Effect of variations in pore structure and acidity of alkali treated ZSM-5 on the isomerization performance
文献类型：期刊论文
| 作者 | Song, Yue-Qin; Feng, Yan-Long; Liu, Feng; Kang, Cheng-Lin; Zhou, Xiao-Long1; Xu, Long-Ya2; Yu, Guo-Xian3 |
| 刊名 | journal of molecular catalysis a-chemical
 |
| 出版日期 | 2009-09-01 |
| 卷号 | 310期号:1-2页码:130-137 |
| 关键词 | Alkali treatment Hydro-isomerization Acidity Mesopore Pt/ZSM-5 |
| 英文摘要 | a series of alkali treated zsm-5 samples were prepared and the effects of the alkali treatment conditions on the n-hexane isomerization performance of pt/zsm-5 were investigated. the characterization by xrd, n(2)-adsorption, xrf, nh(3)-tpd, py-ir and nmr revealed that alkali treatment conditions had the effects on the crystallinity, textural property, si/al ratio and acidity of zsm-5. mild alkali treatment led to the reduction of the strong acid sites and did not distinctly change the pore structure, whereas severe alkali treatment resulted in the creation of the stronger acid sites and new mesopores. the correlation of the acidity and pore structure and isomerization behavior was established. it was proposed that the conversion of n-hexane was dependent on the amount of strong acid sites and irrelevant to the properties of acid sites and the pore structure. however, the selectivity for iso-hexanes was irrelevant to both the acidity and pore structure. the relative amount of dimethylbutanes (dmb) and methylpentanes (mp) in isomers was related not only to the pore structure, but to the acidity of zsm-5. the suitable alkali treatment condition facilitated the high yield of isomers and the formation of more dmb. (c) 2009 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, physical |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | different aluminum content ; n-hexane isomerization ; high-silica zeolites ; skeletal isomerization ; hydroisomerization ; catalysts ; mesoporosity ; desilication ; dissolution ; selectivity |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000269426900016 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/141321]  |
| 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.E China Univ Sci & Technol, Res Inst Petr Proc, Petr Proc Res Ctr, Shanghai 200237, Peoples R China 2.Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China 3.Jianghan Univ, Sch Chem & Environm Engn, Wuhan 430056, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Yue-Qin,Feng, Yan-Long,Liu, Feng,et al. Effect of variations in pore structure and acidity of alkali treated ZSM-5 on the isomerization performance[J]. journal of molecular catalysis a-chemical,2009,310(1-2):130-137. |
| APA | Song, Yue-Qin.,Feng, Yan-Long.,Liu, Feng.,Kang, Cheng-Lin.,Zhou, Xiao-Long.,...&Yu, Guo-Xian.(2009).Effect of variations in pore structure and acidity of alkali treated ZSM-5 on the isomerization performance.journal of molecular catalysis a-chemical,310(1-2),130-137. |
| MLA | Song, Yue-Qin,et al."Effect of variations in pore structure and acidity of alkali treated ZSM-5 on the isomerization performance".journal of molecular catalysis a-chemical 310.1-2(2009):130-137. |
入库方式： OAI收割
来源：大连化学物理研究所
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