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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
Kajian Pengaruh Ukuran Penambat Pada Fermentasi Etanol Secara Continue dengan Batu Apung Sebagai Media Penambat Pada Fermentor Kolom Fixed Bed Ronny Kurniawan; S.Juhanda S.Juhanda; Hany Figurhawa; Muhhamad Gandi
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Ethanol production is increasing every year due to the great need. Ethanol is widely used as chemicalsynthesis ingredient, as a solvent and can be used as a fuel mixture of gasoline, there by ethanol become analternative renewable fuel. Difficulties often encountered in the fermentation process, namely the separationof the product of yeast used. Tethered cell method (immobilized cell) may be one method that can be used asan alternative, and pumice can be used as an immobilized media. The purpose of this study was todetermine ethanol concentration and value of ethanol yield in the continues fermentation process usingcoloumn fixed bed fermenters with pumice as an immobilized cell media and comparing with free cellcondition. The parameters in this study is glucose concentration of 150 g / L with a temperature of 34 ° C,pH 4.5, substrat flow rate of 0,555 mL/min , pumice height is 50% fermentor height, and the number of cellsthat is tethered. While the variable in this study include the condition of the cell that is free and immobilized ,pumice size with mesh 6/8 and mesh 16/18 . Results obtained with the best conditions on a continuousethanol fermentation in a fixed bed column was obtained on condition of immobilized cells with a pumice sizemesh 16/18 with ethanol consentrasion of 61.8 % v/ v, the value of ethanol yield at 23,22% w / w and theaverage percentage of cells that escape 0.213%.
Pemanfaatan Sekam Padi sebagai Katalis Zeolit ZSM-5 Mesopori melalui Metode Sintesa Double dan Bebas Template untuk Konversi Metanol Fusia Mirda Yanti; Sumbogo Murti SD; Yuni K. Krisnandi; Adiarso .
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Rice husk is an abundantly available agricultural waste material containing maximum amount of siliceousash. Burning of rice husk in air produces rice husk ash containing 85-98 % silica. In this research, rice huskash and coal fly ash were used as raw materials for catalyst of ZSM-5 zeolite synthesis. Coal Fly ash wasadded to adjust the source of alumina. ZSM-5 zeolite was synthesized through hydrothermal treatment usingdouble templates (TPAOH and PDDA) and free template. The as-synthesized ZSM-5 was then characterizedusing FTIR, XRD, SEM-EDX, and BET. From the result of characterization, ZSM-5 has been success to besynthesized from rice husk ash. After ZSM-5 was synthesized, the catalytic activities of ZSM-5 were tested toconvert methane to methanol. The result showed that catalytic activity of ZSM-5 double template onmethanol convertion was 7.08 % and free template was 10.54 %. It means, rice husk ash was potential to beused as catalyst for the conversion of methane to methanol.
The Optimization of UV/H 2 O Process for DYA (Dianic Yellow Ace) Textile-Dye Wastewater Treatment Tedi Hudaya; Geoffery Hariyanto; Winda Andriany
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

West Java region, especially in Bandung area, has many textile dyeing industries which are usually placed in a densely populated area. If not properly handled, the wastewater effluents will cause considerable pollution problems to the surrounding water streams due to toxic and non-biodegradable synthetic dyes content characterized by a very low BOD5/COD ratio (< 0.1).  This research studied the application of UV/H2O2 method for treating textile-dye (Dianic Yellow Ace – DYA) waste water in a pilot scale (50 L) multi-lamp bubble column photoreactor. The prime target of the treatment was to increase the BOD5/COD ratio until the biodegradability threshold was reached (> 0.1), prior to further treatment by a cheaper conventional biological method.  Two major operating conditions, the initial H2O2 concentration and pH were varied, using Central Composite Design, between 0.026 – 0.874 % w/w, and 0.17 – 5.83, respectively.  This study used a synthetic wastewater with color content similar to a  real waste water from a textile dyeing industry in Bandung.  Within the experimental condition range, 51 – 94% color content was successfully eliminated within 6 hours illumination period using 3 x 75 Watt low pressure Hg UV lamp.  Optimum conditions from 2nd order model optimization showed that the best result of 95.5% color removal could be obtained at initial H2O2 concentration of 0.53 % w/w and pH 3.35. Additional test with a real industrial wastewater under 5 x 75 Watt UV irradiation under those best conditions resulted in BOD5/COD ratio increase from 0.01 to 0.1(biodegradability threshold) within 9.5 hours.  
Pengaruh Temperatur Anil terhadap Sifat Elektrokimia Lantanum Pentanikel (LaNi5) dengan Penambahan Serium Oksida (CeO2) Ade Utami Hapsari; Jarot Raharjo; Yelvia Deni
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Annealing is one of the processes to increase capacity, discharge rate, and cycle life for anode AB5 type alloymaterial. Increasing the annealing temperature will increase capacity and homogenize material. This makesthe material more corrosion resistant and resistant to degradation during the process of absorption ordesorption of hydrogen atoms in the electrolyte solution. The study was conducted to see the characterizationof powders anode materials LaNi5 after the addition of 1% CeO2 and annealed at 300, 600, and 900°C for 6hours in an argon gas environment. The powders were characterized using XRD and SEM-EDX.Electrochemical testing is measured by using Electrochemical Impedance Spectroscopy (EIS) at a frequencyof 5 mHz - 100 kHz. Increasing anneal temperature changes the diffraction phase, decreasing conductivityand increasing the resistance value. Semicircle pattern of LaNi5 anode material with the addition of 1%CeO2 conducted annealing process shows the semicircle pattern with a radius of the arc increases. Thisindicates the magnitude of the resistance barrier material.
Pengolahan Limbah Cair Industri Migas dengan Adsorpsi Pada Kolom Fixed – Bed Kartika Udyani; Cahyadi Marta Pamungkas; Ticha Maharani
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Petroleum processing industry activities generate wastewater containing phenol. If the effluent directly released into the environment will cause environmental pollution. This study aims to determine the effect of flow rate and height of bed to the reduction in the phenol content in wastewater oil and gas industry by using activated carbon adsorbent in a fixed-bed column. The study begins with the pre-treatment of wastewater by aeration to separate the oil content in the waste water. Furthermore sewage flowed into a fixed-bed column at various flow rates and high bed. Effluent from each - each variation of measured and calculated% concentration phenol removal. The results showed that the reduction in flow rate increases the amount of phenol is absorbed. For the high bed 25%, 50% and 75% of the fixed-bed column height, the higher the bed the higher the amount of phenol is absorbed. Best results are obtained on a high bed 75% and a flow rate of 0.8 mL / sec with% phenol removal amounted to 98.99%  
Curcurmin Micronization from Temulawak (Curcuma Xanthorrhiza) Extract Using Supercritical Co2 as Anti-Solvent Sugeng Winardi; Trifena Widyasari Christy; Shinta Showiantari; Sarah Duta Lestari; Siti Machmudah; Kusdianto Kusdianto
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

The aim of this study is to compose curcumin microparticle from temulawak extract (curcuma xanthorrhiza) using SAS (Supercritical Anti-Solvent) method with supercritical CO2. Curcumin is made from temulawak extract that insoluble in water. One of method to increase solubility of curcumin in water is decrease particle size. SAS method is being chosen using supercritical CO2 as anti-solvent because temulawak is perfectly soluble in supercritical CO2. Micronization is performed inside precipitator equipped with filter at the bottom. Temperature is being operated in 35 and 40 oC, and in pressure 8 and 10 MPa. Flow rate ratio supercritical CO2 to solution is 15;0,25 and 15;0,30 mL/min. The results show significant effect of pressure and ratio flow rate Supercritical CO2 to solution on the morphology of micronized curcumin particles. The suitable conditions for curcumin micronization in this work were found to be at 8 MPa, 35 oC and flow rate ratio CO2 to solution is 15;0,25 mL/min.The Supercritical Anti-Solvent (SAS) method could be employed for the micronization curcumin particles. Moreover, the dissolution rate curcumin particles using SAS is higher than unprocessed curcumin particles.
ptimasi Proses Pengolahan Bambu Petung menggunakan Ekstrak Nabati dan Kimia Dwi Suheryanto
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Bamboo construction industry is very significant contribution to the foreign exchange and employment. Their products in addition to meet the needs of the local market, also exported to foreign countries. Problems are often found in industrial products produced bamboo is susceptible to damage from destructive insects, so it will degrade the quality of the product. The main material used is petung bamboo (Dendrocalamus asper), and substance use preservatives clicking processing plant leaf extract babadotan (Ageratum conyzoides Linn) and neem (Azadirachta indica A. Juss), as well as chemical preservatives borax-boric ( 2: 3). The purpose of this research is to improve the quality petung against destructive insects. The activities include, sample test, manufacture extract solution preservative plant from leaf babadotan, and neem by extraction with a ratio of 1::8, then boiled until the solution of the remaining 50%, the concentration of the use of 1:1, while the borax-boric ratio (2:3) using 50 g / l. Processing is done by boiling for 2 hours  and 4 hours, then the test sample testing moisture content, retention of preservative, and the value  of damage.The results of the observation showed initial moisture content petung average of 28.96%, the value of the optimal retention of borax-boric preservative occurs at boiling for 4 hours, that’s is 0.3693 g / cm3, using a solution of babadotan and neem leaf extract, respectively each of 0.117 g / cm3 and 0.109 g / cm3, under these conditions showed no damage petung against destructive insects.
Improvement on Diesel Conversion of HydroDeOxygenation Nyamplung Oil by Multi Stage H2 Joni Prasetyo; Galuh Wirama Murti; Sumbogo Murti SD; Adiarso .; Gina Taspiah; Yulianti Christina; Fadlillah Akbar
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Nyamplung (Calophyllum inophyllum L.) has a high survival potency in wide variety environment, fruitingall year round and easy regeneration. Nyamplung oil is the most suitable raw material as feedstock of biofuelbecause of its high yield of the seeds and in utilization not compete with food interests. Utilization nyamplungoil for Green Diesel through two basic stages, processing into Pure Plant Oil (PPO) and PPO upgradinginto Green Diesel. PPO upgrading with target Green Diesel further divided into two stages:Hydrodeoxygenation (HDO) and isomerization. In this preliminary study, PPO upgrading is only carried outby HDO only using NiMo catalyst. HDO is done in batch processes to identify the characteristics of theprocess at a temperature of 300oC, bar and the 5% catalyst. Meanwhile, to increase the nyamplung oilconversion into diesel, then the multi-stage Hydrogen (H2) was done in the process. Stage number of H2inserting is the major parameter in this HDO process. In the multi-stage H2: 1 times, 2 times and 4 times intothe reactor. Multi-stage H2 is done by replacing the H2 gas into the reactor, after a process gas frompreviously discarded. Carboxilation and carbonilation occurs in HDO process. By multi-stage H2, it showedan increasing yield of diesel conversion. From 1x stage H2 inserting to 2x and 4x stages of H2, it improve theyield from 0.32% to 0.76% and to 1.3%. This shows that the yield HDO is determined largely by theeffectiveness of H2 and PPO contact with the catalyst therein. Unfortunately, this condition is very difficult tobe achieved at a high pressure batch reactor. Further testing is doing HDO in a continuous reactor andobtained the conversion reached a yield of 50.48%.
Pengaruh pH Terhadap BOD, TSS, Dan VFA Pada Pengolahan LindiDalam Bioreaktor Anaerobik Abdul Kahar; Megahapsari Martaningtyas; Budi nining widiarti; ika Meicahayanti
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Leachate is a liquid waste resulted from physical, biological and chemical decomposition of landfill waste. Leachate contains complex dissolved organic and anorganic substrate which are biodegradable and nonbiodegradable.Anaerobictreatmentprincipallyutilizesanaerobicbacteriainordertodegradethedissolvedorganicsubstance. Anaerobic treatment is very sensitive towards the substrate cocentration and pH. The objective of this research is to decide the pH effect on the BOD, TSS and VFA at leachate treatment in anaerobic bioreactor. This research used anaerobic bioreactor with the volume of 160 L. Anaerobic treatment carried out for 21 days, at pH ambient, 7.2 and 8.0. Microorganisms used comes from cow rumen and leachate with a ratio of 1:3 and filtered to take the extract. Collecting data and BOD, TSS and VFA analysis were done every two days. The results showed that the pH effect to the decrease BOD, TSS, and VFA at leachate treatment in anaerobic bioreactor. Anaerobic bioreactor performance optimum at pH 7.2, with the reduction of BOD and TSS was 80.29% and 74.08% respectively,andthe range of VFA productionwas 91.15-185.25 mg/L.  
Penentuan Chemicals Kritis pada Industri Migas Menggunakan Analisis ABC (Studi Kasus pada Petro China Internatioal Jabung Ltd.) Eka Febriani; Nur Indrianti
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
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Chemicals are key supporting items for production processes in the oil and gas industry. One of the strategies to control the supply of the chemicals is identifying them based on their critical level. This study deals with the identification of critical chemicals in a private oil and gas company. Currently there are 47 chemicals that are declared by the company as critical items. The company determined critical itemsmainly based on theirdemand. In this study we identified the critical level of the chemicals using ABC analysis. We used the last five-year data and considered the total inventory costs of each item. The study shows different result from the one that is currently done by the company. The analysis indicates that there are 14 chemicals that are classified as critical items. The result of the study can be used as the basis for the company to control the inventory of the critical chemicals. In addition to inventory costs, future study can be done to develop method for classifying critical itemsby taking into accountmultiple criteria such as expired date, ordering lot size, and delivery time of the materials.

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