Proses Pembuatan Biofuel dengan Metode perengakahan Menggunakan Katalis Padat

<table class="NormalTable"><tbody><tr><td width="200"><span class="fontstyle0">The development of population growth causes of fuels need increasing. Because of<br />that reason, it necessary to create alternative fuels which are friendly to the<br />environment to meet the fuels need in society. Fossil fuel is a non-renewable fuel.<br />Biofuel as an alternative fuel can be taken as a solution to solve this problem. The<br />reviewd aim was to determine the effect of raw materials used on yield product and<br />the different effects of temperature and catalysts on the yield of special materials<br />(gasoline, diesel, kerosene) biofuel. Biofuel production started from the<br />preparation of raw materials, catalylic, and catalytic cracking process using a<br />fixed bed reactor. Raw materials greatly affected yield product. The highest yield<br />products were being gotten from RBDPS raw materials of 93.29%. Biofuel from<br />used cooking oil and concentration of red sludge catalyst of 15% produced the<br />highest biofuel with gasoline compound of 73.86% and kerosene compound of<br />26.14%. Biofuel from camelina oil with ZSM-5-Zn catalyst concentration of 30%<br />produced the highest gasoline yield of 75.65%.</span></td></tr></tbody></table>

Produksi Etanol Berbahan Baku Molasses Melalui Proses Fermentasi Menggunakan Ragi Roti

<table class="NormalTable"><tbody><tr><td width="200"><span class="fontstyle0">One of the alternatives and renewable energy that is being developed is ethanol.<br />Ethanol is better known as Gasohol. Molasses can make Gasohol through the<br />synthesis of molasses fermentation using a yeast starter. This study aims to<br />analyze how the effect of the addition of baker's yeast, the length of fermentation<br />incubation time on the resulting alcohol content. In addition, the yield obtained<br />from the highest amount of ethanol production in the molasses fermentation<br />process. Ethanol production through fermentation synthesis using the help of<br />microorganisms Saccharomyces cerevisiae. Based on the objective review, the<br />variation used is the amount of baker's yeast, namely 0.1; 0.2; 0.3; 0.4; and 0.5%<br />glucose levels. The fermentation times were 24, 48, 72, 96, and 120 hours (T =<br />30?C and pH = 5). Based on these variations, the highest alcohol production<br />was 11%, obtained by adding 0.2% of yeast to the glucose content in the solution.<br />The incubation time is 72 hours. The yield obtained for the highest alcohol<br />content is 4.48%</span></td></tr></tbody></table>

Pengaruh Penambahan Gelling Agent Carbopol Dan Asam Stearat terhadap Nilai Kalor Etanol Gel

<table class="NormalTable"><tbody><tr><td width="200"><span class="fontstyle0">Ethanol gel is a semisolid fuel made from ethanol by mixing the gelling agent.<br />Ethanol gel has the advantage of facilitating packaging, distribution and storage<br />because it does not spill and flow easily. Another advantage of ethanol gel is that it<br />does not smoke during the combustion process, does not cause soot and does not<br />produce harmful gases. This research aims to compare the 2 best gelling agents<br />and study the effect of adding the gelling agent to the calorific value. The process<br />of making ethanol gel begins by inserting a gelling agent of 4-12% w into a beaker<br />glass. Then add 20 ml of distilled water while stirring until the solution thickens.<br />After that, slowly put 75 grams of 95% ethanol into the beaker which already<br />contains the gelling agent solution. For the manufacture of ethanol gel with a<br />stearic acid gelling agent, heating is done first in making the solution and left for 3<br />hours after mixing with ethanol. Based on the analysis, it was found that the<br />highest calorific value was 12052.7 cal / g with stearic acid gelling agent in the<br />addition of 12% (% w).</span></td></tr></tbody></table>

Studi Kelayakan Pabrik Gula Rafinasi dengan Kapasitas 100000 ton/tahun melalui Analisa Ekonomi

<table class="NormalTable"><tbody><tr><td width="200"><span class="fontstyle0">Refined sugar is sugar that is produced from raw sugar through a refined process<br />to remove impurities and molasses attached to Raw sugar. The process that will be<br />used in the manufacture of refined sugar from raw sugar with carbonation<br />purification is divided into seven stages, namely: affination process, clarification<br />process, filtration process, decolorization process, evaporation process,<br />crystallization process, drying process. The plant is planned to operate 300 days<br />per year with a capacity of 100,000 tons per year. The factory is planned to be<br />established in Sambas Regency, West Kalimantan. From the results of the<br />economic analysis obtained: Internal Rate Of Return (IRR) of 66%, Pay Out Time<br />(POT) of 3.3 years, Break Even Point (BEP) of 36%. Based on the technical and<br />economic analysis that has been carried out, it is feasible to establish a refined<br />sugar factory from raw sugar</span></td></tr></tbody></table>

Pengolahan Limbah Penggilingan Padi Menjadi Bioplastik menggunakan palstisizer Sorbitol

<table class="NormalTable"><tbody><tr><td width="200"><span class="fontstyle0">Research on the manufacture of bioplastics from bran is one of the efforts to<br />develop the development of environmentally friendly plastics because they can be<br />decomposed by microorganisms. In addition, this study also seeks to reduce<br />environmental pollution due to the disposal of rice mill waste. The research was<br />conducted by mixing rice bran with water, sulfuric acid and sorbitol in various<br />variations of the ratio of sorbitol and bran 1:10; 2:10; 3:10; 4:10 and 5:10 (v:b).<br />Furthermore, chitosan was added as a reinforcement with variations in the<br />addition of chitosan with bran, namely 4:10; 6:10; 8:10; 10:10 and 12:10 then<br />printed and analyzed for dance strength, swelling and surface morphology. The<br />test results showed the highest tensile strength value in the ratio of sorbitol and<br />bran 5:10 and chitosan bran 10:10 with the highest tensile strength value of 64.27<br />MPa and 25% swelling value. Surface morphology shows an uneven and hollow<br />surface.</span></td></tr></tbody></table>