Malaysian Journal of Analytical Sciences Vol 20 No 6 (2016): 1397 - 1404

DOI: http://dx.doi.org/10.17576/mjas-2016-2006-19

 

 

 

Ba-SAPO-34 ZEOLITE MEMBRANE FOR CO₂ AND N₂ PERMEATION

 

(Resapan Gas CO₂ dan N₂ Melalui Membran Zeolit Ba-SAPO-34)

 

Thiam Leng Chew¹*, Jun Wei Lim², Abdul Latif Ahmad³

 

¹Department of Chemical Engineering, Faculty of Engineering

²Department of Fundamental and Applied Sciences

Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar, Perak Malaysia

³School of Chemical Engineering, Engineering Campus,

Universiti Sains Malaysia, 14300 Penang, Malaysia

 

*Corresponding author: thiamleng.chew@utp.edu.my

 

 

Received: 21 October 2015; Accepted: 14 June 2016

 

 

Abstract

Membrane separation technology is gaining importance nowadays in reducing the emission of carbon dioxide (CO₂) as greenhouse gas due to the global climate change. Gas permeation studies play significant role in reflecting the potential of the membranes in separating the gas mixtures. In this study, Ba-SAPO-34 zeolite membrane was formed by membrane synthesis process using microwave (MW) heating and followed by membrane ion-exchange process with Ba²⁺ cation. The Ba-SAPO-34 zeolite membrane was investigated for its performance in the CO₂ and N₂ gases permeation studies. The effects of permeation temperature (30 – 180 ^oC) and pressure difference (100 – 500 kPa) across the membrane on the gas permeation performance of the Ba-SAPO-34 membrane were studied. CO₂ single permeance of ~9.4-19.5 x 10^-8 mol/m².s.Pa and N₂ single permeance of ~0.635-0.694 x 10^-8 mol/m².s.Pa were obtained for gases permeation through Ba-SAPO-34 membrane performed under the range of permeation temperature and pressure difference across the membrane studied. Maximum CO₂/N₂ ideal selectivity of 29.6 was obtained for gases permeation through Ba-SAPO-34 membrane at 30 ^oC and 100 kPa pressure difference.

 

Keywords:  Ba-SAPO-34, membrane, gas permeation

 

Abstrak

Teknologi membran pemisahan adalah semakin penting pada masa kini dalam mengurangkan pelepasan karbon dioksida (CO₂) sebagai gas rumah hijau disebabkan oleh perubahan iklim sejagat. Kajian resapan gas memainkan peranan yang penting dalam mencerminkan potensi membran dalam pemisahan campuran gas. Dalam kajian ini, membrane zeolit Ba-SAPO-34 telah dibentuk melalui proses sintesis membran dengan menggunakan pemanasan gelombang mikro dan diikuti oleh proses pertukaran ion membran dengan kation Ba²⁺. Membran zeolit Ba-SAPO-34 tersebut telah dikaji untuk prestasinya dalam kajian resapan gas CO₂ dan N₂. Kesan suhu resapan (30 – 180 ^oC) dan perbezaan tekanan (100 – 500 kPa) merentasi membrane terhadap prestasi resapan gas membrane Ba-SAPO-34 telah dikaji. Ketelapan tunggal CO₂ sebanyak ~9.4-19.5 x 10^-8 mol/m².s.Pa dan ketelapan tunggal N₂ sebanyak ~0.635-0.694 x 10^-8 mol/m².s.Pa telah diperolehi bagi resapan gas melalui membran Ba-SAPO-34 di bawah julat suhu resapan dan perbezaan tekanan merentasi membran yang dikaji. Kememilihan CO₂/N₂ sebanyak 29.6 (maksimum) telah diperolehi bagi resapan gas melalui membran Ba-SAPO-34 pada 30 ^oC dan perbezaaan suhu sebanyak 100 kPa.

 

Kata kunci:  Ba-SAPO-34, membran, resapan gas

 

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