Effects of the carbon support nature and ruthenium content on the performances of Ru/C catalysts in the liquid-phase hydrogenation of benzaldehyde to benzyl alcohol

2015 ◽  
Vol 146 (6) ◽  
pp. 923-930 ◽  
Author(s):  
Roman M. Mironenko ◽  
Olga B. Belskaya ◽  
Vladimir I. Zaikovskii ◽  
Vladimir A. Likholobov
Keyword(s):  
Liquid Phase ◽  
Benzyl Alcohol ◽  
Carbon Support ◽  
Liquid Phase Hydrogenation

scholarly journals Selective Liquid Phase Hydrogenation of Benzaldehyde to Benzyl Alcohol Over Alumina Supported Gold

2019 ◽  
Vol 150 (3) ◽  
pp. 881-887
Author(s):  
Yufen Hao ◽  
Chiara Pischetola ◽  
Fernando Cárdenas-Lizana ◽  
Mark A. Keane
Keyword(s):  
Liquid Phase ◽  
Benzyl Alcohol ◽  
Reaction Conditions ◽  
Liquid Phase Hydrogenation ◽  
Alcohol Water ◽  
Reaction Constant ◽  
Supported Gold ◽  
First Time ◽  
Nucleophilic Mechanism ◽  
By Products

Abstract We report for the first time 100% benzyl alcohol yield from the liquid phase (T = 353 K, P = 9 bar) hydrogenation of benzaldehyde over Au/Al2O3. Under the same reaction conditions, a benchmark Pt/Al2O3 catalyst promoted the formation of toluene and benzene as hydrogenolysis by-products. Reaction kinetics was subjected to a Hammett treatment and the reaction constant (ρ = 0.9) was found to be consistent with a nucleophilic mechanism. A solvent (alcohol, water and alcohol + water) effect is demonstrated and ascribed to competitive adsorption where solvation by polar (water) facilitates benzaldehyde activation. Graphic Abstract

scholarly journals Unraveling Toluene Conversion during the Liquid Phase Hydrogenation of Cyclohexene (in Toluene) with Rh Hybrid Catalysts

Catalysts ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 973 ◽  
Author(s):  
Mónica Rufete-Beneite ◽  
M. Carmen Román-Martínez
Keyword(s):  
Ionic Liquid ◽  
Liquid Phase ◽  
Carbon Materials ◽  
Carbon Support ◽  
Toluene Hydrogenation ◽  
Hydrogen Consumption ◽  
Supported Ionic Liquid ◽  
Cyclohexene Hydrogenation ◽  
Liquid Phase Hydrogenation ◽  
Toluene Conversion

Monitoring hydrogen consumption has allowed studying the progress of the liquid phase hydrogenation of cyclohexene in toluene with Rh SILP (supported ionic liquid phase) catalysts prepared by the immobilization of the [{RhCl(cod)}2] complex on different carbon materials. An excess of hydrogen consumption with respect to the required amount for cyclohexene hydrogenation was registered and related with the solvent (toluene) hydrogenation. The study carried out led to unraveling the extent of toluene hydrogenation and to determining if the rate of this reaction is affected by the properties of the carbon material used as support. The results revealed that the Rh SILP catalysts we prepared showed acceptable toluene conversion, with 100% selectivity to the total hydrogenated product, and that the effect of the carbon support is the same as for cyclohexene hydrogenation.

Liquid-Phase Hydrogenation of Nitrobenzene over Ag-Ni Bimetallic Catalysts Prepared by Adsorption Phase Synthesis

2010 ◽  
Vol 31 (9) ◽  
pp. 1151-1156
Author(s):  
Xin JIANG ◽  
Kezeng DONG ◽  
Haihua WANG ◽  
Ting WANG
Keyword(s):  
Liquid Phase ◽  
Bimetallic Catalysts ◽  
Phase Synthesis ◽  
Adsorption Phase ◽  
Liquid Phase Hydrogenation

Alumina-Supported Palladium–Silver Bimetallic Catalysts with Single-Atom Pd1 Sites in the Liquid-Phase Hydrogenation of Substituted Alkynes

2020 ◽  
Vol 61 (6) ◽  
pp. 869-878
Author(s):  
A. V. Rassolov ◽  
G. O. Bragina ◽  
G. N. Baeva ◽  
I. S. Mashkovsky ◽  
A. Yu. Stakheev
Keyword(s):  
Liquid Phase ◽  
Bimetallic Catalysts ◽  
Single Atom ◽  
Liquid Phase Hydrogenation ◽  
Supported Palladium ◽  
Palladium Silver

Selective liquid phase oxidation of benzyl alcohol catalyzed by carbon nanotubes

2012 ◽  
Vol 204-206 ◽  
pp. 98-106 ◽  
Author(s):  
Jin Luo ◽  
Feng Peng ◽  
Hao Yu ◽  
Hongjuan Wang
Keyword(s):  
Carbon Nanotubes ◽  
Liquid Phase ◽  
Benzyl Alcohol ◽  
Liquid Phase Oxidation ◽  
Oxidation Of Benzyl Alcohol ◽  
Phase Oxidation

Intermetallic Pd1–Zn1 nanoparticles in the selective liquid-phase hydrogenation of substituted alkynes

2017 ◽  
Vol 58 (4) ◽  
pp. 480-491 ◽  
Author(s):  
I. S. Mashkovsky ◽  
P. V. Markov ◽  
G. O. Bragina ◽  
A. V. Rassolov ◽  
G. N. Baeva ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Liquid Phase Hydrogenation

Thermodynamic and kinetic characteristics of liquid phase hydrogenation of substituted nitrobenzenes

2012 ◽  
Vol 86 (6) ◽  
pp. 908-912
Author(s):  
Yu. V. Minenkov ◽  
O. V. Lefedova ◽  
I. V. Smirnova ◽  
M. P. Nemtseva
Keyword(s):  
Liquid Phase ◽  
Kinetic Characteristics ◽  
Liquid Phase Hydrogenation

scholarly journals Liquid Phase Hydrogenation of Nitrobenzene over Nickel Supported on Titania

2012 ◽  
Vol 33 (7-8) ◽  
pp. 1299-1305 ◽  
Author(s):  
K. Joseph Antony RAJ ◽  
M.G. PRAKASH ◽  
R. MAHALAKSHMY ◽  
T. ELANGOVAN ◽  
B. VISWANATHAN
Keyword(s):  
Liquid Phase ◽  
Liquid Phase Hydrogenation
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