Produksi Etil Ester Dari Minyak Dedak Padi (Oryza Sativa) Menggunakan Reaktor Ultrasonik

  • Aisyah Aisyah Alauddin State Islamic University of Makassar
    (ID)
  • Riskayanti Riskayanti
  • Iin Novianty
  • Asriyani Ilyas
  • Sjamsiah Sjamsiah
  • Sitti Chadijah

Abstract

Indonesia as the third largest grain producer in the world produces large amounts of bran. High contain Free Fatty Acid (FFA) in rice bran oil causes it can be converted into the fatty acid ethyl esters (biodiesel) by esterification and transesterification methods. The rice bran oil was obtained by rice bran extraction using n-hexane. The esterification process was catalyzed by HCl. In this study, the transesterification process to convert triglycerides into ethyl esters (biodiesel) was conducted by the addition of KOH as a neutralizer and a catalyst

Oil and ethanol by ratio 1:6 using 0,5% KOH  as catalysator were reacted by utilizing 47 kHz ultrasonic wave for 45, 60 and 75 minutes. Biodiesel conversion value obtained were 49,23%; 70,55% and 52,04% respectively. Biodiesel product spectrum was analyzed using FTIR and GCMS instrument. The density, viscosity and flash point is also measured.  FTIR analysis on all variations give similar data spectrum, where the ethyl ester products are characterized by typical bands at specific frequencies such as -C=O; -C-C; -C-H (sp3) and = C-H (sp2) stretch. Based on the data from GCMS spectrum, the product components are ethyl palmitate, ethyl linoleate, ethyl stearate and ethyl oleate. 

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Author Biography

Aisyah Aisyah, Alauddin State Islamic University of Makassar

AISYAH

aisyah@uin-alauddin.ac.id

 EDUCATION BACKGROUND
  • Kimia Universitas Padjadjaran, 1999
  • Kimia FMIPA ITB

PUBLICATION

  • Synthesis of Quinine-n-Oxide, 2011

RESEARCH INTEREST

  • Renewable Energy
  • Natural Chemistry
 

References

Dharsono, Wulandari dan Y. Saptiana Oktari, (2010) Proses Pembuatan Biodiesel dari Dedak dan Metanol dengan Esterifikasi In Situ,Skripsi, Semarang. Jurusan Teknik Kimia Fakultas Teknik Universitas Diponegoro. Retrieved from: http://eprints.undip.ac.id/13067/

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Putri, S.K., Supranto & Sudiyo R. (2012) Studi Proses Pembuatan Biodiesel dari Minyak Kelapa (Coconut Oil) dengan Bantuan Gelombang Ultrasonik, Jurnal Rekayasa Proses, 6(1), 20-25.

Rahmaniah, Orchidea, 2007, The effect of Substrate Types to FAME Conversion on Acid-Catalyzed Transesterification of Crude Rice Bran Oil” IPTEK, The Journal for Technology and Science, 18(3), 71-77.

Sari, Annas Puspita., 2010, Kinetika Reaksi Esterifikasi pada Pembuatan Biodiesel dari Minyak Dedak padi, Skripsi , Semarang. Universitas Diponegoro. Retrieved from: http://eprints.undip.ac.id/3488/

Published
2018-06-24
How to Cite
Aisyah, A., Riskayanti, R., Novianty, I., Ilyas, A., Sjamsiah, S., & Chadijah, S. (2018). Produksi Etil Ester Dari Minyak Dedak Padi (Oryza Sativa) Menggunakan Reaktor Ultrasonik. Al-Kimia, 6(1), 34-45. https://doi.org/10.24252/al-kimia.v6i1.3036
Section
Article
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