Effect of alkali metal promoters on catalytic performance of Co-based catalysts in selective hydrogenation of aniline to cyclohexylamine-Reference-Cited by-同舟云学术

Effect of alkali metal promoters on catalytic performance of Co-based catalysts in selective hydrogenation of aniline to cyclohexylamine

Published:2023-03-01 Issue:1 Volume:25 Page:1-7
ISSN:1899-4741
Container-title:Polish Journal of Chemical Technology
language:en
Short-container-title:

Author:

Valeš Roman¹,Zapletal Martin¹,Krupka Jiří¹

Affiliation:

1. 1 Department of Organic Technology, Faculty of Chemical Technology , University of Chemistry and Technology , Prague, Technická 5, 166 28, Prague 6 , Czech Republic

Abstract

Abstract In this study, a series of Co-based catalysts with alkali metal carbonate promoters were prepared to investigate the interrelation between promotion effect of these carbonates and catalytic performance for aniline hydrogenation to cyclohexylamine in vapour phase. The chemical promoters Li2CO3 and Na2CO3 leading to decrease in catalytic activity of cobalt catalysts for aniline hydrogenation. Catalysts with K2CO3 and Cs2CO3 loadings have practically no catalytic activity for hydrogenation of aniline. Results of TPD of aniline proved that presence of alkali metals carbonates restricts the adsorption of aniline on the surface of cobalt catalysts. Further, it was found that the addition of Na2CO3 greatly enhances the catalytic selectivity towards the cyclohexylamine and inhibits the consecutive reactions of cyclohexylamine leading to formation of by-products such as dicyclohexylamine and N-phenylcyclohexylamine.

Publisher

Walter de Gruyter GmbH

Subject

General Chemical Engineering,General Chemistry,Biotechnology

Link

https://www.sciendo.com/pdf/10.2478/pjct-2023-0001

Reference29 articles.

1. Chaudhari, Ch., Sato, K., Ikeda, Y., Terada, K., Abe, N. & Nagaoka, K. (2021). One-pot synthesis of cyclohexylamine and N-aryl pyrroles via hydrogenation of nitroarenes over the Pd0.5Ru0.5-PVP catalyst. New. J. Chem. 45, 9743–9746. DOI: 10.1039/D1NJ00922B.

2. Araki, S., Nakanishi, K., Tanaka, A. & Kominami, H. (2020). A ruthenium and palladium bimetallic system superior to a rhodium co-catalyst for TiO2-photocatalyzed ring hydrogenation of aniline to cyclohexylamine. J. Catal. 389, 212–217. DOI: 10.1016/j.jcat.2020.05.035.

3. Ásgeirsson, B., Markússon, S., Hlynsdóttir, S.S., Hel-land, R. & Hjörleifsson, J.G. (2020). X-ray crystal structure of Vibrio alkaline phosphatase with the non-competitive inhibitor cyclohexylamine. Biochem. Biophys. Rep. 24, 100830–100840. DOI: 10.1016/j.bbrep.2020.100830.

4. Ranjbar, S., Soltanabadi, A. & Fakhri, Z. (2016). Experimental and Computational Studies of Binary Mixtures of Isobutanol + Cyclohexylamine. J. Chem. Eng. Data. 61(9), 3077–3089. DOI: 10.1021/acs.jced.6b00158.

5. Senthil, K., Elangovan, K., Senthil, A. & Vinitha, G. (2021). Synthesis, growth, optical, mechanical, thermal, dielectric and third order nonlinear optical properties of cyclohexylamine derivative single crystals. Spectrochim. Acta. A: Mol. Biomol. Spectrosc. 247, 119063–119071. DOI: 10.1016/j.saa.2020.119063.

Cited by 1 articles. 订阅此论文施引文献订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献

1. Dehydrogenation of dicyclohexylamine in gaseous phase over a nickel catalyst: effect of reaction parameters;Monatshefte für Chemie - Chemical Monthly;2023-06-17