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Producing triacetylglycerol with glycerol by two steps: Esterification and acetylation

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Abstract.
A two-step method is proposed to obtain high selectivity and high conversion rate for producing additive
triacetylglycerol of biofuel from its byproduct glycerol. The esterification of glycerol with acetic acid was
carried out over resin and zeolites. Amberlyst-35 was found to be an excellent catalyst. The reaction
conditions were optimized by testing catalysts, temperatures, feedstock ratios as well as loads of catalysts.
The optimal conditions are temperature of 105 °C and an acetic acid to glycerol molar ratio of 9:1 with 0.5 g
catalyst. After the 4 hour reaction of the optimal condition, the selectivity of triacetylglycerol reaches almost 100% in 15 min by adding thereto acid anhydride. Recycling experiments indicate that no significant
deactivation of Amerlyst-35 occurred during the reaction.

Keywords: Glycerol, Resins, Esterification, Acetylation, Acetic acid

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Informasi Detail

Judul Seri

Fuel Processing Technology

No. Panggil

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Penerbit

London : Elsevier B.V.., 2009

Deskripsi Fisik

Fuel Processing Technology 90 (2009) 988–993

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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