3 replies to this topic

[addiesalsabil]

Hi all,

 

I'd like to evaporate a mixture of propylene oxide, water, propylene glycol and dipropylene glycol in multiple effect evaporator, in this case, triple effect evaporator. I'd like to evaporate all of the propylene oxide and a big fraction of water, leaving small fraction of water, propylene glycol and dipropylene glycol in the liquid product.

 

The question are, how do I calculate the needed temperature and pressure to obtain the vaporized and liquid product with the specification that I'd like to achieve? And also, how do I calculate the boiling point rise (BPR) for each effect as most of the calculation examples are in binary component?

 

I hope this makes sense.

 

Kind regards,

Addie

[breizh]

Hi,

You should get data from literature or lab tests.

I've attached documents to support your calculation.

Good luck

Breizh  

Attached Files

•  TripleEffect .pdf   33.94KB   18 downloads
•  simple et multiple effets.pdf   2.07MB   15 downloads
•  non iterative design of MEE using excels.pdf   1.49MB   16 downloads
•  MEE.pdf   7.03MB   14 downloads

[addiesalsabil]

Thanks for the recommendations, Breizh! 

[shvet1]

Do you want to provide this manually or using a software?