Effect of intermediate layer on gas separation performance of disk supported carbon membrane

• Main Authors: Ismail, N. H., Salleh, W. N. W., Sazali, N., Ismail, A. F.
• Format: Article
• Published: Taylor and Francis Inc. 2017
• Subjects: TP Chemical technology
• Online Access: http://eprints.utm.my/id/eprint/75659/; https://www.scopus.com/inward/record.uri?eid=2-s2.0-85019745969&doi=10.1080%2f01496395.2017.1321671&partnerID=40&md5=9bbb6bfa109023a2596de548df0c4bbe

Porous alumina disk ceramic was decorated with various types of intermediate layers via one-step spray coating-carbonization technique. P-84 (BTDA-TDI/MDI) polymeric solution was sprayed on the alumina disk with an incorporation of intermediate layer. The membrane was carbonized at 700°C under nitrogen (N2) atmosphere with a heating rate of 3°C/min. The resultant carbon membrane was characterized in terms of its thermal stability, structural morphology, and gas permeation properties. A high-performance carbon membrane was obtained with the intermediate layer of the alumina powder, which exhibited the best selectivity of O2/N2, CO2/N2 and CO2/CH4 of 4.39, 19.89 and 58.43, respectively.