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All Journal Natural Science: Journal of Science and Technology CHEMISTRY PROGRESS Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Jurnal Kesehatan Masyarakat Andalas (Andalas Journal of Public Health) al-Kimiya Bulletin of Chemical Reaction Engineering & Catalysis Jurnal Riset Kimia Konversi Akta Kimia Indonesia Unri Conference Series: Community Engagement Dinamika Lingkungan Indonesia Jurnal Rekayasa Kimia & Lingkungan
SYAIFUL BAHRI
Riau University
Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Public Health

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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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Abstract

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
Konversi Nila Nipah (Nypa Fruticans Wurmb) Menjadi Bio Oil Dengan Teknologi Pirolisis Menggunakan Katalis Ni/Lempung Muhammad Ismet; Syaiful Bahri; Yusnimar Yusnimar
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Fuel oil is a natural resource, due that needsare very important. Fuels are nonrenewable energy sources. Bio-oil is one of thealternative energy solutions that can be used as a subtitute for petroleum. Riau province has palm plantation area of 75459.26 Ha and is also rich in natural resources such as the potential of natural clay. Bio-oil can be produced from a palm frond by using pyrolisis process with catalyst Ni/clay. This study aimed to determine the effect of the catalyst Ni/clay variation toward the biomass, the influence of variations developing of metal toward clay and characterization of physical and chemical properties to the yield of bio-oil product. in this study the pyrolisis process carried out at a temperature of 320°C, 500 ml silinap, biomass 50 grams with the size of -100+200 mesh sieve and the variatio of catalyst Ni/clay by 0,4%, 0,5%, 0,6% w/w to the biomass and Ni metal carrier variation 0f 0%, 1%, 2%, 3% w/w of the clay. The research product bio-oil 72.072% of yields in 0,6% of catalyst and 1% of metal. The result of the analysis of physical properties of bio-oil obtained is the 0.924 gr/ml density, 2.351 cSt viscosity, acid number 70.218 mg NaOH/gr sample and 50°C flash point. Chemical properties analysis of bio-oil using GCMS (Gass Chromatography-Mass Spectroscopy) on the use of catalyst 0,6% and metal 1%obtained five dominant chemical compound that is 2-Methylpropene 2.84%, 2,4,4-Trimethyl-1-pentene 3.84%, 2,2,4,4-Tetramethylpentane 6.78%, cyclohexane,1bromo-4-methyl 8.13% and 2,4,4-Trimethyl-2-penten 5.11%.   Keyword: Bio-oil, pyrolysis, sheath Nipah, catalyst Ni / clay, Yield.
Fermentasi Larutan Glukosa Untuk Produksi Etanol Dengan Teknik Immobilisasi Sel Saccharomyces Cerevisiae Yeni Rizki; Syaiful Bahri; Chairul Chairul
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
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Ethanol or ethyl alcohol (C2H5OH) is an organic compound that is very important in the chemical industry and has many benefits in human life. One way of making ethanol is fermentation. Arising problem in the fermentation process is the inhibition of the ethanol product that will damage the structur of the plasma membrane and cause protein denaturation will result in inhibited microbial growth and lower productivity. In this research, the fermentation process of glucose solution with cell immobilization technique to obtain ethanol at higher levels. This research is aimed to study the process of making ethanol with cell immobilization technique and determine the effect of the initial sugar concentration and fermentation time of the acquisition of ethanol. Fermentation takes place in batch reactor with a volume of 2 liters of fermentation medium, heavy beads of 20% (w/v), pH 5,0. The fermentation process of glucose solution was done at various variation of fermentation time i.e 24, 36, 48, 60, 72, 84 and 96 hours and also various variations of concentration of glucose as the intial sugar i.e 100 mg/ml, 125 mg/ml and 150 mg/ml. The process was stired at speed of 200 rpm and temperature of fermentation at room temperature (25 – 30oC). Ethanol concentrations were analyzed using Gas Chromatography. From the result was obtained that the maximum fermentation process is show at glucose concentration of 150 mg/ml and fermentation time of 60 hours with ethanol concentration of 5,149% (v/v) or 40,647 mg/ml.Keywords : Ethanol, Fermentation, Immobilized Cells, Saccharomyces cereviceae.
Pembuatan Biodiesel Dari Biji Kapuk (Ceiba Pentandra) Dengan Katalis Padat H-Zeolit Afrielyanda H; Syaiful Bahri; Khairat Khairat
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
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Biodiesel as alternative diesel fuel made from renewable biological resources, such as vegetable oils and animal fats. In Indonesia, the fuel consumption is increasing every year, so often there is a shortage of fuel. Therefore, the latest innovations necessary to produce alternative energy such as biodiesel. In this research, the conversion of cotton seed oil to biodiesel was performed by using catalyst "H-zeolite". First, cotton seed is dried whole day in order to reduce the water content and then extracted using a solvent n-hexane. Then separate the solvent with oil until the oil obtained pure. Afterwards, cotton seed oil is converted into biodiesel using transesterification reaction with methanol as reagent and H-zeolite catalyst. Transesterification reaction is carried out at 600C temperature operating conditions, the stirring speed of 200 rpm and reaction time of 200 minutes. To get the maximum biodiesel, using variation the molar ratio of cotton seed oil and methanol (1: 3; 1: 6; 1: 9), the variation of the catalyst (1%, 2%, 3% w/w) were performed in this research . The results showed maximum biodiesel conversion of about 79.35%, the molar ratio of cotton seed oil and methanol 1: 9 and catalyst 2% of the total amount of oil. Based on the analysis of physical properties of biodiesel has a density of 859 kg / m3, 5.60 cSt viscosity, acid number 0.561 mg-KOH / g sample. In addition, analysis of the chemical properties of biodiesel from cotton seed oil using GC - MS.Keywords : Cotton seed oils, Biodiessel, H-zeolit catalyst, Transesterification reaction.
Penggunaan NI/NZA Sebagai Katalis Pada Proses Hidrodeoksigenasi Pirolisis Kulit Pinus (Pinus Merkussi Menjadi Bio-Oil Anna Apryana; Syaiful Bahri; Zuchra Helwani
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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Dependence on fossil fuels as an energy source brings us to the energy crisis. Therefore, it is necessary to reduce human dependence on non-renewable energy. One of them is to produce bio-oil from biomass are processed through hydrodeoxygenation pyrolysis technology. One type of biomass that can be used as raw material, namely energy sources pine bark which is a waste of the pine trees. This research aims to produce bio-oil from the bark of pine (pine merkussi) as an alternative fuel, studied the effect of the weight ratio of the catalyst Ni / NZA against biomass, studied the effect of impregnated metal Nickel (Ni) in Natural Zeolite deAluminated (NZA) and characterization of physical properties and the chemistry of the bio-oil is produced. Hydrodeoxygenation pyrolysis process is carried out at a temperature of 320 0C, silinap 500 ml, biomass 50 grams with a size of -100 + 200 mesh sieve, catalyst variation Ni / NZA of the biomass of 4%; 6% and 8% by weight and Ni metal impregnation variation of the Natural Zeolite deAluminated (NZA) of 0%; 1%; 2% and 3%. Results of this study produce bio-oil yields the largest on the use of the catalyst Ni / NZA 8% by weight of the metal content of 3% by 70.99%. Characterization of physical properties of bio-oil obtained in the form of density of 0.980 g / ml, 1,590 cSt viscosity, acidity 32.444 mg NaOH / gram sample, a flash point of 40 0C and calorific value of 44.509 MJ / kg. While the characterization of the chemical properties of bio-oil using Gas Chromatography-Mass Spectroscopy (GCMS) in the can several dominant chemical components such as acetic acid as much as 34.47%, 3-furaldehyde as much as 13.01%, 2-propanone as much as 12.46%, a 1.2-Ethanediol as much as 9:49% and 2-butanone as much as 6.26%.Keywords: Bio-Oil, Catalyst Ni/NZA, Hydrodeoxygenation Pyrolysis , Pine Bark
Pemanfaatan Limbah Medis Padat Infeksius RSUD Arifin Achmad Pekanbaru Dengan Teknik Solidifikasi Sebagai Campuran Batako Bunga Fitriani Gumadita; Syaiful Bahri; Elvi Yenie
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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Hospital solid medical waste contain hazardous and toxic materials. One way to manage solid medical waste is a mixed hospital as one of the ingredients in the manufacture of concrete blocks. The purpose of this study was to test the initial testing and the final content of cadmium (Cd) and chromium (Cr) heavy metals through the test the concentration of heavy metals, and to test the compressive strength of concrete blocks. In this research, the B3 waste treatment method using solidification technology by varying the 0%, 10%, 20%, 30% and drying time 14, 21 and 28 days and the test concentrations of heavy metals. The results showed that in terms of compressive strength 28 days, brick with a variation of 10% of age 14 days 105 kg/ cm2, 10% aged 21 days 135 kg/cm2 and 10% u it 28 days to 200 kg/cm2 where it is strong pressure to rise. From the test results are known concentrations of heavy metals mostly heavy metal content is 30% at 0.00034 ppm Cd of 0.180 ppm after disolidifikasi. Likewise, 30% of heavy metals in Cr is 8.509 ppm 0,044 ppm of immobilized so well that solid infectious medical waste can be used as a mixture of brick that is safe for the environment.Keywords: Infectious Medical Waste Solid, brick, Compressive Strength, Solidification, Heavy Metal Concentration Test.
Pirolisis Biomassa Kayu Pinus (Wood Pine) Dengan Katalis Mo/Lempung Menjadi Bio-Oil M Arfi Adharyandy Firman; Syaiful Bahri; Khairat Khairat
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
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Indonesia high dependence on fossil fuels from year to year makes the conditions of dwindling fossil fuel reserves. This condition implies the need to optimize the use of renewable energy in order to maintain the availability of energy in the future. An alternative of renewable energy and eco friendly bio-oil. Bio-oil can be produced by pyrolysis process of the pine wood biomass with a Mo/Clay catalyst. This research examines the influence of variations containing Mo (0%, 1%, 2% and 3% w/w) and variations in the weight of the catalyst, Mo/clay (3%, 5% and 7% w/w) in the pyrolysis determine fir wood into bio-oil against the yield obtained and determine the physical and chemical properties of the bio-oil produced from pine wood pyrolysis process. In this research, pine wood biomass, as much as 50 grams with a size of 100 mesh, silinap 500 ml, and the catalyst Mo/clay incorporated in the pyrolysis reactor. Pyrolysis is carried out at 320oC and 300 rpm stirring speed for 120 minutes carried out by flowing nitrogen gas (N2) as an inert gas. The results showed that the optimum yield 61.89% was obtained on the catalyst, Mo/Clay 5% w/w with Mo metal content of 3% w/w. The result of the physical and chemical properties, obtained by the density (0.967 g / ml), viscosity (6.459 cSt), acidity (105.282 mg NaOH / g sample) and flash point (48oC). The results of chemical composition analysis by GC-MS, chemical components of the dominant acquired bio-oil m methylcyclohexyl bromide 9.42%, 3-butene-1,2-diol, 1- (2-furyl) - 6.95%, 2,2,3,3-tetramethyl butane 6.12%, cis-2,2-dimethyl-4-decene and 4.58% 1-propene, 2-methyl, tetramer 3.78%Keywords: Biomass, bio-oil, Mo/ clay catalyst, wood pine, pyrolysis
Produksi Biodiesel Dari Minyak Nyamplung (Callophyllum Inophyllum) Menggunakan Katalis Lantanum/Lempung : Studi Pemgaruh Suhu Reaksi Raja Valti Mhd Siregar; Syaiful Bahri; Khairat Khairat
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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Biodiesel is an alternative energy to replace fossil fuels. It can be synthesized by transesterification process of palm oils. Commonly the process of producing biodiesel was used NaOH or KOH as homogeneous catalyst which has the disadvantage the formation of side products such as soaps and complexity of the separation of catalyst. Several research have developed that using heterogeneous catalys. Synthesis of biodiesel from callophyllum inophyllum oil using metal alloys lanthanum on clay as catalyst. This research studied the effect of temperature reaction with variations 55, 60, 65 oC to the yield of biodiesel produced, and to identifying the characteristics of biodiesel produced. This study begins activation of the catalyst in a way additions H2SO4, impregnation, calcination, oxidation and reduction. Furthermore, to remove impurities and gum contained in the oil was done the degumming process. After that, do the process of transesterification in the three neck flask reactor the mole ratio of methanol : oil 12: 1 and a reaction time 120 minutes. The result, highest biodiesel obtained amounted to 78.41% at the reaction temperature of 60 oC. Physical characterization of biodiesel were done such as density 857 kg/m3, kinematic viscosity 4.735 mm2/s, acid number 0.61 mg-KOH/g biodiesel and flash point 127.5 oC respectively which have accordance with the standards of Indonesian biodiesel (SNI 04-1782-2006).Keywords :La / clay, callophyllum inophyllum oil, degumming, transesterification, biodiesel
Pengolahan Air Gambut Untuk Menurunkan Kadar Besi Dan Mangan Dengan Proses Elektrokoagulasi Secara Kontiniu Adam Fadillah; Idral Amri; Syaiful Bahri
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
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Peat water from surface water or groundwater has high organic content and there is a metal content inside such as ferrous metals and Mn. Therefore it is necessary to do the processing by using electrocoagulation. The purpose of this study is to discuss the performance test of the electrocoagulation process continuously on the decrease of Fe and Mn levels and determine the optimum condition. The electrocoagulation process uses electric power that flows in the direction of the electrode. Electrocoagulation reactors paired with cables that connected the power supply to an electric current with varying voltages (18, 20, 22, and 24 volts) and variations in flow rate (4 and 6 lpm) are employed. The results of this study obtained the optimum conditions obtained at 24 volt voltage and 4 lpm flow rate with decrease of Fe by 89% from 2,909 mg/L to 0,322 mg/L and Mn equal to 92% from 0,232 m /L to 0,019 mg/L. Keywords: peat water, electrocoagulation, flow rate, continuous, voltage
Pembuatan Bio Oil Dari Kayu Cemara Laut (Causarina Equisetifolia L) Dengan Teknologi Pirolisis Menggunakan Katalis Ni/NZA Rahmansyah Rahmansyah; Syaiful Bahri; Amun Amri
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
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The fundamental problem of national energy today is the tendency of fossil energy consumption increasing, which is not offset by the availability of fossil energy itself. So that the necessary strategic steps to face the energy challenge in the future with the development of renewable energy. One of them by converting biomass into bio oil through pyrolysis technology with the aid of a catalyst. The aims of this research was to produce bio oil from casuarina wood (Causarina equisetifolia L), knowing the physical and chemical characteristics of the bio oil from casuarina wood, determine the effect of supported Ni metal on resulting yield bio oil. Pyrolysis process uses 50 grams of casuarina wood (-100+200 mesh), the catalyst Ni/NZA with metal variation (0%, 2%, 3% w/w) and the variation amount (2%, 3%, 4% w/w), silinap 500 ml, carried out at a temperature 320 0C, stirring speed of 300 rpm by flowing nitrogen gas. The highest yield obtained on 2% of uses catalyst and 3% of Ni metal of 58,058%. Characteristics of the resulting bio oil, in the form of density 1,001 gr/mL, 6,761 cSt viscosity, acid number 17,760 mg NaOH/gr, and the flash point 48 oC.Keywords: bio oil, Causarina equisetifolia wood, Ni/NZA catalyst, pyrolysis
Co-Authors ', B. Isyandi ' -, Sunarno Abd. Rasyid Syamsuri Adam Fadillah Adelina Samosir Adita Sukma Ramadhania Afria Anggreini Afrielyanda H Agung Abadi Kiswandono Almasdi Syahza Aman aman Amilia Linggawati Amun Amri Andi Mulya Adha Anna Apryana Anwar Sumianto Arbhy Indera Ikhwansyah Ari Aditia Sukma Aria Gusti Aulia Rahman Aura Dhayang Fiarizky Bernard Isyandi Brilliant Asmit Bunga Fitriani Gumadita Chairul Chairul Chairul Chairul Dedi Afandi Dedi Afandi Dhani Nur Miftahudin Dian Agustin Djaimi Bakce Edwidya Ocktaviani Armay Edy Saputra Ekadian Lestari Simatupang Ella Awaltanova Elvi Yenie, Elvi Erlisa Yanuari Putri Fathiyah Zulfahni Febrian, Ramadhoni Feby Pratama Nugraha Feni Nopriza Firman syah Fistiyanti, Davinta Fitriani Fitriani Ganjar Andhulangi Genardus Oktavri Sijabat Hade Karimata Hadyan Sartoni Haryo Satriya Oktaviano Hasnul Bustaman Hedri Yanti Hesty Rodlotu Yula Husna, Zakiyatul Ibnu Oktariza Idral Amri Inget Yester Yunanda Irdoni Irdoni Irnaliah, Irnaliah Irwan Irwan Iswadi Idris James Becker Jefriadi Jefriadi Karina Octaria Putri Khairat Khairat Khairat, Khairat Khairul, Anapuja Laila Kusmiati Lisna Efiyanti M Arfi Adharyandy Firman Meliagustin, Adilla Mhd. Reza Pahlepi Miftahudin, Dhani Nur Mita Rilyanti Mitri Irianti Muhammad Disro Muhammad Ismet muhammad rizky, muhammad Muhammad Sulthon Siregar Muhdarina . Muhdarina Muhdarina Musbar, Al Swendo Nia Meisa Wulandari Nova Dwi Safitir Nurhaeni Nurhaeni Nurhasanah Nurhasanah Nurhayati Nurhayati Nurhayati, Nurhayati Nurlis Nurlis Oci Khairani Putri Azizah Putri, Karina Octaria R. Supriyanto R.Y, Silvia Rahmah, Yulia Rahmansyah Rahmansyah Raja Valti Mhd Siregar Rajib Azri Ranum Anggun Sari, Ranum Anggun Ratna Dian Armalita Regina Gita Riani Dio Renia Navivin Ridho Fahrozi Rinawati Rinawati Rinny Jelita Rino Hasanatul Isra Rizka Aulia Hardi, Rizka Aulia RM Riadi Romie Zulfadli Saputra, Adika Sari Rahma Yanti Savitri Larasati Setiadi, Fydel Setianingsih, Ayu Silvi Puteri Anggraini Silvia R.Y siti rahmah Subangkit Julio Jaya Sukiman Hernanda Sunarno Sunarno - Sunarno Sunarno Surya Romadani Syamsu Herman T. Ariful Amri Taufik Kharnofa Tresia Monika Natalia Sinaga Utama, Panca Setia Wega Trisunaryanti Wisrayetti Wisrayetti Wisrayetti, Wisrayetti Yatim Lailun Ni’mah Yelmida Azis Yeni Rizki Yenni Octavia Yopalim Zanstra Yuli Ambarwati Yulianti Yulianti Yuliati Eka Putri Yuliatmi Yuliatmi Yumna, Nada Ibtihal Yusnimar Sahan Yusnimar Yusnimar Yusnimar Yusnimar, Yusnimar Zetria Pujiana Zipora Sembiring Zuchra Helwani Zuchra Helwani, Zuchra