Kinetic Study of Hydrogenation of Fatty Acid Methyl Ester into Fatty Alcohol over Rhenium–Niobia and Rhenium–Alumina Catalysts

Fatty alcohols can be generated by hydrogenating fatty acid methyl ester (FAME) using a heterogeneous catalyst. Among diverse alternatives, precious metal-based catalysts such as Re/Nb 2 O 5 and Re/Al 2 O 3 have exhibited superior performance. However, the kinetic study of hydrogenation FAME employi...

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Vydáno v:Arabian journal for science and engineering (2011) Ročník 49; číslo 6; s. 8087 - 8098
Hlavní autoři: Gunawan, Melia L., Rasrendra, Carolus B., Addarojah, Zaqiyah, Suherman, Muhammad F., Perkasa, Sayoga, Kadja, Grandprix T. M.
Médium: Journal Article
Jazyk:angličtina
Vydáno: Berlin/Heidelberg Springer Berlin Heidelberg 01.06.2024
Springer Nature B.V
Témata:
Activation energy
Alcohols
Aluminum oxide
Catalysts
Engineering
Fatty acids
Humanities and Social Sciences
Hydrogenation
multidisciplinary
Niobium oxides
Reactor design
Research Article-Chemical Engineering
Rhenium
Science
Fatty alcohols
Rhenium–niobia
FAME
Kinetics
Hydrogenation
Rhenium–alumina
ISSN:2193-567X, 1319-8025, 2191-4281
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Shrnutí:Fatty alcohols can be generated by hydrogenating fatty acid methyl ester (FAME) using a heterogeneous catalyst. Among diverse alternatives, precious metal-based catalysts such as Re/Nb 2 O 5 and Re/Al 2 O 3 have exhibited superior performance. However, the kinetic study of hydrogenation FAME employing a Rhenium-based catalyst (Re) has not been investigated. Notably, kinetic studies are crucial for performance improvement and reactor design. As a result, the kinetics of the FAME hydrogenation process over these catalysts were studied and modeled comprehensively. The results demonstrate that the reaction with the Re/Nb 2 O 5 catalyst has an order of 0.77 to FAME and 1.48 to hydrogen gas, with an Arrhenius constant of 18.55 bar −1.48 M 0.23  min −1 and an activation energy of 64.44 kJ mol −1 . The Re/Al 2 O 3 catalyst has an order of 0.67 to FAME and 1.15 to hydrogen, with an Arrhenius constant of 1057.89 bar −1.15 M 0.33  min −1 and an activation energy of 78.32 kJ mol −1 . The Re/Al 2 O 3 catalyst is more sensitive to temperature changes than the Re/Nb 2 O 5 catalyst. Meanwhile, the Re/Nb 2 O 5 catalyst is more sensitive to pressure changes than the Re/Al 2 O 3 catalyst.
Bibliografie:ObjectType-Article-1
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ISSN:2193-567X
1319-8025
2191-4281
DOI:10.1007/s13369-024-08725-z