Sintesis Dan Karakterisasi H-Aluminosilikat Sebagai Katalis Sintesis Biogasoline Dari Asam Oleat
Downloads
ABSTRACT
Aluminosilicate can be used for cracking reaction. In this study, catalyst of H-aluminosilicate has been synthesized by hydrothermal method with ratio molar Si/Al is 20. The characterizations has been performed by XRD, FTIR and acidity test. Characterization by XRD showed that catalyst of H-aluminosilicate have structure amorphous, while FTIR showed Si-O-Al bond at 457 cm-1. The acidity test showed that catalyst of H-aluminosilicate have Brí¸nsted acid site 0.0272 mmol/g and Lewis acid site 0.0005 mmol/g. Oleic acid was cracking at 340 oC for 3 and 5 hours. The product has been analyzed by GC-MS not showed compound forming biogasoline.
Keywords: H-aluminosilicate, biogasoline, oleic acid
ABSTRAK
Aluminosilikat dapat digunakan sebagai katalis dalam reaksi prengkahan. Pada penelitian ini telah dilakukan sintesis katalis H-aluminosilikat melalui metode hidrotermal dengan rasio Si/Al sebesar 20. Karakterisasi yang telah dilakukan meliputi uji XRD, FTIR, dan keasaman.Hasil XRD menunjukkan katalis H-aluminosilikat berbentuk amorf, sedangkan pada FTIR menunjukkan ikatan Si-O-Al pada bilangan gelombang 457 cm-1. Uji situs asam menunjukkan katalis H-aluminosilikat memiliki jumlah asam Brí¸nsted sebesar 0.0272 mmol/g dan jumlah sisi asam Lewis sebesar 0.0005 mmol/g. Proses perengkahan asam oleat telah dilakukan pada suhu 340oC selama 3 jam dan 5 jam. Produk cracking yang diuji dengan GC-MS tidak menunjukkan pembentukan senyawa biogasoline.
Kata kunci: H-aluminosilikat, biogasoline, asam oleat
Abdulloh, 2015, Preparasi dan Kajian Aktivitas Al3+- Bentonit untuk Katalis Sintesis Biodiesel dari Asam-asam Lemak dalam Minyak Jarak Pagar, Disertasi, Universitas Gadjah Mada.
Augustine, R. L., 1996, Heterogeneous Catalysis for Chemist, Marcel Dekker Inc., New York, 23-26.
Campbell, R., 2006, Synthesis and Characterization of Three-Dimensional Mesopori Materials, Journal of Microporous and Mesoporous Materials, 82, 145–155.
Emeis, C.A., 1993, Determination of Integrated Molar Extinction Coefficients for Infrared Bands of Pyridine Adsorbed on Solid Acid Catalysts, Journal of Catalysis, 141(2), 347–54.
Hensen, E. J. M., Poduval, D. G., Degirmenci, V., Ligthart, D. A. J. M., Chen, W., Mauge, F., Rigutto, M. S., dan Rob van Veen, J. A. 2012, Acidity Characterization of Amorphous Silica-Alumina, The Journal of Physical Chemistry, 116, 21416-21429.
Prasetyoko, D., Hamid, A., Fansuri, H. dan Hartanto, J., 2010, Sintesis ZSM-5 Mesopori dengan Metode Pemeraman dan Kristalisasi: Pengaruh Waktu Kristalisasi, Seminar Rekayasa Kimia dan Proses 2010, ISSN: 1411-4216.
Wijanarko, A., Mawardi, D.A.dan Nasikin, M., 2006, Produksi Biogasoline dari Minyak Sawit melalui Reaksi Perengkahan Katalitik dengan Katalis γ-alumina, Makara Journal of Technology, 10(2), 51–60.
COPYRIGHT NOTICE
1. By submitting the article to Jurnal Kimia Riset (JKR), the author has agreed to transfer some of the copyrights to the publisher of the research chemistry journal, Universitas Airlangga, indicated in the Copyright Transfer Agreement.
2. Authors still retain significant rights to use and share their own published articles for non-commercial purposes subject to Creative Commons Attribution-NonComercial 4.0 International License
3. All publications (printed/electronic) are open access for educational purposes, research, library, and other non-commercial purposes. Besides the purposes mentioned above, the editorial board is not responsible for copyright violations.
