Calculate composition of gas mixture

[partiapressure]

Hi everyone, hope I am posting this in the right place.

I have a project where I am working with gases, each can be assumed individually to be 100 % pure. These are separately injected into a closed vessel, as in injecting 30 bar of Gas A and then 30 bar of Gas B where the closed vessel thus has a total pressure of 60 bar.

I would like to know the composition of my gas mixture as accurately as possible. Gas sampling and analysis is however not an option. I am currently using Daltons Law with compressibility factor to calculate moles of each gas. :

n(A) = P(A)V/Z(A)RT and n(B) = P(B)V/Z(B)RT
n(TOT) = n(A) + n(B), --> %A = n(A)/n(TOT) * 100 %, and %B = 100 - %A.

Would an EOS solve this better, and are there any software which could calculate this (or a MATLAB script)?

[dhproeng]

Hi everyone, hope I am posting this in the right place.

I have a project where I am working with gases, each can be assumed individually to be 100 % pure. These are separately injected into a closed vessel, as in injecting 30 bar of Gas A and then 30 bar of Gas B where the closed vessel thus has a total pressure of 60 bar.

I would like to know the composition of my gas mixture as accurately as possible. Gas sampling and analysis is however not an option. I am currently using Daltons Law with compressibility factor to calculate moles of each gas. :

n(A) = P(A)V/Z(A)RT and n(B) = P(B)V/Z(B)RT
n(TOT) = n(A) + n(B), --> %A = n(A)/n(TOT) * 100 %, and %B = 100 - %A.

Would an EOS solve this better, and are there any software which could calculate this (or a MATLAB script)?

Yes you are right , EOS can solve this better as it simple calculation.

[kganesh79]

hi
anybody have good notes about platformer process in refinery