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Solvent-free semihydrogenation of acetylene alcohols in a capillary reactor coated with a Pd-Bi/TiO2 catalyst

Cherkasov, Nikolay; Ibhadon, Alex O.; Rebrov, Evgeny V.

Authors

Nikolay Cherkasov

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Dr Alex Ibhadon A.O.Ibhadon@hull.ac.uk
Reader in Catalysis and Reactor Engineering

Evgeny V. Rebrov



Abstract

© 2016 Elsevier B.V. All rights reserved. A solvent-free semihydrogenation of 2-methyl-3-butyn-2-ol (MBY) to 2-methyl-3-buten-2-ol was performed in a capillary reactor (10 m long, 0.53 mm i.d.) coated with a titania supported Pd-Bi catalyst. Several coatings with different Pd/Bi ratio have been prepared. The catalysts have been characterized with SEM, TEM, EDX, XRD analysis and N 2 adsorption-desorption measurements. The maximum alkene yield of 90% was obtained at a molar Pd/Bi ratio of 11. The yield was increased to 95% in the presence of 10 mol.% pyridine in the reaction mixture. The alkene selectivity decreased with time due to leaching of Bi. The leaching was fully suppressed in the presence of 1 vol.% acetic acid in the reaction mixture. The catalyst remained stable for 100 h of continuous operation. The results demonstrate that capillary reactors provide alkene selectivity the same compared to ideal stirred tank batch reactors.

Journal Article Type Article
Publication Date Apr 10, 2016
Journal Applied catalysis A : general
Print ISSN 0926-860X
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 515
Pages 108-115
Institution Citation Cherkasov, N., Ibhadon, A. O., & Rebrov, E. V. (2016). Solvent-free semihydrogenation of acetylene alcohols in a capillary reactor coated with a Pd-Bi/TiO2 catalyst. Applied catalysis. A, General, 515, 108-115. https://doi.org/10.1016/j.apcata.2016.01.019
DOI https://doi.org/10.1016/j.apcata.2016.01.019
Keywords Semihydrogenation; Acetylene; Pd; Solvent-free
Publisher URL http://www.sciencedirect.com/science/article/pii/S0926860X16300199
Additional Information This article is maintained by: Elsevier; Article Title: Solvent-free semihydrogenation of acetylene alcohols in a capillary reactor coated with a Pd–Bi/TiO2 catalyst; Journal Title: Applied Catalysis A: General; CrossRef DOI link to publisher maintained version: http://dx.doi.org/10.1016/j.apcata.2016.01.019; Content Type: article; Copyright: Copyright © 2016 Elsevier B.V. All rights reserved.

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