Role of Cu-Mfi zeolite catalyst on direct conversion of methane ethane to gasoline
HZS'M-5 (Si/Al = 30), silicalite and Cu-MFI with different copper concentrations were synthesized by direct synthesis method. The catalyst samples were characterized using X-Ray Diffraction (XRD), Fourier Transform Infrared (FTIR) and Temperature Programmed Desorption of Ammonia (TPD-NH3) te...
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| Main Authors: | , , |
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| Format: | Article |
| Published: |
2005
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| Online Access: | http://journalarticle.ukm.my/1436/ http://www.ukm.my/jkukm/index.php/jkukm |
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| Institution: | Universiti Kebangsaan Malaysia |
| Summary: | HZS'M-5 (Si/Al = 30), silicalite and Cu-MFI with different copper concentrations
were synthesized by direct synthesis method. The catalyst samples were characterized
using X-Ray Diffraction (XRD), Fourier Transform Infrared (FTIR) and Temperature
Programmed Desorption of Ammonia (TPD-NH3) techniques. The catalytic
performance of the samples was evaluated in a continuous micro packed-bed reactol:
The reaction was performed at reaction temperature 800°C under atmospheric
pressure. The effects of Cu content on methane conversion and products selectivity
were investigated. Characterization results revealed that the samples were MFI-zeolite
catalysts and the copper species most probably occluded in the defect sites of the
zeolite. Modification of zeolite with copper resulted in the en-hancement of methane
conversion up to 15 %. The experimental results using Cu(O.I)-MFI demonstrated a
high selectivity to gasoline, which is 29.7% |
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