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MFI zeolite coating with intrazeolitic aluminum (acidic) gradient supported on SiC foams to improve the methanol-to-propylene (MTP) reaction
Jiao, Yilai1,2,3; Xu, Shaojun2; Jiang, Chunhai4,5; Perdjon, Michal3; Fan, Xiaolei2; Zhang, Jinsong1
Corresponding AuthorFan, Xiaolei(xiaolei.fan@manchester.ac.uk) ; Zhang, Jinsong(jshzhang@imr.ac.cn)
2018-06-05
Source PublicationAPPLIED CATALYSIS A-GENERAL
ISSN0926-860X
Volume559Pages:1-9
AbstractTo 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%).
KeywordMFI zeolite Methanol-to-propylene (MTP) SiC foam Aluminum gradient Anti-coking
Funding OrganizationNational 863 Program of China ; Engineering and Physical Sciences Research Council ; China Scholarship Council (CSC) ; University of Manchester
DOI10.1016/j.apcata.2018.04.006
Indexed BySCI
Language英语
Funding ProjectNational 863 Program of China[2012AA030304] ; Engineering and Physical Sciences Research Council[EP/R000670/1] ; China Scholarship Council (CSC)[201604910181] ; University of Manchester
WOS Research AreaChemistry ; Environmental Sciences & Ecology
WOS SubjectChemistry, Physical ; Environmental Sciences
WOS IDWOS:000434887800001
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:18[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/128065
Collection中国科学院金属研究所
Corresponding AuthorFan, Xiaolei; Zhang, Jinsong
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China
2.Univ Manchester, Sch Chem Engn & Analyt Sci, Oxford Rd, Manchester M13 9PL, Lancs, England
3.Cardiff Univ, Sch Chem, Cardiff Catalysis Inst, Pk Pl, Cardiff CF10 3AT, S Glam, Wales
4.Xiamen Univ Technol, Inst Adv Energy Mat, Sch Mat Sci & Engn, 600 Ligong Rd, Xiamen 361024, Peoples R China
5.Key Lab Funct Mat & Applicat Fujian Prov, 600 Ligong Rd, Xiamen 361024, Peoples R China
Recommended Citation
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.
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