Origin of the Low Olefin Production over HZSM-22 and HZSM-23 Zeolites: External Acid Sites and Pore Mouth Catalysis
文献类型：期刊论文
| 作者 | Wei, Fang-Fang1; Cui, Zhi-Min2; Meng, Xiang-Ju3; Cao, Chang-Yan1; Xiao, Feng-Shou3; Song, Wei-Guo1 |
| 刊名 | ACS CATALYSIS
 |
| 出版日期 | 2014-02-01 |
| 卷号 | 4期号:2页码:529-534 |
| 关键词 | Zsm-22 Zeolite Mto Acid Treatment Coking External Surface Pore Mouth Catalysis |
| ISSN号 | 2155-5435 |
| DOI | 10.1021/cs400855p |
| 英文摘要 | The methanol-to-olefin (MTO) reaction was studied over two one-dimensional 10-ring zeolites with similar pore structures: ZSM-22 (TON) and ZSM-23 (MTT). It was found that the initial low but detectable production of olefins over both zeolites was catalyzed by external and/or pore mouth acid sites through hydrocarbon pool mechanism. Evidence is listed as follows: The uncalcined HZSM-22 had similar MTO activity as the calcined catalyst. The HZSM-22 zeolite with smaller crystal size had higher MTO activity. Both zeolites treated by HNO3 to selectively leach the external acid sites showed significantly reduced initial MTO activity. Both zeolites coked through catalytic cracking of 1,3,5-triisopropylbenzene showed significantly lower initial MTO activity. This conclusion may also be suitable for other one-dimensional zeolites with pore size below 5.7 angstrom in the MTO reaction. |
| 语种 | 英语 |
| WOS记录号 | WOS:000331164000020 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/51087]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Song, Wei-Guo |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Lab Mol Nanostruct & Nanotechnol, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China 2.Beijing Univ Aeronaut & Astronaut, Sch Chem & Environm Engn, Beijing 100191, Peoples R China 3.Zhejiang Univ, Key Lab Appl Chem Zhejiang Prov, Hangzhou 310028, Zhejiang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wei, Fang-Fang,Cui, Zhi-Min,Meng, Xiang-Ju,et al. Origin of the Low Olefin Production over HZSM-22 and HZSM-23 Zeolites: External Acid Sites and Pore Mouth Catalysis[J]. ACS CATALYSIS,2014,4(2):529-534. |
| APA | Wei, Fang-Fang,Cui, Zhi-Min,Meng, Xiang-Ju,Cao, Chang-Yan,Xiao, Feng-Shou,&Song, Wei-Guo.(2014).Origin of the Low Olefin Production over HZSM-22 and HZSM-23 Zeolites: External Acid Sites and Pore Mouth Catalysis.ACS CATALYSIS,4(2),529-534. |
| MLA | Wei, Fang-Fang,et al."Origin of the Low Olefin Production over HZSM-22 and HZSM-23 Zeolites: External Acid Sites and Pore Mouth Catalysis".ACS CATALYSIS 4.2(2014):529-534. |
入库方式： OAI收割
来源：化学研究所
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