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All Journal JURNAL TEKNOLOGI KIMIA DAN INDUSTRI
Diyono Ikhsan
Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro
Chemical Engineering, Chemistry & Bioengineering Chemistry Engineering Industrial & Manufacturing Engineering

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PEMBUATAN BIOGAS DARI SAMPAH SAYURAN Andreas Felix S.; Paramitha S.B.U.; Diyono Ikhsan
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 1, Nomor 1, Tahun 2012
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (141.718 KB)

Abstract

Vegetable waste is produced in a huge volume everyday. The sources of this waste  are traditional market, where the waste is usually  unusefull or just taken by people for feeding cows. It is actually an organic waste that can be used to make biogas. The reactions of biogas reforming are included by three steps, hydrolysis reaction, acidic reaction and methanogenic reaction. At this research we use cow manure as a mixing and  as starter for methanobacteria.The intention of this research are to make biogas using vegetable waste from traditional market in batch system, to know the concentration and composition of  vegetable waste, water and cow manure in slurry, and also to know the heating value and volume of biogas. Tools that used are plastic tank and simple type of  floating drum biodigester with manometer that is operated in room temperature, atmospheric pressure. The dependence variables are concentration of slurry within 6-10 % (dry basic weight per volume slurry) and composition  1 : 0, 1 : 0,5 and 1 : 1 weight comparison of vegetable waste with  cow manure. The data  of  biogas volume and heating value will be observed everyday until the production of biogas stops.Biogas is produced since the first day of digestion until 35 days. The accumulation of biogas volume is reached the highest amount in 9 % of concentration and 1 : 0,5 of composition. The analysis of heating value is being measured based on the highest volume from the best consentration and composition. Biogas can be burned on the 7th day until 30th. The highest heating value of it is about 10081 Joule/day on the 18th day. This is happen during the periode of regeneration time of methanogenic bacteria which converts the acetic acid into methane.
PEMBUATAN SURFAKTAN DARI MINYAK KELAPA MURNI (VCO) MELALUI PROSES AMIDASI DENGAN KATALIS NaOH Astri Probowati; Paradigma Carlo Giovanni; Diyono Ikhsan
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 1, Nomor 1, Tahun 2012
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1765.181 KB)

Abstract

The used of coconut oil of surfactant has several advantages, among others, are renewable resources, cleaner, and more pure than the used of petrochemical-based raw materials. Thus the necessary research to obtain a surfactant that has those criteria. One of the surfactant that meet both criteria is diethanolamide surfactant. The materials used for the manufacture of methyl ester is VCO and methanol with a catalyst H2SO4 while the materials used for the amidation are methyl ester from VCO, and diethanolamine with catalyst NaOH. The tools used in this research are tree neck flask, cooling loop, magnetic stirrer, waterbath, stative and clamps. From the research results obtained at high conversion, namely the mole ratio of methyl ester : diethanolamine 1:2 that is equal to 71,4% and percent weigth of catalyst is 1% with mole ratio 1:1.25 is 70,8%. From this research can be concluded the greater the mole ratio of the reactant and percent weight of the catalyst then the greater the resulting conversion.
Co-Authors Andreas Felix S. Astri Probowati Paradigma Carlo Giovanni Paramitha S.B.U.