| Pd促进ZnO/Al2O3催化乙醇水蒸气重整制氢 |
| |
| 引用本文： | 陈孟楠,章冬云,马紫峰.Pd促进ZnO/Al2O3催化乙醇水蒸气重整制氢[J].物理化学学报,2011,27(9):2185-2190. |
| |
| 作者姓名： | 陈孟楠 章冬云 马紫峰 |
| |
| 作者单位： | 1. Department of Chemical Engineering, Shanghai JiaoTong University, Shanghai 200240, P. R. China;
2. Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA;
3. Department of Material Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, P. R. China |
| |
| 基金项目： | 国家重点基础研究发展计划项目(973) |
| |
| 摘 要： | 采用浸渍法制备了Pd促进ZnO/Al2O3催化剂, 考察了该催化剂作用时, 在水醇摩尔比为3, 常压和450 °C工作条件下乙醇水蒸气重整(SRE)制氢反应性能. 研究结果表明, 在该催化剂体系作用下的SRE反应过程中, H2、CH3CHO为主要产物, 与ZnO/Al2O3催化剂不同, Pd能促使CH3CHO发生C-C键断裂反应, 显著提高C2H5OH转化率及H2选择性, 分别达65%、55%. 还利用BET比表面积、透射电子显微镜(TEM)、热重-差示扫描量热-质谱(TG-DSC-MS)等表征手段考察了催化剂失活以及表面积炭情况, 发现Pd的加入对催化剂总积炭量并无明显影响.
|
| 关 键 词： | 乙醇 制氢 钯 氧化锌 三氧化二铝 |
| 收稿时间： | 2011-03-29 |
| 修稿时间： | 2011-06-21 |
Hydrogen Production from Steam Reforming of Ethanol over Pd Promoted ZnO/Al2O3 Catalysts |
| |
| CHEN Meng-Nan,ZHANG Dong-Yun,THOMPSON Levi T.,MA Zi-Feng.Hydrogen Production from Steam Reforming of Ethanol over Pd Promoted ZnO/Al2O3 Catalysts[J].Acta Physico-Chimica Sinica,2011,27(9):2185-2190. |
| |
| Authors: | CHEN Meng-Nan ZHANG Dong-Yun THOMPSON Levi T MA Zi-Feng |
| |
| Institution: | 1. Department of Chemical Engineering, Shanghai JiaoTong University, Shanghai 200240, P. R. China;
2. Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA;
3. Department of Material Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, P. R. China |
| |
| Abstract: | Pd promoted ZnO/Al2O3 catalysts were prepared by impregnation method.The hydrogen production performance upon the steam reforming of ethanol(SRE) over the prepared catalysts was evaluated with n(H2O):n(C2H5OH) of 3:1 at 450 °C and atmospheric pressure.The results show that H2 and CH3CHO were the main products during the SRE reaction over the prepared catalysts.Different from the ZnO/Al2O3 catalysts,the Pd promoted ZnO/Al2O3 catalysts favored C-C scission during the SRE and thus a higher C2H5OH conversion of 65% and a H2 selectivity of 55% were obtained over the prepared Pd promoted catalysts.BET,transmission electron microscopy(TEM),and thermogravimetry-differential scanning calorimetry-mass spectrometry(TG-DSC-MS) coupling techniques were used to analyze the coking behavior on the catalyst surface.We found that Pd promotion does not prevent the formation of coke on the ZnO/Al2O3 catalysts. |
| |
| Keywords: | Ethanol Hydrogen production Palladium Zinc oxide Alumina |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《物理化学学报》浏览原始摘要信息 |
| 点击此处可从《物理化学学报》下载免费的PDF全文 |
|
