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
Y1 - 2001
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 - n-pentane hydroisomerization
KW - Physical mixture catalyst
KW - Zeolite
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U2 - 10.1016/s0167-2991(01)80015-x
DO - 10.1016/s0167-2991(01)80015-x
M3 - Article
AN - SCOPUS:0035787558
SN - 0167-2991
VL - 138
SP - 69
EP - 76
JO - Studies in Surface Science and Catalysis
JF - Studies in Surface Science and Catalysis
ER -