Catalytic oxidation of methane over PdO in wire microcalorimetry
文献类型：期刊论文
| 作者 | Zhang TC(张泰昌) ; Xin YX; Ren ZY; Qi F; Law CK
|
| 刊名 | COMBUSTION AND FLAME
 |
| 出版日期 | 2013-01 |
| 卷号 | 160期号:1页码:149-154 |
| 通讯作者邮箱 | cklaw@princeton.edu |
| 关键词 | Catalytic oxidation Pd-based catalyst Methane combustion Mechanism |
| ISSN号 | 0010-2180 |
| 产权排序 | [Zhang, Taichang; Xin, Yuxuan; Law, Chung K.] Princeton Univ, Dept Mech & Aerosp Engn, Princeton, NJ 08544 USA; [Ren, Zhuyin] Univ Connecticut, Dept Mech Engn, Storrs, CT 06269 USA; [Law, Chung K.] Tsinghua Univ, Ctr Combust Energy, Beijing 100084, Peoples R China; [Zhang, Taichang; Qi, Fei] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Anhui, Peoples R China; [Zhang, Taichang] Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China |
| 通讯作者 | Law, CK (reprint author), Princeton Univ, Dept Mech & Aerosp Engn, Princeton, NJ 08544 USA. |
| 合作状况 | 国际 |
| 中文摘要 | A two-dimensional model of a weakly buoyant flow over a horizontal wire with surface reaction was developed, using a literature mechanism, to simulate the heat release rate of the catalytic oxidation of methane (2 vol.% in air) over a Pd wire with a porous 1-2 mu m PdO surface layer, acquired by wire microcalorimetry over the temperature range of 600-770 K. The experimental and simulation results demonstrate that the catalytic oxidation is characterized by a low-temperature, reaction-controlled regime in which the internal pore surface is totally accessible to the reactions, and a high-temperature regime in which finite-rate pore diffusion also affects the overall heat release rate. Furthermore, the controlling reactions are identified to be the oxidative adsorption of methane, desorption of oxygen, and adsorption of oxygen, with the former two being facilitating and the last retarding. The reaction mechanism was modified using the response surface methodology and the experimental data in the low-temperature reaction-controlled regime, yielding satisfactory prediction of the global activation energy and identification of the role of oxygen coverage in the transition of the global activation energy. |
| 学科主题 | 流体力学 |
| 分类号 | 一类 |
| 收录类别 | SCI ; EI |
| 资助信息 | Air Force Office of Scientific Research |
| 原文出处 | http://dx.doi.org/10.1016/j.combustflame.2012.09.004 |
| 语种 | 英语 |
| WOS记录号 | WOS:000311771500015 |
| 公开日期 | 2013-03-07 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/47017]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Zhang TC,Xin YX,Ren ZY,et al. Catalytic oxidation of methane over PdO in wire microcalorimetry[J]. COMBUSTION AND FLAME,2013,160(1):149-154. |
| APA | Zhang TC,Xin YX,Ren ZY,Qi F,&Law CK.(2013).Catalytic oxidation of methane over PdO in wire microcalorimetry.COMBUSTION AND FLAME,160(1),149-154. |
| MLA | Zhang TC,et al."Catalytic oxidation of methane over PdO in wire microcalorimetry".COMBUSTION AND FLAME 160.1(2013):149-154. |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。