DOI: https://doi.org/10.14710/reaktor.12.4.245%20–%20252

SYNTHESIS AND CHARACTERIZATION OF POLYIMIDE-ZEOLITE MIXED MATRIX MEMBRANE

*Budiyono Budiyono  -  Department of Chemical Engineering, Universitas Diponegoro, Semarang, Indonesia, Indonesia
Tutuk Djoko Kusworo  -  Department of Chemical Engineering, Universitas Diponegoro, Semarang, Indonesia, Indonesia
Ahmad Fauzi Ismail  -  Advanced Membrane Research Technology Center, Faculty of Chemical and Natural Resources Engineering, Universiti Teknologi Malaysia, 81310 UTM, Malaysia, Malaysia
I Nyoman Widiasa  -  Department of Chemical Engineering, Universitas Diponegoro, Semarang, Indonesia, Indonesia
Seno Johari  -  Department of Animal Agriculture, Universitas Diponegoro, Semarang, Indonesia , Indonesia
Sunarso Sunarso  -  Department of Animal Agriculture, Universitas Diponegoro, Semarang, Indonesia , Indonesia

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Abstract

Biogas has become an attractive alternative energy source due to the limitation of energy from fossil. In this study, a new type of mixed matrix membrane (MMM) consisting of polyimide-zeolite was synthesized and characterized for biogas purification. The MMM consists of medium concentration of polymer (20% wt polyimide), 80% N-Methyl-2-pyrrolidone (NMP) and 25% zeolite 4A in total solid were prepared by a dry/wet phase inversion technique.  The fabricated MMM was characterized using SEM, DSC, TGA and gas permeation. Post treatment coating procedure was also conducted. The research showed that surface coating by 3% silicone rubber toward MMM PI 20% gave the significant effect to improve membrane selectivity. The ideal selectivity for CO2/CH4 separation increased from 0.99 for before coating to 7.9 after coating for PI-Zeolite MMM, respectively. The results suggest that PI-Zeolite MMM with good post treatment procedure will increase the membrane selectivity and permeability with more saver polymer requirement as well as energy saving due to low energy for mixing.

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Keywords: biogas purification, mixed matrix membrane, polyimide, zeolite

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Section: Research Article
Language : EN
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