Catalytic conversion of furfural to furfuryl alcohol over ruthenium based catalysts

Sudiyarmanto, Sudiyarmanto; Aulia, Fauzan; Adzim, Fauzul; Setiyanto, Hendri; Dwiatmoko, Adid Adep

doi:10.1063/1.5064313

Cited by 2 publications

(1 citation statement)

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“…likewise observed poor activity for aqueous phase furfural hydrogenation over Ru NPs on carbon nanotubes and carbon black, albeit under more mild reaction conditions (50 °C, 5 bar H 2 ) and attributed to strong water adsorption . Furfuryl alcohol selectivity is broadly independent of support, and exceeds 85 %, for aqueous phase hydrogenation under mild conditions: 2 wt% Ru NPs over SiO 2 , ZrO 2 , and Al 2 O 3 (under mild conditions of 30 °C and 5 bar H 2 ); 5 wt% Ru NPs over MgO, hydrotalcite, activated carbon, and CaO (at 110 °C and 4 bar H 2 ); 3 wt% Ru NPs dispersed within Zr‐ and Al‐containing MOFs (20 °C and 5 bar H 2 ); 4 wt% Ru over graphene oxides . However, in all cases, such mild operating conditions result in low activity for furfural conversion, for which a weak particle size dependence is postulated over oxide supports .…”

Section: Introductionmentioning

confidence: 94%

Structure‐Reactivity Relations in Ruthenium Catalysed Furfural Hydrogenation

et al. 2019

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Furfural is an abundant and low‐cost bio‐derived platform chemical, obtained by xylose dehydration, and an important precursor to furfuryl alcohol and furan resins. The liquid phase selective hydrogenation of furfural to furfuryl alcohol was systematically investigated over silica supported Ru nanoparticles to elucidate structure‐reactivity relations and obtain mechanistic insight. Furfural hydrogenation to furfuryl alcohol is weakly structure sensitive for Ru nanoparticles spanning 2 to 25 nm, and the dominant reaction pathway reaching 95 % selectivity under our conditions (<25 bar H2 and 100–165 °C). In contrast, furfural decarbonylation to furan exhibits a strong structure sensitivity, being favoured over sub‐10 nm particles. Increasing pH2 from 10 to 25 bar resulted in a modest increase in C=O hydrogenation, while higher temperatures promoted ring‐opening of furfuryl alcohol.

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