| Al2O3修饰Ni／TiO2催化剂上甲烷干重整反应 |
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| 引用本文： | 黄健,常瑜,张彩云,刘赵荣,王玉春,魏壮伟.Al2O3修饰Ni／TiO2催化剂上甲烷干重整反应[J].中山大学学报(自然科学版),2007,46(B06):241-243. |
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| 作者姓名： | 黄健 常瑜 张彩云 刘赵荣 王玉春 魏壮伟 |
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| 作者单位： | [1]运城学院,山西运城044006 [2]太原理工大学,山西太原030024 [3]山西师范大学,山西临汾041004 |
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| 基金项目： | 山西省教育厅科技资助项目（2002063） |
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| 摘 要： | 通过Al2O3修饰的Ni-TiO2-Al2O3干凝胶催化剂，该催化剂在973K条件下焙烧10h后比表面积为363m^2／g。孔分布介于2．5～2．7nm之间。采用BET和X-射线衍射考察了Al2O3组份对Ni／TiO2催化剂的影响。结果表明，Al2O3的加入使催化剂颗粒度变小，镍的分散度提高，抑制了Ni／TiO2催化剂的积碳，从而明显的提高了Ni-TiO2-Al2O3催化剂上甲烷和二氧化碳重整反应的活性和稳定性。
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| 关 键 词： | 甲烷重整 Ni基催化剂 Al2O3 修饰 |
| 文章编号： | 0529-6579（2007）S1-0241-03 |
| 修稿时间： | 2007-01-10 |
Al2 O3 Modifying Ni/TiO2 Catalysts over CH4 Dry Reforming |
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| HUANG Jian, CHANG Yu, ZHANG Cai-yun , LIU Rong-zhao , WANG Yu-chun, WEI Wei-zhuang.Al2 O3 Modifying Ni/TiO2 Catalysts over CH4 Dry Reforming[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2007,46(B06):241-243. |
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| Authors: | HUANG Jian CHANG Yu ZHANG Cai-yun LIU Rong-zhao WANG Yu-chun WEI Wei-zhuang |
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| Institution: | Yuncheng University, Yuncheng 044000, China ; Taiyuan University of Technoligy, Taiyuan 030024, China ; Shanxi Normal University,Linfen 041004, China |
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| Abstract: | Addition of aluminum to Ni/TiO2 improves the stability of the catalyst in CH4 dry reforming . The resulting Ni/TiO2 - Al2O3 xerogel, after calcinations at 973K for 10 h, had a BET surface area in excess of 363m^2/g, contained mesoprores in the range 2. 5 -2. 7nm. Nitrogen adsorption and X - ray diffraction were used to characterize the function of addition aluminum to Ni/YiO2 catalyst. The role of aluminum addition promotes the formation of large metallic Ni ensembles increase the dispersion of Ni, suppression of Ni/TiO2 - Al2 O3 catalyst deactivation and carbon deposition. |
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| Keywords: | CH4 dry reforming Nickel catalysis Al2O3 modifying |
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