Process intensification of the catalytic hydrogenation of squalene using a Pd/CNT catalyst combining nanoparticles and single atoms in a continuous flow reactor
| Autor: | Laurent Vanoye, Boris Guicheret, Camila Rivera-Cárcamo, Ruben Castro Contreras, Claude de Bellefon, Valérie Meille, Philippe Serp, Régis Philippe, Alain Favre-Réguillon |
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| Přispěvatelé: | Catalyse, Polymérisation, Procédés et Matériaux (CP2M), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-École Supérieure de Chimie Physique Électronique de Lyon (CPE)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de chimie de coordination (LCC), Institut de Chimie de Toulouse (ICT), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS), Conservatoire National des Arts et Métiers [CNAM] (CNAM), HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM), 'DEEPER' project / Region Auvergne-Rhône-Alpes (contract number 15 021131 01 – CNR006) - 20th FUI call, ANR-19-CE07-0030,COMET,Catalyse Coopérative Entre Atomes Et Nanoparticules Métalliques(2019) |
| Rok vydání: | 2022 |
| Předmět: |
Squalene
Seamless scale-up [CHIM.GENI]Chemical Sciences/Chemical engineering [CHIM.ORGA]Chemical Sciences/Organic chemistry General Chemical Engineering Structured reactors Environmental Chemistry Catalytic hydrogenation [CHIM.CATA]Chemical Sciences/Catalysis General Chemistry Palladium Carbon nanotube support Industrial and Manufacturing Engineering |
| Zdroj: | Chemical Engineering Journal Chemical Engineering Journal, 2022, 441, pp.135951. ⟨10.1016/j.cej.2022.135951⟩ |
| ISSN: | 1385-8947 |
| DOI: | 10.1016/j.cej.2022.135951 |
| Popis: | International audience; A process intensification study for the full hydrogenation of bio-derived platform molecule squalene (SQE) into squalane (SQA), using commercial heterogeneous Pd catalysts and Pd supported on carbon nanotubes (CNT) is reported. Pd/CNT shows a substantial improvement of the catalytic activity for the total hydrogenation of SQE into SQA thanks to cooperativities between Pd nanoparticles and single atoms simultaneously present on the CNT. However, the stirred reactor's productivity, scalability, and operability are limited by the exothermicity of the reaction (ΔrH = − 765 kJ.mol−1). The implementation of the Pd/CNT catalyst in flow was then studied after coating this catalyst on metallic open cell foams. Using the foam-based milli-reactor's characteristics, including high mass and heat transfer rates and safety, fully reduced SQA (>99 %) was obtained at 180 °C and 30 bar of H2 for a contact time of 1.45 min with a space–time yield of 68 molSQA.molPd−1.min−1. Finally, a scale-up strategy (7 fold) was successfully attempted in a commercially available pilot-scale reactor that meets further seamless scale-up requirements. A production capacity of 2 kg per day using a commercial intensified reactor with a reacting volume of 43.2 mL was obtained under mild conditions (120 °C and 30 bar of H2). |
| Databáze: | OpenAIRE |
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