Hydrogenolysis of glycerol to 1,2-propanediol on copper core-porous silica shell-nanoparticles

Non-Crystalline Copper Oxide Highly Dispersed on Mesoporous Alumina: Synthesis, Characterization and Catalytic Activity in Glycerol Conversion to Acetol

“…The glycerol dehydration proceeds through the formation of Cu-alkoxide species followed by hydrogen abstraction from the secondary hydroxyl groups. [8][9][10] The alkoxide generated from glycerol may release an OH radical from the primary OH groups to produce acetol. However, copper-alkoxide species may also be produced by interaction with primary hydroxyl groups from glycerol to generate acetol.…”

“…However, copper-alkoxide species may also be produced by interaction with primary hydroxyl groups from glycerol to generate acetol. [8][9][10][11] On the other hand, the control of surface acid-base character of support for the copper based-catalysts plays an important role during the glycerol conversion to acetol. 5,[8][9][10][11] The most important disadvantage to the gas-phase transformation of glycerol to acetol, mainly on acid catalysts, is the deactivation due to extensive coke deposition on the catalyst surface, as well as the sintering process.…”

“…[8][9][10][11] On the other hand, the control of surface acid-base character of support for the copper based-catalysts plays an important role during the glycerol conversion to acetol. 5,[8][9][10][11] The most important disadvantage to the gas-phase transformation of glycerol to acetol, mainly on acid catalysts, is the deactivation due to extensive coke deposition on the catalyst surface, as well as the sintering process. 8,12 Therefore, the development of a catalyst resistant to deactivation by coke and the sample sintering during the conversion of glycerol to acetol in gas phase is one of the most interesting research challenges.…”

Experimental and modelling approach to the catalytic coproduction of glycerol carbonate and ethylene glycol as a means to valorise glycerol

“…The chemical features of glycerol have made it subject to very diverse transformations to obtain many interesting products, which have been accounted for in a significant number of thorough reviews [2,3] . Some examples of the synthetic pathways followed to valorise glycerol include esterification of different organic acids [4,5] , hydrogenolysis to 1,2-propanediol [6] or dehydration reactions [7] .…”

Theoretical and experimental evaluation of mass transfer limitation in gas phase dehydration of glycerol to acrolein over supported HSiW catalyst

“…However, the importance of bio-based materials prevails today due to various environmental concerns and depletion of fossil fuel reservoirs in the near future [5][6][7][8]. There are many reports about bio-based glycerol dehydration to acrolein [9][10][11] and other value-added chemicals [12][13][14] over various homogeneous or heterogeneous acid catalysts. In heterogeneous catalytic system, full utilization of catalyst surface depends on the mass transfer limitations inside the pore structure in the pellets [15].…”