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Amines Solution's Gas Loading..


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#1 letuandk

letuandk

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Posted 10 January 2018 - 11:19 AM

Hello !

 can any one explain to me :

 

1- What's the meaning of a " rich loading of 0.35 mole acid gas/ mole MEA ?

 

2-How to convert a ppmv to ppm ?  



#2 Pilesar

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Posted 10 January 2018 - 02:17 PM

Explanation 1 (rich loading)

This describes the relation between acid gas and amine. The lean solution of aqueous amine is continually circulated to the top of the absorber where it grabs acid gas molecules and leaves the absorber as a rich solution. There is a practical limit to the amount of acid gas that can be absorbed by the amine solution as not every molecule of amine will grab a molecule of acid gas during its trip through the absorber. So if the amount of acid gas increases, the amine circulation rate (usually solution flow rate, keeping the amine concentration constant) also needs to increase.

Explanation 2 (ppmv)

ppmv is parts per million by volume. For most gases, this is commonly considered the equivalent of parts per million on a molar basis. The term 'ppm' should be qualified in order to know whether it is molar, mass (weight), or volume. Volume is often the actual measurement basis because it is reported by gas chromatographs.


Edited by Pilesar, 10 January 2018 - 02:21 PM.





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