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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 132 Documents
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Search results for , issue "2023: PROSIDING SNTKK 2023" : 132 Documents clear
Pengaruh Adisi Nano-TiO2 pada Bahan Bakar Diesel Pertamina Dex pada Emisi Gas Buang Dharmawan, Aditya; Pasha, Pangeran Rafli; Putra, Restu Ramadhani Pratama
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2023: PROSIDING SNTKK 2023
Publisher : Seminar Nasional Teknik Kimia "Kejuangan"

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Abstract

The increase in the number of diesel vehicles in Indonesia leads to increased demand for diesel fuel energy, so the use of fuel must be managed as effectively and efficiently as possible. In this research, the addition of TiO2 nanoparticle additives to Pertamina Dex was carried out, using ultrasonic bath method. Each batch of synthesis was carried out in a capacity of 200 mL for 20 minutes, with a loading variation of Nano-TiO2 in Pertamina Dex from 0 mg/L to 200 mg/L. Then they were tested for physical properties such as density, viscosity, flash point and calorific value. They also tested for emission test. It was found that physical properties such as density, viscosity, flash point and calorific value of Pertamina Dex-Nano TiO2 did not change significantly. As of emission test, hydrocarbon emission test result showed 80% decrease, NOx emission test result showed 51% decrease, CO emission test result showed 47% decrease, CO2 emission test result showed 29% increase. Decrease of NOx achieved by lowering peak flame temperature after Nano-TiO2 was added. Decrease of hydrocarbon, decrease of CO and increase of CO2 emission achieved by higher rate of perfect combustion, from O2 supplied by Nano-TiO2.
Sintesis dan Karakterisasi Nano-Hidroksiapatit dari Cangkang Rajungan Sebagai Material Pembuatan Filament 3D Printing dengan Kombinasi Poly(caprolactone) Wiyono, Deden Eko; Siregar, Salma Auliarifkie; Ma'mun, Ummu Zahroh; Rosanti, Maharani Sugito; Ningrum, Eva Oktavia
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2023: PROSIDING SNTKK 2023
Publisher : Seminar Nasional Teknik Kimia "Kejuangan"

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Abstract

An orthopedic anchoring rotator cuff is often used to reattach a torn rotator cuff tendon to the bone.  However, anchoring rotator cuffs commonly use non-biodegradable metals and require a second surgery. Furthermore, manufacturing processes for retaining rotator cuff implants are developed using filament-based 3D printing. So that biodegradable and biocompatible materials are needed as filament materials for making anchoring rotator cuffs, one of which is by mixing poly(caprolactone) (PCL) and hydroxyapatite (HAp). In this research, we will synthesize nano-sized HAp from crab shell waste using the precipitation method. The synthesis results will be reviewed through XRF, FTIR, XRD, and SEM analysis. In addition, the mechanical properties of PCL/HAp composite filaments for tissue scaffolds at variables of 9.5:0.5, 9:1, and 8.5:1.5 were also reviewed. XRF characterization results show that the crab shell has a calcium content of 93.09%. FTIR testing shows the formation of hydroxyapatite functional groups, namely OH- and PO43. XRD test results show conformity with the JCPDS 09-0432 graph with a degree of crystallinity of 88.32%. SEM analysis showed that the HAp produced has a nano size with a particle diameter of about 126.3 nm. In mechanical analysis, the best PCL/HAp filaments were obtained at a mixing ratio of (9:1)
Sintesis dan Karaterisasi CuO/rGO Maulana, M Sifal; Riyani, Kapti; Setyaningtyas, Tien
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2023: PROSIDING SNTKK 2023
Publisher : Seminar Nasional Teknik Kimia "Kejuangan"

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Abstract

Semiconductor material is a material that is widely used in the chemical industry, especially as a photocatalyst. CuO is a semiconductor material that is active in the visible light range. Semiconductor materials can undergo recombination, rGO was used as a composite material into CuO to reduce recombination in this study. This study aims to look at the characteristics of the synthesized CuO/rGO. The processes performed include synthesis of CuO/rGO and characterization of CuO/rGO. The XRD results show the peaks of the diffractogram indicating of rGO peaks interpreted (002), peaks at (110), (-111), (111), (-202), (020), (202), (-113), (- 331), (220), (311) and (004) indicate the monoclinic phase of CuO has been formed. FTIR results indicating Cu-OH absorption show peak at wave numbers 3441.0 cm-1 and 894.97 cm-1, O-C-O vibrations present in CuO/rGO indicating adsorption at 2360.8 cm-1, 1975.1 and 1512 .1 cm-1 appears due to the C=C stretching vibrations in the rGO layer, 1033.8 cm-1 absorbs C-O stretching vibrations and 609.51 and 439.77 cm-1 have relative peaks indicating Cu-O stretching vibrations. The DRS results show that CuO/rGO has band gap value of 1.54 eV.
Pengaruh Variasi Bahan Pengendap pada Proses Purifikasi Enzim Bromelin dari Bonggol Nanas (Ananas Comosus L.) Triastuti, Warlinda Eka; Tyas, Sunia Rahma Cahyaning; Zahrah, Hanifah Fauziyah; Bennani, Kabira; Cahyani, Erika Desi; Ramadita, Tatya Annur; Rahayu, Adel Frisca
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2023: PROSIDING SNTKK 2023
Publisher : Seminar Nasional Teknik Kimia "Kejuangan"

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Abstract

Waste from processed pineapples (pineapple core) is currently underutilized, despite the high content of the bromelain enzyme found in the fruit. This research aims to determine the effect of precipitating agents on the purification process of bromelain enzyme production using a phosphate buffer on the resulting enzyme yield and to analyze the effect of the precipitating agents on the purification process of bromelain enzyme production using a phosphate buffer on the bromelain enzyme activity. The variables used in this study were a 0.1 M phosphate buffer, 55%; 60%; 65%; 70%; 75% aseton concentration, 5%; 10%; 15%; 20%; 25% NaCl concentration, and 60%; 65%; 70%; 75%; 80% ethanol concentration. This study will be conducted in three stages, namely Extraction, Purification, and Drying. The highest yield was obtained with 60% aseton concentration (1.44%), 65% ethanol concentration (1.42%), and 15% NaCl concentration (2.2%). The optimal enzyme activity was obtained with 60% aseton concentration (20225.616 U/gr), 65% ethanol concentration (6266.765 U/gr), and 15% NaCl concentration (2281.357 U/gr). In conclusion, the best result for producing bromelain enzyme powder from pineapple cores is by using a 60% aseton concentration solvent.
Potensi Selulosa Bakteri Sebagai Pembalut Luka Ideal dan Penghantar Obat (Drug Delivery) Liau, Selva Susilowati; Hidayat, Muslikhin; Sulistyo, Hary
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2023: PROSIDING SNTKK 2023
Publisher : Seminar Nasional Teknik Kimia "Kejuangan"

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Abstract

The wound healing process requires an environment that can maintain moisture, absorb excess exudate, and is biodegradable. Conventional wound dressings such as cotton, gauze, and bandages cause wound dehydration. Bacterial cellulose derived from the fermentation of coconut water by Acetobacter xylinum bacteria has unique characteristics that have the potential to be an ideal wound dressing because it can provide a moist environment. It also has good mechanical properties, biodegradability, high biocompatibility, and is non-toxic. Bacterial cellulose produces fine fibres forming a thin layer of extracellular polysaccharides. Such fibre makes it possible to bind to the molecules of the drug. This research will study the mechanical properties and efficiency of drug mass transfer from bacterial cellulose membranes with different carbon sources, namely glucose and fructose, with fermentation time variations of 3, 5, and 7 days. The results showed that the characteristic value of the fructose carbon source was superior to that of glucose. The glucose carbon source has a membrane thickness of 0.81; 6,93; 10.61 mm; fructose is 2.80; 8,41; 13.40 mm. The highest absorption capacity, stress, elongation and drug mass efficiency value is obtained by a fructose carbon source with a fermentation time of 7 days, and for absorption capacity obtained at 1.1640 g/g, stress value 105.9 N with elongation 19.90 mm and drug mass efficiency 4.085%
Physical Separation Bahan Aktif Katoda dari Campuran Hasil CrushingBaterai Lithium-Ion Bekas Fadillah, Farika Asna; Perdana, Indra; Purnomo, Chandra Wahyu
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2023: PROSIDING SNTKK 2023
Publisher : Seminar Nasional Teknik Kimia "Kejuangan"

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Abstract

The increasing use of electric vehicles in the coming decades makes the recycling of spent li-ion batteries an important topic to develop. Recycling spent li-ion batteries is necessary to extract valuable materials from the battery cathode. Elutriation is one of the separation method to separate the cathode and anode from the blackmass resulting from crushing by utilizing differences in density and terminal velocity. The Elutriation method is attractive to develop because the separation is done by adjusting the fluid velocity and does not use chemicals. In this study, 4 variations of fluid load will be used, namely 24, 27, 30, and 34 mL/min. The blackmass to be elutriated has a size variation between -38 to +53 micrometers. From the results under the elutriator, the cathode mass obtained for fluid load variations of 24, 27, 30, and 34 mL/min are 0.8366, 0.4333, 0.3907, and 0.1349 grams. The highest cathode recovery at a load of 24 mL/min is 97.21% and the cathode fraction is 0.4091. Furthermore, it can increase the cathode composition in the mixture by 48.98% and reduce the anode composition by 18.54%.
Preparation and Characterization of Ni/H-ZSM-5 Catalysts for Producing Green Diesel from Palmitic Acid Kurniati, Sayekti; Azis, Muhammad Mufti; Dwiatmoko, Adid Adep
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2023: PROSIDING SNTKK 2023
Publisher : Seminar Nasional Teknik Kimia "Kejuangan"

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Abstract

Biofuel is a promising alternative as a sustainable energy resource in the transportation sector in Indonesia. Green diesel is one of biofuels that can be produced from feedstock containing fatty acid. Fatty acid conversion to green diesel can be conducted via hydrodecarboxylation or hydrodeoxygenation process. Catalyst Ni/H-ZSM-5 is a potential catalyst to convert fatty acid to n-alkane which is the main component in green diesel. In this work, we prepared Ni/H-ZSM-5 catalyst with various Ni loading of 7%, 13%, 18%, and 25%, respectively. The catalysts were synthesized according to a simple incipient wetness impregnation method. Those catalysts were characterized with X-ray fluorescence, Field-Emission Scanning Electron Microscopy, and NH3-TPD. The highest nickel-loading catalyst, Ni 25%/H-ZSM-5, gave the best dispersion. NH3-TPD results showed the presence of two acid sites, namely Brønsted acid site and Lewis acid site. The presence of Brønsted acid sites is crucial to facilitate fatty acid conversion to n-alkane.
Catalytic Pyrolysis of Impregnated Citronella Biomass Using Boric Acid to Produce Furfural Nasim, Muhammad; Setiadi, Setiadi
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2023: PROSIDING SNTKK 2023
Publisher : Seminar Nasional Teknik Kimia "Kejuangan"

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Abstract

Citronella oil residue is one of the abundant lignocellulosic biomass wastes which has the potential to be converted into useful products through pyrolysis process. One of the useful products that can be produced from this residue is furfural compounds. Previous research has shown that furfural can be produced through the pyrolysis mechanism of lignocellulosic biomass. However, the amount of furfural compounds obtained is still relatively low. Therefore, in this study a research is carried out regarding catalytic pyrolysis process through impregnation method of biomass using boric acid as catalyst to produce furfural compounds with variation of catalyst ratio (0, 0.1, 0.3) and pyrolysis temperature (450 oC, 500 oC, 550 oC) to determine the optimal conditions for furfural production. Using GC-MS analysis, results were obtained which indicated the role of boric acid impregnation in increasing and maximizing the yield of furfural products. The optimal conditions for furfural production were obtained at a pyrolysis temperature of 550 oC and the use of a boric acid catalyst with a ratio of 0.1, whereby the yield of furfural compounds by GCMS analysis was 19.17% area.
Limbah Partikel Keramik Platinum dan Kaca Lampu Clear Philips sebagai Additive Semen Pengeboran ditinjau Compressive Strength, Shear Bond Strength, dan Thickening Time Ilcham, Adi; Awlia, Nur Risa
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2023: PROSIDING SNTKK 2023
Publisher : Seminar Nasional Teknik Kimia "Kejuangan"

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Abstract

Ceramic and glass particle waste is generated in large quantities as a result of their extensive use in various applications. Inappropriate disposal of the waste can lead to environmental degradation and health hazards. This research utilizes ceramic and glass wastes as drilling cement additives in the oil and gas industry. The objective of this research is to study the effect of adding ceramic and glass waste on the properties of drilling cement, including compressive strength, shear bond strength, and thickening time. With composition percentage ratios of 10%, 20%, 30%, 35%, and 40% by weight of cement, the slurry was poured into 1.2x2 inch cubic molds to test compressive strength and into 1.2x2 inch cylindrical molds to test shear bond strength. The findings of this study indicate that the addition of ceramic and glass waste as a drilling cement additive has a positive effect on compressive strength, shear bond strength, and thickening time and is also effective for use as an alternative additive in drilling cement operations
Overview of BTX (Benzene, Toluene, Xylene) Production from Polyethylene Pyrolysis over Ga and Zn Modified HZSM-5 Catalyst Yanewati, Shafira Hakim; Supramono, Dijan
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2023: PROSIDING SNTKK 2023
Publisher : Seminar Nasional Teknik Kimia "Kejuangan"

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Abstract

The increase in Indonesia's BTX chemical production was carried out to keep pace with global demand trends. The raw material for alternative production is household waste in Indonesia, of which 36% is plastic. Polyolefins make up 76% of the composition of household plastic waste. The rapidly developed BTX production process is the depolymerization of polyolefin plastics by pyrolysis and catalyst modification for catalysis. Polyolefin plastic in the form of polyethylene produces the highest aromatic yield and selectivity among other types of plastic in plastic waste. This study compared two scenarios with the highest yield of aromatics using different catalysts as base literature with an additional overview regarding the topic related. The process scenarios being compared are polyethylene pyrolysis over CaO with Ga/ZSM-5 catalyst and Zn-ZSM-5 catalyst. Literature overview obtained the overall BTX production progress over time and the potential of polyethylene catalytic pyrolysis for further study

Page 4 of 14 | Total Record : 132

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