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Số Renewable Energy 2016 (2016) Trang: 52-56
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Received date: 25/01/2016

Accepted date: 08/07/2016


This research focuses on development of a purification method for biogas - a potential sustainable fuel using Zn- exchanged zeolites. Different with traditional hydrothermal synthesis, the zeolite in this study has been synthesized via a microwave-assisted method in order to shorten the crystallization time. Various techniques were utilized for characterization of the adsorbents. The crystalline structure of the materials was analyzed by XRD (X-ray Diffraction). Scanning Electron Microscopy (SEM) was applied for morphology analysis. The H2S adsorption activity of the material was determined by a fixed-bed absorption column and the expressed by the H2S absorption capacity below a specified breakthrough point (50 ppm). H2S adsorption capacity of about 13 mgS/g was achieved. It was observed that although high concentration of CO2 was presented in the feed stream, the Zn-exchanged zeolite can selectively remove H2S in the gas mixture.


Biogas, H2S, Zeolite X, microwave-assisted method, selective adsorption

Cited as: Binh, H.T.T. and Long, N.Q., 2016. Selective adsorption of H2S in biogas using zeolite prepared by microwave-assisted method. Can Tho University Journal of Science. Special issue: Renewable Energy: 52-56.


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