From the results of the experiments concluded that the polymer Elvaloy4170 were Functionalization with MWNTs to used in the separation of gases. Considered a complete success.And should use membrane containing 4wt.% of f-MWNTs / Elvaloy4170 and pressure 2 bar due to the selection of gas (Ideal selectivity) through the very best. 7.38 0.38 vector for use in gas separation to be most effective.