| 热分解法制备的Co/SiO2催化剂上费-托合成反应性能 |
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| 引用本文： | 李泽壮,陈建刚,王月伦,孙予罕.热分解法制备的Co/SiO2催化剂上费-托合成反应性能[J].燃料化学学报,2011,39(1):54-58. |
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| 作者姓名： | 李泽壮 陈建刚 王月伦 孙予罕 |
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| 作者单位： | 1.State Key Laboratory of Coal Conversion, ;
Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China；;2.Graduate University of Chinese Academy of Sciences, Beijing 100049, China |
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| 基金项目： | 国家自然科学基金(20303026); 国家重点基础研究发展规划(973计划,2005CB221402) |
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| 摘 要： | 以无定形二氧化硅为载体，分别采用浸渍法和热分解法制备了钴基催化剂Co/A200-I和Co/A200-D，采用TG、XRD、TEM和TPR等手段对其进行了表征，并考察了这些催化剂在费-托合成反应中的性能。结果表明，浸渍法制备的Co/A200-I催化剂中钴颗粒没有规则的形状，但却具有较高的费-托合成反应活性；热分解法制备的Co/A200-D催化剂中钴颗粒呈一种球形二次结构，直径比较均匀，对于费-托合成反应具有较高的轻质烃选择性。此外，载体比表面积对催化剂结构也有较大的影响；相对于Co/A200-D催化剂，Co/A380-D催化剂的载体比表面积较大，这使得金属-载体间的相互作用较强而较难还原，但还原后Co/A380-D催化剂拥有较高的钴分散度和较好的反应活性
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| 关 键 词： | style="font-size: 9pt line-height: 热分解法" target="_blank">150%">热分解法 浸渍法 钴基催化剂 费-托合成 分散度 |
| 收稿时间： | 2010-03-21 |
| 修稿时间： | 2010-07-18 |
Catalytic performances of Co/SiO2 prepared through thermal decomposition for Fischer-Tropsch synthesis |
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| LI Ze-zhuang,CHEN Jian-gang,WANG Yue-lun,SUN Yu-han.Catalytic performances of Co/SiO2 prepared through thermal decomposition for Fischer-Tropsch synthesis[J].Journal of Fuel Chemistry and Technology,2011,39(1):54-58. |
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| Authors: | LI Ze-zhuang CHEN Jian-gang WANG Yue-lun SUN Yu-han |
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| Institution: | LI Ze-zhuang1,2,CHEN Jian-gang1,WANG Yue-lun1,SUN Yu-han1(1.State Key Laboratory of Coal Conversion,Institute of Coal Chemistry,Chinese Academy of Sciences,Taiyuan 030001,China,2 Graduate University of Chinese Academy of Sciences,Beijing 100049,China) |
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| Abstract: | Cobalt based catalysts supported on amorphous SiO2 were prepared through thermal decomposition as well as incipient wetness impregnation.They were characterized by means of TG,XRD,TEM and TPR and used in Fischer-Tropsch(F-T) synthesis.The results indicated that Co/A200-I catalyst prepared by impregnation exhibits high F-T synthesis activity,though cobalt particles in it are in irregular shape.In comparison,the cobalt particles in Co/A200-D catalyst prepared through decomposition are in secondary spherical s... |
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| Keywords: | thermal decomposition incipient wetness impregnation cobalt based catalysts Fischer-Tropsch synthesis dispersion |
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