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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 EMULSIFIER TERHADAP STABILITAS EMULSI SALAD DRESSING BERBAHAN MINYAK JAGUNG Ery Fatarina; Rudi Firyanto; Sri Mulyaningsih; Hilda Nur P
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Corn oil is a food that quite known, but it’s still not optimal. Salad Dressing is one of food product that makeby homoginezer process from oil and water. Emulsifier should be added to keep emultion system stability sothat it not easy for oil and water to be sparated. The experimental aim to find natural emulsfier effect (egg) tosalad dressing emultion satbility and find the product specification that has been made. This experimentconducted by mixing corn oil and lime juice water with a ratio of 250 ml : 25 ml with homoginezer’s duration1,2 and 3 minute, emulsifier’s volume 10,20 and 30 ml, and homoginezer’s velocity 9000, 12000 and 15000rpm. The variabels that has been looked are viscosity, density, also surface tension. The optimal result ofemulsifier volume is 28.2669 ml, homoginezer’s velocity is 9000,14 rpm and homoginezer’s duration 2.9987minute. The optimal equal to viscosities respond (Cp) = -1,20767 + 0,64850 x A + 4,38333E-4 x B +0,02250 x C, the equal respon for dencities respond (g/cm3) =+ 0.76749+7.08125E-3 x A-3.125E-6xB+6.875E-4 x C and the optimal equal to tension respond (N/m)=0.28453-5.0675E-3 xA-1.55E-6 x B+1E-4x C. The salad dressing product with specification pH 4-5, viscosity between 17.85 Nm-2s-1 - 66.76 Nm-2s-1,and surface tension between 0.0942 to 0.1954 N / m. Thus, salad dressing with basic material of Corn Oilhas a good quality.
Solid Biofuel dari Campuran Tongkol Jagung dan Tempurung Kelapa dengan Metode Hydrothermalsebagai Substituen Energi dalam Upaya Reduksi Sampah Pertanian C. Chika Oktalia Putri; Britania Dewi Clarasinta; Ahmad Tawfiequrrahman
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Hydrothermal treatment is a thermochemical process that using subcritical water for converting biomass to produce high calorific biofuel. In this method, water actsas reactant, as well as medium of reaction. Experiments was conducted in temperature range of 200-270°C, holding time of 20-40 minutes, biomasswater ratio from 1:7.5 to 1:15 at various composition of coconut shell-corn cob. Based on experimental results, it was found that higher calorific value biofuels produced from treatments with higher temperature since more biomass was decomposed into more carbonaceous products. In addition, longer holding time also raised calorific value due to more complete decomposition. It was also indicated that increasing amount of biomass of the feed raised the calorific value of product. The highest calorific value of product of 5,12 kcal/kg was obtained from the treatment of 270°C, holding time of 30 minutes, biomass-water ratio of 1:10 at the coconut shell-corn cob ratio of 1:1
Penyediaan Katalis Cu/ZnO/Al 2 O 3 untuk Katalis Sintesis-Langsung DME Suryanet Sari Dewi; Aisyah Ardy; Herri Susanto
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Direct synthesis of dimethyl eter (DME) using Cu-based catalyst was studied with varying amounts of Zn for methanol synthesis, and Al2O3 as a component for methanol dehydration. Catalyst was prepared using two methods, i.e. the sol gel co-precipitation and the co-precipitation. Mass ratio of (Cu + Zn) to Al2O3 was held constant of 2. The characterization test indicated that co-precipitation catalyst had a better mechanical strength than sol-gel catalyst.Characteristic analysis (BET, XRD, SEM, and AAS) and activity tests (at 220oC). The sol gel co-precipitation method consisted of a higher portion of crystals 61.1%, while the coprecipitation catalyst had 21.8% crystals.However,the solgelco-precipitation had the smallest surface area of the catalyst 47.8m^2/g, while the co-precipitation had 114 m2/g. From the results of SEM analysis showed that almost all of catalyst texture contained amorf (50-70%) than crystal (20-40%). Catalyst CZA1 contained many amorf (78.2%) than crystal (21.8%), and this is match from XRD analysis. The amount of ZnO contained in catalyst (from the analysis of AAS) is quite far away from the target, this is due to lack of time aging in metal forming ZnO. Aging 6 hours enough for formation of crystal ZnO, but give a smallest surface area (20.4 m^2 /g). Co-precipitation method with aging 2 hours tested its activity in the synthesis of DME varied the active phase and promoter. CZA2 provide the best catalyst activity in the test activation and catalytic reduction process. CO convertion was 16% by CZA2 catalyst at 220oC and 1 bar.
Makalah Utama 2 Editor Prosiding sntkk 2017
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Makalah Utama 2
Analisis Proksimat Berbagai Jenis Kacang-kacangan yang Tumbuh di Pulau Timor-NTT Dhanang Puspita; Sarlina Palimbong; Nathania Liantari Pratamaningtyas; Kristiawan Prasetyo Agung Nugroho
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Almost throughout Indonesia, bean/legume plants can grow well. In the province of East Nusa Tenggara,Timor island there are many local beans that grow wild or cultivated. Local beans in the island of Timor,mostly processed into jagung bose (traditional meal made from corn) . Not much variety of food types basedon local beans. This study aims to identify the nutritional value of local beans in the island of Timor. Themethod used is by measuring the content of proteins, carbohydrates and fats. From the analysis of theresults obtained, the beans with the highest protein are arbila merah (18.55%), the highest carbohydratesare arbila biji besar (76.16%), and the highest fat are arbila biji loreng (1.85%). The results of this analyzecould be a recommendation in the processing of beans-based food to increase the added value andcommunity nutrition.
Gasifikasi Cangkang Sawit dalam Updraft Fixed Bed Gasifier: Pengukuran Laju Gasifikasi Spesifik Renardi Andhika; Herri Susanto
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Gasification is process conversion solid material into fuel gas. This study were carried on updraft fixed bedgasifier. Commercial application for updraft gasifier is used in Asphalt Mixing Plant at Ngawi with thecapacity 1 ton/hour. Palm shell was used as feedstock in this study with air as gasifying agent. Feedingconducted as batch and intermittent (0.5 kg every 12 minute in certain time). Gasification process alsoproduced an undesirable product called tar. The analysis of tar measurement and gas composition wasperformed by impinger bottle method and GC-TCD respectively. Gasification performance observed includesflare ignition, temperature progress, tar quantity, and specific gasification rate. Biomass with high moisturecontent produces producer gases that will be difficult to burnt because producer gases carried moisturecontent from biomass. Flare ignition on biomass with moisture content 7,01% would be slower 2 minutesthan moisture content 4%. Flammable producer gases when net calorific value more than 3500 kJ/Nm3.Temperature progress with intermittent feeding increase faster than batch feeding. However, temperaturprogress decreases when biomass was fed into the reactor. Tar content with high temperature on intermittentfeeding (4.8 mg/Nm3) was smaller than batch feeding (14 mg/Nm3). In this study, spesific gasification rate(SGR) about 47.7 - 65.4 kg/m2h.
Adsorpsi Zat Warna Direct Black 38 Menggunakan Kitosan Hidrogel Zainal Arifin; Muh. Kasim; Yoga Irawan
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

The dye widely used in sarung samarinda textile dyeing is direct black 38 (DB 38). A batch system applied tostudy the adsorption of DB 38 from aqueous solutions by chitosan hydrogel beads as adsorbent. The ioniccross-linking reagent sodium tripolyphosphate (STTP) used to obtain more rigid chitosan beads. The effectsof contact time and adsorbent dose were evaluated. DB 38 and adsorbent inserted into flasks and wereshaked at 150 rpm using an electric shaker at room temperature. Samples were filtered and analyzed using aUV-Vis at a wavelength of 505.7 nm to determine the concentration of DB 38. The results showed thatchitosan produced in a spherical shape and diameter of 3 mm. The beads observed solid, rigid, white milk,not sticky and has water content of 96%. The use of chitosan hydrogel dose of 0,34 g (dry based) and contacttime of 360 minutes can removal of DB 38 up to 92,42%. The maximum adsorption capacity is 4,93 mg/g,which followed Freundlich model.
The Influence of Glyserol as Plasticizer in Physical Properties of Bioplastic from Bread Fruit Starch Lulu Nurdini I; Dini Holipah; Rida Magfira Maulidina
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
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The main aim of this study was to identify the influence of plastisizer and the potensial use of bread fruit starch, Artocarpus altilis, as the raw material for synthesis of bioplastic film. Chitosan was added to make bioplastic more elastic. Film was cast from heated bread fruit starch (5 g), chitosan solution (in 0,5 ml acetic acid solution in 50 ml aquadest) and glycerol (0,3 ml, 04 ml, 0,5 ml, 0,6 ml, 0,7 ml) at 740C and stired well at 160 rpm until gelatinisation formed. Physical properties of bioplastic was characterised. The result showed that tensile strenght of bioplastic was 1,667 kgf/mm2(0,3 ml glycerol) higher than the other variation of glycerol and the percent of elongation was 4,923%. The biodegradability test for 8 weeks showed bioplastic degraded naturally
PENGARUH DENSITAS MINYAK BUMI TERHADAP OIL LOSSES PADA PENCAMPURAN MINYAK BUMI DI LAPANGAN ‘X’ SUMATRA SELATAN Hariyadi Hariyadi; Dedy Kristanto
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Field experience shows that, when two or more oils have different densities mixtures and transported throughthe pipeline at the same time, the mixtures will form a new characteristics of oils that different than oilsinitially, then the volume of the oil mixture is delivered from the SP ( Gathering Station), as the transferpoint, the volume will be different on the tank received. Differences between the sending and receiving ofthese so-called oil losses. One factor is the shrinkage volume of oil that caused the process of mixing two ormore of oils which have different characteristics in the pipeline or tank .Laboratory testing use to calculateshrinkage of oil, but the other use the American Petroleum Institute method.In a case study conducted in theoil field 'X' in South Sumatra there are some groups that have different characteristics of petroleum, andfrom laboratory experiments and mathematical calculations showed that the shrinkage in the Group 1 isequal to 0.115% or 2.386 BOPD, shrinkage in the Group 2 is equal to 0131% or 3.931 BOPD. The amountof shrinkage in Group 3 of 0.476% which is equivalent to 6.748 BOPD and for Group 4 seen that shrinkageof this group amounted to 0.189% or 2.082 BOPD and shrinkage for Group 5 amounted to 5% or 38.507BOPD. While the total shrinkage in the network system from upstream to downstream (group 1- 5) isapproximately 0.257%, or approximately 54.37 BPOD
Produksi Glukosamin melalui Hidrolisis Kitosan Menggunakan Irradiasi Microwave Nur Rokhati; Titik Istirokhatun; Reisa Novita Marpaung; Ananda Dwi Utomo
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Glucosamine (2-amino-2-deoxy-glucose) is an amino-monosaccharide from chitosan, which has many usesin the field of health, especially for the joints, bones, and teeth. Glucosamine can be obtained by the completehydrolysis of chitosan. The influence of microwave irradiation on the chitosan hydrolysis with catalyzed byhydrochloric acid was studied. The hydrolyzed chitosan was characterized by reducing sugar measurement,and FT-IR analysis. The results were compared between hydrolysis using conventional heating andmicrowave irradiation. Microwave irradiation can increase the reaction rate of glucosamine formation.Under the condition of microwave irradiation, the yield of glucosamine is 72.67% after 20 min hydrolysis.While to obtain yield glucosamine 70% required 2 hours for hydrolysis using conventional heating.Chemical structure by FTIR and the reducing sugar content of the glucosamine produced not different withthe glucosamine purchased from Sigma-Aldrich.

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