C-O Hydrogenolysis of C3-C4 Polyols Selectively to Terminal Diols over Pt/W/SBA-15 Catalysts

被引：6

作者：

Bhowmik, Susmita ^{[1
,2
]}

Enjamuri, Nagasuresh ^{[1
]}

Marimuthu, Banu ^{[1
,2
]}

Darbha, Srinivas ^{[1
,2
]}

机构：

[1] CSIR, Natl Chem Lab, Catalysis & Inorgan Chem Div, Dr Homi Bhabha Rd, Pune 411008, Maharashtra, India

[2] Acad Sci & Innovat Res AcSIR, Ghaziabad 201002, Uttar Pradesh, India

来源：

CATALYSTS | 2022年 / 12卷 / 09期

关键词：

erythritol; glycerol; hydrodeoxygenation; diol; Pt; W; SBA-15; ONE-POT SYNTHESIS; GLYCEROL HYDROGENOLYSIS; TUNGSTEN; BIOMASS; 1,4-ANHYDROERYTHRITOL; 1,3-PROPANEDIOL; 1,4-BUTANEDIOL; SPECTROSCOPY; ERYTHRITOL; CONVERSION;

D O I：

10.3390/catal12091070

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Pt/W/SBA-15 catalysts (with Pt-loading = 0.5-4 wt% and W-loading = 1 wt%) prepared by the sequential impregnation method were evaluated for selective C-O cleavage of erythritol and glycerol in an aqueous medium. The Pt and W particles dispersed on SBA-15 approached close proximity at higher Pt loadings and afforded synergistic enhancement in C-O hydrogenolysis activity/selectivity. 1,4-Butanediol yields of 30.9% (at 190 degrees C, 50 bar H-2 and 24 h) and 1,3-propanediol yields of 34.4% (at 190 degrees C, 50 bar H-2 and 12 h of reaction) were obtained over these catalysts. Pt nanoparticles (facilitating dissociative H-2 adsorption and spillover) and W (present as acidic oligomeric WOx species; activating and coordinating the polyol via 1 degrees-OH group) worked in tandem for the selective hydrogenolysis of polyols yielding terminal diols of industrial demand.

引用

页数：15

共 36 条

[21] Bifunctional Catalysts for Upgrading of Biomass-Derived Oxygenates: A Review [J].