2017
DOI: 10.1007/s11144-017-1154-6
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Hydrogenolysis of glycerol to propylene glycol over Cu/oxide catalysts: influence of the support and reaction conditions

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Cited by 15 publications
(17 citation statements)
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“…A tuneable acidity can be generated through support synthesis methodologies that induce oxygen vacancies in the material, and these have been studied in different works concerning the influence of the support in the reaction [114]. Among them, materials such as carbon [115][116][117], metal oxides [118][119][120][121][122][123][124][125], zeolites [116,[126][127][128][129][130][131], and mixed oxides [120,[132][133][134][135] that exhibited high acidity were applied, in order to benefit the dehydration step [120,128,136]. In these cases, selectivity to 1,2-PDO can be explained if glycerol adsorption over support acid sites controlled by a steric effect is considered.…”
Section: Hydrogenolysis and Reduction Processesmentioning
confidence: 99%
“…A tuneable acidity can be generated through support synthesis methodologies that induce oxygen vacancies in the material, and these have been studied in different works concerning the influence of the support in the reaction [114]. Among them, materials such as carbon [115][116][117], metal oxides [118][119][120][121][122][123][124][125], zeolites [116,[126][127][128][129][130][131], and mixed oxides [120,[132][133][134][135] that exhibited high acidity were applied, in order to benefit the dehydration step [120,128,136]. In these cases, selectivity to 1,2-PDO can be explained if glycerol adsorption over support acid sites controlled by a steric effect is considered.…”
Section: Hydrogenolysis and Reduction Processesmentioning
confidence: 99%
“…There is thus an increasing surplus of glycerol, creating a need to develop alternative ways to use residual glycerol. 2 Due to its high functionalization, glycerol can be transformed into several value-added products ( Table 1), such as lactic acid, [3][4][5] glyceric acid, 6-8 glycolic acid, [9][10][11] oxalic acid, 9,12 dihydroxyacetone, [13][14][15] glyceraldehyde, [16][17][18] 1,2-propanediol, [19][20][21] 1,3-propanediol, 22-24 1-propanol, 25,26 acrylic acid, [27][28][29] acrolein, [30][31][32] syngas, [33][34][35] mono-, di-, tri-glycerides, [36][37][38] triacetin, [39][40][41] glycerol oligomers, 42,43 and polymers. 44 Lactic acid is conventionally used as an acidulant and preservative in the food industry, in the chemical industry 45,46 as raw material for the production of pharmaceuticals, 47 cosmetics, 48 textiles, 49 leather,…”
Section: Reactionmentioning
confidence: 99%
“…Due to its high functionalization, glycerol can be transformed into several value‐added products (Table ), such as lactic acid, glyceric acid, glycolic acid, oxalic acid, dihydroxyacetone, glyceraldehyde, 1,2‐propanediol, 1,3‐propanediol, 1‐propanol, acrylic acid, acrolein, syngas, mono‐, di‐, tri‐glycerides, triacetin, glycerol oligomers, and polymers . Lactic acid is conventionally used as an acidulant and preservative in the food industry, in the chemical industry as raw material for the production of pharmaceuticals, cosmetics, textiles, leather, and, in a fast‐growing niche market, as monomer for the biodegradable polymer poly‐(lactic acid) or PLA .…”
Section: Introductionmentioning
confidence: 99%
“…No obstante, esto, se han utilizado métodos de coprecipitación [66,[181][182][183], deposición-precipitación [184][185][186] e intercambio iónico [174,187]. En el estudio de catalizadores de Cu, se han empleado soportes basados en óxidos tales como γ-Al2O3 [168,171,173,177,180,188,189], SiO2 [66,90,184,190,191], ZnO [50,62,183], TiO2 [177,192], MgO [185] y Cr2O3 [80], zeolitas del tipo Y [182] y HZSM-5 [193], sílices mesoporosas (HSM) [175], SBA-15 [176] e hidrotalcitas [181,193].…”
Section: Cobreunclassified
“…Por otro lado, cuando la acidez del soporte es elevada, como en el caso de la zeolita HZSM-5 [193], la selectividad a 1,2-PG disminuye debido a la deshidratación de glicerol a acroleína. En otros casos, el tipo de sitios ácidos no favorece la formación de 1,2-PG, como es el caso del TiO2 [177,192], en donde el producto principal es 1-propanol (1-POH).…”
Section: Cobreunclassified