Thank you for your kind words, in the case of a packed bed Distillation Column the best design method would be Equilibrium-Stage modelling, or Mass Transfer Rate-Based modelling as in the Short Cut method is based on the number of trays, whereas packed beds don't use trays. I hope this helps, thanks for watching!
@TheChemEngStudent I have a question. I need to design a distillation column as small as possible. I do not need very Hight purity of the distilate. What parameter would have the biggest impact on the size of the column (height reduction if possible)
@@jamesdavid9390 The key parameters that determine the overall "size" of the column is really the final product purity, and the feed composition. Since the more pure the product the higher/more number of stages you will require. It is also worth considering the types of plates as their efficiency will play a part in the amount you will need. Aditionally, the thermodynamics of the system is also key as you can manipulate the temeprature and pressure to facilitate a quicker separation. Those are the ones I would focus on first and optimise from there. I hope this helps!
@TheChemEngStudent A thousand thanks for your answer. This explains a lot. Also I am quite well verse with excel, if there are part of the spreadsheet you would like me to help with in order to make it easy for you please do not hesitate. I would be more than happy to help
Well explained, very useful. Thank you very much Sir. But I really thought Colburn method will also be covered in this video, I am struggling to understand it. Thank you
Thank you for your kind words. Yes you are correct, I miss-spoke during this tutorial and made a slight error in the wording of the question. Thank you for highlighting this and for watching, much appreciated!
Hi, this video has been really helpful, but how do I get my relative volatilities when my system doesn't involve hydrocarbons as I am trying to design a distillation column to separate CO2 from hydrogen/syngas?
The process for obtaining the relative volatilities is generally the same, with the exception of a few. In the case of CO2 separation from syngas, the key thing to make sure is that there is no reaction taking place as this process won't work, similarly if there is a large deviation from non-ideal systems. The easiest method of determining relative volatilities is through the Hengstebeack's method and using the De Priester chart for equilibrium constants. I hope this helps, thank you for watching!
Hi, i really wish you have outlined how the top and bottom temperatures where obtained and actually shown by example how the relative volatilities where obtained from the depreister charts . most examples do not really explain these points.
Thank you for your suggestion, we will look at creating a depreister chart specific video. We do have a relative volatility tutorial from an equation and modelling perspective. Thanks again for watching!
18:15 how is more material leaving the column when the Reflux Ratio increases??? The equation is Lo/D, so if this increases that means more material is re-entering the column.
Yes, you are correct, I misspoke in my explanation, thank you for highlighting that, it is much appreciated! The values represented within the table are obtained using the same method within the example, using the Erbar-Maddox correlation & graph.
Never fails to deliver, can we get sharing this mans videos, more people need to see them!!
Thank you for your kind words!
This has been super useful for me! Thank you Callum 👏
Thank you for your kind words, glad you found it useful!
I love the way you teach. Thank you. Never give up doing these videos.
Thank you for your kind words, it is greatly appreciated!
Thanks, its really hard to find comprehensive breakdowns like this for ChemE, and I greatly appreciate it, it is much need in our community.
Thank you for your kind words, much apprecaited! I am glad you found it useful.
Your something else Callum
Thank you for your kind words!
Really good explanation sir
Thank you for your kind words!
Your video was really good, but I have a question. Sorry if it sounds stupid, but can this method be used for a packed bed Distillation Column?
Thank you for your kind words, in the case of a packed bed Distillation Column the best design method would be Equilibrium-Stage modelling, or Mass Transfer Rate-Based modelling as in the Short Cut method is based on the number of trays, whereas packed beds don't use trays. I hope this helps, thanks for watching!
Everyone who comments are legends!
All our subscribers & viewers are most certainly legends!
this is a realy really good explaination. I do hove also a few questions, about the method, can I put them here ?
Thank you for your kind words, sure please feel free either to comment your questions or you can get in toiuch directly via email.
@TheChemEngStudent I have a question. I need to design a distillation column as small as possible. I do not need very Hight purity of the distilate. What parameter would have the biggest impact on the size of the column (height reduction if possible)
@@jamesdavid9390 The key parameters that determine the overall "size" of the column is really the final product purity, and the feed composition. Since the more pure the product the higher/more number of stages you will require. It is also worth considering the types of plates as their efficiency will play a part in the amount you will need. Aditionally, the thermodynamics of the system is also key as you can manipulate the temeprature and pressure to facilitate a quicker separation. Those are the ones I would focus on first and optimise from there. I hope this helps!
@TheChemEngStudent A thousand thanks for your answer. This explains a lot. Also I am quite well verse with excel, if there are part of the spreadsheet you would like me to help with in order to make it easy for you please do not hesitate. I would be more than happy to help
Well explained, very useful. Thank you very much Sir. But I really thought Colburn method will also be covered in this video, I am struggling to understand it. Thank you
Thank you for your kind words! We can certainly look at making a video specifically on the Colburn method! Thank you for your suggestion!
How do we do this calculation on an Excel sheet? Can you please provide a template
The Excel template is now available to download in the description. Thank you for watching!
I may be wrong, but it looks like you linked the wrong spreadsheet! The one you linked is for a binary separation. @@TheChemEngStudent
@@gonhog4445 My apologies, we don't currently have an Excel Template for Multi-Component Systems. We will look into creating one.
yes please can we have a downloadable spreadsheet
Certainly, I will let you know once its available. Thank you for watching!
thanks so so much. @@TheChemEngStudent
hi, great video. just wondering, you said the feed is saturated vapour so wouldn't q = 0? meaning the underwood equation = 1?
Thank you for your kind words. Yes you are correct, I miss-spoke during this tutorial and made a slight error in the wording of the question. Thank you for highlighting this and for watching, much appreciated!
Hi, this video has been really helpful, but how do I get my relative volatilities when my system doesn't involve hydrocarbons as I am trying to design a distillation column to separate CO2 from hydrogen/syngas?
The process for obtaining the relative volatilities is generally the same, with the exception of a few. In the case of CO2 separation from syngas, the key thing to make sure is that there is no reaction taking place as this process won't work, similarly if there is a large deviation from non-ideal systems. The easiest method of determining relative volatilities is through the Hengstebeack's method and using the De Priester chart for equilibrium constants. I hope this helps, thank you for watching!
Hi, i really wish you have outlined how the top and bottom temperatures where obtained and actually shown by example how the relative volatilities where obtained from the depreister charts . most examples do not really explain these points.
Thank you for your suggestion, we will look at creating a depreister chart specific video. We do have a relative volatility tutorial from an equation and modelling perspective. Thanks again for watching!
18:15 how is more material leaving the column when the Reflux Ratio increases??? The equation is Lo/D, so if this increases that means more material is re-entering the column.
Yes, you are correct, I misspoke in my explanation, thank you for highlighting that, it is much appreciated! The values represented within the table are obtained using the same method within the example, using the Erbar-Maddox correlation & graph.