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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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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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Abstract

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.  
Optimasi Kondisi Operasi Ekstraksi Zat Warna Alami dari Daun Ketepeng (Terminalia Catappa) Menggunakan Response Surface Method Zakiah Awalia J S Dahlan; Edia Rahayuningsih; Ahmad Tawfiequrrahman
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2018: PROSIDING SNTKK 2018
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

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
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

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.
Synthesis of Palm Oil Based Nano Carbon Using Nebulized Spray Pyrolysis Nicolas Orlando; Windy Wilianti; Hans Kristianto; Arenst Andreas
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

In this experiment, nano carbon material was synthesized with nebulized spray pyrolysis method using palm oil. The catalyst used in this study was ferrocene with a concentration of 0.015 g/ml; 0,020 g/ml; and 0.025 g/ml. The catalyst was contacted with carbon precursors using floating catalyst method. The carrier gas used in this study was nitrogen gas at a rate of 1.21 sccm. Nebulized process was conducted for 30 minutes with an operating temperature of 650°C; 700°C; 750°C; 800°C; 850°C; and 900°C. In this study, nano carbon material was synthesized by deposition directly on the walls of the tube / stainless steel reactor so no need a substrate as a growth medium carbon nano. The characteristics of nano carbon material was analyzed by several methods, such as SEM, EDS and XRD. The XRD analysis of carbon sample synthesized at 0.025 g/ml catalyst and all variations of temperature showed the presence of the C (002) and C (100) peak indicated a graphitic structures. From SEM observation, it can be seen that the structure of carbon nano spheres were found at temperature of 700°C and mixtures of nanotubes and nanospheres were established at temperature above 800°C.
Optimasi Produksi Biohidrogen dari Palm Oil Mill Effluent dengan Metode Suppressing Mikroba Metanogenik pada Inokulum Kotoran Sapi Edwin Permana; Firdaus Juanda; Joni Prasetyo; S.D. Sumbogo Murti; Lince Muis
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2018: PROSIDING SNTKK 2018
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Ekstraksi Hidrotermal Senyawa Paradol dari Jahe Priyono Kusumo; Mohammad Endy Yulianto; Andi Nur Alamsyah
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Ginger contains a variety of active constituents. The active constituents of ginger are very diverse and varied.The diversity of the active constituents of ginger can depend on the type of ginger, ginger planting locationand circumstances of ginger (fresh or dried). One of the ginger active constituents that reported having somepharmacological activities is paradol. Several extraction methods have been carried out to obtain the activecompound of ginger, paradol. Hydrothermal extraction has gaining many interests from the researches due tothe unique properties of subcritical water used in the hydrothermal process. This research objective was tostudy the effect of extraction parameter process i.e. reaction temperature (1300C and 1400C) and time (10-40minutes). Hydrothermal extraction process carried out at a fix pressure of 2 bar. The research showed that thehydrothermal extraction process carried out at a fix pressure of 2 bar, a temperature of 1300C and extractiontime of 20 minutes was able to produce extracts with paradol content of 19%. The hydrothermal extractionprocess carried out at a temperature of 1300C, a pressure of 2 bar for 10 minutes can produce extractscontaining paradol of 16%, while the hydrothermal extraction process carried out at a temperature of 1300C,a pressure of 2 bar for 30 minutes is only able to produce extracts containing paradol of 6%.
Ekstraksi Limbah Serutan Kayu Matoa (Pometia pinnata) sebagai Zat Warna Alam pada Pewarnaan Kain Batik Serat Protein Agus Haerudin; Yudi Satria
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2018: PROSIDING SNTKK 2018
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Phytochemical analysis results showed that the extract of bark matoa contains flavonoids, and tannins compounds, the chemical content of these plants has the potentially as a source of natural dyes, while wood shavings waste from matoa wood company in Jayapura-Papua very overflow and not yet optimally utilized. The purpose of this research is to know the direction of the color resulting from the extraction of the waste of wood matoa shavings on batik cloth of protein fiber (silk), with the quality standard seen from the test value of the color fastness on the washing, the color difference (L*, a* , b*) and the color degree. This research using expiriment method, the extraction temperature (75°C dan 100°C), with variations in dye solution pH (acid 4  and base 10), as well as variations of the final mordant substance (70 g/l of alum and tunjung 30 g/l). The result of the research was found that the extraction temperature had no significant effect on the test value, whereas the acid and base pH variation treatment in dye solution had an effect on the degree of color and color direction, whereas acid pH produces the direction of dark brown color while base pH produces the direction of light brown color, color fastness test against washing showed 4-5 in good category.
Uji Evektivitas Larutan Pembersih Kerak Falling Film Plate Evaporator di Pabrik Gula Sulfitasi Risvan Kuswurjanto
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

In an effort to improve energy efficiency of the evaporator station, Falling Film Plate Evaporator (FFPE)can be used as solution. Though it indicated an improved performance of evaporator station there has been aserious problems of hard scales formation. Chemical cleaning with commercial formula wasn’t effectiveenough to remove scale at normal operation period. As interim effort the problems is approach by shorteningoperation cycle of FFPE to 8-10 days to prevent thicker scale formation. Therefore research is needed tolook for an effectives and friendly formula for FFPE scales cleaning. The preliminary results showedthat FFPE scale with working cycle of 8-10 days was thin, less than 1 mm thickness and weight of 2.89mg/cm2. The scale has a soft texture, a bit fragile and blackist brown colour. The KA and KB (Kom - 2)combination was more effective than single one (Kom - 1). The factory trial shows that the performanceof FFPE was better after cleaning than before. After acid cleaning and washing the bottom of plate pack wascleaner.
Valuable Metals Extraction From Hydrocracking Spent Catalyst Using Citric Acid Dewi Purnama Sari; Ahmad Tawfiequrahman; Himawan Tri Bayu Murti Petrus; Fika Rofiek Mufakir; Widi Astuti; Y Iskandar; D Bratakusuma
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2018: PROSIDING SNTKK 2018
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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