POTENSI KATALIS PADAT ASAM GAMMA ALUMINA TERSULFATASI PADA REAKSI ESTERIFIKASI MINYAK BIJI KARET

*Maria Ulfah -  Jurusan Teknik Kimia-FTI, Universitas Bung Hatta-Padang Jl. Gajahmada No. 19, Gunung Pangilun-Padang, Indonesia
S Subagjo -  Departemen Teknik Kimia- Institut Teknologi Bandung Jln. Ganeca 10, Bandung
Received: 13 Oct 2016; Published: 16 Dec 2016.
Open Access Copyright (c) 2017 REAKTOR

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Section: Research Article
Language: EN;IND
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In Volume 16 No.3 September 2016
Statistics: 959 2067
Abstract

POTENTIAL OF SULFATET ALUMINA-HETEROGENEOUS ACID CATALYST IN ESTERIFICATION RUBBER SEED OIL.  Two tipe of  catalysts have been synthesed and evaluated ( free fatty acid conversion) in esterification of rubber seed oil. The first and the second catalyst have content SO3 8,821 % and 40,715 %, respectly. The optimum condition of reaction studied : volume ratio methanol/oil  0,9-1,8 v/v;  catalyst concentration 1,67-10 % wt/v; time of reaction 1-7 hours and temperature of reaction 50-70 oC. This study  showed, the second catalyst  more active than the first catalyst. Maximum conversion from esterification reaction of rubber seed oil of the first and the second catalyst are 75 % and  97 %, respectly. The optimum condition of reaction achieved at volume ratio methanol/oil  1,8 v/v;  catalyst concentration 1,67 % wt/v; time of reaction 7 hours and temperature of reaction 70 oC.

 

  Keywords: sulfated alumina, free fatty acid, eterification, rubber seed oil.

Abstrak

Dua tipe katalis alumina tersulfatasi telah disintesis dan dievaluasi kinerjanya (berupa konversi Asam Lemak Bebas, ALB) pada reaksi esterifikasi asam lemak bebas minyak biji karet. Katalis tipe 1 dan tipe 2 berturut-turut memiliki kandungan SO3 8,821 % dan 40,715 %.  Kondisi optimasi reaksi yang dipelajari: rasio volume metanol/minyak 0,9-1,8 v/v; konsentrasi katalis 1,67-10 % b/v; waktu reaksi 1-7 jam dan temperatur reaksi 50-70 oC.  Hasil penelitian menunjukkan katalis tipe 2 lebih aktif dari tipe 1. Konversi ALB maksimum  dari reaksi esterifikasi minyak biji karet  dengan katalis tipe 1 dan tipe 2  berturut-turut 75 % dan 97 %.  Kondisi  optimum reaksi tersebut dicapai pada rasio volume metanol/minyak 1,8; konsentrasi katalis/minyak 1,67 % b/v; lama reaksi 7 jam dan temperatur reaksi 70 oC.

 

Kata kunci: alumina tersulfatasi, asam lemak bebas, esterifikasi, minyak biji karet

Keywords
alumina tersulfatasi, asam lemak bebas, esterifikasi, minyak biji karet

Article Metrics:

  1. Alvarez, M., Ortiz, M. J., Ropero, J.L., Nini, M.E., Rayon, R., Tzompantzi, F., and Gomez, R., (2009),” Evaluation of sulfated alumina synthesized via the sol-gel method in the esterification of oleic acid with ethanol,” Chem. Eng. Comn, 196, pp. 1152-1162.
  2. Atabani, A.E., Silitonga, A.S., Ong, H.C., Mahlia, T.M.I., Masjuki H.H, Badruddin, I.A and, Fayaz, H., (2013),” Non-dible vegetable oils: A critical evaluation of oil extraction, fatty acid compositions, biodiesel production, characteristics, engine performance and emmissions production,” Renewable and Sustainable Energy Reviews, 18, pp. 211-245.
  3. Hui, H.T., Viet, T.T., and Phung, L.T.K. (2014),” Biodiesel production from rubber seed pil using SCM,” International Journal of Renewable Energy and Enviromental Engineering, vol. 02, No. 04, October, pp. 306-314.
  4. Ilgen, O., Akin, A.N., Boz, N., (2009),” Investigation of biodiesel production from canola oil using amberlyst-26 as a catalyst,” Tuk. J. Chem. 33, pp.289-294.
  5. Lotero, E., Liu, Y., Lopez, D.E., Suwannakarn, K., Bruce, D.A., and. Goodwin, J.G. Jr. (2005),” Synthesis of biodiesel via acid catalysis,” Ind. Eng. Chem. Res, 44, pp. 5353-5363.
  6. Pandey, A, Handbook of Plant-Based. Biofuels, CRC Press, Boca Raton, FL., 2008.
  7. Ramadhas, A.S., Jayaraj, S., and Muraleedharan, C., (2005),” Biodiesel production from high FFA rubber seed oil, Fuel 84, pp. 335-340.
  8. Rane, A.S., Pudi, S.M., and Biswas, P., (2016),” Esterification of Glyscerol with acetic acid with highly active and stable alumina-based catalyst: A reaction kinetics study,” Chem. Biochem. Eng. 30(1), pp. 33-45.
  9. Ulfah, M., dan Subagjo (2013),” Hidrodesulfurisasi Dibenzothiophene (HDS DBT) dengan Katalis NiMo/γ-Al2O3 : Sintesa Penyangga Alumina”, Jurnal Reaktor Vol. 16 No. 3, Oktober, hal. 151-157.
  10. Viera, S.S., Magriotis, Z.M., Santos, N.A.V., Saczk, A.A., (2013),” Biodiesel production by free fatty acid esterification using lanthanum and HZSM-5 based calaysts,” Bioresource Technology 133 , pp. 248-255.
  11. Widayat, Wibowo, A. D. K., Hadiyanto (2012),” Study On Production Process of Biodiesel from Rubber Seed (Hevea Brasiliensis) by In Situ Transesterification Method with Alkaline Catalyzed,” in Proceeding of International Conference on Chemical and Material Engineering.

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