1 reply to this topic

[Kentucky08]

Hi everyone,

 

I am currently designing a liquid-liquid separator for a mixture of FFA-glycerine with methanol. The process is as follows: the crude glycerine is sent to a process called acidification, where impurities, especially MONG, are removed by adding acid. After acidification, the mixture is sent to a decanter, where it separates into a layer of FFA-glycerine.

 

At this stage, I am designing the separator but am feeling a bit lost, particularly when it comes to assuming the properties to be used. I also have doubts about some of the values I’ve already calculated. As someone new to the industry and a recent graduate, I am reaching out for your help and expertise.

 

Attached is the work I have already started.

 

https://drive.google...iew?usp=sharing

Edited by Kentucky08, 03 April 2025 - 03:36 AM.

[breizh]

Hi,

Consider this resource from Bobby. He was a member of this community.

 http://www.bobby-str...I_Decanter.aspx

 

Do you have access to real solutions? if yes perform test to get data about the decantation time. Several parameters to consider, temperature (viscosity), ratio aqueous phase / organic phase (could be modified by recirculation of one phase), coalescers to reduce the size of the decanter. Based on 8 years' experience designing and operating Mixer settlers for rare earths purification.

Check your document ( flow rate should be expressed in Kg/h )

 

Another resource could be Perry's chemical engineering handbook.

 

 

Breizh

Attached Files

•  Liq-liq_Separations_HP_June09.pdf   1018.36KB   10 downloads
•  liquid -liquid coalesceur.pdf   940.25KB   8 downloads
•  Liquid_Liquid_Separation_Technology.pdf   3.14MB   9 downloads