MFI zeolite coating with intrazeolitic aluminum (acidic) gradient supported on SiC foams to improve the methanol-to-propylene (MTP) reaction
文献类型：期刊论文
| 作者 | Jiao, Yilai1,4,5; Xu, Shaojun1; Jiang, Chunhai2,3; Perdjon, Michal5; Fan, Xiaolei1; Zhang, Jinsong4 |
| 刊名 | APPLIED CATALYSIS A-GENERAL
 |
| 出版日期 | 2018-06-05 |
| 卷号 | 559页码:1-9 |
| 关键词 | MFI zeolite Methanol-to-propylene (MTP) SiC foam Aluminum gradient Anti-coking |
| ISSN号 | 0926-860X |
| DOI | 10.1016/j.apcata.2018.04.006 |
| 通讯作者 | Fan, Xiaolei(xiaolei.fan@manchester.ac.uk) ; Zhang, Jinsong(jshzhang@imr.ac.cn) |
| 英文摘要 | To hinder the deactivation and improve the propylene selectivity in the methanol-to-propylene (MTP) reaction, MFI coating with the intrazeolitic aluminum (acidic) gradient supported on SiC foam support (G-MFI/SiC foam) was proposed. The solid polycrystalline silicon was used in the synthesis of G-MFI/SiC foam catalyst provided a prolonged release of silica nutrient in the liquid phase and suppressed the precipitation phenomena. The resulting MFI coating showed the aluminum gradient along the surface normal direction of SiC foams with ZSM-5 layer (about 20 pm) near the SiC surface followed by the silicalite-1 layer (about 10 pm). The alumina (acidic) gradient in the MFI coating renders a passive outer layer of silicalite-1 with fairly large amount of weak and medium acid sites prevented the coke formation as well as promoted the selectivity to propylene in the MTP reaction. Compared to the conventional ZSM-5/SiC foam catalyst, the G-MFI/SiC foam catalyst showed excellent performance in the MTP reaction with good catalytic longevity (8 h vs. 76 h for > 95% methanol conversion) and low coke deposition (6.7 x 10(-3) wt.% h(-1) vs. 0.26 wt.% h(-1)), as well as high propylene selectivity (ca. 36% vs. 46%). |
| 资助项目 | National 863 Program of China[2012AA030304] ; Engineering and Physical Sciences Research Council[EP/R000670/1] ; China Scholarship Council (CSC)[201604910181] ; University of Manchester |
| WOS研究方向 | Chemistry ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000434887800001 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | National 863 Program of China ; Engineering and Physical Sciences Research Council ; China Scholarship Council (CSC) ; University of Manchester |
| 源URL | [http://ir.imr.ac.cn/handle/321006/128064]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Fan, Xiaolei; Zhang, Jinsong |
| 作者单位 | 1.Univ Manchester, Sch Chem Engn & Analyt Sci, Oxford Rd, Manchester M13 9PL, Lancs, England 2.Key Lab Funct Mat & Applicat Fujian Prov, 600 Ligong Rd, Xiamen 361024, Peoples R China 3.Xiamen Univ Technol, Inst Adv Energy Mat, Sch Mat Sci & Engn, 600 Ligong Rd, Xiamen 361024, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 5.Cardiff Univ, Sch Chem, Cardiff Catalysis Inst, Pk Pl, Cardiff CF10 3AT, S Glam, Wales |
| 推荐引用方式 GB/T 7714 | Jiao, Yilai,Xu, Shaojun,Jiang, Chunhai,et al. MFI zeolite coating with intrazeolitic aluminum (acidic) gradient supported on SiC foams to improve the methanol-to-propylene (MTP) reaction[J]. APPLIED CATALYSIS A-GENERAL,2018,559:1-9. |
| APA | Jiao, Yilai,Xu, Shaojun,Jiang, Chunhai,Perdjon, Michal,Fan, Xiaolei,&Zhang, Jinsong.(2018).MFI zeolite coating with intrazeolitic aluminum (acidic) gradient supported on SiC foams to improve the methanol-to-propylene (MTP) reaction.APPLIED CATALYSIS A-GENERAL,559,1-9. |
| MLA | Jiao, Yilai,et al."MFI zeolite coating with intrazeolitic aluminum (acidic) gradient supported on SiC foams to improve the methanol-to-propylene (MTP) reaction".APPLIED CATALYSIS A-GENERAL 559(2018):1-9. |
入库方式： OAI收割
来源：金属研究所
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