Hydroisomerization activity and selectivity of n-dodecane over modified Pt/ZSM-22 catalysts
文献类型：期刊论文
| 作者 | Wang, Gang1,2; Liu, Quanjie2; Su, Weiguang1; Li, Xiujie1; Jiang, Zongxuan1; Fang, Xiangchen2; Han, Chongren2; Li, Can1 |
| 刊名 | applied catalysis a-general
 |
| 出版日期 | 2008-02-01 |
| 卷号 | 335期号:1页码:20-27 |
| 关键词 | hydroisomerization n-dodecane ZSM-22 FT-IR NMR |
| 产权排序 | 1;1 |
| 通讯作者 | 李灿 |
| 英文摘要 | the hydroisomerization of n-dodecane was investigated over pt supported on unmodified zsm-22 and on modified zsm-22. the effect of zsm-22 modification on pt/zsm-22 acidity and on catalytic performance is discussed in detail using mas nmr and ft-ir results. the zsm-22 was modified by nh4+ ion-exchange, hno3 or (nh4)(2)sif6 treatment, and by steam treatment in order to tune the acidity of the catalysts. the unmodified zsm-22 catalyst shows very low activity in the hydroisomerization of n-dodecane due to the lowest acidity. the conversions of the catalysts for the reaction of n-dodecane are increased from 1.1% to 96.6% at 300 degrees c as the acidity of the zsm-22 is increased from 0.043 mmol/g to 0.329 mmol/g, but the isomerization selectivity is reduced. the catalyst that was modified by the combination of nh4+ ion-exchange and (nh4)2sif6 treatment possesses the bronsted acid sites with medium strength and shows the high isododecane selectivity (88.0%) under high conversion (87.5%) at 300 degrees c. (c) 2007 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] | zeolite catalysts ; molecular-sieves ; pt/sapo-11 catalyst ; alkanes ; isomerization ; heptane ; hydrocracking ; octane ; nmr ; zsm-22 |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000253366100004 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/101319]  |
| 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, State Key Catalysis, Dalian 116023, Peoples R China 2.SINOPEC, Fushun Res Inst Petr & Petrochem, Fushun 113001, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Gang,Liu, Quanjie,Su, Weiguang,et al. Hydroisomerization activity and selectivity of n-dodecane over modified Pt/ZSM-22 catalysts[J]. applied catalysis a-general,2008,335(1):20-27. |
| APA | Wang, Gang.,Liu, Quanjie.,Su, Weiguang.,Li, Xiujie.,Jiang, Zongxuan.,...&Li, Can.(2008).Hydroisomerization activity and selectivity of n-dodecane over modified Pt/ZSM-22 catalysts.applied catalysis a-general,335(1),20-27. |
| MLA | Wang, Gang,et al."Hydroisomerization activity and selectivity of n-dodecane over modified Pt/ZSM-22 catalysts".applied catalysis a-general 335.1(2008):20-27. |
入库方式： OAI收割
来源：大连化学物理研究所
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