IJE TRANSACTIONS B: Applications - Special Issue - Sustainable Technologies for Water and Environment; Guest Editor Prof. Dr. Ahmad Fauzi Ismail and Associate Guest Editor Dr. Lau Woei Jye, Universiti Teknologi Malaysia (UTM), Malaysia
Vol. 31, No. 8 (August 2018) 1356-1363    Article in Press

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N. Sazali, W.N.W. Salleh, A.F. Ismail, N. H. Ismail, M.N.M. Sokri and N.A.H.M. Nordin
( Received: December 08, 2017 – Accepted in Revised Form: March 21, 2018 )

Abstract    Membranes offer remarkable attributes such as possessing small equipment footprints, having high efficiency and are environmentally friendly, with carbon membranes progressively investigated for gas separation applications. In this study, carbon tubular membranes for CO2 separationare prepared via the dip-coating method with P84 co-polyimide as the carbon precursor. The prepared membranes were characterized using Thermogravimetric Analysis (TGA), pore structure analysis Brunauer-Emmett-Teller (BET), Fourier Transform Infrared Spectroscopy (FTIR) and pure gas permeation system. The permeation properties of the carbon membranes are measured and analyzed by using CO2, CH4 and N2 gases. The P84-based carbon tubular membrane stabilized at 300°C and featured excellent permeation properties with permeance range of 2.97±2.18, 3.12±4.32 and 206.09±3.24 GPU for CH4, N2 and CO2 gases, respectively. This membrane exhibited the highest CO2/CH4 and CO2/N2 selectivity of 69.48±1.83 and 65.97±2.87, respectively.


Keywords    Gas permeation, selectivity, polyimide, tubular support, carbon membrane



غشا پیشنهاد مناسبی برای فرایندهایی که دستگاه و تجهیزات کوچکی و بازدهی بالایی هستندو با محیط زیست سازگارند می باشند. با کربنی پیشرفت قابل ملاحظه ای در جداسازی گازها صورت گرفته است. در این تحقیق غشای کربنی لوله ای شکل بروش لایه گذاری با پی-84 و بکمک کو پلی امید بعنوان پیش درآمد برای جداسازی گاز کربنیک تهیه گردیدغشای تهیه شده بروش طیف سنجی و آنالیز ترموگراومتری و انالیزهای ساختاری سطح با خلل و فورج تعیین مشخصات گردید.پایداری و مختصات نفوذ پذیری عالی غشا برای غشا کربنی لوله ای و آنالیز گازهای کربنیک، متان، و نیتروژن به ترتیب در محدوده 2.972.18, 3.124.32 and 206.093.24 GPU و در دمای 300 سانتیگراد CH4, N2 و CO2, می باشند. چنین غشایی نمایش مناسبی از گزینش پذیر ی گازهای CO2/CH4 و CO2/N2به ترتیب 69.481.83 و 65.972.87 می باشند.

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