| 舒玉瑛,舒兴田.甲烷在钼／含磷五元环沸石催化剂上的无氧芳构化[J].分子催化,1997,(3):173-179 |
| 甲烷在钼／含磷五元环沸石催化剂上的无氧芳构化 |
| The Dehydrogenation and Aromatization of Methane over Mo/ Phosphoric Rare Earth Containing Penta Sil Type High Silica Zeolite Catalyst in the Absence of Oxygen |
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| DOI： |
| 中文关键词: 沸石催化剂 甲烷 无氧芳构化 芳构化 催化剂 |
| 英文关键词:Phosphoric rare earth containing penta sil type high silica zeolite, Dehydrogenation and aromatization of methane, Small MoO 3 crystallite, |
| 基金项目:国家自然科学基金 |
| 舒玉瑛 舒兴田 |
| 中国科学院大连化学物理研究所催化基础国家重点实验室，中国石化总公司石油化工科学研究院 |
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| 中文摘要: |
| 报道甲烷在无氧条件下，在一种不同于Ｍｏ／ＨＺＳＭ－５催化剂的钼／含磷五元环沸石催化剂上催化转化制高级烃类（苯等）的新反应，实验表明，在钼／含磷五元环沸石催化刘，当Ｍｏ浸渍的重分数为２０％时，甲烷具有最佳反应活性，其转化率为９．２３％，工选择怀为９２．７４５，用ＢＥＴ、ＸＲＤ、ＮＨ３－ＴＰＤ和ＴＰＲｃＭｏ |
| 英文摘要: |
| Methane can be activated and converted into aromatics over Mo/phosphoric rare earth containing penta sil type high silica zeolite catalysts at 973 K in the absence of oxygen. The notation for the catalyst is xMo/HZRP 1 where x denotes the percentage of Mo loading and HZRP 1 denotes the phosphoric rare earth containing penta sil type high silica zeolite. Unlike Mo/HZSM 5 catalysts, Mo/HZRP 1 catalysts with high Mo loading give much better catalytic performance. The maximum conversion of methane is 9.23% with a selectivity of 92.74% on 20 Mo/HZRP 1 catalyst. BET experiment shows that Mo/HZRP 1 catalyst has bigger BET surface area than the Mo/HZSM 5 catalyst for the same Mo loading. XRD patterns show an obvious diffraction peak of small MoO 3 crystallite. NH 3 TPD demonstrates that the amount of strong acid sites decreases as Mo loading increases. The small MoO 3 crystallite, proper acid strength and pore structure of the zeolite are favorable for the methane conversion activity. |
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