Comparison of hydrogen spillover effect between cumene cracking and n-pentane hydroisomerization over Pt/SiO2+H-Beta using pulse reaction method

Toshiaki Kusakari; Keiichi Tomishige; Kaoru Fujimoto

doi:10.1016/s0167-2991(01)80015-x

Comparison of hydrogen spillover effect between cumene cracking and n-pentane hydroisomerization over Pt/SiO₂+H-Beta using pulse reaction method

Toshiaki Kusakari, Keiichi Tomishige, Kaoru Fujimoto

Research output: Contribution to journal › Article › peer-review

Abstract

The effect of spilt-over hydrogen on the catalytic activity of physically mixed catalyst composed of Pt/SiO₂ and H-Beta for cumene hydrocracking and n-pentane hydroisomerization has been investigated by using pulse reaction method. The stable activity was observed under hydrogen atmosphere in two reactions over Pt/SiO₂ + H-Beta. Under this reaction condition, split-over hydrogen species is formed and inhibited the catalytic deactivation. The reaction order with respect to hydrogen in cumene cracking was negative. On the other hand, reaction order in n-pentane hydroisomerization was much dependent on the hydrogen pressure range. Under low hydrogen pressure, The positive effect of hydrogen on the catalytic activity in n-pentane hydroisomerization was observed.

Original language	English
Pages (from-to)	69-76
Number of pages	8
Journal	Studies in Surface Science and Catalysis
Volume	138
DOIs	https://doi.org/10.1016/s0167-2991(01)80015-x
Publication status	Published - 2001 Jan 1
Externally published	Yes

Keywords

Bifunctional catalyst
Cumene cracking
Hydrogen spillover
Physical mixture catalyst
Zeolite
n-pentane hydroisomerization

ASJC Scopus subject areas

Catalysis
Condensed Matter Physics
Physical and Theoretical Chemistry
Surfaces, Coatings and Films
Materials Chemistry

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@article{f4107cba144847d7b092b63087e98b4c,

title = "Comparison of hydrogen spillover effect between cumene cracking and n-pentane hydroisomerization over Pt/SiO2+H-Beta using pulse reaction method",

abstract = "The effect of spilt-over hydrogen on the catalytic activity of physically mixed catalyst composed of Pt/SiO2 and H-Beta for cumene hydrocracking and n-pentane hydroisomerization has been investigated by using pulse reaction method. The stable activity was observed under hydrogen atmosphere in two reactions over Pt/SiO2 + H-Beta. Under this reaction condition, split-over hydrogen species is formed and inhibited the catalytic deactivation. The reaction order with respect to hydrogen in cumene cracking was negative. On the other hand, reaction order in n-pentane hydroisomerization was much dependent on the hydrogen pressure range. Under low hydrogen pressure, The positive effect of hydrogen on the catalytic activity in n-pentane hydroisomerization was observed.",

keywords = "Bifunctional catalyst, Cumene cracking, Hydrogen spillover, Physical mixture catalyst, Zeolite, n-pentane hydroisomerization",

author = "Toshiaki Kusakari and Keiichi Tomishige and Kaoru Fujimoto",

year = "2001",

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doi = "10.1016/s0167-2991(01)80015-x",

language = "English",

volume = "138",

pages = "69--76",

journal = "Studies in Surface Science and Catalysis",

issn = "0167-2991",

publisher = "Elsevier BV",

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TY - JOUR

T1 - Comparison of hydrogen spillover effect between cumene cracking and n-pentane hydroisomerization over Pt/SiO2+H-Beta using pulse reaction method

AU - Kusakari, Toshiaki

AU - Tomishige, Keiichi

AU - Fujimoto, Kaoru

PY - 2001/1/1

Y1 - 2001/1/1

N2 - The effect of spilt-over hydrogen on the catalytic activity of physically mixed catalyst composed of Pt/SiO2 and H-Beta for cumene hydrocracking and n-pentane hydroisomerization has been investigated by using pulse reaction method. The stable activity was observed under hydrogen atmosphere in two reactions over Pt/SiO2 + H-Beta. Under this reaction condition, split-over hydrogen species is formed and inhibited the catalytic deactivation. The reaction order with respect to hydrogen in cumene cracking was negative. On the other hand, reaction order in n-pentane hydroisomerization was much dependent on the hydrogen pressure range. Under low hydrogen pressure, The positive effect of hydrogen on the catalytic activity in n-pentane hydroisomerization was observed.

AB - The effect of spilt-over hydrogen on the catalytic activity of physically mixed catalyst composed of Pt/SiO2 and H-Beta for cumene hydrocracking and n-pentane hydroisomerization has been investigated by using pulse reaction method. The stable activity was observed under hydrogen atmosphere in two reactions over Pt/SiO2 + H-Beta. Under this reaction condition, split-over hydrogen species is formed and inhibited the catalytic deactivation. The reaction order with respect to hydrogen in cumene cracking was negative. On the other hand, reaction order in n-pentane hydroisomerization was much dependent on the hydrogen pressure range. Under low hydrogen pressure, The positive effect of hydrogen on the catalytic activity in n-pentane hydroisomerization was observed.

KW - Bifunctional catalyst

KW - Cumene cracking

KW - Hydrogen spillover

KW - Physical mixture catalyst

KW - Zeolite

KW - n-pentane hydroisomerization

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VL - 138

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JO - Studies in Surface Science and Catalysis

JF - Studies in Surface Science and Catalysis

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