Complete Design Process of a Fixed Bed Catalytic Reactor
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- เผยแพร่เมื่อ 15 ก.ย. 2024
- 🚀 Learn how to design a real fixed-bed catalytic reactor for the production of MTBE. Discover the steps required to solve such complex problems and get a step-by-step guide on the key equations and assumptions for designing a fixed bed reactor. 💯
🎉 We apply the use of mass & energy balances, thermodynamics, reactor design, and mechanical design techniques to create a CAD design of our proposed reactor. We will determine factors such as the design equations, column height, diameter and adiabatic temperature rise etc.
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I definitely agree with Aleena this has been so useful for my project, I wouldn't have passed without this!
Glad it was helpful!
Another great video and well worth spending time to go through this as its super easy to follow!!!!
Thank you for your kind words!
A really good video tutorial, looking forward to doing the reactor course!
Thank you for your kind words, and looking forward to working with you on this incredible course!
This is a life saving video, Thank you so much.
Thank you for your kind words, I am glad this helped!
I totally agree!!
I couldnt agree more
I agree!
Awesome tutorial, great schematic too!
Thank you for your kind words! Glad you like it!
A really detailed video, this has been so helpful to me Dr
Thank you for your kind words, glad it was helpful!
@16:26, I'd suggest to pay attention to your writing, dt should be dt(sub). Otherwise it is confusing.
Thank you for watching and for your feedback, much appreciated!
great content as usual sir
Much appreciated
Excellent video very informative and helpful!
Thank you for your kind words!
Sorry for asking so many questions but I hope that I could get answers hihi
First, You say that volumetric flow per tube= Area per tube * the length ( but when I take the calculation, I can not get the same result with you)
Second, in the calculation of latent heat, can you help me show the formula to calculate the flowrate (F)
Thank you so much for your very helpful video
It might be easier to discuss the details via email, please get in touch via info@chemengstudent.com and we can take a further look into the design.
Such a well explained video sir
Thank you for your kind words!
Top quality stuff my friend
Thank you kindly
Great tutorial, very informative
Glad it was helpful!
Is the density in the mass balance equation the density of the catalyst bed?
Yes the Rho(b) is the density of the bed.
So do I use the rate constant of reaction or the equilibrium constant of reaction when subbing in K for -r'A? Im doing CO + 2H2 → CH3OH. Thank you in advance!
I am using a basis of 95% conversion at first
for -r'A this will be the reaction rate constant. If you know it explicitly you simply just substitute it in, if not, you can use the Arrhenius Equation. With reversible reactions you will need to consider the rate of the forward and reverse reactions for the overall rate constant. With you basis if you haven't already I would also reccommed to use 100 kmol for feed that way it simplifies the conversions from %. I hope this helps!
how would this change for a reactor dealing with multiple reactions?
The mechanical design will remain almost the same. The main difference will fall within the kinetics and thermodynamics portion of the design. For example, the reaction Cp will need to account for all the compounds relative to their mole fractions. Similarly, the reaction rate will be dependent upon the limiting reaction step, therefor individual kinetics and thermodynamic details for each reaction will be required. It is also worth noting that if any interactions take place between the multiple reactions, this needs to either be stated as negligible in the assumptions or accounted for in the design. I hope this helps.
@@TheChemEngStudent okay thank you very much
What is that coefficient in the spreedsheet
Which one are you referring to?
so helpful video but can you show me the design reaction? thank you so much
😍😍
Thank you for your feedback, I will endeavor to get a tutorial uploaded on this subject.
Super Super video!!!!
Thank you very much!
Great video But i had a question that for fixed bed reactor we take weight of catalyst as a function of conversion right?
Yes, there are several ways of determining the catalyst weight. It can be dependent upon conversion but not an explicit function of it. Alternatively, you can create a modified material balance whereby the integral is dX/dW where X is conversion and W is the catalyst weight. I hope this was helpful.
@@TheChemEngStudent Got it
Thank you very much
@@TheChemEngStudent Although do you have video how you implemented the equation to produce chart
if so plz send the link
I will be making a video on this topic soon, so I will include a link for you when it is up.
Concentration changes along the direction of flow.Why direction of flow and 'dz' are perpendicular to each other???
Both variables are modeled parallel as the direction of flow has to be on the same axis. The schematic I drew was just for illustration purposes which was horizontal, however the actual system in the problem statement was vertical. Thank you for watching, I hope this helps!
When you calculate the latent heat, how can you find out the F?? please help me
This is the molar flow rate of the feed stream which can be seen in the table four slides prior to that. I hope this helps!
Where do you get these data for calculating the fixed bed reactor?
The data is based on a university project, however there are several variations to the design process as it just depends upon the information that is available to you.
Sorry to ask to many ques but whats the catalyst used
The most common catalyst used for the production of MTBE is Amberlyst 15
How did you get the velocity value 16.96? cheers
This was found by dividing the volumetric flow rate of the feed stream (tube only) by the cross-sectional area of the tube.
Void fraction 0.42 & porosity is 0.35.
What is the difference between this two??
In this example the void fraction is the free space within the bed, (sometimes referred to as the bed porosity), however in this example the porosity is the solid particle porosity, as indicated by the subscript "s", I hope this helps, and thank you for watching!
Ok. Overall a very informative video!
@@bapusothombare7368 Thank you sir, very much appreciated!
is this reactor suitable for the production of acetic acid via methanol carbonylation using the Ni/Ac as the catalyst, anyway its a good video
Yes a FBCR would be a suitable option for this particular system, so long as the acetic acid and methanol were in the same state as the design becomes incredibly complex when you have all three states present as the catalyst is usually in a solid form. Thank you for watching!
From where did you taken this case study ?
The case study was developed by myself, as a university project.
@@TheChemEngStudent ohk one more question. how did you calculated mass balance table beacuse link u provided in description is not working?