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Comparison of catalytic performances on nanoscale HZSM-5 and microscale HZSM-5

✍ Scribed by Kunyuan Wang; Xiangsheng Wang

Publisher
Elsevier Science
Year
2008
Tongue
English
Weight
384 KB
Volume
112
Category
Article
ISSN
1387-1811

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✦ Synopsis

Nanoscale HZSM-5 and microscale HZSM-5 were characterized by NH 3 -TPD, XRD, SEM and N 2 adsorption. The catalytic performance of the disproportionation of toluene, the alkylation of toluene with methanol and the cracking reaction of 1,3,5-TMB and 1,2,4-TMB were investigated. The similar reactivity of the disproportionation of toluene and the alkylation of toluene with methanol was obtained over nanoscale HZSM-5 and microscale HZSM-5. The reactivity of 1,3,5-TMB and 1,2,4-TMB over microscale HZSM-5 and nanoscale HZSM-5 was different because the different accessible acid sites and reactant molecule. The reason for the high proportion of external acid sites on ZSM-5 was also discussed.

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