Towards Production of γ-valerolactone via Hydrogenation of Aqueous Levulinic Acid

B.T. Huang; S. Leveneur; T. Zamar; J.P. Mikkola; Bechara Taouk

Towards Production of γ-valerolactone via Hydrogenation of Aqueous Levulinic Acid

B.T. Huang ¹ S. Leveneur ¹ T. Zamar ¹ J.P. Mikkola Bechara Taouk ¹

1 LSPC - Laboratoire de Sécurité des Procédés Chimiques

Abstract : Synthesis of GVL (γ-valerolactone) via hydrogenation of aqueous LA (levulinic acid) with H2 over heterogeneous catalyst (Ru/C) was investigated. In the first part, a study of the influence of various operating conditions was conducted including that of temperature (90–180°C), stirring rate (500–1200 rpm), catalyst loading (0.1–2.0 g), hydrogen pressure (0.4–2.8 MPa) and initial LA concentration (0.5–2 M). In the second part, influence of supercritical CO2 (scCO2) on hydrogenation rate and GVL yield were investigated. Hydrogenation of aqueous LA under scCO2 and under N2 atmosphere was carried out in batch reactor at 150°C and was compared with the case when no additional gases were present. The result indicated that the use of scCO2 had no beneficial effect neither in terms of LA conversion nor hydrogenation rate when the amount of hydrogen was relatively low compared to the stoichiometry. This effect was mitigated when more hydrogen was present.

Keywords : γ-valerolactone hydrogenation levulinic acid ruthenium supercritical CO2 biomass valorization green chemistry

Type de document :

Article dans une revue

Domaine :

Sciences de l'ingénieur [physics] / Génie des procédés

Liste complète des métadonnées

https://hal-normandie-univ.archives-ouvertes.fr/hal-02138607
Contributeur : Bechara Taouk <>
Soumis le : jeudi 23 mai 2019 - 22:25:55
Dernière modification le : jeudi 14 novembre 2019 - 10:06:58

Towards Production of γ-valerolactone via Hydrogenation of Aqueous Levulinic Acid

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