Question

[Anchal Jatale]

Hi Guys

I need a big favor from you guys. I know all of you must be busy with things,but it will be really great if I can get couple of ideas on this layout in next 36 hrs or so. Its a part of an event and i have to be up with as many ideas as possible in next 36 hrs.

Thank you all .

Please take a look at the attached plant design. Please consider the following challenges, and offer your suggestions:

1. Examine the entry of the feedstock into the melter. What are some potential ways to seal the melter so that there is no significant vapor loss?
2. Examine the reaction vessel. What are the possible ways one can ensure the best even distribution of heat throughout the reactor?

Also feel free to offer any other general thoughts or questions you may have regarding the design.

Thank You very much in advance .

Anchal

[Ankit Rohatgi]

My 2 cents:

1. Air curtain? Multiple stage entry (air locks for each chunk entering)?

2. Suspend inert pellets that float around in the system (kind of like a fluidized bed reactor). This will reduce the reaction volume, but massively enhance mixing in the system.

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[Ankit Rohatgi]

Design issues: 

The single "hot air to melter" duct from the reactor doesn't seem like a very good design btw. If the melting liquid happens to restrict the flow of air back into the reactor, then it'll result in poor air circulation (and hence not enough heat to melt) and also promote vapor loss from the top. I would have two separate ducts, one with an air compressor driving the air into the melting unit and the other duct to vent air back into the reactor. That should ensure heat actually reaching the melting unit.

What is this for? If you end up landing a million $ job with this, then you owe me some treats :P

[Varun awasthi]

U can have gear pump or lobe pump kind of entry arrangement for feed stock which will help u minimizing the vapor loss.

 

For better heat distribution, u can have multiple point entry for hot air in the reactor.

 

Regards,

 

Varun

[raashid zaheer]

Hi Guys ,

I think already all Chemical engineering ideas have been discussed here , so to time to think  something more that that !

Me and Goths thought a lot about this , and finally we concluded this belongs to Kunjru's course ! are we right ? :P

Cheers,
Rashid

[Vishrut Bajpai]

which one, I did two !!

[chinm...@gmail.com]

Buzz me when you reach the part where you need bank lines and Basel II rating for the plant.

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---

From: Vishrut Bajpai <vishru...@gmail.com>

Sender: y3...@googlegroups.com

Date: Tue, 21 Jun 2011 13:38:12 +0200

To: <y3...@googlegroups.com>

ReplyTo: y3...@googlegroups.com

Subject: Re: Question

which one, I did two !!

[Kush Shah]

Didn't you find the answer in Manish Lala's notes?

[manish lala]

lol, good one...the guy who wrote those notes is not able to follow
even a bit of what is being discussed here :-|

[Anchal Jatale]

haha kush sabse pehle unki notes ki khoj bin ki gayi thi .. but unfortunately woh miel nahi :D

[Anchal Jatale]

rashid mia mujhe to yeh thoda bahut ghatak ke course ka lag raha hai

[raashid zaheer]

Ghatak ke me to poora poora palnt set up ho jaya karta tha I guess :P. Isn't is more about just a reactor ( Kunjuru wala 3rd yr ka course) ?

[Gaurav Srivastava]

Part-1: 

For the Melter part, vapors from top of the melter can be routed back to reactor by providing a duct.....Side entry of chunks may be preferred rather than top entry....Also, it is better to have a close system of injecting the chunks into the melter as against the open system, i.e. the conveyor from bucket elevator to melter can be a tubular conveyor terminating to the blind with an opening of chunk's size at the nozzle....(sort of capillary tube through a hole in a cork fitted on a flask)

Part-2:

For the Reactor part, provision of an air distributor in reactor as indicated in attached file will give u uniform distribution of hot air in the reactor..... 

By the way, what is the service of this system???

[Anubhav Garg]

I remember....GKC ne batch maz maara tha end sem mein.

 

GKC propose some solution.

 

Jokes apart ;suggestions by Gaurav i is quite good :)...specially for part 2. 

Regards

Anubhav

[Devesh Agrawal]

@ Anchal: Your problem needs more explannation. Can you answer following question: 1. What is the role of condensor. Are you comndensing your product and collecting in other vessel? 2. Is the reaction taking place in the tube coming out of the reactor where the catalyst is loaded? 

Regards,

Devesh

Devesh Kumar Agrawal
Graduate Student
Department of Chemical and Bio-molecular Engineering
University of Houston, TX, USA

[Vishrut Bajpai]

where's Boober Sharfuddin ? we might need xeroxes !