Abstract: Hydrogenation of γ-valerolactone (GVL) in polar solvents (n-butanol, 1,4-dioxane) to 1,4-pentanediol (PDO) and 2-methyltetrahydrofuran (MTHF) was performed at 363–443 K in a fixed bed reactor under overall H2 pressure of 0.7–1.3 MPa. Preliminary screening in a batch reactior was performed with a series of Ru, Ir, Pt, Co, and Cu catalysts, earlier efficiently applied for levulinic acid hydrogenation to GVL. The fresh catalysts were analyzed by transmission electron microscopy (TEM), X-ray fluorescent analysis (XRF), temperature programmed reduction by H2 (H2-TPR), and N2 physisorption. Cu/SiO2 prepared by reduction of copper hydroxosilicate with chrysocolla mineral structure provided better selectivity of 67% towards PDO at 32% GVL conversion in a continuous flow reactor. This catalyst was applied to study the effect of temperature, hydrogen pressure, and contact time. The main reaction products were PDO, MTHF, and traces of pentanol, while no valeric acid was observed. Activity and selectivity to PDO over Cu/SiO2 did not change over 9 h, indicating a fair resistance of copper to leaching

Cite: Simakova I. , Demidova Y. , Simonov M. , Prikhod’ko S. , Niphadkar P. , Bokade V. , Dhepe P. , Murzin D.Y.
Heterogeneously Catalyzed γ-Valerolactone Hydrogenation into 1,4-Pentanediol in Milder Reaction Conditions
Reactions. 2020. V.1. N2. P.54-71. DOI: 10.3390/reactions1020006 РИНЦ OpenAlex

Files: Full text from publisher

Dates:

Submitted:	Sep 20, 2020
Accepted:	Oct 14, 2020
Published online:	Oct 16, 2020

Identifiers:

Elibrary:	47574629
OpenAlex:	W3093192490

Citing:

DB	Citing
Elibrary	15
OpenAlex	15

Altmetrics: