EFFECT OF TEMPERATURE AND SPEED OF STIRRER TO BIODIESEL CONVERSION FROM COCONUT OIL WITH THE USE OF PALM EMPTY FRUIT BUNCHES AS A HETEROGENEOUS CATALYST

Luthfi Pratama; Yoeswono Yoeswono; Triyono Triyono; Iqmal Tahir

doi:10.22146/ijc.21562

EFFECT OF TEMPERATURE AND SPEED OF STIRRER TO BIODIESEL CONVERSION FROM COCONUT OIL WITH THE USE OF PALM EMPTY FRUIT BUNCHES AS A HETEROGENEOUS CATALYST

https://doi.org/10.22146/ijc.21562

Luthfi Pratama^(1*), Yoeswono Yoeswono⁽²⁾, Triyono Triyono⁽³⁾, Iqmal Tahir⁽⁴⁾

(1) Physical Chemistry Laboratory, Chemistry Department, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281
(2) Centre of Education and Training of Oil and Gas, Cepu, Jl. Sorogo No. 1, Cepu, Jawa Tengah
(3) Physical Chemistry Laboratory, Chemistry Department, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281
(4) Physical Chemistry Laboratory, Chemistry Department, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281
(*) Corresponding Author

Abstract

Biodiesel synthesis by transesterification reaction of coconut oil with methanol by using ash of palm empty fruit bunches (EFB) as base catalyst has been conducted. Sample of ash was prepared through heating, screening, reashing, and finally determining of potassium content. Sample of coconut oil was analyzed by GC-MS. A certain amount of ash was extracted in methanol with mixing for about 1 h at room temperature and a result was used for reaction of transesterification. The studied variables were effect of temperature and speed of stirrer. The composition of the methyl esters (biodiesel) was analyzed using GC-MS and ¹H NMR, whereas characters of biodiesel were analyzed using ASTM methods. The results showed that potassium content in ash of EFB could be extracted by methanol and it could be used as base catalyst in the biodiesel synthesis. The value increasing of both variables enhanced the biodiesel conversion. The properties of biodiesel were relatively conformed to specification of biodiesel.

Keywords

biodiesel; coconut oil; base catalyst; temperature; stirring

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References

[1] Haites, E., 2000, The Revelance and Potential Impact of Kyoto Protocol Mechanisms for The Canadian Agriculture and Agri-Food Sector, Economic and Policy Analysis Directorate, Policy Branch, Agriculture and Agri-Food Canada, Ontario.

[2] Sayles, S. and Ohmes, R., 2005, Hydrocarbon Process., 2, 84, 39-43.

[3] Srivastava, A. and Prasad, R., 2000, Renewable Sustainable Energy Rev., 4, 111-133.

[4] Knothe, G., Dunn, R.O., and Bagby, M.O., 1997, Biodiesel: The Use of Vegetable Oils and Their Derivatives as Alternative Diesel Fuels, Fuels and Chemicals from Biomass, ACS Symposium Series, V, 666.

[5] Kittikun, A.H., Prasertsan, P., Srisuwan, G., and Krause, A., 2000, Environmental Management for Palm Oil Mill, AEON Found., Japan.

[6] Darnoko, P., Guritno, A., Sugiharto and Sugesty, S., 1995, Jurnal Penelitian Kelapa Sawit, 75-87.

[7] Yoeswono, Tahir, I., and Triyono, 2007, The Use of Ash of Palm Empty Fruit Bunches as a Source of Base Catalyst for Synthesis of Biodiesel from Palm Kernel Oil, Proc. of the 1^st International Conference on Chemical Sciences, Yogyakarta.

[8] Sibarani, J., 2006, Pemanfaatan Abu Tandan Kosong Sawit Sebagai Sumber Katalis Basa (K₂CO₃) pada Pembuatan Biodiesel Minyak Kelapa dalam Media Metanol, Skripsi, Jurusan Kimia FMIPA UGM, Yogyakarta.

[9] Ma, F. and Hanna, M.A., 1999, Bioresour. Technol., 70, 1-15.

[10] May, C.Y., 2004, J. Oil Palm Res., 16, 2, 1-11.

[11] Knothe, G., 2005, ¹H-NMR Spectroscopy of Fatty Acids and Their Derivatives-Saturated Fatty Acids and Methyl Esters, http://www.lipidlibrary.co.uk, 2 Mei 2006.

[12] ASTM, 2006, Annual Book of ASTM Standards, 5, 05.01, ASTM International, West Conshohocken.

[13] Salétes, S., Caliman, J.P., and Raham, D., 2004, Study of Mineral Nutrient Losses from Oil Palm Empty Fruit Bunches During Temporary Storage, J. Oil Palm Res., 16, 1, 11-12.

DOI: https://doi.org/10.22146/ijc.21562