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.
Dr Alex Ibhadon A.O.Ibhadon@hull.ac.uk
Reader in Catalysis and Reactor Engineering
Evgeny V. Rebrov
© 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|
|Peer Reviewed||Peer Reviewed|
|APA6 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|
|Keywords||Semihydrogenation; Acetylene; Pd; Solvent-free|
|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.|