Massic fractions

[Melimelo]

Hello,
I have a problem to calculate a massic composition:
I have 357.28 kg/h of a gas composed by:
CH4 : 88.1859% (massic)
CO2 : 10.1861%
N2 : 1.6209%
H2O : 0.0042%
H2S : 0.0030%
I will pass my gas in an adsorber (molecular sieve) to reduce elimante HO and reduce CO2 and H2S and I will have:
CO2 : 0.0025%
H2O : 0.2.10-6%
H2S : 2.10-6%
But I want to know what are my new massic fractions. how can I do?

 

[btrueblood]

Multiply all the mass fractions by the total mass flow to find the invididual species' flow rates. Subtract the removed fractions from the 357.28 kg/h flow as kg/h numbers. Recalculate the new total mass flow rate, and mass fractions.