Butene catalytic cracking to propene and ethene over potassium modified ZSM-5 catalysts
文献类型：期刊论文
| 作者 | Zhu, XX; Liu, SL; Song, YQ; Xu, LY |
| 刊名 | catalysis letters
 |
| 出版日期 | 2005-10-01 |
| 卷号 | 103期号:3-4页码:201-210 |
| 关键词 | butene catalytic cracking K modification propene ethene ZSM-5 catalyst |
| 产权排序 | 1;1 |
| 通讯作者 | 徐龙伢 |
| 英文摘要 | catalytic cracking of butene over potassium modified zsm-5 catalysts was carried out in a fixed-bed microreactor. by increasing the k loading on the zsm-5, butene conversion and ethene selectivity decreased almost linearly, while propene selectivity increased first, then passed through a maximum (about 50% selectivity) with the addition of ca. 0.7-1.0% k, and then decreased slowly with further increasing of the k loading. the reaction conditions were 620 degrees c, whsv 3.5 h(-1), 0.1 mpa 1-butene partial pressure and 1 h of time on stream. both by potassium modification of the zsm-5 zeolite and by n(2) addition in the butene feed could enhance the selectivity towards propene effectively, but the catalyst stability did not show any improvement. on the other hand, addition of water to the butene feed could not only increase the butene conversion, but also improve the stability of the 0.7%k/zsm-5 catalyst due to the effective removal of the coke formed, as demonstrated by the tpo spectra. xrd results indicated that the zsm-5 structure of the 0.07% k/zsm-5 catalyst was not destroyed even under this serious condition of adding water at 620 degrees c. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, physical |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | skeletal isomerization ; mo/hzsm-5 catalyst ; dilute ethene ; zeolite ; aromatization ; performance ; conversion ; mechanism ; methane ; acidity |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000232030200007 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/92687]  |
| 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 Lab Catalysis, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Sch, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, XX,Liu, SL,Song, YQ,et al. Butene catalytic cracking to propene and ethene over potassium modified ZSM-5 catalysts[J]. catalysis letters,2005,103(3-4):201-210. |
| APA | Zhu, XX,Liu, SL,Song, YQ,&Xu, LY.(2005).Butene catalytic cracking to propene and ethene over potassium modified ZSM-5 catalysts.catalysis letters,103(3-4),201-210. |
| MLA | Zhu, XX,et al."Butene catalytic cracking to propene and ethene over potassium modified ZSM-5 catalysts".catalysis letters 103.3-4(2005):201-210. |
入库方式： OAI收割
来源：大连化学物理研究所
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