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-, Sukamta
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PEMBUATAN DAN KARAKTERISASI BIODIESEL DARI MINYAK BUNGA MATAHARI DAN METANOL DENGAN KATALIS NaOH -, Sukamta; Endriyani, Sunarti; Anita, Fitri
JURNAL TEKNOLOGI TECHNOSCIENTIA Academia Ista Vol 12 No 02 Februari 2008
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (402.065 KB) | DOI: 10.34151/technoscientia.v0i0.2017

Abstract

Biodiesel is fuel made of seed oil and has potential to be used as substitute of crude oil. In this experimental work, it was used sun flower seed oil as a raw material of biodiesel.The aims of the research were to study a transesterification reaction of trigli-seryde of a sun flower seed oil and methanol and to attain the optimum conditions of the process to produce good quality of biodiesel. This research were done by mixing sun flower seed oil, methanol and catalyst with oil and methanol volume ratios were 1: 6 and 1:9 respectively. The ester produced were then characterised. The experiments resultant showed that the best quality of biodiesel were attained when the volume ratio between oil and methanol was 1:6 at temperature of reaction of 50oC and time of reaction of 90 minute. The characteristic of the oil produced were specific gravity 60/60 °F = 0,8846 ; viscosity kinematic = 4,562 cSt; pour point = 25,7°F ; flash point = 115 °F, and conversion of 32,42%. This characteristic in the range of the standard of biodiesel based on the letter of Ketua Badan Standarisasi Nasional No.04 – 7182 – 2006 about biodiesel.
PEMECAHAN SENYAWA KOMPLEKS DALAM KAOLIN DAN PENGAMBILAN ALUMINA DENGAN METODE KALSINASI DAN ELUTRIASI -, Sukamta; Budiman, Arif; -, Sutijan; W, Akhmad Bening; Budiharto, Segar
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 2 No 1 Agustus 2009
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v2i1.418

Abstract

Caolin or chines clay seldom used in industry, is formed of very little particles especially caolinite, i.e. a mixture of aluminum oxyde (Al2O3), silika oxyde (SiO2) and wa-ter (H2O). Each composition posseses a different characteristic. The article discusses a separation alumina from caolin which was from Semin, Klaten, the midle of Java, by cal-cination and elutriation methods. The calcination method is a separation one by breaking the bond between the substances using heat. In this case, it was used 800oC because at this temperature it reached vitrification point and the complex bond was broken. The sam-ple was dried under the sun, crushed, and screened by multiple screening i.e. 200 mesh, 230 mesh, 270 mesh, 325 mesh and 400 mesh. From the screening process it was ga-thered fraction between 325 and 400 mesh as the most one, therefor this farction was us-ed as a sample. This one then was elutriated with fluid terminal velocity was varied. It was obtanied that the concentration of alumina incresed relatively high at the fluid velovity of 0.1278 cm/s and 0.2117 cm/s i.e. the alumina concentration increased of 5,2% dan 7,4% became 76.81%.
ETANOL DARI UMBI KAYU DAN KARAKTERISASI CAMPURANNYA DENGAN BENSIN SEBAGAI SUBSITUTUSI BENSIN -, Sukamta; Kustanto, David; Yanto, Tri Nuri
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 2 No 2 Februari 2010
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v2i2.454

Abstract

The mixture of etanol and gasoline which is called bioetanol could be an alternatif for fuel. An etanol could be made of cassava. This article discusses a further development of ethanol production and its blend with gasoline and its characterization as a fuel. The experimental work was devided into three steps, i.e. material preparation, fermentation, and finally distillation at 80, 95 and 110 0C. The destillitation resulted a 95% ethanol and the conversion of carbohydrate to ethanol was about 93- 98%. The analysis results of the blend of gasoline and ethanol such as kynematic viscosity 100 oF at temperatures of 40 and 60 oC was 8,645 cSt dan 8,151 cSt respectively and the specific grafity at temperatures of 40 and 60 oC 0,7472 dan 0,743 respectively. The flame test of the blending of gasoline: ethanol volume of 9:1 and the 100 % gasoline results showed that the flame of bioethanol (9 :1) was about 39-40 second which was 4-6 second longer than the 100 % gasoline that the flame was about 34-35 second.
PEMBUATAN DAN KARAKTERISASI BIODIESEL DARI MINYAK BUNGA MATAHARI DAN METANOL DENGAN KATALIS NaOH -, Sukamta; Endriyani, Sunarti; Anita, Fitri
JURNAL TEKNOLOGI TECHNOSCIENTIA Academia Ista Vol 12 No 02 Februari 2008
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v0i0.2017

Abstract

Biodiesel is fuel made of seed oil and has potential to be used as substitute of crude oil. In this experimental work, it was used sun flower seed oil as a raw material of biodiesel.The aims of the research were to study a transesterification reaction of trigli-seryde of a sun flower seed oil and methanol and to attain the optimum conditions of the process to produce good quality of biodiesel. This research were done by mixing sun flower seed oil, methanol and catalyst with oil and methanol volume ratios were 1: 6 and 1:9 respectively. The ester produced were then characterised. The experiments resultant showed that the best quality of biodiesel were attained when the volume ratio between oil and methanol was 1:6 at temperature of reaction of 50oC and time of reaction of 90 minute. The characteristic of the oil produced were specific gravity 60/60 °F = 0,8846 ; viscosity kinematic = 4,562 cSt; pour point = 25,7°F ; flash point = 115 °F, and conversion of 32,42%. This characteristic in the range of the standard of biodiesel based on the letter of Ketua Badan Standarisasi Nasional No.04 – 7182 – 2006 about biodiesel.
Co-Authors -, Sutijan Arif Budiman Budiharto, Segar Endriyani, Sunarti Fitri Anita, Fitri Kustanto, David W, Akhmad Bening Yanto, Tri Nuri