| CoMo/ZrO2-Al2O3催化剂的制备及其加氢脱氧性能 |
| |
| 引用本文： | 包建国,杨运泉,王威燕,蒋新民,李娅. CoMo/ZrO2-Al2O3催化剂的制备及其加氢脱氧性能[J]. 燃料化学学报, 2011, 39(1): 59-63 |
| |
| 作者姓名： | 包建国 杨运泉 王威燕 蒋新民 李娅 |
| |
| 作者单位： | 1.College of Chemical Engineering, Xiangtan University, Xiangtan 411105, China；;2.Key Laboratory of Green Catalysis and Chemical Reaction Engineering, Xiangtan University, Xiangtan 411105, China |
| |
| 基金项目： | 湖南省教育厅开放基金(10K062); 化工过程模拟与优化研究中心开放课题(2008HGZX02); 湖南省研究生科研创新项目(CX2009B135) |
| |
| 摘 要： | 以ZrOCl2·6H2O和Al2(SO4)3为原料，采用超声波共沉淀法制得一系列不同ZrO2质量分数的ZrO2- Al2O3复合氧化物载体；并以该复合氧化物为载体，采用等体积浸渍法制得Co和Mo质量分数分别为6.0%和16.0%的CoMo/ZrO2-Al2O3催化剂。BET、XRD、H2-TPR和NH3-TPD等表征结果表明，ZrO2-Al2O3复合氧化物载体具有较高的比表面积与较大的孔容、孔径，随着复合载体中ZrO2质量分数的增加，复合载体比表面积逐渐减小。ZrO2-Al2O3复合载体能高度分散活性组分，钴钼负载量接近其在载体上的单层分散阈值。相比于CoMo/Al2O3，CoMo/ZrO2-Al2O3催化剂具有较高的还原性能和较多的表面酸性活性中心,由此导致其在苯酚加氢脱氧(HDO)反应中，具有较高的加氢脱氧活性和苯选择性。
|
| 关 键 词： | font-size: 9pt,line-height: 150%" >钴钼催化剂,ZrO2-Al2O3复合载体,苯酚,加氢脱氧, |
| 收稿时间： | 2010-03-19 |
| 修稿时间： | 2010-06-27 |
Preparation and hydrodeoxygenation properties of CoMo/ZrO2-Al2O3 catalysts |
| |
| BAO Jian-guo,YANG Yun-quan,WANG Wei-yan,JIANG Xin-min,LI Ya. Preparation and hydrodeoxygenation properties of CoMo/ZrO2-Al2O3 catalysts[J]. Journal of Fuel Chemistry and Technology, 2011, 39(1): 59-63 |
| |
| Authors: | BAO Jian-guo YANG Yun-quan WANG Wei-yan JIANG Xin-min LI Ya |
| |
| Affiliation: | BAO Jian-guo1,YANG Yun-quan1,2,WANG Wei-yan1,JIANG Xin-min1,LI Ya1(1.College of Chemical Engineering,Xiangtan University,Xiangtan 411105,China,2.Key Laboratory of Green Catalysis and Chemical Reaction Engineering,) |
| |
| Abstract: | A series of ZrO2-Al2O3 mixed oxides with different ZrO2 contents were prepared by using ZrOCl2·6H2O and Al2(SO4)3 as raw materials through ultrasonic coprecipitation method. CoMo/ZrO2-Al2O3 catalysts with 6.0% cobalt and 16.0% molybdenum loading were prepared by impregnation method. The BET， XRD， H2-TPR and NH3-TPD characterization results showed that the ZrO2-Al2O3 mixed oxide support had high surface area, large pore volume and pore diameter. The surface area of the ZrO2-Al2O3 mixed oxide support decreased with the increase of ZrO2 content in the mixed oxides. The active component of CoMo/ZrO2-Al2O3 catalyst was highly dispersed over the ZrO2-Al2O3 and the amount of the loaded CoMo was closed to the monolayer dispersion threshold. Compared to the CoMo supported on the single alumina or zirconia catalysts, the surface of the CoMo/ZrO2-Al2O3 catalyst had stronger reduction ability and more active acid sites, which led to its higher catalytic activity and benzene selectivity in the hydrodeoxygenation of phenol. |
| |
| Keywords: | cobalt and molybdenum catalyst ZrO2-Al2O3 mixed oxides support phenol hydrodeoxygenation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《燃料化学学报》浏览原始摘要信息 |
|
点击此处可从《燃料化学学报》下载全文 |
|
