PdC formation in ultra-thin Pd membranes during separation of H-2/CO mixtures
文献类型：期刊论文
| 作者 | Li, Hui; Goldbach, Andreas; Li, Wenzhao; Xu, Hengyong |
| 刊名 | journal of membrane science
 |
| 出版日期 | 2007-08-01 |
| 卷号 | 299期号:1-2页码:130-137 |
| 关键词 | Pd membrane carbon monoxide competitive adsorption carbon deposition palladium carbide |
| 英文摘要 | the influence of typical syngas co concentrations (20-33%) on the stability of 3 mu m thick pd membranes was investigated between 593 and 773 k in the limit of maximum h-2 extraction. two kinds of co inhibition effects were observed: co adsorption and carbon deposition resulting from catalytic decomposition of co on the pd surface. co adsorption reduced the h-2 permeation rate in particular below 623 k due to reversible blocking of pd surface sites. carbon deposition became more severe at higher temperatures and feed gas velocities and accumulated with time. in particular, the formation of a pd1-xcx phase was observed above 723 k with x = 0.1. the propensity to pdc formation increased with temperature and the co concentration in the retentate. although the carbon incorporated into the pd membrane could be effectively removed by h-2 and o-2 at 723 k, an irreversible increase of the n-2 flux after the removal of the carbon was observed in particular after treatment with o-2. (c) 2007 elsevier bx all rights reserved. |
| WOS标题词 | science & technology ; technology ; physical sciences |
| 类目[WOS] | engineering, chemical ; polymer science |
| 研究领域[WOS] | engineering ; polymer science |
| 关键词[WOS] | palladium membrane ; hydrogen permeation ; supported palladium ; carbon-monoxide ; reactors ; co ; dehydrogenation ; steam ; hydrocarbons ; adsorption |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000248430400015 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/140474]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Hui,Goldbach, Andreas,Li, Wenzhao,et al. PdC formation in ultra-thin Pd membranes during separation of H-2/CO mixtures[J]. journal of membrane science,2007,299(1-2):130-137. |
| APA | Li, Hui,Goldbach, Andreas,Li, Wenzhao,&Xu, Hengyong.(2007).PdC formation in ultra-thin Pd membranes during separation of H-2/CO mixtures.journal of membrane science,299(1-2),130-137. |
| MLA | Li, Hui,et al."PdC formation in ultra-thin Pd membranes during separation of H-2/CO mixtures".journal of membrane science 299.1-2(2007):130-137. |
入库方式： OAI收割
来源：大连化学物理研究所
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