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All Journal Indonesian Journal of Conservation Jurnal Inovasi Pendidikan Kimia Lembaran Ilmu Kependidikan JURNAL PROFESI KEGURUAN Chemistry in Education Indonesian Journal of Chemical Science Innovative Journal of Curriculum and Educational Technology Unnes Science Education Journal INKUIRI : Jurnal Pendidikan IPA Indonesian Journal of Chemistry Journal of Innovative Science Education Journal of Primary Education Jurnal Pendidikan dan Kebudayaan Prosiding Seminar Nasional Pascasarjana Jurnal Pendidikan Sains Indonesia (Indonesian Journal of Science Education) Jurnal Manusia dan Lingkungan
Kasmadi Imam Supardi
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Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Energy Environmental Science Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Physics Social Sciences Other

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Journal : Jurnal Manusia dan Lingkungan

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SINTESIS BIODIESEL DARI MINYAK LIMBAH BIJI KARET SEBAGAI SUMBER ENERGI ALTERNATIF (Synthesis of Biodiesel From Waste of Rubber Seed Oil as Alternative Energy Sources) Kasmadi Imam Supardi; Sri Wahyuni; Alauhdin Alauhdin
Jurnal Manusia dan Lingkungan Vol 18, No 1 (2011): Maret
Publisher : Pusat Studi Lingkungan Hidup Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jml.18433

Abstract

ABSTRAKBiji karet hanya ditemukan sebagai limbah padat dan belum termanfaatkan sepenuhnya. Minyak limbah biji karet yang digunakan dalam penelitian ini mengandung asam lemak bebas yang tinggi, yaitu 97,77% dan mempunyai bilangan asam yang tinggi pula yaitu setara dengan 6,2 mg KOH g minyak, sehingga perlu dilakukan esterifikasi untuk menurunkan kandungan asam lemak bebasnya menjadi ester. Metanol (20% volume minyak) direaksikan dengan minyak limbah biji karet dengan katalis asam sulfat 98% (0,5% volume minyak) menjadi ester. Dalam operasi reaksi transesterifikasi, digunakan variasi optimasi katalis yaitu pada 0,5% sampai 1,5% KOH dengan suhu operasi 60 o C dalam perbandingan metanol dengan minyak 1:3 (volume), dan dengan kecepatan pengadukan yang sama, didapatkan konsentrasi metil ester yang baik pada katalis 0,75%. Uji fisis minyak limbah biji karet hasil reaksi transesterifikasi adalah Specific Gravity 0,9000, Density 919,5, Korosi Lempeng Tembaga 1b, CCR 1,361% W, Kadar Air 0,22%, Viscosity 11,53mm 2 /s, dan Flash Point 182,5 o C. Hasil uji fisis menunjukkan belum semua parameter metil ester atau biodiesel memenuhi standar biodiesel. Hasil uji Performance unjuk kerja menunjukkan biodiesel yang dicampur solar dengan perbandingan volume 20:80 memberikan hasil emisi gas buang paling bersih dan waktu pembakaran yang paling lama.ABSTRACTWaste of rubber seeds is found only as a solid waste and has not fully exploited. Waste of rubber seed oil used in the research contains high free fatty acids, about 97.77% and higher acidity number, namely 6.2 mg KOH / g oil, so it needs esterification to reduce the free fatty acid content to be changed into ester. Methanol (20% volume of oil) reacted with  waste of rubber seed oil to become methyl ester with sulfuric acid 98% (0,5% volume of oil) as a catalyst. In the operations of transesterification variations of the optimization of catalyst 0.5% until 1.5% KOH was used with operating temperature of 60o C in methanol to oil ratio of 1:3 (volume). In the process of transesterification used stirring speed equal to speed of  producing the higher concentration product of methyl ester or biodiesel. The product of biodiesel with higher concentration  was found by reaction of transesterification with catalyst of KOH 0.75% and operating temperature of 60o C. The physical test of methyl ester or biodiesel from the transesterification reaction showed the Specific Gravity 0,9000; Density 919,5; Corrosion of  copper 1b; CCR 1,361%W; water content 0,22%; viscosity 11,53 mm2/s; and Flash Point 182,5o C; respectively. Only some parameters of biodiesel product fulfilled   the standards.  Performance test of the biodiesel product showed that mixture of biodiesel and diesel in the ratio 20:80 produced the results of cleanest exhaust gas emissions and longest time of its burning
Co-Authors - Jumaeri Achmad Binadja Afniandari, Laily Noor Afriantono, Harris Agung Tri Prasetya Agustin, Alfiana Agustin, Alfiana Alauhdin Alauhdin Alauhdin Alauhdin Albanani, Tsabit Ali Djamhuri Amin Yusuf Amrullah, Aziz Anis Qori Aeni, Anis Qori Antonius Tri Widodo Armynda Dewi Cita Sari, Armynda Dewi Cita Aruni, Cipta Restu Aruni, Cipta Restu Aziz Amrullah, Aziz Didi Kurniadi, Didi Edy Cahyono Eling Purwantoyo Endang Susilaningsih Fitri Rahmawati Fitriya Karima, Fitriya Fredy Setyawan, Fredy Fuadi, Asyfa Gustiyani Eka Sulistyowati, Gustiyani Eka Hadisaputo, Subiyanto Hanifa, Deska Aisyia Hanik, Ajik Nur Hasanati, Zuyyina Helivia Elvandari, Helivia Hidayah, Umi Lailatul Ina Ristian, Ina Indraspuri Rahning Putri Indriawati, Ani Isbullah, Isbullah Ismi Inayati, Ismi Karnawan, Karnawan Kasmui -, Kasmui Latifah - Lestariningtias, Lies Lis Setiyo Ningrum Mahardika, Gema Masturi Masturi Mohammad Asikin muflihah muflihah Murbangun Nuswowati Muriani Nur Hayati, Muriani Nur Mutiara Nurul Lita Azizah Nanik Wijayati Nina Fitriani, Nina Ningrum, Lis Setiyo Ningrum, Lis Setiyo Noorarnie, Andhiena Miftamumtaza Nurhidayati, Eka Nursidik, Nursidik Nurwachid Budi Santosa, Nurwachid Budi Nurwachid Budi Santoso Pandu Wahyu Pratama, Pandu Wahyu Puji Eka Rahayu Purwati, Eko Puspito, Dhimas Rinda Adi Putut Marwoto Rahmawati, Lidia Ramandanti, Sofia Kusuma Rizka Rida Utami Rizqiana, Fika Atina Rofikhatul Ula, Wahyu Rikha Rohmawati, Baiti Rosyada, Fattya Saheri, Saheri Santi Setiawan, Santi Saptorini Saptorini, Saptorini Sari Nuryani, Sari Siska Fitriani, Siska Siti Sundari Miswadi Solekhan, Ziki Sri Haryani Sri Kadarwati Sri Mantini Rahayu Sedyawati, Sri Mantini Rahayu Sri Mulyani Endang Susilowati, Sri Mulyani Endang Sri Susilogati Sumarti Sri Wahyuni Sri Wahyuni SRI WARDANI Sriwijayanti, Nafiroh Subiyanto Hadisaputo, Subiyanto Sudarmin Sudarmin Sulhadi - Suryana, Olin Amin Suryana, Olin Amin Tjahyo Subroto, Tjahyo Tresnoningtias Mutiara Anisa, Tresnoningtias Mutiara Triastuti Sulistyaningsih Triawan, Singgih Ade Triawan, Singgih Ade Vivi Nurul Ifadloh, Vivi Nurul Wijanarko, Andrian Gandi winarto winarto Wisnu Sunarto Wiwi Isnaeni Woro Sumarni Yahya, Sulaiman Yotiani Yotiani, Yotiani Zammi, Muhammad Zammi, Muhammad