摘要
SAPO-34 catalysts were synthesized by hydrothermal method, and characterized by X-ray diffraction (XRD), NH3 temperature-programmed desorption (NH3-TPD) and thermogravimetric-differential thermal analysis (TG-DTA). The synthesized catalysts were tested for dehydration of bio-ethanol to ethylene in comparison with commercial ZSM-5 and γ-Al2O 3. The home-made SAPO-34 catalysts exhibited similar bio-ethanol conversion and ethylene selectivity at 60°C and 110°C lower compared to commercial ZSM-5 and γ-Al2O3 catalysts, respectively, indicating higher lowerature activity. It was found that the crystallinity and surface acidity of synthesized SAPO-34 decreased after 4 h on stream, which is attributed to the carbonaceous deposits on catalyst confirmed by TG-DTA.
源语言 | 英语 |
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页(从-至) | 2414-2421 |
页数 | 8 |
期刊 | Petroleum Science and Technology |
卷 | 31 |
期 | 22 |
DOI | |
出版状态 | 已出版 - 17 11月 2013 |