| SiO_2修饰TiO_2负载钴基费-托合成催化剂及性能研究 |
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| 引用本文： | 李金林,贺 俞,刘成超,张煜华,张亚杰.SiO_2修饰TiO_2负载钴基费-托合成催化剂及性能研究[J].中南民族大学学报(自然科学版),2015(1):10-13,22. |
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| 作者姓名： | 李金林 贺 俞 刘成超 张煜华 张亚杰 |
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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-教育部共建重点实验室，武汉430074 |
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| 基金项目： | 国家自然科学基金面上资助项目(21473259)，湖北省重大科技创新计划资助项目(2013AGB002)，国家自然科学基金-石油化工联合基金重点支持项目(U1463210) |
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| 摘 要： | 采用Stber法和浸渍法制备了SiO2修饰的TiO2载体,并用浸渍法制备了钴基费-托合成催化剂,考察了其费-托合成催化性能.分别采用透射电子显微镜(TEM)、X-射线衍射(XRD)、低温氮气物理吸附-脱附、氢气程序升温还原(H2-TPR)等技术对载体和催化剂进行了表征,在固定床反应器上对催化剂的催化性能进行了评价.结果表明:SiO2的引入能减弱钴物种与TiO2之间的相互作用力,提高钴物种的还原性,使催化剂的催化性能显著提高.
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| 关 键 词： | 费-托合成 钴基催化剂 TiO2 SiO2 Stber法 浸渍法 |
Research on the Performances and Catalysts of SiO2 Modified TiO2 Supported Cobalt in Fischer-Tropsch Synthesis |
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| Li Jinlin;He Yu;Liu Chengchao;Zhang Yuhua;Zhang Yajie.Research on the Performances and Catalysts of SiO2 Modified TiO2 Supported Cobalt in Fischer-Tropsch Synthesis[J].Journal of South-Central Univ for,2015(1):10-13,22. |
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| Authors: | Li Jinlin;He Yu;Liu Chengchao;Zhang Yuhua;Zhang Yajie |
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| Institution: | Li Jinlin;He Yu;Liu Chengchao;Zhang Yuhua;Zhang Yajie;Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education,Hubei Province,South-Central University for Nationalities; |
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| Abstract: | SiO2 modified TiO2 supports were synthesized by Stober and impregnation method. The cobalt catalysts supported on the SiO2 modified TiO2 support cobalt catalysts were prepared by incipient wetness impregnation and the performances in Fischer-Tropsch(FT) synthesis were investigated. The supports and catalysts were characterized by TEM, XRD, H2-TPR and nitrogen adsorption-desorption. The FT catalysis catalytic performances of catalysts were tested on in a fix-bed reactor. The results indicated that SiO2 could decrease the interaction of support and cobalt oxide and improve the reducibility of cobalt oxide, thus significantly improve the FT catalysis catalytic performances of catalysts. |
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