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Kinetics of linoleic acid hydrogenation on Pd/C catalyst

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Abstract
The hydrogenation of linoleic acid was investigated in semi-batch slurry reactors over 5 wt% palladium
on carbon (Pd/C) catalyst in temperature and H2 pressure ranges of 40–100 8C and 0.5–20 bar using ndecane
as a solvent. The reaction network involves hydrogenation of linoleic acid to monoenoic acid
isomers, predominantly oleic acid, and further hydrogenation of monoenoic acids to stearic acid. The
reaction kinetics was established in conditions free from diffusional limitations. The rate was
temperature and pressure dependent. A reaction network and mechanisms were proposed and
corresponding kinetic equations were derived. The parameters of the mechanistic kinetic models were
determined by using non-linear regression analysis. The concentrations of linoleic acid, monoenoic
acids, and stearic acid were used in parameter estimation. Data fitting allowed discrimination between
rival mechanistic models, more specifically the influence of the hydrogen addition. The kinetic models
described the formation of the products with satisfying accuracy.

Keywords: Palladium catalyst, Hydrogenation, Linoleic acid, Mathematical modeling

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Informasi Detail

Judul Seri

Applied Catalysis A: General

No. Panggil

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Penerbit

London : Elsevier Science Inc.., 2009

Deskripsi Fisik

Applied Catalysis A: General 353 (2009) 166–180

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

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