Pd‐Pt Bimetallic Catalysts for Enhanced Low‐Temperature Hydrodeoxygenation of Vanillin

Author:

Govoni Simone12,Ventimiglia Alessia1,Ferraz Camila P.3ORCID,Itabaiana Ivaldo4,Dufour Anthony5ORCID,Pasc Andreea2ORCID,Wojcieszak Robert26ORCID,Dimitratos Nikolaos17ORCID

Affiliation:

1. Dipartimento di Chimica Industriale “Toso Montanari” Alma Mater Studiorum Institution: Università di Bologna Viale Risorgimento 4 40136 Bologna Italy

2. Laboratoire Lorraine de Chimie Moléculaire – L2CM UMR 7053 Université de Lorraine and CNRS 54500 Vandœuvre-lès-Nancy France

3. Instituto de Química Federal University of Rio de Janeiro Rio de Janeiro Brazil

4. Department of Biochemical Engineering School of Chemistry Federal University of Rio de Janeiro Av. Athos da Silveira Ramos, 149 – Cidade Universitária 21941910 Rio de Janeiro Brazil

5. Laboratoire Réactions et Génie des Procédés – LRGP UMR 7274 Université de Lorraine and CNRS 1 Rue Grandville 54000 Nancy France

6. Unité de Catalyse et Chimie du Solide – UCCS UMR 8181 Univ. Lille, CNRS, Centrale Lille, Univ. Artois Cité Scientifique, Bâtiment C3 59652 Villeneuve d'Ascq France

7. Center for Chemical Catalysis-C3 Alma Mater Studiorum Università di Bologna Viale Risorgimento 4 40136 Bologna Italy

Abstract

AbstractTo make pyrolytic bio‐oil useful as a transportation fuel, the oxygen content must be reduced, and this can be carried out by using catalytic hydrodeoxygenation (HDO) reaction. The greatest challenge is associated with the removal of strongly bound oxygenated groups without saturating the aromatic ring while preserving the number of carbons. However, the development of a stable catalyst that can selectively remove such oxygenated groups with low hydrogen consumption is still challenging. In this context, a systematic study on HDO of vanillin on bimetallic Pd−Pt catalysts was carried out. It aims to study the effect of bimetallic synergy in terms of activity and selectivity to creosol. Metallic nanoparticles of Pd and Pt were synthesized by sol immobilization technique and deposited on TiO2. The conversion of vanillin was correlated to the Pd−Pt atomic ratio, while the production of the creosol was correlated to the Pd(0)/(Pd+Pt) ratio at the surface. Full conversion of vanillin was obtained at low reaction temperature (20 °C) achieving nearly 100 % selectivity to creosol. These results represent a step forward in advancing the development of more efficient and sustainable processes for bio‐oil upgrading.

Publisher

Wiley

Reference42 articles.

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