[shashikant]

Hi,
I was given a problem involving adsorption of oxygen on carbon molecular sieves,to generate 99.5% pure nitrogen(flow rate=1000m3/hr) at operating temp of 40 deg c and 8.5 bar.I had to calculate air flow rate requirred?What other information i require and how to solve this problem??plz help thank u

[Enthalpy]

Does the sieve adsorb argon too?

If not, the 0.93% argon present in air will make 1.2% of the remaining "nitrogen", hence impossible to obtain 99.5% pure by this means.

For the rest, it looks like a simple calculation of compositions and quantities, where pressure and temperature have no role.