Abstract: Ru supported on mesoporous carbon Sibunit and microporous zeolites (HZSM-5, SiO2/Al2O3 = 250; H-Beta, SiO2/Al2O3 = 30; H-Y, SiO2/Al2O3 = 5; H-USY, SiO2/Al2O3 = 30) synthesized by the sol-gel method (CSIR-National Chemical Laboratory, Pune India) were prepared by impregnation of the corresponding supports with RuCl3∙nH2O (0.1M) followed by reduction in H2. Catalyst screening in levulinic acid (LA) (15 mL, 6.9 mmol) hydrogenation into -valerolactone (GVL) with 1,4-dioxane (165ºC, hydrogen pressure ca. 16 bar) as a solvent showed higher activity and selectivity to GVL of Ru/zeolites compared to carbon supported catalysts. Among Ru/zeolites LA conversion increased as follows Ru/HZSM-5 < Ru/H-Y < Ru/H-USY < Ru/H-Beta demonstrating a clear advantage of H-Beta preparation method. Optimization of the support microstructure and acidity opens a reliable way for selective catalytic LA hydrogenation to GVL. The catalysts were analyzed by TEM, XRD, H2-TPR and N2 physisorption to compare their physical chemical properties.

Cite: Simakova I.L. , Demidova Y.S. , Simonov M.N. , Niphadkar P.S. , Bokade V.V. , Devi N. , Dhepe P.L. , Murzin D.Y.
Mesoporous Carbon and Microporous Zeolite Supported Ru Catalysts for Selective Levulinic Acid Hydrogenation into γ-valerolactone
Catalysis for Sustainable Energy. 2019. V.6. N1. P.38-49. DOI: 10.1515/cse-2019-0004 РИНЦ AN OpenAlex

Files: Full text from publisher

Dates:

Submitted:	Jul 2, 2019
Accepted:	Jul 3, 2019
Published online:	Nov 11, 2019
Published print:	Nov 13, 2019

Identifiers:

Elibrary:	44627287
Chemical Abstracts:	2020:1113434
OpenAlex:	W2987390417

Citing:

DB	Citing
Elibrary	10
OpenAlex	11

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