. This shows a wonderful example of an azeotrope.
If you tell me what entrainer you would want to use, i may be able to give you a ternary plot (depending on how aspen makes it) which will help you solve the problem.
Frankly, there is NO other way to do it easily other than using Aspen. I have used Hysys and have found it to be NOT so reliable
Take care...
Ankur
Attached Files
-
y_x_aniline_phenol.jpg 107.36KB
78 downloads
#5
Guest_katek_*
Guest_katek_*
-
- guestGuests
Posted 01 August 2006 - 03:23 AM
Alright, regarding the entrainer, I am proposing to use benzyl-ethanoate.
Thanks for helping =) anyway, may i know how i can get Aspen?
Thanks for helping =) anyway, may i know how i can get Aspen?
#6
O.AlAqeel
-
- Members
-
- 10 posts
Junior Member
Posted 01 August 2006 - 12:29 PM
Hey..
thank you very much for this very useful information..
regards
thank you very much for this very useful information..
regards
#7
Ankur Shah
-
- Members
-
- 77 posts
Gold Member
Posted 02 August 2006 - 09:45 AM
Hey!
attached below is a ternary plot for the system you proposed. Please refer to doherty malone's conceptual design for solutions to your problem.
Also.. if u want access to aspen, speak to your lecturer. he will have a fair idea. also, try to catch up with someone in the industry.
Ankur
attached below is a ternary plot for the system you proposed. Please refer to doherty malone's conceptual design for solutions to your problem.
Also.. if u want access to aspen, speak to your lecturer. he will have a fair idea. also, try to catch up with someone in the industry.
Ankur
Attached Files
-
ternary_plot.jpg 68.42KB
60 downloads
#9
Cantor
-
- Members
-
- 1 posts
Brand New Member
Posted 10 July 2010 - 05:09 PM
Wich property method did you used ChE Jedi?
Similar Topics
Outbreathing Of Nitrobenzene, Aniline And SimilarStarted by Guest_shvet1_* , 14 Nov 2023 |
|
|
||
Phenol Removal From Solvent (Methyl Isobutyl Ketone) In Aspen HysysStarted by Guest_HzO_* , 28 May 2021 |
|
|
||
Methanol Phenol Formaldehyde SeparationStarted by Guest_Max Domingues_* , 10 Jan 2018 |
|
|
||
Dehydrator Design For Phenol Plant Decomposition EffluentStarted by Guest_wangzhe_* , 11 Sep 2017 |
|
|
||
Multi Component Mixture With AzeotropeStarted by Guest_idontknow_* , 06 Feb 2015 |
|
|
