Dehydrogenation of n-dodecane over Pt-Sn/Mg-Al-O catalysts: Investigating the catalyst performance while monitoring the products
文献类型：期刊论文
| 作者 | Lai, Yulong1,2; He, Songbo1; Li, Xianru1,2; Sun, Chenglin1; Seshan, K.3 |
| 刊名 | applied catalysis a-general
 |
| 出版日期 | 2014-01-17 |
| 卷号 | 469页码:74-80 |
| 关键词 | Dehydrogenation Long chain paraffin Pt-Sn Mg-Al-O oxide In situ TOF-MS |
| 英文摘要 | n-dodecane was dehydrogenated over pt-sn/mg-al-o catalysts. al2o3 and mg al-o supports with different mg/ai mole ratio were prepared using a chemical co-precipitation method. the supports and supported pt sn catalysts were characterized using bet, xrd, co-chemisorption, nh3-tpd, and tg. the dehydrogenation products were analyzed by gc. a single photon ionization time-of-flight mass spectrometer (spi-tof-ms) was developed and used to monitor the dehydrogenation products on-line during continuous reactions. adding mg to the supports decreased the specific surface area, increased the pore volume and diameter, moderated the acidity, and changed the strong acidic sites to weak ones. the dehydrogenation activity of the catalysts was inhibited, while the mono-olefin selectivity and yield were enhanced by mg addition. using a 1/3 mg/a1 molar ratio generated the optimal n-dodecene yield over the pt sn/mg al-o catalysts. the tof-ms was reliable for detecting the dehydrogenation products of the long-chain paraffins rapidly, continuously, and accurately. interestingly, tof-ms can be used to monitor the reactions on-line and in situ, providing analyses of the products during high temperature reactions. (c) 2013 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; life sciences & biomedicine |
| 类目[WOS] | chemistry, physical ; environmental sciences |
| 研究领域[WOS] | chemistry ; environmental sciences & ecology |
| 关键词[WOS] | mal2o4 m-mg ; isobutane dehydrogenation ; butane dehydrogenation ; pt-sn/al2o3 catalysts ; metal precursors ; regeneration ; paraffins ; selectivity ; support ; lithium |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000329266500008 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/143203]  |
| 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 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Liaoning, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Twente, MESA Inst Nanotechnol, NL-7500 AE Enschede, Netherlands |
| 推荐引用方式 GB/T 7714 | Lai, Yulong,He, Songbo,Li, Xianru,et al. Dehydrogenation of n-dodecane over Pt-Sn/Mg-Al-O catalysts: Investigating the catalyst performance while monitoring the products[J]. applied catalysis a-general,2014,469:74-80. |
| APA | Lai, Yulong,He, Songbo,Li, Xianru,Sun, Chenglin,&Seshan, K..(2014).Dehydrogenation of n-dodecane over Pt-Sn/Mg-Al-O catalysts: Investigating the catalyst performance while monitoring the products.applied catalysis a-general,469,74-80. |
| MLA | Lai, Yulong,et al."Dehydrogenation of n-dodecane over Pt-Sn/Mg-Al-O catalysts: Investigating the catalyst performance while monitoring the products".applied catalysis a-general 469(2014):74-80. |
入库方式： OAI收割
来源：大连化学物理研究所
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