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Vol. 30 No. 5 (2018): Vol 30 Issue 5, 2018

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Transesterification of Waste Cooking Oil Using NH2/MCM-41 Base Catalyst: Effect of Methanol/Oil Mole Ratio and Catalyst/Oil Weight Ratio towards Conversion of Ester

https://doi.org/10.14233/ajchem.2018.20979%20
Triyono
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281, Indonesia
Wega Trisunaryanti
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281, Indonesia
Adriana Dwi Putri
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281, Indonesia
Ayyik Lutfiana
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281, Indonesia
Kumala Dewi
Faculty of Biology, Universitas Gadjah Mada, Jl. Teknika Selatan, Yogyakarta 55281, Indonesia

Corresponding Author(s) : Wega Trisunaryanti

wegats@ugm.ac.id

Asian Journal of Chemistry, Vol. 30 No. 5 (2018): Vol 30 Issue 5, 2018

Abstract

Transesterification of waste cooking oil (WCO) using NH2/MCM-41 base catalyst has been carried out. The MCM-41 was synthesized by hydrothermal method using the silica from Sidoarjo mud and cetyltrimethylammonium bromide (CTAB) as a template and calcined at 540 °C for 5 h. The MCM-41 was modified by adding (3-aminopropyl) trimethoxysilane using 5 mol percent of N/Si to produce NH2/MCM-41 base catalyst. Transesterification of waste cooking oil was carried out under variation of methanol/WCO mole ratio of 6, 9, 12, 15 and 18 using 10 wt. % of catalyst towards oil and weight ratio of catalyst/WCO of 2, 4, 6, 8, 10 wt. % using methanol/waste cooking oil mole ratio of 15. The result showed that the purity of silica from Sidoarjo mud was 93.40 wt. %. The highest product of methyl ester was 49.98 wt. % obtained using 4 wt. % of catalyst/WCO weight ratio in methanol/oil mole ratio of 15.

Keywords

Sidoarjo mud Base catalyst Transesterification Waste cooking oil
Triyono, ., Trisunaryanti, W., Putri, A. D., Lutfiana, A., & Dewi, K. (2018). Transesterification of Waste Cooking Oil Using NH2/MCM-41 Base Catalyst: Effect of Methanol/Oil Mole Ratio and Catalyst/Oil Weight Ratio towards Conversion of Ester. Asian Journal of Chemistry, 30(5), 953–957. https://doi.org/10.14233/ajchem.2018.20979
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