Nitric oxide and carbon monoxide permeation through glassy polymeric membranes for carbon dioxide separation

► The permeability of NO through polysulfone, Matrimid and 6FDA-TMPDA was measured ► The effect of CO on the permeability of CO2 and N2 in these membranes was determined ► Competitive sorption of CO reduces permeability even when present at only 1000 ppm