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· Unlock · Lock 01 May
imranahmedkhan
respected seniors,i am a chemical engineer fresher looking for a job,my aim is to become an process engineer,but recently i have got an offer from a paint company in saudi arabia for the post of production engineer trainee,i have no idea about career growth in paint industry,with two years contract.,i request all of you to please help me understand whether i should accept this offer or not?can i switch to other industries like(petrochemicals,oil and gas) after 2 years??what are the career gro...
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01 May
Art Montemayor
As a Forum member you have the priviledge of posting your own topic on your own thread. Please do not attempt to highjack another member's thread with your topic. I have removed your attempt from the NPSH topic on the student Forum.

· Unlock · Lock 30 Apr
muhammadjunz
hi iam 4th year Chemica Engineering Student. its now short time to final term , iam confused for final year project. can any one suggest me what to select/chose for project. please
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05 May
deepakrraj
hi,
As in my point of view choose one simple project comprise of mass balance,energy balance,a design of equipment like heat exchanger,distillation column etc ,cost estimation like that.For example you can take manufacture of ethylene glycol......

· Unlock · Lock 14 Apr
Shivshankar
Engineering Loves Preparation !
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Chemical and Process Engineering Resources

Submitted Chris Haslego, Nov 21 2011 11:21 AM | Last updated Nov 21 2011 01:29 PM

Category:	Separation Technology
Question:	Why choose "disposable" carbon filtration over a regenerative approach?
Keywords:	disposable,carbon,filters
Answer:	The amount of carbon consumed often times does not justify regeneration. The regeneration can be worse than the carbon's consumption. After regeneration you can end up with much less effective sorptivity and worse, introduce impurities in the form of water or solvents. The carbon bed's activity decreased with every regeneration and you cannot accurately the effective life left in the bed. Therefore you cannot predict a bed "break-through", which could result in disaster and is usually totally unacceptable. Activated carbon adsorption as a Unit Operation is still a little bit more of an art rather than a science. It's effectivness depends on a variety of factors such as base material, site of origin, method of preparation, etc. Typically carbons from different suppliers behave differently in various applications. Therefore, you may also expect that regeneration would also behave differently for certain carbon sources. This is not yet a clear-cut science. You need to ask yourself questions such as:Can I tolerate a solvent contaminating my main process fluid? Can I tolerate the lack of predicting a "break-through" in the bed? (usually not) You will find that the carbon adsorbent is so efficient that its microscopic pores (the stuff that does all the work)are very difficult to reach and clean out --- especially with heavy oils or hydrocarbons. Some oils will polymerize at the inner active sites and make it impossible to remove. High temperature gases can help as well as sophisticated solvents such as THF, but these are expensive propositions.