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Modeling of kinetics and stereoselectivity in liquid-phase a-pinene hydrogenation over Pd/C

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Abstract.
The hydrogenation of a-pinene was investigated in a batch reactor over 4 wt% palladium on carbon (Pd/
C) catalyst in temperature range of 50–90 8C and 2–11 bar of hydrogen pressure using n-octane as a
solvent. The reaction network involves hydrogenation of a-pinene to two stereoisomers. The reaction
kinetics was established in conditions free from diffusional limitations. The rate was temperature,
pressure and reactant concentration dependent. Stereoselectivity was independent on conversion, but
was sensitive to temperature and hydrogen pressure. 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 kinetic models described the
formation of the products with satisfying accuracy.

Keywords: Pinene, Hydrogenation, Kinetics, Modeling, Pd/C.

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Informasi Detail

Judul Seri

Applied Catalysis A: General

No. Panggil

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Penerbit

London : Elsevier B.V.., 2009

Deskripsi Fisik

Applied Catalysis A: General 356 (2009) 216–224

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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