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INDONESIA
Seminar Nasional Teknik Kimia Kejuangan
Published by Universitas Pembangunan Nasional Veteran Yogyakarta
ISSN : -     EISSN : -     DOI : -
Core Subject : Science, Social, Engineering,
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Engineering Environmental Science
Prosiding Seminar Nasional Teknik Kimia Kejuangan adalah media online dari makalah yang telah diseminarkan pada acara Seminar Nasional Teknik Kimia “Kejuangan” (SNTKK). SNTKK merupakan agenda tahunan yang diselenggarakan oleh Program Studi Teknik Kimia FTI UPN ”Veteran” Yogyakarta. Seminar ini merupakan sarana komunikasi bagi para peneliti dari perguruan tinggi, institusi pendidikan, serta lembaga penelitian maupun industri, dalam mengembangkan teknologi kimia untuk pengolahan sumber daya alam Indonesia.
Arjuna Subject : -
Articles 588 Documents
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Adsorpsi Logam Fe (II) dalam Limbah Cair Artifisial Menggunakan Komposit Kitosan-Karbon Aktif Cangkang Buah Karet Zainal Arifin; Dedy Irawan; Muh Kasim; Mulyana Fajar
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2018: PROSIDING SNTKK 2018
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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ESTER ASAM KARBOKSILAT DAN ISOPROPIL ALKOHOL UNTUK BAHAN DASAR BIOPELUMAS Mahreni Mahreni; Faizah Hadi; Renung Reningtyas; Gemal Kurniawan; Maulana Fahdlurahman Al Abdillah
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

ESTERIFICATION OF OLEIC ACID, STEARIC ACID AND ISOPROPIL ALCOHOL FOR LUBRICANT BASE.Uncontrolled spill of petroleum base lubricant has been polluted the environment. An alternative of biodegradable and environmental friendly lubricant is needed to substitute petroleum based lubricant. Biolubricant can be made from plant or animal oil, or synthetic lubricant that meets biodegradability criteria and nontoxic to human and environment. The aim of this research is to produce ester from Oleic acid, Stearic acid and Isopropyl alcohol as a base stock for lubricant. Range of time in reaction was set 3,4, and 5 hour. Stearic acid was varied 11-15 gram, Oleic acid 85- 89 ml, and IPA 10-15 ml. The resulting products of ester were confirmed by FTIR. Kinematic viscosity, Pour point, Freezing pont are evaluated by ASTM analyses. Ester produced from 12 gr oleic acid, 88 ml of oleic acid and 5 mil of IPA at room temperature is still in liquid phase, with kinematic viscosity at 100oCis larger than 4,099 mm2/s, Pour point 24oC and Freezing point = 12oC.This ester is potential to be used as biolubricant base stock.
Briket dari Ampas Batang Sorgum Manis (Sorghum Bicolor L. Moench) sebagai Sumber Bahan Bakar Alternatif Tjukup Marnoto; Atiqa Eka Suci; Ria Septiana
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2018: PROSIDING SNTKK 2018
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Studi Pengaruh Co-doping Neodymium (Nd) Terhadap Sifat Fisik Elektrolit Ce0.9Gd1-xNdxO2-z dengan Metode Sol-Gel untuk Aplikasi IT-SOFC Jarot Raharjo; masumi .; Wahyudin .
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
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Abstract

Neodymium and Gadolinium co-doped ceria (Ce0.9Gd1-xNdxO2-z) is a promising alternative as a solidelectrolyte for intermediate temperature solid oxide fuel cell (IT-SOFC) due to its low operating temperatureand its high electrical conductivity. Ce0.9Gd1-xNdxO2-z powders, with x=0.25, 0.50 and 0.75mol% ofneodymium were successfully syhnthesized with a sol-gel method and citric acid as an organic precursor.The samples were calcined at temperature of 750oC for 5 hours. The powders properties were thencharacterized by X-ray diffraction, scanning electron microscopy, thermal gravimetry analysis, and thesintered pellets were evaluated by Archimedes method for calculate the density. Sintered Ce0.9Gd1-xNdxO2-zsamples exhibited the maximum theorical density of 97% which is suitable for solid electrolytes. TheCe0.9Gd1-xNdxO2-z powders consist of face-centered cubic fluorite ceria structure confirmed with x-raydiffraction (XRD). methodology investigated showed a better control of stoichiometry, impurities, and lowcost.
Pengaruh Aktivator Effective Microorganism 4 Terhadap Proses Pembuatan Pupuk Organik dari Kotoran Sapi Sri Wahyu Murni; Tunjung Wahyu Widayati; Bassmall Andriouty Pratama; Satriyo Oktavianto
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
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Cow's excrements originated from slaughterhouse is an organic waste that can damage the environmenttherefore need to be process to make something such as fertilizer using activators that help thedecomposition process run faster. Activator used in this experiment is Effective Microorganism 4.Decomposition of cow’s excrements becoming organic fertilizer by mixing cow’s excrements with EffectiveMicroorganism 4 activator. Ratio of cow’s excrements weight (Metric Ton) by volume (Liter) of EffectiveMicroorganism 4 activator is 1:0; 1:1; 1:2; 1:3; 1:4. Thereafter, add the anorganic fertilizer (Urea, KCl,SP-36) and limestone to the mixture each about 2,5 kilograms after that cover the mixture with plastic wrapand make some holes with bamboo. The experiment result for this study using Effective Microorganism 4activator by adding 4 liter in the decomposition process for 18-21 days to produce organic fertilizer consistabout 15,01% organic carbon, 0,87% total nitrogen, 17,25 C/N ratio. These result meet the qualitystandards set by the Minister of Agriculture No.70/Permentan/SR.140/10/2011.
Investigasi Sifat Bahan Bakar Campuran Disel Minyak Bumi dan Biodisel Dari Minyak Kelapa Sawit, Minyak Jarak dan Minyak Kanola S.I Heriyanti; Sumbogo Murti S.D; Adiarso Adiarso
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
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Biodiesel is a renewable fuel derived from various biomass which is very abundant in Indonesia. The physical properties of biodiesel are similar to those of petroleum diesel, but the fuel significantly reduces green house gas emission and toxic air pollutants. However, there are some disadvantages of biodiesel such as vulnerable to water contamination, lower energy content as well as having problems at low temperatures. Biodiesel can be blended and used in many different concentrations. Indonesia government has launched a policy of biodiesel mix gradually to 30% in 2020. To ensure that policy implementation, a study of blending biodiesel from Palm oil, Jatropha oil and Canola oil has been carried out with various compositions. Some thermophysical properties of the mixture have been investigated in accordance to ASTM standard. The measurement result of biodiesel blends fuel varies according to the mixture composition and origin of biodiesel. Generally, the properties of Palm oil and Canola oil biodiesel blend fuel can meet the standards that apply in Indonesia but biodiesel from Jatropha oil cannot meet the quality standards for oxidation stability. Antioxidant can be used to improve the oxidation stability of biodiesel and its mixture.
Pembuatan Keripik Buah Jambu Biji Menggunakan Alat Vacuum Frying Dengan Variabel Suhu dan Waktu Rudi Firyanto; Ery Fatarina; Nyimasayu Dinda Agagis
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2018: PROSIDING SNTKK 2018
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Fuel Grade Ethanol Production by Batch Distillation Using Ternary Components I Gusti S Budiaman; Tjukup Marnoto; Chintya Rizki Hapsari; Risqi Angga Yudha Prakosa
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
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Ethanol is a chemical compound whose production is abundant in Indonesia. Ethanol is also widely used in the pharmaceutical industry, cosmetics, solvents, and spiritus fuel. Pure ethanol also has a high octane rating making it suitable used to raise the octane number of the gasoline. One way that can be done to purify the ethanol is a way to shift the ternary distillation azeotrope so that its purity can reach over 99.5%. Chemicals used to raise the boiling point of water include sulfuric acid, sodium hydroxide, ethylene glycol, glycerol and citric acid at certain concentrations. Ternary components were added to the raw material alcohol 86% specified in such order to obtain increasing boiling point of water as the heavy fraction by 5 oC, 10 oC, 15 oC, 20 oC and 25 oC.The distillation process is done in batch include column packing material at atmospheric pressure. Distilled provide 99.57% up to 99.91% purity ethanol in ternary addition of sulfuric acid, 99.59% up to 99.79% in the ternary addition of sodium hydroxide, 99.55% in the ternary addition of ethylene glycol, 99.64% on a ternary addition of glycerol, and 99.42% in ternary addition of citric acid. So in this experiment only the addition of sulfuric acid ternary who can give the best results with ethanol content 99.91%.
Bead Gel dari Karagenan-Carboxymethylcellulose dengan Crosslinking Glutaraldehid sebagai Controlled Release Urea Sperisa Distantina; Faramitha Rahayu; Tamara Hanum Ghina Zalfa
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2018: PROSIDING SNTKK 2018
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Cover Prosiding SNTKK 2017 editor prosiding SNTKK 2017
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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