| 不同形貌纳米Al2O3负载的钴基催化剂费-托合成催化性能研究 |
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| 引用本文： | 李金林,方宇.不同形貌纳米Al2O3负载的钴基催化剂费-托合成催化性能研究[J].中南民族大学学报(自然科学版),2012,31(2):1-5. |
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| 作者姓名： | 李金林 方宇 |
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| 作者单位： | 中南民族大学催化材料科学湖北省暨国家民委一教育部共建重点实验室,武汉,430074 |
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| 基金项目： | 国家自然科学基金资助项目(21073238) |
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| 摘 要： | 通过水热法合成了不同形貌（纤维、棒、片）Al2O3纳米材料,用满孔浸渍法负载钴基催化剂（Co/Al2O3）,采用透射电子显微镜（TEM）、氮气物理吸附（N2-physisorption）、X-射线衍射（XRD）、氢气程序升温还原（H2-TPR）等方法对催化剂表征,并在固定床反应器上测试其费-托合成催化性能.结果表明：载体Al2O3形貌影响Co3O4晶粒大小、催化剂还原性能和催化活性,Al2O3纳米纤维负载的催化剂上Co3O4晶粒最小,催化剂表面的钴金属活性位数量最多,费-托合成催化活性最高.
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| 关 键 词： | 费-托合成 钴催化剂 纳米氧化铝 形貌 |
Catalytic Performances of Cobalt Catalysts Supported by Nano-Alumina with Different Morphology for Fischer-Tropsch Synthesis |
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| Li Jinlin,Fang Yu.Catalytic Performances of Cobalt Catalysts Supported by Nano-Alumina with Different Morphology for Fischer-Tropsch Synthesis[J].Journal of South-Central Univ for,2012,31(2):1-5. |
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| Authors: | Li Jinlin Fang Yu |
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| Institution: | (Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission and Ministry of Education, South-Central University for Nationalities,Wuhan 430074,China) |
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| Abstract: | The different morphology(fiber,rod and sheet)of nano-alumina were synthesized by incipient wetness impregnation technique and were used as support to prepare Co/Al2O3 catalysts.The catalysts were characterized by TEM、N2-physisorption、XRD、H2-TPR.Their catalytic performances for Fischer-Tropsch synthesis(FTS) were evaluated in a fixed-bed reactor.The results indicated that the morphology of nano-alumina had a significant effect on Co3O4 crystallite size,catalyst reducibility and FTS activity.The nanofiber Co/Al2O3 formated smaller Co3O4 crystallite and increased cobalt active sites,resulting in the highest activity in FTS. |
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| Keywords: | Fischer-Tropsch synthesis cobalt catalyst nano-alumina morphology |
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