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All Journal Jurnal Sains dan Teknologi Proceedings of Annual International Conference Syiah Kuala University - Life Sciences & Engineering Chapter Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Jurnal Teknik Jurnal Serunai Bahasa Indonesia Unri Conference Series: Community Engagement International Journal of Economic, Business, Accounting, Agriculture Management and Sharia Administration (IJEBAS) Jurnal Transformasi Administrasi Catimore: Jurnal Pengabdian Kepada Masyarakat International Conference on Health Science, Green Economics, Educational Review and Technology (IHERT) Jurnal Teknologi & Rekayasa Sipil Jurnal Infinity
Edy Saputra
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Arts Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Social Sciences Other

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Prarancangan Pabrik Metanol Proses Lurgi-Low Pressure Methanol Dengan Disain Alat Utama Destilasi Metanol Reno Susanto; Edy Saputra
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 1 Januari s/d Juni 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Domestic demand for methanol continues to increase, it was recorded that in 2018 Indonesia imported 701,291.5 tons of methanol, which was the highest import compared to previous years. Methanol is widely used globally for industrial applications including acetic acid, formaldehyde, MTBE, polyvinyl, polyester and DME industries. The main raw material used in the manufacture of methanol with the Low Lurgi Pressure process is natural gas. This factory is planned to operate for 330 days per year and work continuously for 24 hours / day with a capacity of 200,000 tons / year which will be established in the Pelintung Industrial area, Dumai, Riau. The remaining time during the operation process is used for shutdown, plant maintenance, maintenance and repair of equipment. The design of the main equipment in this plant is the Methanol Distillation which functions to separate methanol from water. The distillation tower is operated at a pressure of 1 Bar and a temperature of 95 ° C. The economic analysis in this plant design shows that the methanol plant with the lurgi-low pressure methanol process with the main methanol distillation tool design is feasible to be established with a BEP value of 41% and a Payback Period (PBP). ) 3,008 years factory. Keywords: Methanol, Economic Analysis, Natural Gas,
Sintesis Katalis Basa Na2SiO3/Fe3O4 Untuk Reaksi Transesterifikasi Waste Cooking Oil (WCO) Menjadi Biodiesel Tarsensius Wabady Happy Limbong; Edy Saputra; Khairat Khairat
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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This research aims to derive biodiesel from waste cooking oil (WCO) through transesterification using heterogeneous base catalyst Na2SiO3/Fe3O4. Catalyst Na2SiO3/Fe3O4 was synthesized from fly ash palm oil, sodium hydroxide, and iron powder. Tranesterification operated under reaction temperature is 60°C (±2) for 2 hours, with stirring 300 rpm. The highest yield of biodiesel is 95.83% under the transesterification methanol/WCO molar ratio 1:10, loading catalyst 3%-w. Density (40°C) of biodiesel is 886.85 kg/m3, kinematic viscosity (40°C) is 5.87 mm2/s, flash point is 204°C, acid value is 0.74 mg-KOH/g-biodiesel, and water content is 0.36%.Keyword: Biodiesel, Esterification, Catalyst, Transesterification, WCO.
Degradasi Zat Warna Artifisial Limbah Tekstil Dengan Advanced Oxidation Processes Menggunakan Katalis Nanopartikel Ce/Karbon Farhiz Lagan; Edy Saputra; Chairul Chairul
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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One of the innovation textile waste processing is advance oxidation processes using peroxymonosulfate and catalyst nanoparticle Ce/carbon. This study was aimed to decrease content of artificial dye waste and determined the optimum conditions by using catalyst nanoparticle Ce/carbon. Catalyst synthesis was processed in hydrothermal autoclave at temperature 1800C for 18 hours, it convert D-glucose into black carbon, then impregnated with catalyst metal Ce by 3% and 5% by weight, after that catalyst calcined by N2 at temperature 5000C for 4 hours. Adsorption of artificial dye textile waste was held 25 ppm for 2 hours with concentration of catalyst 0,4 gr/L. The optimum adsorption of artificial dye textile waste with catalyst concentration 0,4 gr/L was is 12,921 with adsorption percentage reached 48,32%.Keyword: advanced oxidation processes, nanopartikel Ce/carbon, dye
Coating Scaffold Hidroksiapatit Dengan Kitosan Menggunakan Metode DIP - Coating Arosyidin Arosyidin; Ahmad Fadli; Edy Saputra
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Bone implants are a tissue replacement technique using synthetic materials that are compatible with body tissues. Materials that can be used as a bone implant one of them is hydroxyapatite scaffold (HA). However, most of the HA scaffolds still have one of the strongest compression values. To increase the compressive strength of the scaffold it must be coated with other polymers. One of the polymers that is biodegradable with the body is chitosan. HA scaffold coating method using dip - coating method by dissolving chitosan powder into acetic acid concentration 0,50%; 0.75% and 1.00% (w / v). Next, scaffold HA in coating with chitosan solution for 30, 45, 60 minutes. After coating, HA scaffold is dried at room temperature for 24 hours. The increase of chitosan concentration 0,50% to 0,75% can decrease the porosity that is 78% to 76% and pore size from 28,25 μm become 22,88 μm. Furthermore, the longer coating time required 30 minutes and 60 minutes then the greater the compressive strength of HA scaffold produced is 1.43 MPa to 4.05 MPa. The optimum condition of the operation is 0.75% chitosan concentration and 60 minutes coating time with a compressive strength value of 4.05 MPa.Keywords: chitosan, coating, compressive strength, hydroxyapatite, scaffold
Upgrading Crude Bio-Oil (CBO) Dari Biomassa Menjadi Upgrade Bio-Oil (UBO) Dengan Katalis Ni/Lempung Subangkit Julio Jaya; Syaiful Bahri; Edy Saputra
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Objective of this research is to upgrade quality of bio-oil product from biomass of acacia. In this study several parameters were determined such us determine the effect of temperature reaction and ethanol : bio-oil ratio. And then compared physical and chemical characteristic of crude bio-oil (CBO) to upgraded bio-oil (UBO). In upgrading process, mixture of bio-oil and ethanol 36 gram, Ni/clay catalyst 0,3 gram, with variation of ethanol : bio-oil ratio are 5:1 (30 gram ethanol : 6 gram bio-oil), 3:1 (27:9) , 2:1 (24:12) and 1:1 (18:18) as well as temperature reaction variations are 60, 70 and 80 oC. The highest result on bio-oil yields 1:1 ratio and 60 oC was away 79,25% with calorific value increase from 3,784 into 18,339 MJ/kg. The dominant chemical components in crude bio-oil (CBO) such us aldehydes (58,91%), acids (13,43%) and esthers (12,26%) while in upgraded bio-oil (UBO) such us aldehydes (27,45%), phenols and furans (22,75%), alkanes and alkenes (19,48%), esthers (14,84%) and acids (1,53%) respectively. Keywords: bio-oil, upgrading bio-oil, crude bio-oil (CBO), upgraded bio-oil (UBO)
Produksi Biodiesel Dari Minyak Sawit Off Grade Menggunakan Katalis Na2O/Fe3O4 Pada Tahap Transesterifikasi Widya Yoesepha; Zuchra Helwani; Edy Saputra
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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Palm oil off grade is one of feedstock biodiesel from preparation of over done and decomposed palm oil. This palm oil off grade have >5% free fatty acid composition, therefore need two process to produce biodiesel that is esterification dan transesterification. The purpose of this research is to produce heterogen basic catalyst from iron powder impregnation with Na2O and study the effect of condition process variation. The variation of transesterification process is temperature (50oC, 60oC and 70oC), mole ratio of oil : methanol (1:6, 1:8 and 1:10) and catalyst concentration (1%-wt, 2%-wt and 3%-wt) as long as 3 hours. The result of this research was processed with Response Surface Methodology (RSM) and the number of steps was determined by Central Composite Design (CCD). The highest yield of biodiesel is 79,52% at temperature60oC, mole ratio oil : methanol 1:8 and catalyst concentration 2%-wt. The result showed that the catalyst concentration influencing the yield of biodiesel.Keywords: biodiesel, heterogen catalyst, palm oil off grade, response surface methodology, transesterification
Pengaruh Laju Alir CO2 Dan Suhu Pada Proses Presipitasi Silika Dengan Menggunakan Dispersan Polietilen Glikol Novi Purnama; Edy Saputra; Panca Setia Utama
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Precipitated silica can be synthesised from Palm Mill Oil Fly Ash (POMFA) by alkali extraction combined with sol-gel precipitation. Sodium hydroxide were used to extract silica from POMFA to produce sodium silicate. Silica was precipitated using CO2, the effect of CO2 flow rate and temperature on the precipitation process were studied. The CO2 flow rate of 100, 200, 300 and 400 mL/min and temperature of 60.70, 80, 90oC were used at the precipitation process, to enhance the characteristic of precipitated silica obtained, dispersant PEG-400 5% (v/v) was added. The CO2 flow rate was stopped when the silica began to precipitate and the stirring speed increase up to 1000 RPM for 90 minutes. Silica obtained, was separated from the filtrate using filter paper, washed with hot distilled water and then dried. The maximum yield of 81.01% was obtained at temperature of 70oC and a flow rate of 200 mL/min. The precipitated silica was characterised using XRF to determine silica composition and XRD to determine wether the precipitated silica is in amorphous form. The Scherrer equation was applied to estimate the primary particle diameter.Keywords: CO2, Precipitated, Silica, Temperature, Yield
Sintesis Biopelumas Dari Minyak Biji Karet : Pengaruh Rasio Molar Antara Etilen Glikol Dan Asam Lemak Serta Waktu Reaksi Esterifikasi Terhadap Yield Biopelumas Fenny Lasma Hilde S; Irdoni Irdoni; Edy Saputra
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
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Lubricants used to protect engine components from worn-out. Rubber seed oil is an oil that can not be consumed cause toxicthus potentially used as raw material for biolubricants. This research purposes to study the synthesis of biolubricants from rubber seed oil to observe the effect of rasio mol between fatty acid and time of esterification reaction to the yield of the product. The research was begun with the extraction of rubber seed to get the oil. Then, the oil was degumming to purify the oil from the gum. Next, the oil was hydrolysis to make fatty acid and glycerol. Furthermore, fatty acids will be esterified with etylen glycol on a mole ratio of 3:1, 6:1 and 9:1, and time reaction for 2,3 and 4 hours, stirring speed 180 rpm, and the reaction temperature is 150 oC. The yield raised with the increase of fatty acid rasio mol and time of reaction. The highest yield is 79,772 % at 4 hours time of reaction with 9:1 rasio mol fatty acid and etylene glycol at stirring speed of 180 rpm. Flash point of the biolubricant is 387°C, pour point 7°C, density 0,9143 g/ml and viscosity index amounted 162,329.Keywords: biolubricants, esterification, etylen glycol, rubber seed oil, yield
Sintesis Biodiesel Dari Minyak Biji Nyamplung (Calophyllum Inophyllum) Menggunakan Katalis Geopolimer Berbasis Kaolin Al Qarni Putra; Edy Saputra; Komalasari Komalasari
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Biodiesel is one of alternative energy which replace the fossil fuel as the product of transesterification of vegetable plants. Whole this time, the process of making biodiesel using homogeous catalyst NaOH or KOH which produce soap and hard to separate biodiesel product using catalyst as its disadvantages. Therefore, by using heterogen catalyst, researcher start to develop it using catalyst geopolymer in the oil of calophylluminophyllum seed. The objective of this research is making biodiesel from the oil of calophylluminophyllum seed, knowing the influence of geopolimer ctalyst toward the number of biodiesel that has been produced, knowing the best condition of making biodiesel and also identifying the charateristics of calophylluminophyllum seed oil. This research starts from raw material preparation which include mixing, heating, and refinement. Furthermore, degumming the calophylluminophyllum seed oil to remove impurities contained in the oil. The transesterification process of oil has done in different level of speed i.e 200, 300, 400 rpm respectively and various catalyst concentration i.e 1%, 2%, 3% respectively at methanol of oil mole ratio 9: 1 and the reaction temperature of 60 °C and a reaction time of 120 minutes. From the result was obtained that the highest biodiesel of 92,14% at the stiring speed 400 rpm with 2% concentration geopolymercatalyst. Physical characterization have done such as density 878 kg/m3, kinematic viscosity3,67 mm2/s, acid number 0,46mg-KOH/g biodiesel and flash point 137°C respectively according to the standard of Indonesian biodiesel (SNI 7182:2015).Keywords :Biodiesel, calohyllum inophyllum seed oil, geopolymer
Pirolisis Kulit Kayu Pinus (Merkusii) Menjadi Bio-Oil Dengan Katalis Mo/NZA Yuliati Eka Putri; Syaiful Bahri; Edy Saputra
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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Global issues becoming a serious discussion in the depletion of oil reserves and coal. Dependence at fuel on nonrenewable energy sources should be avoided, sooner or later energy sources will run out. We have to look for other sources of energy that can be updated to cope of with these problems. One of the alternative energy that can be developed bio-oil. Bio-oil is produced with the use of biomass by pyrolysis process. The purpose of this research is to determine the effect of Mo metal on the catalyst Mo / NZA as well as influence of the catalyst on the bio-oil produced. Physical properties such as density, viscosity, acidity and a flash point of bio-oil were measured. And the chemical components of the bio-oil measured by GC-MS method. Pyrolysis using pine bark as much as 50 grams along with 500 ml silinap with variations Mo metal to NZA 0%; 0,5%; 1% and 1,5% w / w and the weight variation of the catalyst Mo/NZA 3%, 6% and 9% of the biomass. The process having stirring speed of 300 rpm and temperature of 320ºC for 120 min. The Highest yield of bio-oil obtained of 1,5% catalyst Mo/NZA with 9% of the amount of catalyst was 67,16%. From physical analysis conducted on bio-oil were obtained: density 0,781 g/ml, viscosity 2,094 cSt, acidity 20,906 mg NaOH/g sample, and the flash point 52 oC respectively. From the GC-MS analysis, the dominant chemical components at bio-oil is a 1-Propene (12,19%), 2-Pentene (8,2%), Pentane (10,54%), Cyclohexane (13,78%) and Heptane (3,52%) respectively.Keywords : Bio-oil, Mo/NZA, Pine bark, Pyrolysis
Co-Authors Abdullah Syafi’i Ade Anggriawan Affananda Taufik Agustinus Lamhot Viraro Ahmad Fadli Ahmad Zaki Al Qarni Putra Aldi Okta Priyatna Amin Fitra Amir Awaluddin Andes Sagita Arbhy Indera Ikhwansyah Arif Kurnia Arosyidin Arosyidin Bahruddin Chairul Chairul Charismayani Charismayani David Andrio Delvi Yolanda Denny Elisabet Situmeang Desly Fadilla Simbolon Eka Putri Sriandriani Eka Trisnawati Ekadian Lestari Simatupang Ekky Wahyudi Enang Vovilya Eri Kaiyul Erlisa Yanuari Putri Evelyn Evelyn Farhiz Lagan Febrian Adhitya Fenny Lasma Hilde S Fitriani Fitriani Fitry Rahmah Ganis Kharisma Wiranti Genardus Oktavri Sijabat Gusti Ayu Nurjanah Hade Karimata Hafizah Hasrul Hasrul Heru Kristianto Hery Fiza Simarmata Ilok Dianggoni Imelda Dewi Agusti Inget Yester Yunanda Irdoni Irdoni Ismeddyanto, Ismeddiyanto Ismi Siska Rahmayani Jhon Armedi Pinem Jhon Fery Marihot Tua S Kartika Pratama Syafitri Khairat Khairat Kiki Farida Ferine Komalasari Komalasari Lita Darmayanti Lora Mona Tambunan M Arief Riandy M. Isa Indrawan M. Wahyu Nugraha Magfirah Marihot Danield Vyendri Simatupang Miguel Felix Wijaya Mohd Fajri Amrullah Monita Olivia Moses O. Tadé Muhammad Rahman Mustapa Ardi Nani Agustina Nazily Haryati Niko Rizaldi Nissa Aqhilla Nova Dwi Safitir Novi Purnama Nuraina Siregar Nurhasanah Nurhasanah Nurlis Nurlis Nurul Afifah Peji Nopeles Rahman Fikri Redol Sianturi Reno Susanto Rianti Ratna Dewi Rio Akbar Rio Saputra Rizaldi Riski Irawan Rozanna Sri Irianty Shaobin Wang Shaobin Wang Sitanggang, Ronal Rius Solly Aryza Sri Meilani Sri Ulina Beru Ginting Subangkit Julio Jaya SYAIFUL BAHRI Syaiful Bahri Syaifullah Muhammad Syaifullah Muhammad Syarfi Daud Syarfi Syarfi Syelvia Putri Utami Tarsensius Wabady Happy Limbong Tejo Yulandi Tresia Monika Natalia Sinaga Trisuciati Syahwardini Utama, Panca Setia Viqrie Wahyudi Wahyu Muhammad Firdaus Wahyuni Zumara Wali Ara Widya Yoesepha Windy Nila Hakim Yelmida Azis Yudhi Salman Dwi Satya Yuliati Eka Putri Yunita Selonika Zuchra Helwani Zultiniar Zultiniar