TY - JOUR
T1 - Regioselective hydrogenation of 1-naphthol over supported Pt and Pd catalysts for producing high-temperature jet fuel stabilizer
AU - Shao, Jingyan
AU - Song, Chunshan
N1 - Funding Information:
We are very grateful to Prof. Harold H. Schobert for his encouragement, support and helpful discussions. We also wish to thank the US Air Force Office of Scientific Research (AFOSR) and Wright Laboratory of USAF/WPAFB for providing financial support.
PY - 2001/2/1
Y1 - 2001/2/1
N2 - Supported Pt and Pd catalysts were examined for selective hydrogenation of 1-naphthol to form tetrahydronaphthol (THNol). Five kinds of supports were used: HY zeolite with SiO2/Al2O3 of 40, HM zeolite with SiO2/Al2O3 of 38, γ-Al2O3, SiO2 and TiO2. Among these five supports, only TiO2-supported catalysts displayed selectivity for 1-naphthol hydrogenation towards 1,2,3,4-THNol. Under the same reaction conditions, Pd/TiO2 catalysts show much higher catalytic activity and higher selectivity to 1,2,3,4-THNol than Pt/TiO2 catalysts, and more tetralin was observed in product distribution for Pd catalysts. On the other hand, Pt/TiO2 showed higher selectivity for 5,6,7,8-THNol. By using Pt and Pd bimetallic catalysts, much higher selectivity to 1,2,3,4-THNol has been achieved. Product distribution depends strongly on Pt/Pd ratio. The selectivity of 1,2,3,4-THNol decreases with the increase in Pt/Pd weight ratio. The bimetallic catalyst with Pt/Pd weight ratio of 0.3 shows the highest 1,2,3,4-THNol selectivity up to 22.6 mol% at 150 °C, 500 psi and 60 min. Tetralone has been found to be an intermediate for hydrogenation of 1-naphthol to 1,2,3,4-THNol. Further hydrogenation of 1,2,3,4-THNol towards tetralin is much faster than that of 5,6,7,8-THNol.
AB - Supported Pt and Pd catalysts were examined for selective hydrogenation of 1-naphthol to form tetrahydronaphthol (THNol). Five kinds of supports were used: HY zeolite with SiO2/Al2O3 of 40, HM zeolite with SiO2/Al2O3 of 38, γ-Al2O3, SiO2 and TiO2. Among these five supports, only TiO2-supported catalysts displayed selectivity for 1-naphthol hydrogenation towards 1,2,3,4-THNol. Under the same reaction conditions, Pd/TiO2 catalysts show much higher catalytic activity and higher selectivity to 1,2,3,4-THNol than Pt/TiO2 catalysts, and more tetralin was observed in product distribution for Pd catalysts. On the other hand, Pt/TiO2 showed higher selectivity for 5,6,7,8-THNol. By using Pt and Pd bimetallic catalysts, much higher selectivity to 1,2,3,4-THNol has been achieved. Product distribution depends strongly on Pt/Pd ratio. The selectivity of 1,2,3,4-THNol decreases with the increase in Pt/Pd weight ratio. The bimetallic catalyst with Pt/Pd weight ratio of 0.3 shows the highest 1,2,3,4-THNol selectivity up to 22.6 mol% at 150 °C, 500 psi and 60 min. Tetralone has been found to be an intermediate for hydrogenation of 1-naphthol to 1,2,3,4-THNol. Further hydrogenation of 1,2,3,4-THNol towards tetralin is much faster than that of 5,6,7,8-THNol.
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U2 - 10.1016/S0920-5861(00)00545-9
DO - 10.1016/S0920-5861(00)00545-9
M3 - Article
AN - SCOPUS:0035250033
SN - 0920-5861
VL - 65
SP - 59
EP - 67
JO - Catalysis Today
JF - Catalysis Today
IS - 1
ER -