+1 862 207 3288 Laboratory tests of a membrane for H2/CH4 separation gave a permeate composition of 80% H, and a 20% cut when the feed was 50% H, and the feed and permeate absolute pressures were 700 and 105 kPa, respectively.
(a) Calculate the composition of the retentate.
(b) What is the membrane separation factor?
