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dc.contributor.authorKusmiyati
dc.date.accessioned2013-02-06T07:52:04Z
dc.date.available2013-02-06T07:52:04Z
dc.date.issued2008-09
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C. and Yarmo, M. A. (2008). “Study of catalysts comprising zirconium sulfate supported on a mesoporous molecular sieve HMS for esterification of fatty acids under solvent-free condition” Journal of applied catalysis. 347. 133-141. Zhang, T. and Datta, R. (1995). “Integral Analysis of Methyl Tert-butyl Ether Synthesis Kinetics”. Industrial Engineering Chemical Ressearch. 34. 730-740. Zhicai, Y., Xianbao, C. and Jing, G. (1998). “Esterification-Distillation of Butanol and Acetic Acid”. Chemical Engineering Science. 53. 2081-2088. http://www.chemeng.ui.ac.id/~wulan/Materi/port/BAHAN%20CAIR.PDF (http://www.geocities.com/markal_bppt/publish/plckl/plsuar.pdf http:// www.andaka.com, februari 2008 http://dtwh2.esdm.go.id/dw2007/ (2008) http://cetak.kompas.com/read/xml/2008/05/06/00300425/presiden.harga.bbm.aka n.naik. 6 Mei 2008 http://www.sripo-online.com/?urut=806&pil=berita_terkini. 16 Februari 2008en_US
dc.identifier.urihttp://hdl.handle.net/11617/2681
dc.description.abstractSemakin menurunnya cadangan minyak bumi yang bersumber dari fosil berakibat terjadinya krisis energi. Hal ini membuka peluang sumber daya nabati untuk digunakan sebagai energi alternatif untuk mensubtitusi bahan bakar minyak (BBM).. Pemanfaat sumber daya hayati sebagai sumber energi baru terbarukan (EBT) untuk mensubtitusi BBM akan memberikan keuntungan dalam aspek-aspek ketahanan energi, lingkungan, dan daerah diantaranya akan memberikan nilai tambah pada sumber daya hayati dan mengurangi emisi gas buang hasil pembakaran bahan bakar. Salah satu energi baru terbarukan yang dikembangkan di Indonesia adalah Biodiesel. Biodiesel merupakan bahan bakar alternatif pengganti petroleum diesel (solar) yang dibuat dengan cara mereaksikan minyak dengan alkohol dengan bantuan katalis asam maupun basa. Kendala yang dihadapi dengan penggunaan katalisator basa tersebut adalah terjadinya reaksi antara asam lemak yang terkandung dalam minyak nabati sehingga terbentuk reaksi penyabunan yang akan mengurangi kadar biodisel dan menyulitkan pemisahan produk biodisel. Cara lain dalam produksi biodisel adalah dengan esterifikasi asam lemak yang terkandung dalam minyak nabati diantaranya asam oleat dan metanol dengan katalisator asam. Pada penelitian ini pembuatan biodiesel dilakukan dengan reaktif distilasi menggunakan bahan baku asam oleat dengan menggunakan metanol. Reactive Distillation (RD) Technology merupakan salah satu metode yang baru dalam proses kimia dan sekarang sedang dikembangkan untuk memproduksi biodiesel. Penelitian ini bertujuan untuk mengembangkan perancangan Reactive Distillation technology dalam produksi ester asam oleat dan metanol dengan katalisator homogen secara experimental. Variable proses yang dipelajari antara lain jenis katalis, temperatur, rasio asam oleat:metanol, konsentrasi katalis dan waktu reaksi terhadap konversi asam oleat. Pada penelitian ini dipelajari pembuatan fatty acid methyl oleat atau lebih dikenal dengan biodisel melalui reaksi esterifikasi asam oleat dan metanol menggunakan katalisator asam sulfat, asam nitrat dan asam klorida dengan metode reaktif distilasi. Selanjutnya juga dipelajari pengaruh temperatur (100;120;150;180 °C), rasio asam oleat:metanol (1:l;1:5;1:6;1:7,1:8) dan jumlah katalisator H2SO4 (0,5%;1%;1,5%;2%) menggunakan asam sulfat sebagai katalis terhadap konversi asam oleat menjadi biodisel. Hasil penelitian menunjukkan bahwa, penambahan katalis 1 % konversi reaksi mencapai maksimal yaitu 0,9581 pada kondisi berat katalis H2SO4 1%, ratio metanol: asam oleat 8:1, dan suhu 1800C. Pada peningkatan katalis selanjutnya menyebabkan kenaikan konversi tidak begitu besar disebabkan tingginya konsentrasi katalis yang bercampur dengan biodisel menyebabkan sukarnya pemurnian biodisel. Kenaikan konversi asam oleat yang besar terjadi pada temperatur 120 °C namun pada kenaikan temperatur 150 °C dan 180 °C kenaikan konversi asam oleat sangat kecil. Kenaikan rasio asam oleat : metanol menyebabkan kenaikan konversi asam oleat. Hasil biodisel yang diperoleh memenuhi karakteristik standar biodiselen_US
dc.description.sponsorshipBERSAINGen_US
dc.publisherLPPM UMSen_US
dc.titlePENGEMBANGAN REAKSI ESTERIFIKASI ASAM OLEAT DAN METANOL DENGAN METODE REAKTIF DISTILASIen_US
dc.typeThesisen_US


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