Nanoparticulate Pt on mesoporous SBA-15 doped with extremely low amount of W as a highly selective catalyst for glycerol hydrogenolysis to 1,3-propanediol

Fan, Yiqiu; Cheng, Shijie; Wang, Hao; Ye, Danhong; Xie, Songhai; Pei, Yan; Hu, Huarong; Hua, Weiming; Li, Zhen Hua; Qiao, Minghua; Zong, Baoning

doi:10.1039/c7gc00317j

Cited by 80 publications

(95 citation statements)

References 60 publications

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“…Therefore, the selective hydrogenolysis of glycerol to 1,3‐PDO is highly desirable yet more challenging. Driven by the great potential for practical applications, this reaction has been intensively studied . So far, it has been established that a noble metal in combination with an oxophilic metal oxide, typically like Ir−ReO x, Rh−ReO x and Pt−WO x , is effective for the formation of 1,3‐PDO.…”

Section: Introductionmentioning

confidence: 99%

Effective Hydrogenolysis of Glycerol to 1,3‐Propanediol over Metal‐Acid Concerted Pt/WO_x/Al₂O₃ Catalysts

et al. 2019

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Selective cleavage of secondary C−O bond is an important yet challenging strategy in glycerol valorization, and the product 1,3‐propanediol (1,3‐PDO) is of great value in polyester industry. Herein, we report a series of Pt/WOx/Al2O3 catalysts for selective hydrogenolysis of glycerol in a fixed‐bed reactor and obtain the highest space‐time yield of 1,3‐PDO (191.7*10−3 g1,3‐PDO h−1 g−1cat.) to date. Both Pt and W have substantial effects on the 1,3‐PDO yield with the optimum Pt/W atomic ratio of 1/2∼1/4. Spectroscopy characterizations as well as chemisorption experiments reveal that at the medium domain size of WOx, hydrogen spillover can take place to the greatest extent due to the improved dispersion of Pt and the suitable reducibility of WOx. Dehydration/dehydrogenation tests of 2‐butanol suggest that strong Brønsted acid sites are created via hydrogen dissociation at the Pt−WOx interface and spillover to the neighboring oxygen atom. Such in situ formed protons are critical to the selective cleavage of secondary C−O bonds of polyols.

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Section: Introductionmentioning

confidence: 99%

Effective Hydrogenolysis of Glycerol to 1,3‐Propanediol over Metal‐Acid Concerted Pt/WO_x/Al₂O₃ Catalysts

et al. 2019

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“…Therefore, several catalytic systems were designed and tested under mild hydrothermal conditions, with selectivity values of around 60% associated with low conversions. In the literature, higher yields were found for Pt-WO x supported over Al derivatives, exhibiting values of 66-69% and 62%, reported by Kaneda et al in 2013 [148] and Zong et al in 2017 [168], respectively. Different strategies can be applied to overcome the lack of activity of Pt-W systems at the cost of selectivity, from the incorporation of other elements in the catalyst to external additives such as NaOH to achieve higher conversion rates.…”

Section: Hydrogenolysis and Reduction Processesmentioning

confidence: 81%

Recent Advances in Glycerol Catalytic Valorization: A Review

et al. 2020

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Once a biorefinery is ready to operate, the main processed materials need to be completely evaluated in terms of many different factors, including disposal regulations, technological limitations of installation, the market, and other societal considerations. In biorefinery, glycerol is the main by-product, representing around 10% of biodiesel production. In the last few decades, the large-scale production of biodiesel and glycerol has promoted research on a wide range of strategies in an attempt to valorize this by-product, with its transformation into added value chemicals being the strategy that exhibits the most promising route. Among them, C3 compounds obtained from routes such as hydrogenation, oxidation, esterification, etc. represent an alternative to petroleum-based routes for chemicals such as acrolein, propanediols, or carboxylic acids of interest for the polymer industry. Another widely studied and developed strategy includes processes such as reforming or pyrolysis for energy, clean fuels, and materials such as activated carbon. This review covers recent advances in catalysts used in the most promising strategies considering both chemicals and energy or fuel obtention. Due to the large variety in biorefinery industries, several potential emergent valorization routes are briefly summarized.

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“…Zong and co‐workers reported that the Pt/W‐SBA‐15 catalyst with low W/Si ratios exhibited good performances in the hydrogenolysis of glycerol to 1,3‐PDO, that is, the Pt/W‐SBA‐15 catalyst with the W/Si ratio as low as 1 : 640 gave rise to the highest 1,3‐PDO selectivity of 70.8 % at high glycerol conversion of 86.8 % under 4 MPa H 2 at 423 K for 30 h [44] . With the UV‐Vis diffuse reflectance spectroscopy (DRS) experiment (shown in Figure 1), two new absorbance bands centered at 211 and 267 nm were found in the spectrum of Pt/W‐SBA‐15 catalysts on the basis of the spectrum of Pt/SBA‐15.…”

Section: Tungsten‐containing Bifunctional Catalysts For the Selectivementioning

confidence: 99%

“…UV-Vis DRS spectra of the Pt/W-SBA-15 catalysts with the W/Si atomic ratios of (a) 0, (b) 1 : 1280, (c) 1 : 960, (d) 1 : 640, (e) 1 : 320, (f) 1 : 160, and (g) 1 : 80. Reproduced with permission from Ref [44]…”

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confidence: 99%

Effect of Tungsten Species on Selective Hydrogenolysis of Glycerol to 1,3‐Propanediol

Jiang

Zhu

et al. 2020

ChemSusChem

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Glycerol, as the major byproduct of biodiesel industry, is a cheap and green chemical feedstock. Following the expanded production of biodiesel, the oversupply of glycerol has led to increasing research of the catalytic conversion of glycerol. The selective hydrogenolysis of glycerol is an economical and sustainable way to produce 1,3‐propanediol, which experiences a global growing demand, and valorize glycerol. However, the secondary hydroxy group of glycerol is sterically hindered by two primary hydroxy groups. As a result, 1,2‐propanediol is the preferential product rather than 1,3‐propanediol during conventional hydrogenolysis of glycerol. Currently, tungsten‐containing bifunctional catalysts with metal and Brønsted acid sites are considered as a highly effective and atom‐economical catalytic system for the selective hydrogenolysis of glycerol to 1,3‐propanediol. Therefore, this Minireview summarized various tungsten‐containing bifunctional catalysts for the hydrogenolysis of glycerol in detail and deeply discussed the relationship between tungsten species, metal active sites, and glycerol for selectively producing 1,3‐propanediol.

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Nanoparticulate Pt on mesoporous SBA-15 doped with extremely low amount of W as a highly selective catalyst for glycerol hydrogenolysis to 1,3-propanediol

Abstract: A Pt/W–SBA-15 catalyst with an extremely low W/Si atomic ratio of 1/640 affords 1,3-PDO with high selectivity and yield in the hydrogenolysis of glycerol.

Cited by 80 publications

References 60 publications

Effective Hydrogenolysis of Glycerol to 1,3‐Propanediol over Metal‐Acid Concerted Pt/WO_x/Al₂O₃ Catalysts

Effective Hydrogenolysis of Glycerol to 1,3‐Propanediol over Metal‐Acid Concerted Pt/WO_x/Al₂O₃ Catalysts

Recent Advances in Glycerol Catalytic Valorization: A Review

Effect of Tungsten Species on Selective Hydrogenolysis of Glycerol to 1,3‐Propanediol

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Nanoparticulate Pt on mesoporous SBA-15 doped with extremely low amount of W as a highly selective catalyst for glycerol hydrogenolysis to 1,3-propanediol

Abstract: A Pt/W–SBA-15 catalyst with an extremely low W/Si atomic ratio of 1/640 affords 1,3-PDO with high selectivity and yield in the hydrogenolysis of glycerol.

Cited by 80 publications

References 60 publications

Effective Hydrogenolysis of Glycerol to 1,3‐Propanediol over Metal‐Acid Concerted Pt/WOx/Al2O3 Catalysts

Effective Hydrogenolysis of Glycerol to 1,3‐Propanediol over Metal‐Acid Concerted Pt/WOx/Al2O3 Catalysts

Recent Advances in Glycerol Catalytic Valorization: A Review

Effect of Tungsten Species on Selective Hydrogenolysis of Glycerol to 1,3‐Propanediol

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Effective Hydrogenolysis of Glycerol to 1,3‐Propanediol over Metal‐Acid Concerted Pt/WO_x/Al₂O₃ Catalysts

Effective Hydrogenolysis of Glycerol to 1,3‐Propanediol over Metal‐Acid Concerted Pt/WO_x/Al₂O₃ Catalysts