P84 Co-Polyimide-based Tubular Carbon Membrane: Effect of Pyrolysis Temperature

In this study, the effect of carbonization temperature on the performance of carbon membrane was being investigated. P84 co-polyimide-based tubular carbon membrane were fabricated through the dip-coating technique. The prepared membranes were characterized by using the thermogravimetric analysis and scanning electron microscopy. CO_2, N_2, and CH_4 pure gas were utilized in determination of the carbon membrane’s permeation attributes. In order to enhance the membrane’s performance, carbonization process was performed in Ar environment; with the flow rate of 200 ml/min. The carbonization process was done at various temperature, namely 600 ◦C, 700 ◦C, 800 ◦C and 900 ◦C in a constant heating rate of 3 ◦C/min. The increased in the temperature of carbonization leads to the production of small pores size carbon membrane. Carbon membrane prepared at 800 ◦C showed the highest CO_2/CH_4 and CO_2/N_2 selectivity of 63.2±5.2 and 61.3±1.7, respectively.