Abstract & Overview
Tubular carbon membrane was prepared from BTDA-TDI/MDI (P-84) polyimide as a main precursor that blends with nanocrystalline cellulose (NCC) through controlled pyrolysis condition.The effects of the final pyrolysis environment on 𝑂 2 and 𝑁 2 permeation levels were studied.By manipulating pyrolysis conditions during the process of pyrolysis with rate of heating at 3°C/min, a final temperature of 800°C and a stabilization temperature of 300°C, the performance of the carbon tubular membrane can be regulated based on a review of previous studies.The control of pyrolysis environment (helium, argon, and nitrogen gases) through the quality of carbon membranes influenced the permeation of gas properties themselves.By applying Ar gasses as a pyrolysis environment throughout the process of heat treatment, a better performance in gas separation was found.Single gas permeation tests of 𝑂 2 and 𝑁 2 were performed to examine the transport mechanism in the process of carbon membrane separation.The PI/NCC carbon membrane that undergoes Ar environment showed the most impressive finding with the highest selectivity of 8.23±3.27for 𝑂 2 /𝑁 2 213.56±2.17GPU permeance of 𝑂 2 .