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All Journal Reaktor JURNAL TEKNOLOGI LINGKUNGAN Jurnal Bahan Alam Terbarukan Waste Technology Journal of Engineering and Technological Sciences World Chemical Engineering Journal JURNAL INTEGRASI PROSES Teknika: Jurnal Sains dan Teknologi EduChemia: Jurnal Kimia dan Pendidikan Indonesian Journal of Science and Technology Jurnal Tirtayasa Ekonomika (Tirtayasa Economica Journal) Journal of Energy, Mechanical, Material and Manufacturing Engineering Angkasa: Jurnal Ilmiah Bidang Teknologi Jurnal Kartika Kimia International Journal of Research and Applied Technology (INJURATECH) Automotive Experiences Journal of Mechanical and Electrical Technology Fraction: Jurnal Teori dan Terapan Matematika Urecol Journal. Part D: Applied Sciences
Teguh Kurniawan
Universitas Sultan Ageng Tirtayasa
Aerospace Engineering Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Other

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Pengaruh Penggunaan Asam Terhadap Pemisahan Logam dari Abu Layang Batubara Sebagai Bahan Dasar Sintesis Zeolit Hesti Prihastuti; Nuryoto Nuryoto; Anton Irawan; Teguh Kurniawan
Jurnal Kartika Kimia Vol 4 No 1 (2021): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, University of Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jkk.v4i1.72

Abstract

Abu layang merupakan produk samping berupa limbah padat yang dihasilkan dari proses pembakaran batubara pada pembangkit tenaga listrik, yang mengandung sebagian besar senyawa silika (SiO2), alumina (Al2O3), dan oksida besi (Fe2O3). Abu layang berpotensi digunakan sebagai bahan dasar sintesis zeolit. Adanya pengotor pada abu layang seperti Fe dan Ca akan berpengaruh terhadap tingkat kemurnian zeolit yang diperoleh. Oleh karena itu penelitian ini bertujuan untuk mempelajari pengaruh penggunaan asam klorida (HCl) terhadap pemisahan logam Fe dan Ca dari abu layang sebagai bahan dasar sintesis zeolit. Metode yang digunakan untuk pemisahan logam Fe dan Ca menggunakan HCl dari abu layang adalah dengan menggunakan refluks. Pada penelitian ini, HCl dibuat variasi konsentrasi 4 M; 8 M; dan 12 M dan dilakukan analisis X-Ray Fluoerescence (XRF) terhadap abu layang. Kandungan logam Fe dan Ca sebelum perlakuan asam adalah 34.28% dan 21.60%. Berdasarkan hasil analisis XRF, abu layang dengan perlakuan asam HCl 4 M, 8 M dan 12 M menunjukkan penurunan kandungan Fe menjadi 16,29%; 14,03%; 11,98% dan penurunan Ca menjadi 3,59%, 3,30%, dan 2,96%. Dapat disimpulkan bahwa pemisahan kandungan logam Fe dan Ca kadarnya semakin berkurang dari abu layang dengan semakin besar konsentrasi HCl. Kata kunci: abu layang; asam klorida; zeolite
DESIGN OF SHELL AND TUBE TYPE HEAT EXCHANGER FOR NANOFIBRIL CELLULOSE PRODUCTION PROCESS Hanif Nur Purnamasari; Teguh Kurniawan; Asep Bayu Dani Nandiyanto
International Journal of Research and Applied Technology (INJURATECH) Vol 1 No 2 (2021): International Journal of Research and Applied Technology (INJURATECH)
Publisher : Universitas Komputer Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (870.737 KB) | DOI: 10.34010/injuratech.v1i2.6410

Abstract

Heat exchanger plays an important role in industry. In industrial applications, the type of heat exchanger that is often found is the shell and tube type heat exchanger. The aim of this paper is to of tube and shell type heat exchanger for nanofibril cellulose production applications. The method used is to design several assumptions and calculate parameters related to determining the performance of the heat exchanger. The parameters are calculated manually using the Microsoft Excel application. In this design, the TEMA standard is used as a reference. The result of this paper is the heat exchanger has 53 pcs of tubes with the effectiveness up to 89.21%. This indicates that the overall performance of the heat exchanger in cellulose nanofibril production applications can be further improved by selecting the right fluid, fluid flow rate, and other physical properties, as well as the number of tubes that will be required
Characterization of ion-exchanged zeolites with lithium for Pressure Swing Adsorption (PSA) applications Nidya Jullanar Salman; Dhimas Satria; Damar Abi Ramadani; Teguh Kurniawan
Angkasa: Jurnal Ilmiah Bidang Teknologi Vol 14, No 2 (2022): November
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/angkasa.v14i2.1349

Abstract

The method used for the Ion Exchange process to determine the characteristics of the zeolite is refluxing the zeolite using a 4 M LiCl solution for 36 hours at a temperature of 72℃ and calcined at a temperature of 400℃ for 10 hours. XRF characterization results showed natural zeolite Lampung had moderate Si/Al levels with 8.97 and 8.79 for those given lithium, while zeolite 13X had low Si/Al levels with 4.31 and 3.77 for those given lithium. The XRD results show that Lampung's natural zeolite is clinoptilolite and 13X zeolite is NaX. The results of the adsorption test using the PSA tool, namely for natural zeolite Lampung, the highest oxygen value was 21.3% and that was given lithium at 21.2% for the single bed and double bed types. For zeolite 13X, the highest oxygen value was 22% and that given lithium was 24% for the single bed type, and for the double bed type the highest oxygen value was 21.8% and those given lithium were 24.9%.
Conversion of Green Silica from Corn Leaf into Zeolites Na A-X Teguh Kurniawan; Dhimas Satria; Juniafit Bima Saputra; Muhammad Roil Bilad; Nik Abdul Hadi Md Nordin; Hairus Abdullah
Indonesian Journal of Science and Technology Vol 7, No 2 (2022): IJOST: VOLUME 7, ISSUE 2, September 2022
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ijost.v7i2.45831

Abstract

Combustion of corn leaf as a model of biomass from agricultural waste is a simple way to obtain the energy. It produces a low-value by-product of ash and is rich in silica that can become a precursor for zeolite production. In this study, acid-treated corn leaves combustion was performed to produce high purity silica (SiO2). The diffraction pattern suggested that the extracted silica was amorphous without the impurities phase. Additionally, the nitrogen isotherm indicated that the material was highly mesoporous silica with a total surface area of 200 m2/g. The hydrothermal method was then applied with a composition molar ratio of 1.25SiO2:1Al2O3:5Na2O:250H2O to synthesize zeolites from the silica. The temperature and time effect on the hydrothermal zeolite’s synthesis was investigated. The diffraction pattern shows that high crystalline zeolite Na A-X was produced at temperatures of 100°C and 8 h hydrothermal time. According to nitrogen physisorption analysis, the zeolite Na A-X consisted of micropores with a total surface area of 270 m2/g. The morphology of zeolite Na A-X was cube for the Na-A and octahedral for the Na-X. The hydrothermal temperature and time highly affected the zeolite formed. This research suggested that the ash waste could be valorized through conversion into a high economic value zeolites.
RANCANGAN HEAT EXCHANGER JENIS SHELL AND TUBE UNTUK PRODUKSI NANOPARTIKEL Fe3O4 SKALA INDUSTRI: DESIGN OF SHELL AND TUBE TYPE HEAT EXCHANGER FOR INDUSTRIAL SCALE Fe3O4 NANOPARTICLE PRODUCTION USING MATHEMATIC MODELING Mentari Putri Aprilia; Asep Bayu Dani Nandiyanto; Teguh Kurniawan; Meli Fiandini; Risti Ragadhita
Fraction: Jurnal Teori dan Terapan Matematika Vol. 2 No. 2 (2022): Fraction: Jurnal Teori dan Terapan Matematika
Publisher : Jurusan Matematika, Fakultas Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/fraction.v2i2.33

Abstract

Nanopartikel Fe3O4 merupakan jenis nanopartikel yang berperan penting dalam kehidupan industri. Namun, masih jarang ditemukan proses sintesis Fe3O4 menggunakan sistem heat exchanger pada skala industri sehingga penelitian ini dilakukan untuk merancang heat exchanger jenis shell and tube dalam proses produksi nanopartikel Fe3O4 pada skala industri. Metode yang digunakan pada penelitian ini yaitu perhitungan matematis menggunakan lebih dari 20 persamaan yang diturunkan berdasarkan pengaruh dimensi dan spesifikasi fluida dan kemudian data yang diperoleh diolah dengan menggunakan aplikasi Microsoft Excel. Rancangan alat HE memiliki spesifikasi panjang tube 4,572 m, diameter tube 0,0254 m, dan ketebalannya 0,0018 m. Lalu data diolah menggunakan software pengolah data Microsoft Excel. Hasilnya menunjukkan bahwa rancagan heat exchanger jenis shell and tube ini memiliki nilai efektivitas 93% dengan faktor kemurnian 0,01 jam.ft2.oF/Btu. Dari penelitian ini diketahui jenis HE shell and tube yang dirancang belum sesuai dengan standar yang telah ditetapkan oleh industri.
Correlation Analysis of Radical Polymerization Reactor Operating Conditions to Industrial Scale Swelling Capacity of Superabsorbent Willy Aulia Ilham; Teguh Kurniawan; Saepurahman Saepurahman; Ratna Sari Siti Aisyah
EduChemia (Jurnal Kimia dan Pendidikan) Vol 8, No 2 (2023)
Publisher : Department of Chemical Education Faculty of Teacher Training and Education Universitas Su

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/educhemia.v8i1.21201

Abstract

Superabsorbent polymer (SAP) is a polymer that has many functions in modern human’s life, one of which is as an absorbent material in baby diapers. The growing demand for SAP with high quality SAP makes it necessary to study the effects of production variables on the quality of SAP on an industrial scale. The quality of SAP is determined by the number of Swelling Capacity (SC) where the ideal number is greater than 50 g/g. Many previous studies regarding the effect of synthesis parameters on the number of SC of SAP were limited to the laboratory scale where the polymerization conditions were different from the industrial scale. Also the number of variables and SC data obtained from laboratory scale synthesis were limited. The polymerization stage in the reactor with its accompanying operating variables such as reaction temperature, monomer concentration, retention time, crosslinker concentration, addition of nitrogen gas and initiator concentration affects the value of SC in the industrial-scale SAP production process. This study aims to analyse the correlation between the reactor operating conditions and the number of SAP SC obtained. Correlation data analysis was done using microsoft excel with Data Analysis toolpak/ python by utilizing production data with a total of 1,562 entries where the correlation between each variables was calculated using the Pearson’s correlation coefficient. Based on the analysis, it was obtained that the variables that had the strongest correlation with the SC were retention time and reaction temperature with correlation coefficient values of 0.31 and -0.26. The weakest correlation was obtained from the addition of nitrogen gas and an initiator with a value of -0.07 and -0.02. Positive values indicate a relationship that is directly proportional while negative values indicate an inverse relationship. Based on the correlation analyses and trends, the ideal polymerization conditions have been identified.
Design of Biodiesel Reactor Using Nanocatalyst ZnO From Castor Oil Ranggaweny Al-Ghani; Asep Bayu Dani Nandiyanto; Teguh Kurniawan
Metrotech (Journal of Mechanical and Electrical Technology) Vol 2 No 1: Januari 2023
Publisher : Fakultas Sains dan Teknologi, UNIRA Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33379/metrotech.v2i1.2089

Abstract

Mass transfer during the reaction process is limited in industrial biodiesel manufacture. Therefore, to overcome this problem, a reactor from castor oil transesterified using ZnO nanocatalyst was designed. ZnO can be used as a catalyst for biodiesel production due to the nature of ZnO which has high catalytic activity, low material costs and is environmentally friendly. This study aims to design a design for the manufacture of zinc oxide (ZnO) nanocrystals using a continuous stirred tank reactor (CSTR) reactor. By giving data on incoming feedstock and product flow produced by the reactor, mass balance calculations were used in this study as a benchmark to determine whether the reactor was operating appropriately. Additionally, using Microsoft Excel, manual calculations were done for the reactor design and agitator design employed in the reactor. According to calculations used in reactor design, the reactor has a volume of 1967.78 liters, a vessel diameter of 44.77 inches, a height of 19.25 inches, and a thickness of 44.98 inches. The reactor is equipped in one stirrer with a power on a typical 10 hp agitator motor, turbulent agitator flow conditions exist.
Design of Shell and Tube Heat Exchanger for Production Aluminium Nitride Nanoparticle in Application Industry Ranggaweny Al-Ghani; Asep Bayu Dani Nandiyanto; Teguh Kurniawan
Urecol Journal. Part D: Applied Sciences Vol. 2 No. 2 (2022): August-Dec
Publisher : Konsorsium LPPM Perguruan Tinggi Muhammadiyah 'Aisyiyah (PTMA) Koordinator Wilayah Jawa Tengah - DIY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53017/ujas.204

Abstract

The current industrial implementation process is required to be carried out efficiently and environmentally friendly, this can be done with the presence of a heat exchanger. However, heat exchangers in the production of aluminum nitride nanoparticles are still rare. The purpose of this research is to analyze and improve the heat exchanger design in the production process of aluminum nitride nanoparticles at low cost. The heat exchanger can be designed based on several parameters of the TEMA standard by dimensional specification and specifications of hot and cold fluids. The method is calculated using a Microsoft excel application to evaluate the heat exchanger design according to the TEMA standard. The results showed that the shell and tube heat exchanger was designed with 39 tubes and an effective value of 85.72%. These results have met the TEMA standard and it is hoped that the design and evaluation of this heat exchanger can be used as a reference in the aluminum nitride nanoparticle production industry.
SINTESIS, KARAKTERISASI DAN APLIKASI TIMAH TETRAKLORIDA PENTAHIDRAT Marta Pramudita; Alia Badra Pitaloka; Rahmayetti Rahmayetti; Jayanudin Jayanudin; Saepurahman Saepurahman; Teguh Kurniawan; Selfira Arum Andadari
JURNAL INTEGRASI PROSES Vol 12, No 2 (2023)
Publisher : JURNAL INTEGRASI PROSES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/jip.v12i2.22830

Abstract

Indonesia is one of the world's largest tin-producing countries, but its downstream industry is not well developed. One of the chemical products derived from tin is SnCl4.5H2O. Several commercial production routes are reviewed in this paper. In addition, SnCl4.5H2O characterization techniques from advanced analytical instruments to titration analysis are also discussed. Commercial applications of SnCl4.5H2O products include catalysts, polyvinyl chloride (PVC) stabilizers, and dyes. The latest developments regarding the potential of SnCl4.5H2O as a catalyst are also reviewed in this paper.
Kinetics Studies of Ciprofloxacin Waste Degradation Using TiO2 Nanotubes from The Anodization Process Kustiningsih, Indar; Putri, Berliana Tristati; Putri, Martina Reza; Kurniawan, Teguh; Sari, Denni Kartika; Adiwibowo, Muhammad Triyogo; Slamet, Slamet
EduChemia: Jurnal Kimia dan Pendidikan Vol 8, No 2 (2023)
Publisher : Department of Chemical Education Faculty of Teacher Training and Education Universitas Su

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/educhemia.v8i2.23963

Abstract

ecosystems and alter the genetic code of normal bacteria, resulting in bacterial resistance. Ciprofloxacin (CIP) is one of the antibiotics that can be an environmental challenge if it accumulates in certain quantities. The process that can be used to eliminate CIP waste from water is the photocatalysis process. This work aimed to study the kinetics of CIP degradation using TiO2 nanotubes (TNTAs) from the anodization process. TNTAs with varying water contents and voltages are produced during the anodization process. TNTAs are synthesized by anodizing organic electrolyte solutions with different voltages (40, 50, and 60 V) and water contents (20, 25, and 30%). The TNTAs are then employed in CIP waste degradation with variations in the initial pH of the waste (pH 5-8) for 3 hours. SEM and XRD were used in this investigation to characterize the catalyst. SEM results illustrate the effect of voltage and water content on the anodization process with increasing contact surface area. XRD data demonstrate the presence of anatase phase crystals produced in TNTAs. The results showed that the kinetics of the CIP degradation reaction followed order one, with the best kinetic constant attained at 8.24 hours-1.
Co-Authors Abdul Hadi Abdusattar, Thareqa ACHMAD RIFAI Adian Yoga Pradana Adiwibowo, Muhammad Triyogo Aisyah, Ratna Sari siti Alia Badra Pitaloka Andre Wibowo Anggara Diaz Ramadhan Anita Diyanah Anton Irawan Asep Bayu Dani Nandiyanto Bindar, Yazid Damar Abi Ramadani Darisman Darisman Dhimas Satria Dina Pujianti Endang Suhendi, Endang Erny Listijorini Fajar Gumelar Fauzan, Eka R. Fiandini, Meli Firdaus, Mochamad Adha Frans Romario Panjaitan Ghani Naufal Hafid Alwan Hafid Alwan Hairus Abdullah Handry Shantos Hanif Nur Purnamasari Hesti Prihastuti Ilham, Willy Aulia Imron Rosyadi Indar Kustingsih Indar Kustiningsih Jayanudin Jayanudin Juniafit Bima Saputra Kustiningsih, Indar Makiyi, Muhammad Marta Pramudita Mentari Putri Aprilia Muchamad Ismettulloh Muhammad Roil Bilad Muhammad Saifullah Abu Bakar Murni, Dewi Naibaho, Pipiet P.U. Nik Abdul Hadi Md Nordin Nindya Carolina C.S Nisa Aina Fauziah Novan Prihasa Nurwijayanti Nuryoto Nuryoto, Nuryoto Oki Muraza Putri, Berliana Tristati Putri, Martina Reza Raffli Nurmuhammad Ragadhita, Risti Rahmayetti Rahmayetti Rahmayetty Rahmayetty Ranggaweny Al-Ghani Ranggaweny Al-Ghani Ratna Sari Siti Aisyah Rina Lusiani Rosid Rosid Saepurahman Saepurahman Saepurahman Saepurahman Saepurahman, Saepurahman Saiful Bahri Salman, Nidya Jullanar Sari, Denni Kartika Selfira Arum Andadari Septian Arief Nur Rahman Sjaifuddin Sjaifuddin Slamet, Slamet Sri Agustina Tia Lestari Vicky Zayan Giffari Wahyudi Eko Pratomo Willy Aulia Ilham Yazid Bindar Yazid Bindar Yazid Bindar Yogi Wibisono Budhi Yuhelsa Putra