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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 89 Documents
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Search results for , issue "2016: Prosiding SNTKK 2016" : 89 Documents clear
Sintesis Nanosilika dari Sekam Padi Menggunakan Metode Sol Gel dengan Pelarut Etanol Arenst Andreas; Hans Kristianto; Devi Fitriani Kurniawati
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2016: Prosiding SNTKK 2016
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Rice husk is a byproduct of the milling process of paddy into rice. Silica can be obtained from rice husk to be utilized in various fields in the industry into high value products, one of them is nanosilica. Nanosilica can be obtained from rice husk using sol gel method with ethanol solvent. Before using sol gel method, performed insulating silica from rice husk using leaching method with citric acid solvent and combustion method. The purpose of this research is to study the effects of feed ratio (sodium silica): solvent (ethanol) and aging time on sol-gel method on the physical characteristics and morphology of nanosilica. Variations were made in the sol-gel method consists of variations in the volume of sodium silica: ethanol is 1: 9, 1:16, and 1:23. Moreover, variations of aging time is  1, 3, and 7 days. Characteristics of nanosilica were analyzed using SEM (Scanning Electron Microscope) + EDX (Energy Dispersive X-Ray) and XRD (X-Ray Diffraction). At variations of ethanol solvent, the best variety is 1:16 for providing the highest purity silica (56.85%). While at the time variation of aging, aging time for 7 days giving highest silica purity results and the smallest size diameter.
Model Predictive Control Based on System Re-Identification for Methanol and Dimethyl Ether Synthesis Control Abdul Wahid; Afdal Adha
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2016: Prosiding SNTKK 2016
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

To improve the performance of the model predictive control (MPC) was carried out by improving the model used. In this study the improvement was carried out by a closed loop system re-identification. In addition, the MPC tuning was carried also to obtain a more optimum control performance. The MPC based on a system re-identification (MPC-SRI) was used to control the synthesis of methanol and dimethyl ether, and compared with the PI controller. The results provide better performance than PI controller by decreasing the errors for each unit as follows:  29,62% (IAE) and 1,51% (ISE) for TC (temperature control) Heater 1; 51,69% (IAE) and 79,04% (ISE) for TC Heater 2; 67,44% (IAE) and 82,24% (ISE) for TC Cooler 1; 49,07% (IAE) and 67,26% (ISE) for TC Cooler 2; 56,75% (IAE) and 53,03% (ISE) for PC (pressure control) Compressor; 4,46% (IAE) and 50,00% (ISE) for CC (composition control) DME.
Teknologi Pembuatan Liquid Smoke Daun Kesambi sebagai Bahan Pengasapan Se’i Ikan Olahan Khas Nusa Tenggara Timur Mamiek Mardyaningsih; Aloysius Leki; Stella Sahetapi Engel
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2016: Prosiding SNTKK 2016
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

The liquid smoke had been produced from raw material of kesambi leaves using pyrolysis reactor. The composition of kesambi leaves consist of 29.51% lignin, 27.62% selulosa and 15.27% hemiselulosa, and then put into pyrolysis reactor. Pyrolysing processing at 200~450oC for 5 hours and liquid smoke produced was characterized by means physicaly and proximate analyzed of pH parameter, colour, transparency, floating matters, acid, phenol and carbonil. The result of this study showed that the liquid smoke of grade 3 was generally brownish-red color, clouded, pH 2.25 and tar. For grade 2 was characterized by yellow color, slightly clouded, floating matters, pH 2.2 and grade 1 was characterized by colorless, transparent, no floating matters and pH 2.17. Proximate analyzed for liquid smoke was total phenol grade 3 was 2.57%, total acid was 13.67%, carbonil was 14.13%. On the other hand, liquid smoke grade 1 have total phenol was 0.49%, total acid was 9.78% and carbonil was 10.07%. Application of liquid smoke kesambi leaves pyrolysis results 400oC on making fish se’i meat with liquid smoke concentration of 5%, 10%, 15.20%, and 25% showed different results, both in terms of chemical components, physical and sensory properties of the fish se’i meat.
Studi Pengaruh Konsentrasi Glukosadan Laju Aerasi terhadap Produksi Asam Glukonat oleh Aspergillus niger Akbarningrum Fatmawati
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2016: Prosiding SNTKK 2016
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Chemical production through fermentation offers advantage in the safe condition used. One of such useful chemical products is gluconic acid, which can be produced by mold Aspergillus niger. This chemical is an interesting product and has various applications. This research studied the effect of initial glucose concentration and aeration rate on the growth of Aspergillus niger FNCC 6098 and its gluconic acid production through fermentation in a batch reactor. The reaction temperature and pH was controlled at 30oC and 6.5, respectively. Initial glucose concentration was varied as 150, 200 and 250 g/L while aeration rate was varied as 1.5, 2, and 2.5 vvm. The concentration of the mold mycelium, gluconic acid product and remaing glucose substrate are presented as function of time. The result of varying initial glucose concentration at fixed aeration showed that the 200 g/L glucose produced the highest yield of gluconic acid. Meanwhile the highest yield of gluconic acid at fixed initial glucose concentration was resulted at aeration rate of 2 vvm.
Pengaruh Perubahan Suhu pada Properti Adsorpsi dan Desorpsi Thermosensitive NIPAM-co¬-DMAAPS Gel Jovanio Bosco Chu Gomes Amaral; Desi Ratnasari; Prida Novarita Trisanti; Sumarno Sumarno; Eva Oktavia Ningrum
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2016: Prosiding SNTKK 2016
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Adsorbent gels with ability to absorb and desorb ion simultaneously with temperature swing are synthesized by free radical copolymerization reaction of N-isopropylacrylamide (NIPAM) and N,N-dimethyl(acrylamidopropyl)ammonium propane sulfonate (DMAAPS). In this study, NIPAM acts as a thermosensitive agent and DMAAPS as an adsorbent agent. The purposes of this research are to investigate the effects of temperature on the swelling, adsorption and desorption behaviors of ion onto thermosensitive NIPAM-co-DMAAPS gel, and to study the relationship between these behaviors. NaNO3 solution was selected as the target solution and used in swelling, adsorption and desorption test. Swelling test was done by measuring diameter of the cylindrical gel after and before immersion in the NaNO3 solution for 12 hours. The result revealed that at high temperature, the amount of ion adsorbed onto the gels was low. On the contrary, the gel exhibited a high degree of swelling and high amount of ion desorbed from the gel. Moreover, higher concentration of NaNO3 solution resulting in the higher value of the swelling degree, adsorption and desorption ability. Based on the relationship between the swelling properties and adsorption properties, it can be concluded that at a lower degree of swelling, the amount of ion adsorbed onto the gels showed a constant value. However, the amount of ion adsorbed decrease with further increasing the swelling degree.
Ekstraksi Daun Kapuk Randu (Ceiba pentandra Gaertn) dengan Pelarut Etanol Nur Apriliani; Aziz Ardiansyah; Siswanti Siswanti; Sri Sudarmi
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2016: Prosiding SNTKK 2016
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Kapok leaf contain many active compounds include saponins, flavonoids and phenols. The compounds has broad uses, as detergents, forming foam in fire extinguishers and shampoo industries, having hemolysis activity, and as the compounds used to remove kidney stones. The research aims to find out the influence of extraction temperature and ratio of kapok leaf with solvent to the concentration, and calculate the mass transfer coefficient (Kc). The extraction process was done using kapok leaf powder extracted with ethanol as a solvent in a three-neck flask with a mixer on the extraction temperature, the ratio of leaf with a solvent, and a particular time. To determine the concentration of extract in the solution , the extract was analyzed using a UV- Vis spectrophotometer. Mass transfer coefficient values obtained by optimization of the concentration of extract data at various times. From the results of research on the optimum extraction temperature of  70 ° C on  the  ratio of kapok  leaf  with solvent of 5 g / 350ml is obtained extract  0,62%  of  the weight of the leaf and  mass transfer coefficient (Kc)  5,74.10-1 g solvent / min.mm2.
Evaluasi Waktu Start Up pada Proses Peruraian Stillage secara Anaerobik Menggunakan Reaktor Fixed Bed dengan Zeolit sebagai Media Imobilisasi Wivina Diah Ivontianti; Wiratni Budhijanto; Siti Syamsiah
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2016: Prosiding SNTKK 2016
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Stillage was a waste containing high organic load and thus potentially as substrate anaerobic decomposition. However the complexity of the compounds contained therein has caused the decomposition process was slow.The study was conducted to evaluate the effect of substrate concentration to performance and the start up time required in fixed bed reactor with zeolite as immobilization media for stillage decomposition. The evaluation of the fixed bed reactor performance was executed by comparing experimental data and simulation result from the mathematical modelling as the standard under ideal condition for anaerobic stillage decomposition that has been compiled. The start up phase was conducted in the circulated batch system in two cycles with different substrate concentrations. Based on the evaluation, the first cycle with  the substrate concentration of 11.900 mg sCOD/L required 7-10 days to start up. If the first cycle had been conducted in more than 10 days, the condition was not optimum and it led to the death of microorganism. In the second cycle start-up phase with concentration  of the substrate of 17.600 mg/L sCOD in the reactor resulted in the failure of the system due to organic shock loading. From this study, it is obtained the  substrate with low concentration, 10.000 mg/L was good to start up.
Transformasi Nitrogen secara Biologis di Air Panas Sarongsong Kota Tomohon Frity Lisa Taroreh; Ferry Karwur; Jubhar Mangimbulude
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2016: Prosiding SNTKK 2016
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Nitrogen transformation is the alteration process of nitrogen compounds from one form to another occurred in the nature. The transformation can even occur in an extreme environment, such a hot springs, and get through processes, including amonification, nitrification and denitrification. The research objective was to determine the hydrochemicals/ characteristics of water physically and chemically, as well as to determine whether nitrogen transformation occured through the processes of amonification, nitrogen, nitrification and denitrification in Sarongsong hot spring. Samples in the research were taken from Sarongsong Hot spring, Tomohon City at three different stations and were grouped in two: aerobic and anaerobic. This research was undertaken in CARC laboratory, master’s program of biology, SWCU, Salatiga. The level of ammonium, nitrite and nitrate at three stations (S1, S2, S3) at early period of the research were measured. Levels of ammonium, nitrite, and nitrate at S1 respectively are: 4.85mg/ L; 0.00mg/ L; 0.00mg/ L; at S2: 2.45mg/ L; 0.00mg/ L; 0.00mg/ L; on S3: 4.37mg/ L; 0.00mg/ L; 0.00mg / L. following 7 days of treatment, levels of ammonium, nitrite and nitrate in S1, S2, S3 at the condition of the aerobic and anaerobic has altered in concentration, that  is an indication of nitrogen transformation process (amonification process) in Sarongsong hot spring, Tomohon City.
Daftar Isi Makalah Editor Prosiding SNTKK
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2016: Prosiding SNTKK 2016
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Daftar Isi Makalah
Aktivasi Zeolit Alam Lampung sebagai Adsorben Karbon Monoksida Asap Kebakaran Yuliusman Yuliusman
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2016: Prosiding SNTKK 2016
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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This study aims to absorb the carbon monoxide (CO) gas using Lampung natural zeolite as an adsorbent. Natural Zeolite has porous crystal structure, large surface area, high thermal stability, non-toxic, and effective. Natural zeolites contain many impurities, then it must be activated. Activation of natural zeolite was done by soaking in a solution of 2% HF for 10 minutes with stirring. Furthermore, dealumination natural zeolite carried out  by soaking in a solution of 6 M HCl for 30 minutes. Zeolite was soaked with a solution of 0.1 M NH4Cl and then was calcined.  Then Activated Natural zeolite was tested the adsorption of cabon monoxide gas from burning tissue paper. Variations in particle size of the zeolite is 53-106 μm, 106-150 μm and 150-212 μm. The results showed that activated natural zeolite with a particle size of 53-106 microns can adsorb CO gas at 379 ppm (12.2%) of the initial concentration for 20 minutes.

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