Hydrogenation of 2-ethyl-2-hexenal to alcohol over nickel-based catalysts: Effects of nickel content and promoter

The catalytic hydrogenation of 2-ethyl-2-hexenal (EPA) on a nickel-based catalyst via 2-ethyl-2-hexanal as an intermediate product is one of the step in manufacturing 2-ethylhexanol (EH). In this study, a nickel-based catalyst was synthesized using peptization and impregnation method. The catalyst&#...

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Bibliographic Details
Published in:	Results in Chemistry Vol. 6; p. 101077
Main Authors:	Gunawan, Melia L., Makertihartha, I.G.B.N., Kurniawan, Iyan W., Japranata, Harry, Culsum, Neng T.U., Sagita, Fuja, Kadja, Grandprix T.M.
Format:	Journal Article
Language:	English
Published:	Elsevier 01-12-2023
Subjects:	2-Ethyl-2-hexenal 2-Ethyl-hexanol Hydrogenation Ni/Alumina catalyst kinetics
Online Access:	Get full text
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Summary:	The catalytic hydrogenation of 2-ethyl-2-hexenal (EPA) on a nickel-based catalyst via 2-ethyl-2-hexanal as an intermediate product is one of the step in manufacturing 2-ethylhexanol (EH). In this study, a nickel-based catalyst was synthesized using peptization and impregnation method. The catalyst's performance was examined utilizing a batch reactor adjusted for nickel loading and promoters. The surface area of the synthesized catalysts was around 61.5 – 235.2 m2/g with 76.4 Å pore size and 0.19 mL/g average pore volume. The catalyst was tested in an isothermal batch reactor at 120 °C and 30 bar. The nickel-based catalyst with 53%-Ni loading had the highest catalytic activity, with 100% EPA conversion and 81% EH selectivity. In addition, copper has been demonstrated to be the most effective catalyst promoter. The thermodynamic and kinetic approaches were also used in this investigation.
ISSN:	2211-7156 2211-7156
DOI:	10.1016/j.rechem.2023.101077