| 二甲醚水蒸气重整制氢的ZSM-5和Cu-Zn的复合催化体系(英文) | |
| 冯冬梅 ; 左宜赞 ; 王德峥 ; 王金福 ; FENG Dongmei ; ZUO Yizan ; WANG Dezheng ; WANG Jinfu | |
| 2010-06-10 ; 2010-06-10 | |
| 关键词 | 二甲醚 水蒸气重整 制氢 酸性催化剂 铜基催化剂 dimethyl ether steam reforming hydrogen production acid catalyst copper catalyst TQ116.2 |
| 其他题名 | Steam Reforming of Dimethyl Ether over Coupled ZSM-5 and Cu-Zn-Based Catalysts |
| 中文摘要 | 二甲醚水蒸气重整制氢反应是燃料电池理想的供氢方式之一.探讨了二甲醚水蒸气重整过程中的反应与反应、反应与传热的耦合协同效应.采用二甲醚水解催化剂ZSM-5(硅铝比为25)和甲醇水蒸气重整催化剂(Cu-Zn系列及商用Cu-Zn-Al催化剂)混合制得二甲醚水蒸气重整的复合催化剂.在固定床反应装置中评价了催化剂活性并对催化剂进行了透射电镜、X射线衍射及N2吸附表征.结果表明,复合催化剂的活性除了受催化剂组成和铜含量的影响外,还与Al和Zr的量有关.在Cu:Zn摩尔比为60:30时,Al和Zr的同时加入使催化剂中Cu晶粒分散最好,催化剂具有较高的低温活性,二甲醚在空速为4922ml/(g·h)和260°C下的转化率达到72%.; Dimethyl ether(DME)steam reforming(SR)is one possible source of hydrogen for fuel cells.The synergistic effect of catalyst coupling for the DME SR process and the coupling of reaction-heat transfer was studied.A DME hydrolysis catalyst comprising ZSM-5(Si/Al = 25)and a series of methanol steam reforming catalysts(a series of Cu-Zn-based catalysts and a commercial Cu-Zn-Al catalyst)were used for DME SR.The evaluation of catalytic activity was conducted in a fixed-bed reactor.The catalysts were characterized by scanning electron microscopy,X-ray diffraction,and N2 adsorption.The activity and selectivity were influenced by the catalyst composition and cop-per content,and also the content of Al and Zr.A Cu:Zn molar ratio of 60:30 together with Al and Zr gave the best dispersion of Cu crystals and the highest low-temperature catalytic activity,with a DME conversion of 72 % at 260 癈 and a space velocity of 4 922 ml/(g穐).; Supported by the National Natural Science Foundation of China (20773075) |
| 语种 | 英语 ; 英语 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/63857]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 冯冬梅,左宜赞,王德峥,等. 二甲醚水蒸气重整制氢的ZSM-5和Cu-Zn的复合催化体系(英文)[J],2010, 2010. |
| APA | 冯冬梅.,左宜赞.,王德峥.,王金福.,FENG Dongmei.,...&WANG Jinfu.(2010).二甲醚水蒸气重整制氢的ZSM-5和Cu-Zn的复合催化体系(英文).. |
| MLA | 冯冬梅,et al."二甲醚水蒸气重整制氢的ZSM-5和Cu-Zn的复合催化体系(英文)".(2010). |
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