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All Journal Reaktor International Journal of Renewable Energy Development TEKNIK Jurnal Ilmu Lingkungan JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Bulletin of Chemical Reaction Engineering & Catalysis Seminar Nasional Teknik Kimia Kejuangan Widyariset Widyariset Jurnal Teknik Kimia Indonesia Automotive Experiences Indonesia Jurnal Farmasi International Journal of Renewable Energy Development Bulletin of Chemical Reaction Engineering & Catalysis
Didi Dwi Anggoro
Chemical Engineering Department, Engineering Faculty, Diponegoro University Jl. Prof. Soedarto, SH, Tembalang, Semarang 50239, Telp.(024)7460058
Aerospace Engineering Astronomy 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 Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Neuroscience Physics Public Health

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Optimasi Proses Dealuminasi Modernite sebagai Katalis Perengkahan Minyak Goreng Bekas menjadi Biofuel Didi Dwi Anggoro; Luqman B; Setia Budi S; Nita A; Rohmadona H; Sigit B
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Used cooking oil is a food industry waste and household waste, which has high potential to be used as biofuel feedstock, which has the chain of carbon and hydrogen atoms high. Biofuel can be produced by the method of catalytic cracking. Modernite is potential to be used as an acid catalyst for the cracking process. To get a good acidity catalyst, modernite can be modified catalyst by dealumination process. The raw material used is used cooking oil and used modernite type zeolite catalyst with a trademark CBV 21A, which having a mole ratio of SiO2 / Al2O3 of 20 and a surface area of 500 m2/g. The reactor used in the form of a catalytic reactor and a three-stage process i.e dealumination of the catalyst, catalyst calcination process, and catalyst testing to reaction of used cooking oil catalytic cracking. Dealuminated catalyst is carried on a temperature that is 30, 50, 70°C. Modernite catalyst dealumination results included in the pipe nozzle and injected into the furnace by flowing N2 gas at a temperature of 600oC for 5 jam. For catalyst testing for used cooking oil cracking reaction under temperature 450 oC. In this study, the optimization equation for the liquid product is Y = 2,801712 + 0,296807 X1 + 0,579137 X2 + 0,486784 X3 – 0,1875 X - 0,2125 X2X3 – 0,211775 X1^2 + 0,467905 X2^2 – 0,59326 X3^2
The Effects of Sodium Hydroxide (NaOH) Concentration and Reaction Temperature on The Properties of Biodiesel from Philippine Tung (Reutealis Trisperma) Seeds Slamet Supriyadi; Purwanto Purwanto; Didi Dwi Anggoro; Hermawan Hermawan
Automotive Experiences Vol 5 No 1 (2022)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (657.604 KB) | DOI: 10.31603/ae.5986

Abstract

Philippine Tung (Reutealis trisperma) is an indigenous nut that is a relatively new feedstock for producing biodiesel in Indonesia. The nature of NaOH base catalyst and reaction temperature plays an important role in the method of biodiesel production. This study aimed to assess the effects of different percentages of NaOH base catalyst and reaction temperature on physicochemical properties of Philippine Tung biodiesel. Transesterification process was carried out by reacting Philippine Tung oil with methanol and NaOH catalyst. NaOH weight to oil weight was at 0.25%, 0.5%,0.75% and 1%, the reaction temperature set up were at 60°C and 70°C, while methanol-oil molar ratio was set at 6:1. Yield, acid value, saponification value, density, and viscosity of biodiesel were significantly influenced by NaOH catalyst concentrations. Meanwhile reaction temperature had no effect on the yield and viscosity. Philippine Tung biodiesel produced using 0.25% NaOH catalyst met the SNI 04-7182-2015 biodiesel standard of the properties investigated in this study (yield: 96.18%, acid value: 0.466 mg KOH/g, saponification value: 200.083 mg KOH/g, density: 0.889 g/mL, viscosity: 5.276 cSt).
KELAYAKAN EKONOMI PADA PRARANCANGAN PABRIK FTALAT ANHIDRIDA KAPASITAS 45.000 TON/TAHUN Diah Anggraeni Jatraningrum; Sari Octavianingrum; Herry Santosa; Didi Dwi Anggoro
Widyariset Vol 13, No 1 (2010): Widyariset
Publisher : Pusbindiklat - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/widyariset.13.1.2010.209-215

Abstract

A pre-design of plant to produce 45.000 tons/year phthalic anhydride from 47,200 tons/year ortho-xylene uses Davy McKee process with vanadium pentaoxide catalyst in non isothermal - non adiabatic fixed bed multitubes reactor that operated at 2 atm and 340-360oC. Phthalic anhydride is intermediate chemical that raw material and product price depend on the global economical condition. From the design basis, the economical parameters analysis show that after tax, Profit on Sales (POS) is 7.78%, Return On Investment (ROI) is 34.76%, Pay Out Time (POT) is 2.23 years, Break Event Point (BEP) is 43.71%, Shut Down Point (SDP) is 28.16% and Discounted CashFlow Rate of Return (DCFRR) is 22.40%. All economical parameters requirements for plant design are complied. The range of optimum commercial plant capacity is 26,221 to 71,210 tons/year. Due to price fluctuation, plant can be run normally on range of increasing raw material price +6.79% and decreasing product price -6.92% from price basis and it is better than South East Asia market condition. It is concluded that the phthalic anhydride plant is feasible to be established in Indonesia.
A Review on the Recent Breakthrough Methods and Influential Parameters in the Biodiesel Synthesis and Purification S. Silviana; Didi Dwi Anggoro; H. Hadiyanto; Cantika Aulia Salsabila; Kevin Aprilio; Anisa Widia Utami; Afriza Ni'matus Sa'adah; Febio Dalanta
International Journal of Renewable Energy Development Vol 11, No 4 (2022): November 2022
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.2022.43147

Abstract

Biodiesel has recently received much attention as an energy source with numerous benefits such as high degradability, negligible toxicity, and minimal emissions of carbon monoxide gases as well as particulates. Therefore, this research aims to compare, review, and summarize the conventional and advanced methods of biodiesel production. Currently, some emerging processes that were developed for advanced biodiesel production include microwave-assisted synthesis, ultrasonic-assisted synthesis, supercritical transesterification, and liquid phase plasma discharge technology. The types of feedstocks, catalysts, and operating conditions as the influential parameters in biodiesel synthesis are also discussed. Moreover, in the purification process, the effectiveness of purification depends on the type of catalyst applied in the synthesis process. This research also reviewed and compared several commonly used purification methods such as wet and dry washing, ion exchange and precipitation, complexation, and membrane-based separation that have shown significant results along with the impacts of biodiesel production on environmental and economic sectors
PREPARASI DAN KARAKTERISTIK KATALIS COMO/ZEOLIT Y DENGAN METODE PERTUKARAN ION Yayuk Mundriyastutik; Didi Dwi Anggoro; Nur Hidayati
Indonesia Jurnal Farmasi Vol 1, No 1 (2016): Indonesia Jurnal Farmasi
Publisher : Indonesia Jurnal Farmasi

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Abstract

Preparasi katalis adalah persiapan pembuatan katalis dari bahan baku hingga menjadi sebuah katalis. Metode pertukaran ion di kenal juga dengan metode adsorpsi pada larutan. Prinsip kerja dari metode ini adalah menukarkan ion yang terdapat pada situs aktif pengemban dengan katalis logam. logam yang diembankan pada padatan harus mempunyai kriteria yang terdiri dari stabilitas pengemban, sifat inert pengemban, biaya, legalitas terhadap hak paten. Katalis kobalt dan molybednum merupakan katalis aktif yang sering digunakan untuk reaksi hidrogenasi. Katalis CoMo zeolit Y dibuat dengan metode pertukaran ion yang dilanjutkan dengan proses kalsinasi selama 3 jam dengan suhu 550˚C. Karakterisasi katalis meliputi penentuan kristalinitas dengan XRD, penentuan jumlah situs asam dengan analisa piridin, serta penentuan struktur dan jenis ikatan kimia dengan FTIR. Hasil dari perengkahan Hasil karakterisasi analisa XRD menunjukkan bahwa Co dan Mo sudah teremban ke dalam zeolit Y sebesar 19,0867˚, 12,2274˚, 20,7809˚. Analisa FTIR menunjukkan pergeseran puncak serapan antara zeolit Y dan CoMo zeolit Y. Analisa piridin menujukkan bahwa semakin banyak logam yang teremban semakin meningkat keasamannya dan semakin tinggi keasaman semakin meningkat konversi produk.
A Review on the Recent Breakthrough Methods and Influential Parameters in the Biodiesel Synthesis and Purification S. Silviana; Didi Dwi Anggoro; H. Hadiyanto; Cantika Aulia Salsabila; Kevin Aprilio; Anisa Widia Utami; Afriza Ni'matus Sa'adah; Febio Dalanta
International Journal of Renewable Energy Development Vol 11, No 4 (2022): November 2022
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.2022.43147

Abstract

Biodiesel has recently received much attention as an energy source with numerous benefits such as high degradability, negligible toxicity, and minimal emissions of carbon monoxide gases as well as particulates. Therefore, this research aims to compare, review, and summarize the conventional and advanced methods of biodiesel production. Currently, some emerging processes that were developed for advanced biodiesel production include microwave-assisted synthesis, ultrasonic-assisted synthesis, supercritical transesterification, and liquid phase plasma discharge technology. The types of feedstocks, catalysts, and operating conditions as the influential parameters in biodiesel synthesis are also discussed. Moreover, in the purification process, the effectiveness of purification depends on the type of catalyst applied in the synthesis process. This research also reviewed and compared several commonly used purification methods such as wet and dry washing, ion exchange and precipitation, complexation, and membrane-based separation that have shown significant results along with the impacts of biodiesel production on environmental and economic sectors
Optimization of Monoglycerides Production Using KF/CaO-MgO Heterogeneous Catalysis Luqman Buchori; Didi Dwi Anggoro; Indro Sumantri; Riko Rikardo Putra
Bulletin of Chemical Reaction Engineering & Catalysis 2019: BCREC Volume 14 Issue 3 Year 2019 (December 2019)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.14.3.4251.689-696

Abstract

The production of monoglyceride or monoacylglycerol (MAG) from triglycerides and glycerol has been studied. The purpose of this research was to study the effect of using KF/CaO-MgO catalyst on MAG production with batch reactor. The effect of reaction temperature, reaction time, and catalyst loading was investigated using Response Surface Methods (RSM). The reaction temperature, reaction time, and catalyst loading were varied at 200-220 ºC,  2-4 hours, and 0.1-0.3 % w/w, respectively. The maximum yield of monoglyceride 41.58% was achieved the optimum conditions of  catalyst loading of 0.19 % (w/w), reaction temperature of 208.4 ºC, and reaction time of 3.20 hours.  
The Potential of Cellulose as a Source of Bioethanol using the Solid Catalyst: A Mini-Review Didi Dwi Anggoro; Kamsi Nur Oktavia
Bulletin of Chemical Reaction Engineering & Catalysis 2021: BCREC Volume 16 Issue 3 Year 2021 (September 2021)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.16.3.10635.661-672

Abstract

One of the most important biofuels is cellulose ethanol which is a popular material for bioethanol production. The present cellulosic ethanol production is through the cellulolytic process and this involves the splitting of complex cellulose into simple sugars through the hydrolysis process of the lignocellulose pretreated with acids and enzymes after which the product is fermented and distilled. There are, however, some challenges due to the enzymatic and acid processes based on the fact that acid hydrolysis has the ability to corrode equipment and cause unwanted waste while the enzymatic hydrolysis process requires a longer time because enzymes are costly and limited. This means there is a need for innovations to minimize the problems associated with these two processes and this led to the application of solid catalysts as the green and effective catalyst to convert cellulose to ethanol. Solid catalysts are resistant to acid and base conditions, have a high surface area, and do not cause corrosion during the conversion of the cellulose due to their neutral pH. This review, therefore, includes the determination of the cellulose potential as feedstock to be used in ethanol production as well as the preparation and application of solid catalyst as the mechanism to convert cellulose into fuel and chemicals. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0). 
Basicity Optimization of KF/Ca-MgO Catalyst using Impregnation Method Didi Dwi Anggoro; Luqman Buchori; Setia Budi Sasongko; Herawati Oktavianty
Bulletin of Chemical Reaction Engineering & Catalysis 2019: BCREC Volume 14 Issue 3 Year 2019 (December 2019)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.14.3.4248.678-682

Abstract

This research aimed at determining the optimum value between calcination temperature (X1), calcination time (X2) and %wt KF (X3) toward optimum basicity of KF/Ca-MgO catalyst. Approximately 2-4%wt KF was added to the KF/Ca-MgO catalyst using the impregnation method to assist the Ca-MgO, at 450-550 ºC and a calcination time of 2-4 hours. Furthermore, its basicity was analyzed using Tanabe's titration method. The use of Variance Analysis (ANOVA), indicated that calcination temperature (X1) factor achieved the highest basicity of KF/Ca-MgO catalyst, as indicated by its high F-value (16.46262) and low p-value (0.0067). The correlation between each operating variables and the responses were shown in a mathematical equation. The optimization value is estimated by limiting the calcination temperature from 415.9 to 584.1 ºC, with a calcination time ranging from 1.32 to 4.68 hours, and %wt KF of 1.3182 to 4.6818 % that obtained 1.18 mmol/g for the optimal catalyst basicity. 
Preparation, Characterization, and Activation of Co-Mo/Y Zeolite Catalyst for Coal Tar Conversion to Liquid Fuel Didi Dwi Anggoro; Luqman Buchori; Giveni Christina Silaen; Resti Nur Utami
Bulletin of Chemical Reaction Engineering & Catalysis 2017: BCREC Volume 12 Issue 2 Year 2017 (August 2017)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.12.2.768.219-226

Abstract

One of many efforts to convert coal tar into alternative liquid fuel is by hydrocracking. This research aims to determine the impregnation of Co-Mo/Y zeolite, its characteristics, the effect of impregnation temperature and time, and also the best Co-Mo/Y zeolite impregnation condition for the conversion of coal tar. This research was conducted in several steps, impregnating Co from Co(NO3)2.6H2O and Mo from (NH4)6Mo7O24.4H2O into Zeolite Y in liquid media, drying at 100 °C for 24 hours, and calcination at 550 °C for 3 hours. Coal tar was then reacted with hydrogen gas (as a reactant), and Co-Mo/Zeolite Y (as a catalyst) was conducted at 350 °C. Characteristic analysis showed that Co and Mo had impregnated into the Y zeolite, as well as it made no change of catalyst’s structure and increased the total acidity. The higher of impregnation temperature was increased the catalyst crystallinity, total acidity, and yield of gasoline. The longer impregnation time was reduced crystallinity value, but total acidity and yield were increased. GC analysis showed that products included into the gasoline product (C8, C9, and C10). 
Co-Authors Afriza Ni'matus Sa'adah Anindita Indriana Anisa Widia Utami Antonio Giovanno Aprilina Purbasari Arif Budiarto Bintang Ayu Kalimantini Cantika Aulia Salsabila Chusnul Khotimah Diah Anggraeni Jatraningrum Dian Cahyaningrum Dyah Hesti Wardhani Dyah Hesti Wardhani Fachmy Adji Pangestu Setiawan Fadhil Rifqi P Faleh Setia Budi Fathoni, Moch Zaenal FatmaTsaniya Chamdani Febio Dalanta Ganish Eko Mayndra Giveni Christina Silaen H Hadiyanto H. Hadiyanto Hartuti Purnaweni Herawati Oktaviani Herawati Oktavianty Hermawan, Hermawan Herry Santosa I. Istadi Indro Sumantri Kamsi Nur Oktavia Kevin Aprilio Luqman B Luqman Buchori Lutfi Af’idatul Kamilah Melissa Justine Renjaan Muhamad, Theobroma Guntur Nerfiana Fradevi Nita A Nita Aryanti Nor Aishah Saidina Amin NUR HIDAYATI Nur Hidayati P Purwanto Pakpahan, Agnes J. Pakpahan, Andre W. S. Priyo Atmaji Putri Anggraeni Resti Nur Utami Riko Rikardo Putra Riko Rikardo Putra Riskatama Atmaji Rispiandi Rispiandi Riyanto, Teguh Rohmadona H S Subandriyo Saputra, Roni Ade Sari Octavianingrum Setia Budi S Setia Budi Sasongko Sigit B Silviana Silviana Slamet Supriyadi Teguh Riyanto Udin Mabruro Wahyu Bahari Setianto Wahyu Bahari Setianto Wibawa, Muhammad Hanif Dzikri Yayuk Astuti Yayuk Mundriyastutik Zaqiyah Addarojah Zulfikar Muriadiputra