Acidity and catalyst performance of two shape-selective HZSM-5 catalysts for alkylation of toluene with methanol
Li, Guixian; Wu, Chao; Ji, Dong; Dong, Peng; Zhang, Yongfu; Yang, Yong
2020-04
Source PublicationREACTION KINETICS MECHANISMS AND CATALYSIS
ISSN1878-5190
Volume129Issue:2Pages:963-974
Abstract

Two shape-selective HZSM-5 catalysts with similar pore size were prepared by silicalite-1 coating or boron modification, respectively. These catalysts samples were characterized by XRD, SEM, NH3-TPD, Py-IR and N-2 adsorption-desorption isotherms and tested in the alkylation reaction of toluene with methanol. The results indicated that the boron modification weakened the acidity but increased the total amount of acidity sites, while the silicalite-1 coating led to the decrease of the strong acidity and total acidity. Due to the specific shape-selectivity that the micropore architecture afforded and the increment of the weak acid percentage, both catalysts exhibited a high p-xylene selectivity over 98%. Moreover, the higher toluene conversion would be retained once the strong acid sites in the micropores were remained as many as possible under the premise of the shape-selectivity of pore size.

KeywordAcidity Shape-selective Toluene p-Xylene Alkylation
DOI10.1007/s11144-020-01732-9
Indexed BySCI ; SCIE ; EI
Language英语
Funding ProjectKey Science and Technology Foundation of Gansu Province[2016GS09293] ; Natural Science Foundation of Gansu Province[18JR3RA143]
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
WOS IDWOS:000511045600001
PublisherSPRINGER
EI Accession Number20200708150061
EI KeywordsCatalyst selectivity
EI Classification Number482.2 Minerals - 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 801.1 Chemistry, General - 802.2 Chemical Reactions - 803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products Generally - 813.2 Coating Materials - 931.2 Physical Properties of Gases, Liquids and Solids
Source libraryWOS
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttps://ir.lut.edu.cn/handle/2XXMBERH/64178
Collection石油化工学院
Corresponding AuthorYang, Yong
AffiliationLanzhou Univ Technol, Sch Petrochem Engn, Lanzhou 730050, Peoples R China
First Author AffilicationLanzhou University of Technology
Corresponding Author AffilicationLanzhou University of Technology
First Signature AffilicationLanzhou University of Technology
Recommended Citation
GB/T 7714
Li, Guixian,Wu, Chao,Ji, Dong,et al. Acidity and catalyst performance of two shape-selective HZSM-5 catalysts for alkylation of toluene with methanol[J]. REACTION KINETICS MECHANISMS AND CATALYSIS,2020,129(2):963-974.
APA Li, Guixian,Wu, Chao,Ji, Dong,Dong, Peng,Zhang, Yongfu,&Yang, Yong.(2020).Acidity and catalyst performance of two shape-selective HZSM-5 catalysts for alkylation of toluene with methanol.REACTION KINETICS MECHANISMS AND CATALYSIS,129(2),963-974.
MLA Li, Guixian,et al."Acidity and catalyst performance of two shape-selective HZSM-5 catalysts for alkylation of toluene with methanol".REACTION KINETICS MECHANISMS AND CATALYSIS 129.2(2020):963-974.
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