Performance of Pt/MgAPO-11 catalysts in the hydroisomerization of n-dodecane
文献类型：期刊论文
| 作者 | Yang, XM; Xu, ZS; Tian, ZJ; Ma, HJ; Xu, YP; Qu, W; Lin, LW |
| 刊名 | catalysis letters
 |
| 出版日期 | 2006-07-01 |
| 卷号 | 109期号:3-4页码:139-145 |
| 关键词 | hydroisomerization n-dodecane MgAPO-11 AEL molecular sieves |
| 产权排序 | 1;1 |
| 通讯作者 | 田志坚 |
| 英文摘要 | mgapo-11 molecular sieves with varying mg contents synthesized by the hydrothermal method were used as supports for bifunctional pt/mgapo-11 catalysts. mgapo-11 molecular sieves and the corresponding catalysts were characterized by x-ray diffraction (xrd), x-ray fluorescence spectroscopy (xrf), temperature-programmed desorption of nh3 (nh3-tpd), differential thermogravimetric (dtg) analysis, temperature-programmed reduction of h-2 (h-2-tpr), h-2 chemisorption and catalytic reaction evaluation. the results indicated that the acidity generated via the substitution of mg2+ for al3+ in the framework increased with the mg content. acting as acidic components, the mgapo-11 molecular sieves loaded with pt were tested in the hydroisomerization of n-dodecane. optimum isomer yield was obtained over the pt/mgapo-11 catalyst that had neither the highest acidity nor the highest pt loading among the tested catalysts. in fact, the activity and the isomer yield both could attain a maximum on 0.5 wt.% pt/mgapo-11 catalysts with differing mg contents. a lower mg content resulted in an insufficient acidity, whilst a higher mg content weakened the dehydrogenation/hydrogenation function of the pt. these inappropriate balances between the acidic and the metallic functions of the catalysts would lead to low activities and isomer yields. on the other hand, the 0.5 wt.% pt/mgapo-11(3) catalyst was found to have a good balance between the acidic and the metallic functions, and thus exhibited both high activity and isomer yield in comparison with the conventional 0.5 wt.% pt/sapo-11 catalyst. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, physical |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | molecular-sieves ; acid strength ; heptane ; hydrocracking ; isomerization ; pt/sapo-11 ; sapo-11 ; decane ; hydroconversion ; dehydration |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000238155200004 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/97947]  |
| 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, Lab Nat Gas Utilizat & Appl Catalysis, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, XM,Xu, ZS,Tian, ZJ,et al. Performance of Pt/MgAPO-11 catalysts in the hydroisomerization of n-dodecane[J]. catalysis letters,2006,109(3-4):139-145. |
| APA | Yang, XM.,Xu, ZS.,Tian, ZJ.,Ma, HJ.,Xu, YP.,...&Lin, LW.(2006).Performance of Pt/MgAPO-11 catalysts in the hydroisomerization of n-dodecane.catalysis letters,109(3-4),139-145. |
| MLA | Yang, XM,et al."Performance of Pt/MgAPO-11 catalysts in the hydroisomerization of n-dodecane".catalysis letters 109.3-4(2006):139-145. |
入库方式： OAI收割
来源：大连化学物理研究所
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