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All Journal Media Teknik Sipil International Journal of Renewable Energy Development Jurnal Penelitian dan Pengembangan Pendidikan Jurnal Natur Indonesia CHEMICA Jurnal Teknik Kimia Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains JOURNAL ONLINE OF PHYSICS Jurnal Teknik Chimica et Natura Acta Juring (Journal for Research in Mathematics Learning) BAREKENG: Jurnal Ilmu Matematika dan Terapan Al-'Adl JURNAL PHOTON PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Math Educa Journal Turast: Jurnal Penelitian dan Pengabdian JRTI (Jurnal Riset Tindakan Indonesia) ALGORITMA : Journal of Mathematics Education Jurnal Ilmiah Pendidikan Matematika Al Qalasadi Al-Qadha: Jurnal Hukum Islam dan Perundang-Undangan Unri Conference Series: Community Engagement Asimetris: Pendidikan Matematika dan Sains Journal of Applied Materials and Technology TA'DIB Jurnal Pemikiran Pendidikan Journal of Bioprocess Chemical and Environmental Engineering Science Jurnal Riset dan Aplikasi Mahasiswa Informatika (JRAMI) Jurnal Teknologi Lingkungan Lahan Basah Jurnal Pengabdian Masyarakat As-salam SAINSTEK Jumper : Journal of Educational Multidisciplinary Research Jurnal Rekayasa Komputasi Terapan National Multidisciplinary Sciences Jurnal El-Hadhary: Jurnal Penelitian Pendidikan Multidisiplin AT-TABAYYUN: Journal Islamic Studies JURNAL REKAYASA KIMIA & LINGKUNGAN
Edy Saputra
Universitas Riau
Religion Agriculture, Biological Sciences & Forestry Arts Humanities 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 Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Nursing Physics Public Health Social Sciences Transportation Other

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Journal : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Sintesis Fly Ash Yang Diimpregnasi Dengan Na2O Sebagai Katalis Pada Proses Transesterifikasi Minyak Sawit Off-Grade Menjadi Biodiesel S, Prasetyo Arva; Helwani, Zuchra; Saputra, Edy
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Biodiesel is one of renewable energy in Indonesia that have to be development. Biodiesel formed as liquid fuel and has same property with petrodiesel. Biodiesel can be synthesized from off-grade palm oil using Na2O/fly ash as catalyst in transesterification process. Employing fly ash as support in Na2O has a good impact due to provide wide surface of catalyst. In this study aims to see the influence of reaction temperature, molar ratio of methanol and oil and concentration of Na2O/fly ash towards biodiesel yield. The process was conducted through reaction of esterification and followed by transesterification reaction. Processing of the data in this study was conducted by response surface methodology (RSM) using Design Expert 7.0 program which is experimental design determined by central composite design (CCD) which consists of three variables. The highest result of biodiesel yield was 81,2% at 60oC reaction temperature, molar ratio of methanol : oil 8 : 1 and catalyst concentration of Na2O/fly ash 4%-wt. Biodiesel characteristics such as density, kinematic viscosity, acid value and flash point has been appropriate by Indonesian biodiesel standard. The most significant condition of process affecting the yield of biodiesel was catalyst concentration.Keywords : biodiesel, catalyst, fly ash, off-grade palm oil, transesterification
Sintesis Biodiesel Dari Minyak Nyamplung (Calophyllum Inophyllum) Menggunakan Katalis Geopolimer: Pengaruh Konsentrasi Katalis Dan Rasio Mol Minyak:Metanol Sugesti, Heni; Saputra, Edy; Helwani, Zuchra
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Biodiesel is a product of transesterification reaction fat/oil and methanol with the aid of catalyst. Catalysts is commonly used in the production of biodiesel is strong base catalysts such as NaOH and KOH which is difficult to separate from the product of the reaction because it has the same phase as the reactant. Therefore, it is necessary to develop catalyst technology in order to get the production process becomes more economical, applicable and environmentally friendly, one of the catalyst is geopolymer. Geopolymers are synthesized by reacting potassium silicate, metakaolin, and bottom ash. Geopolymers is used in transesterification reaction. The process variables are weight of oil 50 grams, stirring rate 400 rpm, reaction time 120 minutes, and temperature of 65 oC, with catalyst 2% (w/w) and mole ratio of methanol:oil 1:12. The yield of biodiesel 96.62% with density 878.3 kg/m3, viscosity 4.395 mm2/s, the acid number of 0.3575 mg-KOH/g biodiesel and the flash point 134.25 °C comply with the SNI standards (SNI 7182: 2015).Keywords: biodiesel, calophyllum inophyllum oil, geopolymer, transesterification, yield
Sifat - Sifat Fisik Mortar Geopolimer Dengan Bahan Dasar Campuran Abu Terbang (Fly Ash) Dan Abu Sawit (Palm Oil Fuel Ash) Islami, Aldi Nauri; Olivia, Monita; Saputra, Edy
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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This research study about characteristic of physical of mortar geopolimer from blend of fly ash and palm oil fuel ash. Alkaline activator solution used to processed the activation of Silica (Si) and Alumina (Al) which implied in both types of the ash mixture from NaOH 14 M and liquid of natrium silicate (Na2SiO3). Proportion the blended fly ash and palm oil fuel ash ratios of 100:0, 25:75, 50:50, 75:25, and 0:100. Sand to blended ash by mass ratios of 2,75:1. Sampel out 5x5x5 cm on cube geopolymer. This research is used mix with the activator modulus 1,00 and 1,25, activator dosage (%Na2O) 22,5, cured at room temperature at 3 days and heat curedt 110ºC for 24 hours then cured at room temperature for 7 day. Result from this research represents compressive strength the mortar as according to variation blended ash. Compressive strength will mount as according to modulus of activator and activator dose with the correct combination blended ash.Keywords : geopolymer, fly ash, palm oil fuel ash, activator modulus, mix proportions
Pengaruh Suhu Co-Pyrolysis Limbah Ban Bekas Dan Tandan Kosong Sawit Terhadap Yield Bio-Oil Nasution, Ahmadani; Sunarno, Sunarno; Saputra, Edy
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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The decline in fossil fuel sources encourages research to find alternative fuels. One of the efforts currently being to find alternative energy sources that have high efficiency and environmental friendly is bio-oil from empty fruit bunches (EFB) and tire waste. This research aims to determine effect of temperature co-pyrolysis of EFB and tire waste on yield bio-oil and then characterize the physics at the highest yield. In this study, the ratio of EFB/tire (R) was 25/75 with an operating temperature of 400°C, 450°C, 500°C, 550°C and 600°C which supplied nitrogen gas of 200 ml/minute for 90 minutes. Bio-oil with highest yield obtained from a temperature of 500°C ie 44.3% with density, viscosity, calorific value, and degree of acidity (pH), respectively 0.994 g/ml, 1.53 cSt, 40.31 MJ/kg and pH 3.39. Keywords: alternative energy, bio-oil, co-pyrolysis, EFB, tire
Prarancangan Pabrik Metanol Dengan Proses Lurgi-Low Pressure Methanol Dengan Disain Alat Utama Reaktor Syntesis Methanol (R-03) Saleh, Muhammad; Saputra, Edy
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Methanol is often called methyl alcohol with the chemical formula CH3OH. Methanol is commonly used for solvents, anti-freezing refrigerants, and fuels. Methanol is also an intermediate compound that is used as raw material for various industries including acetic acid, formaldehyde, MTBE, polyvinyl, polyester, and DME industries. The need for methanol in Indonesia continues to increase. The raw material used in this methanol plant design is natural gas. This methanol plant will operate for 330 days per year with a continuous work of 24 hours/day and a capacity of 200,000 tons/year which will be established in Dumai, Riau. The main equipment design in this plant is the Reactor Syntesis Methanol which functions to form methanol in the form of syntesis gas as carbon monoxide (CO), carbon dioxide (CO2) and hydrogen (H2) with the help of H2O. The Syntesis Methanol Reactor is operated at a pressure of 50 bar and a temperature of 250 ° C. The economic analysis on the design of this plant shows that the Methanol plant with the Lurgi Low Pressure process is feasible to be built with the profit after tax of Rp8,190,624,006,578 and the factory Payback Period (PBP) of 3.1 years.Keywords: Lurgi Low Pressure Process, Methanol, Natural Gas, Syntesis Gas, Syntesis Methanol Reactor
Penggunaan Katalis Fly Ash Yang Diimpregnasi Dengan CaO Dari Ca(NO3)2 Pada Tahap Transesterifikasi Minyak Sawit Off-Grade Menjadi Biodiesel Nugraha, Putra Zelly; Helwani, Zuchra; Saputra, Edy
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The synthesis of biodiesel from off-grade palm oil needs the help of CaO/fly ash during the transesterification step. CaO with high basicity and acts as a good catalyst. The use of fly ash as the support of CaO catalyst has several benefits because it is safe for the environment, it adds economical value, and Ca inside the fly ash itself can be utilized. The synthesis of biodiesel in this research aims to observe the effect of reaction temperature, molar ratio of methanol : oil, and the effect of CaO/fly ash concentration towards biodiesel yield. The synthesis of biodiesel is performed through esterification reaction to reduce the amount of free fatty acid content in oil, and is continued by transesterification reaction to produce biodiesel. Data processing in this research is conducted using Response Surface Methodology (RSM) with the help of Design Expert 7.0 software, while experimental design is determined using Central Composite Design (CCD) which consists of 3 variables. The highest biodiesel yield is 61.72% with a reaction temperature of 60oC, methanol : oil ratio of 8:1, and CaO/fly ash catalyst concentration of 7 %wt. Biodiesel characteristics which consist of density, kinematics viscosity, acid value and flash point is consistent with Indonesia’s National Standards (SNI) of biodiesel. The variable which has the highest effect towards biodiesel yield is catalyst concentration.Key words : Biodiesel, Off-grade Palm Oil, Catalyst, Fly Ash, Transesterification.
Degradasi Methylene Blue Melalui Metode Fotokatalitik Menggunakan Covalent Triazine Framework-Copper (CTF-Cu) Sebagai Fotokatalis Siregar, Ricky Putra; Saputra, Edy; Utama, Panca Setia
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Textile industries in Indonesia have been growing year by year and have an important role in economic system. However, their enhancement raises environmental pollution because of their dye wastes. Either small-scale or large-scale contamination have massively spoiled some rivers in Indonesia, such as Ciliwung, Cisadane, and Bengawan Solo. Therefore, a special method like photocatalytic is highly needed to handle it. Photocatalytic method is able to degrade dyes quickly by producing hydroxyl radical (•OH) as a strong oxidant. One of the best photocatalysts to use is covalent triazine framework (CTF) with copper (Cu) as catalyst doping synthesized by using an ionothermal method. Photocatalytic degradation of methylene blue reached the highest degradation performance 95,02%. Keywords: textile, photocatalytic, hydroxyl radical, covalent triazine framework, ionothermal
Konversi Waste Cooking Oil (WCO) Menjadi Biodiesel Menggunakan Katalis Basa Heterogen Na2O/Fe3O4 Simarmata, Hery Fiza; Saputra, Edy; Irdoni, Irdoni
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Heterogeneous catalysts in transesterification has been used to biodiesel production because have many advantages. This research aims to synthesize heterogeneous base catalyst Na2O/Fe3O4 which will be used in transesterification reaction for production of biodiesel. Catalyst Na2O/Fe3O4 was synthesized from sodium hydroxide (NaOH) and iron powder using wet impregnation method. The independent variables of this research are molar ratio of WCO/methanol 1:6, 1:8, 1:10, and loading catalyst Na2O/Fe3O4 3%, 4%, 5%-w WCO. These variables are to determine the yield crude biodiesel. Reaction temperature is 60°C (±2) for 2 hours, under stirring 300 rpm. The highest yield of biodiesel is 95.45% under the transesterification methanol/WCO molar ratio 1:10, loading catalyst 3%-w.Keywords: Biodiesel, esterification, catalyst, heterogeneous, transesterification, WCO
Pembuatan Biodiesel Dari Minyak Biji Kapuk (Ceiba Pentandra) Dengan Katalis Lempung Teraktivasi; Pengaruh Kecepatan Pengadukan Putri, Erlisa Yanuari; Bahri, Syaiful; Saputra, Edy
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5, No 1 (2018): Wisuda April Tahun 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Biodiesel producted by transesterifiation reaction which on energy source. Biodiesel was developed in Indonesia as an anticipatis of energy crisis problem suppported by goverment national energy policy. This research is aimed to make biodiesel from cotton seed oil, studying the effect of agitation speed to the amount of biodiesel produced and determined the best catalyst activated by acid or base, and determined the characteristics of biodiesel produced. The transesterification process was occured at a temperature of 60oC, on weight of oil 100 grams, reaction time 1,5 hours, mole ratio of oil to methanol 1 : 9, catalyst concentration 0,5% -weight of oil for varions of agitation rate 400, 500 and 600 rpm, and variations of catalyst acid 0,47, 0,62 and 0,78% and alkaline activated with a concentration of 0,33, 0,44 and 0,66%. From the result was obtained the highest biodiesel yield of 95,45% for alkaline activated 0,66% for agitation speed of 400 rpm. Characterization of physical properties of biodiesel obtained here density of 878 kg/m3, 3,03 mm2/s kinematic viscosity, acid number 0.34 mg KOH/g sample, and the flash point 195oC.Keywords: biodiesel, clay catalysts, activation of acids and bases, transesterification
Pengolahan Limbah Cair Sawit Dengan Metode Aop (Advanced Oxidation Process) Menggunakan Katalis LaMnO3 Perovskite Dengan Variasi Oksidan Peroxymonosulfate Hasrul, Hasrul; Saputra, Edy; Khairat, Khairat
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5, No 1 (2018): Wisuda April Tahun 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Processing of palm oil into Crude Palm Oil (CPO) will produce a large amount of liquid waste. To produce a ton of crude palm oil (CPO) produced 6 m3 of palm oil mill effluent. In this study, a process for removing organic compounds in wastewater using the advanced oxidation process by combining peroxymonosulfate (2KHS5.KHSO4.K2SO4) and a catalyst of LaMnO3 Perovskite. The combination will produce sulfate free radicals that capable degrading harmful organic compounds in effluent effectively. Nanocrystalline LaMnO3 was obtained by calcination at a temperature of 800 °C for 2 hours with an average crystal diameter of the highest peak of 17 μm in the shape of the Rhombohedral catalyst and the catalyst has qualified the catalyst with a nanoparticle structure. Several variations of oxidation process variables were performed to assess their effect on organic matter decline. Some fixed variables were oxidation reaction temperature 30 oC, reaction time 120 min, stirring speed 400 rpm, and concentration of peroxymonosulfate solution 2 g/L and catalyst concentration 0,4 g / L. Conclution of this research is efficiency of 63.54 % for decreasing COD and efficiency by 27,4% for TOC reduction. This proved that the LaMnO3 catalyst is capable of activating peroxymonosulfate.Keywords : AOP, LaMnO3 Perovskite, Oxidation, Peroxymonosulfate
Co-Authors A.A. Ketut Agung Cahyawan W Abdulah Pakarti, Muhammad Husni Abid, Hussein Rasool Ahmad Fadli Ahmad, Nurul Qomariyah Aldi Nauri Islami, Aldi Nauri Ali Imron Rusadi Amir Awaluddin Amun Amri Anggraini, Diva Putri Apriani, Isna Apriliani, Marissa Ari Sandhyavitri Ayu Putri, Radin Azhar, Muhammad Rizwan Bahar, Helmi Bahri, Saiful Barata Aditya Prawiranegara bettri yustinaningrum, bettri Chairul Chairul Chairul, Chairul Chatarina Umbul Wahyuni Desi Heltina Edward Hs Ekky Wahyudi Erman Taer EVELYN EVELYN Fachran Putra Deraf, Ivano Fajar Restuhadi Feblil Huda Firnanda, Ridho Muhammad Frimacia, Tifanny Gunawan Wibisono Ha-Ming Ang, Ha-Ming Hafiz, Fadlillahi Hagus Tizia Hanafi, Muhammad Rifter Harahap, Ahmad Yunus Mokoginta Harnedi, Joni Harriad Akbar Syarif, Harriad Akbar Hasrul Hasrul, Hasrul Heni Sugesti Hery Fiza Simarmata, Hery Fiza Hongqi Sun, Hongqi Husain Husain Husna, Misratul Ilahi, Aulia Nur Imanuel Tumanggor Irdoni Irdoni Ismayanti Ismeddyanto, Ismeddiyanto Jhon Armedi Pinem Jhon Armedi Pinem Joni Iswan Julnaidi Julnaidi Kadir, Taqyuddin Khairat, Khairat Khairat, Khairat Koesmawan, Koesmawan Komalasari Komalasari Laila Maharani Lisnasari, Andi Anita Lubis, Nur Ainun Marlina Marlina Maulizar, Hera Miranti Miranti Monita Olivia Moses O. Tadé Muhammad Saleh Muhdarina Muhdarina Muhdarina Musradinur Musradinur Mustafa Kamal Nasution, Mustafa Kamal Mutamima, Anisa Nasution, Ahmadani Niko Rizaldi Noor, Tajuddin Novia Sellyna Noviani, Julia Nurfatihayati Nurhayati Nurhayati Nurhayati Olsy, Fradilla Parulian, Dudi Prasetya, Prasetya Prasetyo Arva S, Prasetyo Arva Prawiranegara, Barata Aditya Putra Zelly Nugraha, Putra Zelly Putra, Yogi Lesmana Putri, Erlisa Yanuari Putri, Nur Rohmah Oktaviani Putri, Radin Ayu Rahman, Dui Yanto Rakhmyta, Yunie Amalia Riandy, M Arief Rita Yulismawati Rizha, Fachrur Rosita Wati Rosmawati Harahap Rozanna Sri Irianty Saiful Bahri Saputra, Rio Sarah Sarah Sarah, Sarah Sari, Ronna Puspita Sarmento, Amândio de Araújo Septian, Rizki Eka Setia Utama, Panca Shaobin Wang Silvia Reni Yenti Silvia Reni Yenti Siregar, Ricky Putra Siregar, Siti Saidah Sri Purwanti Nasution, Sri Purwanti Sugesti, Heni Sulistyowati, Rita Surya, Andry Pratama Suwarni Syafi’i, Abdullah SYAIFUL BAHRI Syaifullah Muhammad Syamsu Herman Syelvia Putri Utami Titania Tjandrawati Nugroho Tukiyo Tumanggor, Imanuel Umar, Ali Utama, Panca Setia Wahyudi, Ekky Wahyuni, Septia Wandala Adi Putra Winardi Winardi Wisrayetti Wisrayetti Yelmida Azis Yuana Nurulita Yudi Sandro Bara Tondang Yusnimar Sahan Zuchra Helwani, Zuchra Zultiniar Zultiniar Zultiniar, Zultiniar Zultiniar, Zultiniar