Methanol conversion on metal-incorporated SAPO-34s (MeAPSO-34s) |
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Authors: | Misook Kang |
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Institution: | Department of Chemical Engineering, Dankook University, San 8, Hannam-dong, Youngsan-ku, Seoul 140-714, South Korea |
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Abstract: | The influence on metal incorporation into the framework of SAPO-34 (MeAPSO-34) on methanol conversion was investigated in this study. Used MeAPSO-34s (SAPO-34, FeAPSO-34, CoAPSO-34, and NiAPSO-34) were acquired by the rapid crystallization method. In characteristics, it was identified that these catalysts had a uniformly regular form with a sharp distribution in particle size. The performances on methanol conversion for these catalysts were different according to the properties of metals. As a result, the methanol conversion was enhanced on the metal-incorporated catalyst compared with the non-metal catalyst. In reaction at 450°C for 1 h, the order of increasing in ethylene selectivity was followed as next; Ni->Co->Fe->non-metal-incorporated SAPO-34. On the other hand, the selectivity for all the samples decreased with an increase in reaction time, however, the reduced rate was very slow on CoAPSO-34 compared with the other catalysts. In addition as a surprising result, the CoAPSO-34 catalyst exhibited a minor methanation. |
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Keywords: | Rapid crystallization method MeAPSO-34s Methanol conversion Ethylene selectivity Methanation |
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