| Pt/Al2O3和Pt/CeO2/Al2O3催化甲烷部分氧化制合成气反应 |
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| 引用本文： | 严前古,高利珍,远松月,于作龙.Pt/Al2O3和Pt/CeO2/Al2O3催化甲烷部分氧化制合成气反应[J].高等学校化学学报,1998,19(8):1300-1303. |
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| 作者姓名： | 严前古 高利珍 远松月 于作龙 |
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| 作者单位： | 1. 中国科学院成都有机化学研究所,成都,610041
2. 中国科学院长春应用化学研究所,长春,130022 |
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| 基金项目： | 国家自然科学基金，29573128， |
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| 摘 要： | 研究了Ｐｔ／Ａｌ２Ｏ３和Ｐｔ／ＣｅＯ２／Ａｌ２Ｏ３对甲烷部分氧化制合成气反应的催化活性，发现Ｐｔ／ＣｅＯ２／Ａｌ２Ｏ３显示了更高的烷转化率和合成气选择性，用Ｈ２－ＴＰＲ、Ｈ２－、ＳＥＭ－ＥＤＸ和ＸＲＤ等技术对催化剂进行了表征，ＣｅＯ２和Ｐｔ相互作用促进Ｐｔ在催化剂表面的分散，抑制Ｐｔ在催化剂表面的迁移；降低了催化剂的燃烧活性，提高了催化剂的部分氧化活性和选择性，可避免因催化剂床层局部温度过高而导致
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| 关 键 词： | 甲烷 部分氧化 合成气 催化剂 铂 铈 |
Partial Oxidation of Methane to Syngas over Pt/Al2O3 and Pt/CeO2/Al2O3 |
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| YAN Qian-Gu,GAO Li-Zhen,YUAN Song-Yue,YU Zuo-Long.Partial Oxidation of Methane to Syngas over Pt/Al2O3 and Pt/CeO2/Al2O3[J].Chemical Research In Chinese Universities,1998,19(8):1300-1303. |
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| Authors: | YAN Qian-Gu GAO Li-Zhen YUAN Song-Yue YU Zuo-Long |
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| Abstract: | The catalytic oxidation of methane to syngas has been carried out over Pt/Al 2O 3 and Pt/CeO 2/Al 2O 3. It was found that the catalysts with ceria exhibit a higher activity and selectivity than those without ceria. The catalysts were characterized by means of TPR, TPD, SEM EDX and XRD. There is a strong interaction between ceria and platinum under the reaction condition, which increase the dispersion of platinum over catalysts, preventing the sinter of the Pt particles. As a result of the synergistic effect between Pt and ceria, the activity of Pt/Al 2O 3 for combustion reaction was suppressed, the activity and selectivity for partial oxidation were improved greatly. Another role of ceria in the catalyst is the enhancing of the WGSR, which leads to the increase of the selectivity of catalyst for hydrogen and accelerating the equilibrium of the reaction. |
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| Keywords: | Methane Catalytic partial oxidation Syngas Pt/CeO 2/Al 2O 3 |
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