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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.
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Articles 76 Documents
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Search results for , issue "2017: PROSIDING SNTKK" : 76 Documents clear
Pengaruh Kondisi Operasi pada Pembuatan Green Diesel dari MinyakNyamplung dengan Katalis NiMo/Al2O3 dan NiW/Al2O3 Sumbogo Murti S.D.; Joni Prasetyo; Galuh Wirama M; Adiarso Adiarso
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

The attractiveness of biodiesel as an alternative fuel compared to fossil fuels because it has many advantages such as the availability of abundant raw materials, more environmentally friendly, high combustion efficiency, low sulfur content, high cetane number and biodegradability. Making biodiesel from callophylum inophyllum oil has been done through the hydrogenation process. Callophylum inophylum oil was treated via degumming and neutralisation to remove all impurities before hydroprocesing. Hydroprocessing was carried out in a 500ml autoclve at 30 – 50 MPa of initial hydrogen pressure, 300 – 400 oC of reaction temperature and equiped with stirrer and cooling sistem. NiMo/Al2O3 or NiW/Al2O3 was activated with CS2 mixture at 370 oC prior to the reaction. Some physical and chemical properties of the catalytic hydroprocessing product have been investigated in accordance to ASTM standard. The measurement result of product varies according to the operation condition. The result showed that calophyllum inophullum oil can be used as raw material for green diesel over NiMo/Al2O3 and NiW/Al2O3. Sulfided NiMo/Al2O3 catalysts are preferred due to high diesel yield.
Aplikasi Metode Perhitungan Hydraulic Flow Unit (HFU) dalam Penentuan Persebaran Permeabilitas pada Model Reservoir Statis Joko Pamungkas; Bambang Bintarto; Farah S Normaysti
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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AbstractPermeability in petrophysical analysis is one of the physical properties of rocks that determination productivity, reservoir in place, and fluid distribution in the reservoir. In this study, calculation for permeability distribution using the equation of crossplot between porosity and permeability from routine coredidn’t representative for S Field. Hydraulic Flow Unit (HFU) methodused to gave more representative distribution of permeability in static model.The method of calculated HFU on the S Field is divided into several methods such as : calculated HFU of routine core data (HFU Core), calculated HFU of routine core data and added with permeability and porosity from well test (HFU Core + Perm. Well test), calculatedHFU of routine core data and combined with oil rate from well test (HFU Core + Qo test), and calculatedHFU of routine core data and combined with cumulative oil production from each well (HFU Core + Np). Permeability distribution from HFU Method gave higher values of permeability for S Field than from single transformation (crossplot). The effect of calculated permeability distribution in static reservoir model with HFU method can be seen from oil in place. HFU Core + Np have better permeability distribution than other calculations. It can be seen from a comparison of oil in place (reserves of oil in the reservoir) between the calculation HFU Core + Np with single transformation (crossplot). Oil in place in the static model from the calculation with HFU Core + Npis 58.57 MMSTB while the oil in place with crossplotpermeability and porosity of routine core data is 46.88 MMSTB.
Pengaruh Aktivator Stardec terhadap Proses Pembuatan Pupuk Organik dari Kotoran Sapi Tunjung Wahyu Widayati; Sri Wahyu Murni; Afika Syahliana Sriadi; Deka Prima Rosalinda
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Cow’s feces originated from farms dairy an organic waste that can causing an environmental pollutiontherefore need to be process to make something such as fertilizer using activators that help the decompositionprocess run faster. Activator used in this experiment is Stardec. Decomposition of cow’s feces becomingorganic fertilizer by mixing cow’s feces with Stardec activator. Ratio of cow’s feces weight (Metric Ton) byweight (Kilogram) of Stardec 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 withplastic wrap and make some holes with bamboo. The allowing the mixture for 3 weeks to make an analysis ontemperature and C/N ratio for 3 days. The experiment result shows that process of composition for 21 dayson Stardec with 10 kg weight to produce organic fertilizer consist about 15,23% organic carbon, 0,84% totalnitrogen, 18,13 C/N ratio. These result meet the quality standards set by the Minister of AgricultureNo.70/Permentan/SR.140/10/2011.
PENGARUH GARAM TERHADAP PARAMETER VAN’T HOFF PADA PERSAMAAN KENAIKAN TITIK DIDIH Setiyadi Setiyadi
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

In the equation to determine the boiling point rise , Van't Hoff  parameter is used. However  the parameters can only be used for dilute solutions. For this reason, it is necessary to do experiment to determine but for concentrated dilution. A mathematical : k = a.exp (b.m) is used to find the parameter. One hundred mililiter distilled water is added into beaker, then NaCl is also added to form NaCl solution of 0,25 molal. was added to water to form a 0.25 molal Na Solution is heated until boil and the boiling temperature n recorded. The experiment are conducted for different molality and type pf salt. The experimen shows that boiling point are  influenced by strong/weak acid and strong/weak base. Each type of salt produce parameter different. The value of constante a is 0,853 to 3,707 and constante b is -0.16 to -0.42 with  errata average above 10%.
Pembuatan Edibel Film sebagai Zat Pemlastik dari Pati Ubi Kayu dengan Penambahan Sorbitol MF. Sri Mulyaningsih; Ery Fatarina; Ahmad Shobib
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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In the increasing public knowledge about the dangers of plastic packaging that can harm the environment, the use edible film is something very interesting. The advantage of the use of the edible film can protect food products as well as safe from the environment. To produce good quality edible film substance can not be separated from the plasticizer is added. Plasticizer substance is an organic material with low molecular weight are added in the edible film with intent to weaken the stiffness of the polymer, while increasing the flexibility and extensibility of polymer. Edible direct utilization of the film is as a coating material for fruits. In order to improve the utilization of cassava starch we conducted research on “Edible Film as Substitute For Plastic Substances From Cassava Starch With The Addition of Sorbitol “ .From the results of calculations using the statistical program found that the effect of variable starch by -0,1 ; sorbitol at 0,3 ; temperature of -0,15. This means that the most influential variable in making edible film of starch with the addition of sorbitol is it self, followed by the final temperature and starch concentration. Of interaction effect between variables, it was found that the effect of the interaction value of 0,05. It also means that the variable effects of starch and sorbitol also depend on the effect of variable temperatures to get the most edible film. Can be seen also from the normal probability graph effect, that is the furthest point sorbitol, which means these variable are the most influential and has the effect of the interaction between variables
Hydrothermal Synthesis and Performance of Li 4 Ti 5 O 12 and Sn Composite as Anode Material for Lithium Ion Battery Widhiatmaka Widhiatmaka; Guntur Tri Setiadanu
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Lithium titanate (Li4Ti5O12) and tin (Sn) composites are successfully prepared by hydrothermal synthesis. The objectives of this research were to obtain a spinel structure of LTO at a calcination temperature of 500C, and to improve performance of LTO by addition of Sn. The thermal, crystal structure, microstructure and electrical properties of the samples have been characterized by DT/TGA, XRD, SEM/EDX, and EIS, respectively. Meanwhile, electrochemical properties were analyzed using a charge-discharge battery analyzer. The results showed that the spinel phase was obtained for  LTO 500oC and 10%Sn composite with the highest conductivity value of  9.06 x 10-7 S/cm. Cyclic voltammetry test showed a couple of anodic-cathodic reduction-oxidation (redox) voltages at 1.48V and 1.74 V for  LTO and at  1.65 V and 2.11 V for TiO2. Lithiation voltage for Sn occurred at 0.61 V. The charge/discharge test of LTO 500oC and 10%Sn composite showed that the addition of Sn exhibited capacity at  low current-voltage (0.6 V), identifying the advantages of composite which still had discharge capacity at low voltage. The specific capacity for LTO 500oC and 10%Sn composite increased from 76 to 110 mAh/g at 0.3C rate. And the spinel LTO sample can work up to 60C rate.
Studi Dinamika Proses Distilasi Reaktif Dalam Produksi 2-EthylhexylDodecanoate Menggunakan Aspen Plus Dynamics: Fungsi Alih Antara Komposisi Produk Terhadap Beban Reboiler dan Laju Refluks I Gede Pandega W; Tedi Hudaya; Philander .
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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In chemical industry, control system is one of the most important things to ensure production quality andsafety. In designing the control system, dynamics models in the form of transfer functions are required. In acomplex process the transfer functions are derived from black box models, in which the relationshipsbetween input and output variables are obtained from the dynamic data regression. One of the complexprocesses that can be found in the chemical industry is reactive distillation (RD). RD control system usuallytake the products compositions as controlled variable (CV) while manipulated variable or controller output(CO) are reboiler duty and reflux flow rate. This research aims to find the form of the transfer functionbetween CV and CO, as well as the values of the parameters of the transfer function. To achieve this goals,dynamic simulations of RD column was carried out by step test using Aspen Plus Dynamics. The result wasthen regressed to obtain the most appropriate transfer function. The chemical process that is applied in thecolumn RD is the production of 2-ethylhexyl-dodecanoate, a fatty acid ester which has a high economic valuefor it is widely used as raw materials of specialty chemical
Optimasi Proses Ozonasi Untuk Penurunan Kadar Krom (Cr) dalam Limbah Cair Elektroplating dengan Metode Respon Permukaan Aji Prasetyaningrum; M. Djaeni; Bakti Jos; Yudhy Dharmawan
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
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Industrial wastewater from electroplating process containing the heavy metals, such as Chromium (Cr). The initial content of Cr in electroplating waste water was approximately 78.24 ppm. The Cr content may be discharged into waters and safe for the environment is 2 ppm.Industrial electroplating waste water usually treated with a combination of chemical and physical processes such as coagulation and flocculation. However, conventional processing system requires a long of processing time and a large area. This study aims to provide an alternative treatment of electroplating wastewater through the application of ozonation technology. Response Surface Methodology was used to obtain optimum conditions in decreased levels of Cr content. Variable for ozonation process included of ozonation time (X1), pH (X2) and ozone gas flow rate (X3). The results showed that the effectiveness of ozonation treatment increase at lower pH. The high value of correlation (R2 = 0.93767) indicated that a high correlation values between the experimental and prediction data. The optimum conditions for Cr degradation at 30 minutes of ozonation treatment, pH 2 and ozone gas flow rate of 3 L min-1, with the lowest contentration of Cr was 1.92 ppm.
Sintesis Carboxymethyl Konjac-Glucomannan (CM-KGM) dari Tepung Porang: Pengaruh Media dan Suhu Karboksimetilasi terhadap Nilai Derajat Substitusi Sperisa Distantina; Amellia Setyani Putrie; Inas Novianti
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
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To increase the solubility of porang flour or konjac flour, the konjac flour was modified chemically into carboxymethylation konjac-glucomannan (CM-KGM). CM-KGM was prepared by alkalization of konjac flour using sodium hydroxide for 30 minutes at 30oC. After then, product alkalization was carboxymeted using sodium monochloroacetic (Na-MCA) with ratio 1:1 gram flour/NA-MCA. The aims of this research were to study the effect of concentration ethanol as the solvent media (50% ethanol and 90% ethanol) and temperature (45-50oC dan 65-70oC) to the rate of degrees of substitution (DS) formation in carboxymethylation step. Based on the data, the highest DS was attained by carboxymethylation using media solvent 90% ethanol, time of carboxymethylation 150 minute and temperature carboxymethylation 45-50C. The relationship between temperature and reaction constant (k) follows      k = 0,3082 exp (-15.227,8064/8,314T )
Synthesis of Salacca Peel Based Activated Carbons Using Microwave Induced ZnCl2 Activation Arenst Andreas; Jessica Atin; Christiandi Arifin; Hans Kristianto
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
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In this research, snake fruit (salacca) peel based activated carbons were prepared by ZnCl2 activation using microwave heating method. By using microwave heating, it is expected that the energy consumption in the activation process will be more efficient than that obtained by conventional heating. The effects of mass ratio of snake fruit peel to ZnCl2 (1:2 and 1:4), microwave power (130 watt, 230 watt, 380 watt, 540 watt, and 700 watt), and microwave radiation time (5, 15, 20, and 25 minutes) on the characteristics of activated carbons were investigated in detail. Activated carbons with BET surface area of 1796 m2/g were obtained at mass ratio of snake fruit peel to ZnCl2 of 1:4, microwave power of 540 watt, and 25 minutes of radiation time. Activated carbons were then used for adsorption of Cu(II) metal ions with initial concentration variations of 100, 150, 200, 250, and 300 ppm. Isotherm models used were Langmuir and Freundlich. From adsorption process, it was found that Langmuir model fitted experiment data well, with maximum adsorption capacity of 1262.62 mg Cu2+/g activated carbons. Kinetic model that were studied were pseudo first order, pseudo second order, and intraparticle diffusion mechanism. It was found that kinetic data followed well the pseudo second order model.

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