cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kab. sleman,
Daerah istimewa yogyakarta
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 521 Documents
 1   2   3   4   5 
Penggunaan Natrium Silikat pada Proses Pelorodan Batik Terhadap Pelepasan Lilin dan Kekuatan Tarik Kain Dwi Suheryanto
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2015: Prosiding SNTKK 2015
Publisher : Seminar Nasional Teknik Kimia Kejuangan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Wax removing batik cloth with synthetic dye can use starch, soda ash, and a mixture of both. The use of cassava starch perfection to release wax batik less than the maximum, medium soda ash will reduce the intensity of the color. The purpose of this study was to determine the extent of the effect of the use of sodium silicate in the process of batik wax removing percentage of the wax off and tensile strength fabric. As the research object, using a type of cotton fabric primisima with canting seal, then dyed with napthol dyestuff, then removing. Variations in the concentration of sodium silicate in the process wax removing is 1, 2, 3, and 4 g/l, respectively, at a temperature of 80-90 ° C. The result of the study showed, that the use of sodium silicate concentrations were increased until the optimal limit a reduction in the strength of the fabric, both warp and weft direction. Medium weight percentage wax-similar results regardless show, which increased with increasing concentrations of sodium silicate is used. From the results of the analysis revealed that there was no significant difference in tensile strength test and wax off against the use of sodium silicate concentration on wax removing process. Economical to use, sodium silicate with a concentration of 1 g/l is recommended for use in the process of batik cloth wax removing cotton, wax off result percentage 97.686%, a decrease in the tensile strength of the warp direction by 0.46%, 0.66% feed direction, a decrease in intensity color 4%, the cost of production of cloth per sheet IRD 4,650.
Kinetics Study of Fe Content Decrease In Well Water With Activated Carbon Adsorption Of Coffee Waste Adi Prima Rizki
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2015: Prosiding SNTKK 2015
Publisher : Seminar Nasional Teknik Kimia Kejuangan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Water wells that contain iron will cause harm to living organisms, especially humans. Experiment of Fe adsorption on well water using activated carbon. On the experiment, coffee waste used as materials for making charcoal, activated charcoal is subsequently used to reduce Fe. Adsorption of Fe at 400 rpm achieved optimum contact time of 20 minutes. While at 500 rpm achieve optimum value at 15 min and 600 rpm achieve optimum at 25 minutes. Isothermal adsorption model is isothermal Langmuir with R2 for 400 rpm and 500 rpm are 0,999 and for 600 rpm is 0.996. Langmuir equation shows the rate of 400 rpm has the best adsorption capability with a value is 1,267. Fe adsorption with activated charcoal from coffee waste at a rate of 400 rpm to adequate the kinetics model of order 0, whereas the rate of 500 and 600 rpm adequate the second-order kinetic.
Kinetika Reduksi Isotermal CuO/ZnO dalam Penyiapan Katalis untuk Sintesis Metanol Hendriyana Hendriyana
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2015: Prosiding SNTKK 2015
Publisher : Seminar Nasional Teknik Kimia Kejuangan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Catalyst Cu/ZnO for methanol synthesis was prepared using coprecipitation method, then followed with calcination at 350oC for 1 hour to obtain CuO/ZnO with a molar ratio of 50:50. Afterward, two gram of CuO/ZnO was treated for reduction to to Cu/ZnO with H2 with a flowrate of 120 mL.min-1 in a semi batch isothermal reactor. This reduction was carried out at temperatures of 170, 200, and 220oC. Since the highest rate of reduction were found at CuO conversions in the range of 30-40%, the kinetic of reduction of CuO/ZnO was represented using modified Prout-Tompkins model ( )n ( )m da / dt = k a +0,3 1-a . This model fit very well to our experimental data with activation energy in of about 25 kJ/mol, frequency factor of about 10 min-1, and m of about 1,1 and n of about 1,4.
Ekstraksi Tannin dari Daun Tanaman Putri Malu (Mimosa pudica) Novi Pralisa Putri
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2015: Prosiding SNTKK 2015
Publisher : Seminar Nasional Teknik Kimia Kejuangan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Putri malu(mimosa pudica) as a wild plant which has a tannin that useful to be a natural dye. To take the tannin from putri malu’s leaf, the extraction method with organic solvent can be used. The purpose of this research is to determine the initial concentration of putri malu. Before doing the extraction, the putri malu’s leaf must be dried first to reduce water in the leaf. Then, 5 mg putri malu’s leafis soaked in 350 mL ethanol 96% with variations of time and heated at constant temperature. After the extraction,analysis by spectrophotometry is used to get the tannin’s concentration dissolved in ethanol. After submersion, for 30 minutes the tannin’s concentration is 31,7 ppm, 60 minutes 31,9 ppm, 90 minutes 31,23 ppm, and 120 minutes 30,93 ppm. Based on the mathematic modeling, initially concentration is 32,1688 ppm.
The Effect of F:S Ratio, Temperature, Particle Diameter, and Mixing Speed in The Dispersive Contact Batch Extraction of Phaleria macrocarpa Fruit Using 70%-v Ethanol Solvent Susiana Prasetyo S
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2015: Prosiding SNTKK 2015
Publisher : Seminar Nasional Teknik Kimia Kejuangan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Phaleria macrocarpa is a native Indonesian plant from Papua, which has a high content of antioxidant and antimicrobial bioactive compounds. Therefore, it offers a very high potential to be utilized as the raw material for food preservative and supplement, as well as herbal medicine. This study was conducted for the development of the extraction and separation technology to obtain the useful bioactive compounds within a high quality extract from Phaleria macrocarpa fruit. Solid-liquid extraction was performed by dispersive contact using 70%-v ethanol in a 2 L batch extractor. The extraction process involved some variations of the process variables, namely F:S ratio (0.025 – 0.05 g/mL), temperature (28 - 52°C), particle effective diameter (0.22 – 0.90 cm), and mixing speed (140 – 400 rpm). The experimental series were carried out by using a Box-Behnken design with 3 center points, in order to comprehend both responses of yield oleoresin time profile and antioxidant activity (as DPPH equivalent). The experiments by varying those process variables could be used to estimate the volumetric mass transfer coefficient (kLa) using macroscopic balance based on a lumped model. The extraction optimum conditions were found at F:S ratio of 0.03 g/mL; temperature at 28°C; mixing speed 400 rpm; and particle diameter of 0.76 cm under which the highest yield of 94.56% , DPPH equivalent of 3.7364 μmol DPPH/mg crude extract, and mass transfer coefficient of 0.0192 s-1 were obtained.
Removal of Rhodamine-B From Aqueous Solution by Adsorption Onto Chitosan/Polymethylmetacryalte/Cloisite-10A Composites Eny Kusrini
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2015: Prosiding SNTKK 2015
Publisher : Seminar Nasional Teknik Kimia Kejuangan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The aim of this study was to investigate the use chitosan/polymethyl methacrylate/cloisite-10A (Chi/PMMA/Cloi) composites as an adsorbent for Rhodamine-B. The Chi/PMMA/Cloi composites were synthesized by solution induced intercalation method. The properties of the composites were investigated by using Fourier transform infrared spectroscopy (FTIR), and Scanning electron microscopy (SEM). The effects of polymethyl methacrylate (PMMA) loading and contact times on the adsorption process of Rhodamine-B were investigated. The results show that the adsorption capacity for the Rhodamine-B increased with increase in contact times but there was not significant change observed with respect to increase in PMMA loading. Abilities of Chi/PMMA/Cloi composites to adsorb rhodamine-B were higher than those found in the pristine of cloisite-10A, chitosan, and PMMA, respectively. The adsorption capacity of rhodamine-B from solution by using the composites was reached 89.20 – 91.58% with contact times from 40 - 120 min. The results indicate that the Chi/PMMA/Cloi composites can be used for the removal of rhodamine-B from aqueous solutions.
Utilization Of Polypropilene Glycol As Anti Foaming Agent On Evaporation Of Detergent Radioactive Liquid Waste Zainus Salimin
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2015: Prosiding SNTKK 2015
Publisher : Seminar Nasional Teknik Kimia Kejuangan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Utilization Of Polypropilene Glycol As Anti Foaming Agent On Evaporation Of Detergent Radioactive Liquid Waste. The treatment of radioactive liquid waste in Serpong nuclear facilities is performed by the sequences processes of reduction volume by evaporation and then immobilization of its radionuclides by cementation. The existing evaporator has the treatment capacity of 750 l/h of liquid waste. The nuclear laundry system for cleaning and decontamination of contaminated cloths generates the detergent radioactive liquid waste. The evaporation of detergent liquid waste at the present requires the silicone oil anti foaming agent to prevent the contamination of evaporation distillate caused of carry-over by the foam. For looking the utilization alternative of another anti foaming, the study of utilization of polypropylene glycol as anti foaming agent on the evaporation of detergent liquid radioactive waste has been performed. The evaporation experiment was performed for simulation liquid waste having the Cs-137 activity of 14,8 Bq/ml and dry extract content of 5 g/l by variation of the detergent concentration of 0,1247; 0,1496; 0,187; 0,374; 0,748; and 1,496 g/l. During evaporation, the boiling liquid level be kept by feeding of liquid waste and the generated foam attacks by polypropylene solution injection. Every 15 minutes the sampling of evaporation distillate and concentrate are done for analysis of its Cs-137 activity and extract contents. The result of experiment indicates that on the evaporation of solution containing detergent concentration of 0,1247 to 0,167 g/l gives the effective defoaming process in which the ulitization of polypropylene as antifoaming agent can prevent the contamination of distillate due to the foam can be eliminated properly. On the evaporation of solution on the detergent concentration of 0,374 to 1,496 g/l, the foam can be controlled there is small Cs- 137 contamination of distillate on the value of its clearance level. The evaporation of solution on the detergent concentration of superior than 1,496 g/l, the foam can not be controlled by utilization of antifoaming agent causing the significance value of distillate contamination. By utilization of polypropylene as antifoaming agent, the Cs-137 activity of distillate can be decreased on the value of clearance level. Normally the Cs-137 activity on the concentrate will increase but on its actually result there is decreasing of concentrate activity cause of the Cs-137 sorbtion capability of polypropylene glycol. Every of polypropylene glycol molecule has the functional group of OH on its furthest tip. When the polypropilene glycol molecule contacts with the water molecule so two H+ ions be released from polypropilene glycol forming the ions of – ORO-. The Cs+ on the solution will attached by –ORO- to form CsOROCs so the Cs concentration on the concentrate will decreased.
Refining Minyak Pelumas Bekas Dengan Proses Fisika-Kimia Mukhtar G
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2015: Prosiding SNTKK 2015
Publisher : Seminar Nasional Teknik Kimia Kejuangan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Waste lubricant oil classified as a hazardous and toxic materials (B3) which can caused an environmental pollution. Alternative solutions to solve this problem is recycling by refining with physical and chemical processs. The purpose of this this study is the characteristics of refined oil closed to fresh lubricant oil. This study used waste lubricant oil type of NG Lube-40.The process involves screening, evaporation, addition of acid, sedimentation, variations bleaching at 100 oC, oil and solids is separation and the addition of additive. The characteristics of NG Lube-40 based on ASTM method obtained density (15 °C) is 0,8886 g/cm3 and kinematic viscosity at 40°C and 100 °C are 128,2 and 13,5 cSt. The characteristics of waste lubricant obtained density (15 °C) is 0,8916 g/cm3; viscosity at 40 °C and 100 °C are 135,4 cSt and 14,0 cSt. The best bleaching results using three bleaching media between bentonite, bleaching earth and Calcium Oxide obtained the sample results changes color from black to light brown. By varying the addition of solvent, ratio value between volume of waste lubricant with solvent is 33: 1, obtained density (15 °C) is 0,8895 g/cm3 and kinematic viscosity at 40°C and 100 °C are 112,2 and 12,52 cSt. Mean while ratio value between volume of bleached oil with solvent is 40:1, obtained density (15 °C) is 0,8945 g/cm3 and kinematic viscosity at 40°C and 100 °C are 111,2 and 12,44 cSt. This study is still analysis the refined oil (for ratio value between volume of bleached oil with solvent is 100:1). Conclusion for now is the results of solvent addition with ratio 33:1 is closest to the fresh lubricant oil, but there was a decrease of ignition point from temperature 244 oC to 204 oC.
Pengolahan Batubara dan Pemanfaatannya untuk Energi Edy Nursanto
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2015: Prosiding SNTKK 2015
Publisher : Seminar Nasional Teknik Kimia Kejuangan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The processing of coal has conducted to removing impurities in coal. Stages remove impurities in coal that is preparation, concentration and dewatering. Preparation is reduction size of coal, concentration to remove of impurities, while dewatering to reduce of water content in coal after concentration process. Result ofcoal processing will use to energy as well as direct andconversion fuel. The development of Indonesian coal industry on lastyears have increased be in accordance with growth  of economic. In the future coal is utilization as an energy source that it will increase especially as a direct and conversion fuel. Direct coal fuel can use to power  generation, cement factory, home industry and domestic. In the other hand coal conversion fuel is convertedinto oil or liquefied coal, gas and carbonization.
Simulasi Pembuatan Etil Asetat Menggunakan ReactiveDividing Wall Column Dengan Katalis Asam Sulfat Johannes Martua Hutagalung
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2015: Prosiding SNTKK 2015
Publisher : Seminar Nasional Teknik Kimia Kejuangan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Reactive Dividing Wall Column (RDWC) is an innovation which integrate reaction and distillations into one unit. The purpose of this study aims to simulate both reboiler duty and distillate rate to obtain the purity of ethyl acetate, water, and acetic acid in the stream products usingAspen Plus simulation software. RadFrac modul is used to model vapor –liquid equilibrium in the column and NRTL model is used to calculate thermodynamic properties in the liquid and vapor phases. The model has been validated by comparing both temperature as well as product composition profiles to those of open literature. The simulation results show that varying the distillate rate (D) and reboiler duty (Qr) will affect the purity of distillate components (ethyl acetate), side product (water) and bottom component (acetic acid). Based on maximum purity ofethyl acetate, the operating conditions are respectively recommended at distillate rate of 74.902 mole/h and reboiler duty of 1.93 kW. The product compositions are 73.69 mol% ethyl acetate, 90.21 mol% water and 42.98 mol%acetic acid.

Page 3 of 53 | Total Record : 521

 1   2   3   4   5 

Filter by Year

2009 2023


Reset
Filter By Issues
All Issue 2023: PROSIDING SNTKK 2023 2020: PROSIDING SNTKK 2020 2019: PROSIDING SNTKK 2019 2018: PROSIDING SNTKK 2018 2017: PROSIDING SNTKK 2016: Prosiding SNTKK 2016 2015: Prosiding SNTKK 2015 2014: PROSIDING SNTKK 2014 2013: Prosiding SNTKK 2013 (Arsip) 2012: Prosiding SNTKK 2012 (Arsip) 2010: Prosiding SNTKK 2010 2009: Prosiding SNTKK 2009 More Issue