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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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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
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

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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Abstract

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.
Studi Kinetika Hidrolisis Enzimatik Pati Singkong: Pengaruh Perbandingan Alfa-Amilase dan Glukoamilase Terhadap Gula Reduksi Hargono Hargono; Andri Cahyo Kumoro; Bakti Jos
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2018: PROSIDING SNTKK 2018
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Ekstrak Daun Erpa (Aerva sanguinolenta) sebagai Pewarna Alami pada Kain Batik Febrian Ardi Pramuditya; Ayu Jamilatulhumairah Noor; Tutik Muji Setyaningrum; Siswanti Siswanti
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Until now, the use of natural dyes for coloring textiles continues to increase, so the search for natural dye sources need to be improved. Erpa leaf (Aerva sanguinolenta) contain natural dyes that have the potential to be used as a textile dye. This study aims to determine the optimum extraction conditions Erpa leaves and calculate the mass transfer coefficient will then be applied and tested on the fabric. The parameters studied were extraction temperature, the ratio of leaf with a solvent, application and test on the fabric. extraction is done at 30oC, 40oC, 50oC, 60oC and 70oC. Variations in the use of leaf Erpa was 5, 10, 15, 20 and 25 grams with 350 ml of solvent. The results showed the optimum conditions for the extraction of leaves Erpa at 70 ° C with a ratio of weight and volume 25 g / 350 ml of ethanol with the mass transfer coefficient obtained 25,29 x10- 3 l / min. The effect of sunlight on the durability of the color gets the number 2 and the leaching effect on the durability of the colors got number 3.
Desain dan Optimasi Distilasi Ekstraktif Tetrahidrofuran-Etanol Menggunakan Etilen Glikol sebagai Pelarut Nanette Litya; Juan Christoper; Herry Santoso; Yansen Hartanto
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2018: PROSIDING SNTKK 2018
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Penggunaan Mordan Akhir Terusi terhadap Hasil Celupan Kain Batik dengan Ekstrak Kayu Secang Dwi Suheryanto
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Batik cloth color durability is a prerequisite for improving the competitiveness of the product, as the number of consumer complaints on the subject. How many treatments that can be done to address and improve fastness, is to perform the process of perfecting the end of the fabric that has been dyed using the final mordant materials, namely “terusi” or cupric sulfate (CuSO4) .5H2O. The use of extracts of the wooden cup on a batik cloth, batik cloth produces the erosion resistance value is low, so it is rarely used in the singular in batik dyeing, but mixed with wood extract Cleaner or other materials, but the results did not show its true colors. The purpose of this activity is to improve the quality of batik cloth with increased power results dye color fastness. The materials used, namely cotton fabric primisima, silk fabric T56, wax batik, wood shavings cup, alum, and cupric sulfate, as for the procedure include, extract manufacture wooden cup (1:8), mordant early cotton cloth with alum, batik dyeing with extract solution wooden cup, then made the final refinement using variation cupric sulfate concentration, that is 15 g/l, 20 g/l, and 25 g/l, wax removing, and test color fastness. From the results of the test color fastness to washing, good value at terusi concentration of 25 g / l is 4-5, with a strong color intensity values (the most powerful), the wave had a value of 26 with a length of 0.6637.
Sintesa dan Karakterisasi Biokomposit Poly(L-Lactid Acid)/Cellulose Acetate dan Aplikasinya sebagai Adsorben Bead Nugrahaning Dwi Prastiwi; Eko Vindy Utami; Hikmatun Ni’mah; Eva Oktavia Ningrum
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Biocomposite materials comprised of poly(L-lactic acid) (PLLA) and cellulose acetate (CA) were preparedthrough solvent blending technique. The obtained biocomposite films were characterized by using dynamicmechanical analysis (DMA) and thermogravimetric analysis (TGA). The biocomposites were then applied asadsorbent bead for dye separation. The properties and adsorption performance of the biocomposite beadswere also observed in term of morphology, surface area and adsorption capacity. The composition ofPLLA/CA in weight ratio was varied: 100/0; 75/25; 50/50; 25/75; 0/100. The dye used in this research foradsorption analysis was methylene blue (MB). The MB adsorption was done in two pH conditions which areneutral and base (pH=10) conditions. The mechanical properties of biocomposites PLLA/CA films showedthe slightly decrease in tensile strength after the addition of CA until 50 wt% and then increased again forhigher CA content. However, the young modulus continuously increased with CA content. The elongation atbreak of biocomposite PLLA/CA films showed higher value of elongation at break compared to the pristinePLLA and CA. On the other hand, the thermal stability of biocomposites increased with the increasing of CAcontent compared to that of pristine PLLA. The increase in thermal stability was caused by the specificproperty of CA which is high thermal resistant. For its application, the beads could only be obtained fromthe biocomposite with higher CA composition, PLLA/CA (25/75) and (0/100). The morphology of PLLA/CAbeads showed spherical shape with porous structure on their surface. Adsorption performance measurementshowed that the adsorption capacity and % removal of the PLLA/CA (25/75) bead increase compared to thepure CA bead.

Page 28 of 59 | Total Record : 588

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