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 | |
刊名 | REACTION KINETICS MECHANISMS AND CATALYSIS |
2020-02-04 | |
卷号 | 129期号:2页码:963-974 |
关键词 | Acidity Shape-selective Toluene p-Xylene Alkylation |
ISSN号 | 1878-5190 |
DOI | 10.1007/s11144-020-01732-9 |
英文摘要 | 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. |
资助项目 | Key Science and Technology Foundation of Gansu Province[2016GS09293] ; Natural Science Foundation of Gansu Province[18JR3RA143] |
WOS研究方向 | Chemistry |
语种 | 英语 |
出版者 | SPRINGER |
WOS记录号 | WOS:000511045600001 |
状态 | 已发表 |
内容类型 | 期刊论文 |
源URL | [http://ir.lut.edu.cn/handle/2XXMBERH/64178] |
专题 | 石油化工学院 |
通讯作者 | Yang, Yong |
作者单位 | Lanzhou Univ Technol, Sch Petrochem Engn, Lanzhou 730050, Peoples R China |
推荐引用方式 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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