Synthesis of Solid Acid Catalyst from Fly Ash for Eugenol Esterification

*Nur Hidayati -  Chemical Engineering Department, Universitas Muhammadiyah Surakarta , Jl. A. Yani Tromol Pos, Pabelan, Kartasura, Surakarta 57102, Indonesia
Titik Pujiati -  Chemical Engineering Department, Universitas Muhammadiyah Surakarta , Jl. A. Yani Tromol Pos, Pabelan, Kartasura, Surakarta 57102, Indonesia
Elfrida B. Prihandini -  Chemical Engineering Department, Universitas Muhammadiyah Surakarta , Jl. A. Yani Tromol Pos, Pabelan, Kartasura, Surakarta 57102, Indonesia
Herry Purnama -  Chemical Engineering Department, Universitas Muhammadiyah Surakarta , Jl. A. Yani Tromol Pos, Pabelan, Kartasura, Surakarta 57102, Indonesia
Received: 25 Jan 2019; Revised: 12 May 2019; Accepted: 20 May 2019; Published: 1 Dec 2019; Available online: 1 Jul 2019.
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Section: The 3rd International Conference on Chemical and Material Engineering 2018 (ICCME 2018)
Language: EN
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Abstract

A series of fly ash-based heterogeneous acid catalysts were prepared by chemical and thermal treatment. Fly ash was chemically activated using sulfuric acid and followed by thermal activation. Characterization methods of XRD, BET, SEM-EDX, and the performance in esterification of eugenyl acetate production was carried out to reveal the physical and chemical characteristics of prepared catalysts. Activated catalyst showed high silica content (96.5%) and possessed high BET surface area of 70 m2g-1. The catalyst was proven to be highly active solid acid catalyst for liquid phase esterification of eugenol with acetic acid yielding eugenyl acetate. A yield of 43-48% was obtained with activated fly ash catalysts for 90 minutes reaction. These catalysts may replace beneficially the conventional homogenous liquid acid to the eco-friendly heterogeneous one.

 

Keywords
fly ash; solid acid catalyst; esterification; eugenyl acetate

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