Selective hydrogenation of stearic acid to stearyl alcohol over cobalt alumina catalysts
Publication type: Journal Article
Publication date: 2023-09-01
scimago Q2
wos Q2
SJR: 1.000
CiteScore: 8.6
Impact factor: 4.8
ISSN: 0926860X, 18733875
Catalysis
Process Chemistry and Technology
Abstract
The selective hydrogenation of stearic acid to produce stearyl alcohol at 300°C and 50 bar pressure was studied over a series of cobalt alumina catalysts with different cobalt loadings. Catalysts were prepared by wet impregnation and characterised by X-ray diffraction, H2 temperature programmed reduction, H2 chemisorption, N2 adsorption-desorption and Fourier-transform infrared spectroscopy. Stearyl alcohol was observed to be the main reaction product, although heptadecane, octadecane and stearyl stearate were also produced in lesser amounts. The product selectivity was influenced by the availability of Lewis acid sites on the support which were found to be responsible for ester formation. Increasing the cobalt loading diminished the number of acid sites on the support surface whilst increasing the number of cobalt metal sites and thus enhanced the relative rate of hydrogenation leading to improved selectivity to stearyl alcohol.
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Citations from 2025:
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GOST
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Rahmawati Z. et al. Selective hydrogenation of stearic acid to stearyl alcohol over cobalt alumina catalysts // Applied Catalysis A: General. 2023. Vol. 666. p. 119437.
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Rahmawati Z., Anderson J. A., Mccue A. J. Selective hydrogenation of stearic acid to stearyl alcohol over cobalt alumina catalysts // Applied Catalysis A: General. 2023. Vol. 666. p. 119437.
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TY - JOUR
DO - 10.1016/j.apcata.2023.119437
UR - https://doi.org/10.1016/j.apcata.2023.119437
TI - Selective hydrogenation of stearic acid to stearyl alcohol over cobalt alumina catalysts
T2 - Applied Catalysis A: General
AU - Rahmawati, Zeni
AU - Anderson, J. A.
AU - Mccue, Alan J
PY - 2023
DA - 2023/09/01
PB - Elsevier
SP - 119437
VL - 666
SN - 0926-860X
SN - 1873-3875
ER -
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BibTex (up to 50 authors)
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@article{2023_Rahmawati,
author = {Zeni Rahmawati and J. A. Anderson and Alan J Mccue},
title = {Selective hydrogenation of stearic acid to stearyl alcohol over cobalt alumina catalysts},
journal = {Applied Catalysis A: General},
year = {2023},
volume = {666},
publisher = {Elsevier},
month = {sep},
url = {https://doi.org/10.1016/j.apcata.2023.119437},
pages = {119437},
doi = {10.1016/j.apcata.2023.119437}
}