A hydrogen-rich gas stream contains 1.0 mole % carbon monoxide.It is desired to use a microporous ceramic membrane for separatingcarbon monoxide (CO) from hydrogen gas at a pressure of 1 atm and atemperature of 400C. The average pore diameter of the membrane is15 nm and the void fraction is 0.30.
a) Estimate the molecular diffusivity of CO in a mixture withH2
b) Determine the Knudsen diffusion coefficient and the effectivediffusion coefficient for CO in the membrane
