Study of the preparation and composition of the metallic function for the selective hydrogenation of CO2to gasoline over bifunctional catalysts

2003 ◽  
Vol 78 (2-3) ◽  
pp. 161-166 ◽  
Author(s):  
Javier Ereña ◽  
José M Arandes ◽  
Raúl Garoña ◽  
Ana G Gayubo ◽  
Javier Bilbao
Keyword(s):  
Selective Hydrogenation ◽  
Bifunctional Catalysts ◽  
Metallic Function

Direct and selective hydrogenation of CO2 to ethylene and propene by bifunctional catalysts

2017 ◽  
Vol 7 (23) ◽  
pp. 5602-5607 ◽  
Author(s):  
Jiajian Gao ◽  
Chunmiao Jia ◽  
Bin Liu
Keyword(s):  
Selective Hydrogenation ◽  
High Selectivity ◽  
Bifunctional Catalyst ◽  
Bifunctional Catalysts ◽  
Hydrogenation Of Co2 ◽  
Synthesis Of Methanol

A bifunctional catalyst was designed to directly and selectively hydrogenate CO2 to ethylene and propene with a high selectivity of 80–90% in hydrocarbons by combining the synthesis of methanol and methanol-to-olefins processes.

scholarly journals Origin of synergistic effects in bicomponent cobalt oxide-platinum catalysts for selective hydrogenation reaction

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Jiankang Zhang ◽  
Zhe Gao ◽  
Sen Wang ◽  
Guofu Wang ◽  
Xiaofeng Gao ◽  
...  
Keyword(s):  
Oxygen Vacancy ◽  
Selective Hydrogenation ◽  
Active Sites ◽  
Synergistic Effects ◽  
Atomic Layer ◽  
Hydrogenation Reaction ◽  
Bifunctional Catalysts ◽  
Pt Catalysts ◽  
Catalytic Systems ◽  
Layer Deposition

Abstract The synergistic nature of bicomponent catalysts remains a challenging issue, due to the difficulty in constructing well-defined catalytic systems. Here we study the origin of synergistic effects in CoOx-Pt catalysts for selective hydrogenation by designing a series of closely contacted CoOxPt/TiO2 and spatially separated CoOx/TiO2/Pt catalysts by atomic layer deposition (ALD). For CoOx/TiO2/Pt, CoOx and platinum are separated by the walls of titania nanotubes, and the CoOx-Pt intimacy can be precisely tuned. Like CoOxPt/TiO2, the CoOx/TiO2/Pt shows higher selectivity to cinnamyl alcohol than monometallic TiO2/Pt, indicating that the CoOx-Pt nanoscale intimacy almost has no influence on the selectivity. The enhanced selectivity is ascribed to the increased oxygen vacancy resulting from the promoted hydrogen spillover. Moreover, platinum-oxygen vacancy interfacial sites are identified as the active sites by selectively covering CoOx or platinum by ALD. Our study provides a guide for the understanding of synergistic nature in bicomponent and bifunctional catalysts.

Selective hydrogenation of butyl levulinate to γ-Valerolactone over sulfonated activated carbon-supported SnRuB bifunctional catalyst

2021 ◽  
Author(s):  
Shuai Ding ◽  
Hai-rong Zhang ◽  
Bo Li ◽  
Wenping Xu ◽  
Xuefang Chen ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Selective Hydrogenation ◽  
Bifunctional Catalyst ◽  
Bifunctional Catalysts

The synthesis of γ-Valerolactone (GVL) from butyl levulinate (BL) hydrogenation over sulfonated activated carbon (SAC) supported SnRuB bifunctional catalysts was studied. These catalysts were characterized by ICP, nitrogen physisorption, XRD,...

Selective Hydrogenation of Benzene to Cyclohexene over Ru-Zn Catalyst with Nanosized Zirconia as Dispersant

2010 ◽  
Vol 31 (2) ◽  
pp. 150-152
Author(s):  
Zhongyi LIU ◽  
Haijie SUN ◽  
Dongbin WANG ◽  
Wei GUO ◽  
Xiaoli ZHOU ◽  
...  
Keyword(s):  
Selective Hydrogenation

Selective Hydrogenation of Maleic Anhydride to γ-Butyrolactone over TiOx (x < 2) Surface-Modified Ni/TiO2-SiO2 in Liquid Phase

2014 ◽  
Vol 32 (11) ◽  
pp. 1768-1774
Author(s):  
Yanping YANG ◽  
Yin ZHANG ◽  
Chunguang GAO ◽  
Yongxiang ZHAO
Keyword(s):  
Liquid Phase ◽  
Maleic Anhydride ◽  
Selective Hydrogenation ◽  
Surface Modified

Selective Hydrogenation of Crotonaldehyde over Pt/Ce0.8La0.2O1.9 Catalysts

2011 ◽  
Vol 32 (3) ◽  
pp. 513-519
Author(s):  
Ping CHEN ◽  
Guanqun XIE ◽  
Haiying ZHENG ◽  
Lin ZHU ◽  
Mengfei LUO
Keyword(s):  
Selective Hydrogenation

Effects of Reduction Temperature on Selective Hydrogenation of Crotonalde-hyde over Ir/ZrO2 Catalyst

2013 ◽  
Vol 33 (2) ◽  
pp. 348-353
Author(s):  
Lin ZHU ◽  
Jiqing LU ◽  
Guanqun XIE ◽  
Ping CHEN ◽  
Mengfei LUO
Keyword(s):  
Selective Hydrogenation ◽  
Reduction Temperature

Effects of impregnation solvent and reduction temperature on the catalytic performance of Pd/Al2O3 in the selective hydrogenation of 1,3-butadiene

2011 ◽  
Vol 103 (2) ◽  
pp. 405-417 ◽  
Author(s):  
Kanda Pattamakomsan ◽  
Francisco Jose Cadete Santos Aires ◽  
Kongkiate Suriye ◽  
Joongjai Panpranot
Keyword(s):  
Selective Hydrogenation ◽  
Catalytic Performance ◽  
Reduction Temperature

scholarly journals Special articles on zeolite chemistry and technology. Shape-selective hydrogenation of olefins with a rhodium-zeolite catalyst.

1989 ◽  
pp. 487-492 ◽  
Author(s):  
Takashi JOH ◽  
Izumi YAMAGUCHI ◽  
Shigetoshi TAKAHASHI
Keyword(s):  
Selective Hydrogenation ◽  
Zeolite Catalyst ◽  
Shape Selective

Hydrocarbons from synthesis gas: selectivity changes induced by the zeolite matrix on the metallic function in Rh/Y catalysts

1993 ◽  
Vol 107 (1) ◽  
pp. 59-71 ◽  
Author(s):  
G.J. Siri ◽  
A. Guerrero-Ruiz ◽  
I. Rodriguez-Ramos ◽  
P. Terreros ◽  
J.L.G. Fierro
Keyword(s):  
Synthesis Gas ◽  
Gas Selectivity ◽  
Metallic Function
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