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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

Author-ID : 483411

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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Hubungan Pengetahuan, Sikap dan Intensi Perilaku Pengelolaan Sampah Berkelanjutan Pada Siswa Sekolah Dasar di Kota Padang Aria Gusti; B Isyandi; Syaiful Bahri; Dedi Afandi
Dinamika Lingkungan Indonesia Vol 2, No 2 (2015)
Publisher : Universitas Riau

This studi examined the behavioral intention of sustainable waste management inelementary school student using the framework of Theory of Planned Behavior. The objectiveof this study was to know the relationship of knowledge, attitude, and the behavioral intentionof sustainable waste management. Population and sample in this study were elementaryschool students in the Padang City, West Sumatra. The data collected for this study wereanalyzed using Structural Equation Modeling (SEM). The results of this study stated that theknowledge about sustainable waste management has a significant relationship with attitudestowards sustainable waste management. Knowledge and attitudes towards sustainable wastemanagement had a significant association with the behavioral intention of sustainable wastemanagement. These findings have important implications for the school as well as for policymakers.

Efek Aktivasi H2SO4 Terhadap Lempung Sebagai Katalis Dalam Pembuatan Biodiesel Dari Crude Palm Oil (CPO) Muhammad Disro; Syaiful Bahri; Khairat Khairat
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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Indonesia petroleum consumed are increasing, while hot Indonesia's petroleum reserves are depleting so that fuel substitution needs to be sought. Recent years, a lot of research has done, purposed to find an alternative source one of that is biodiesel. Raw material for biodiesel production can be from animal fat or vegetable oil. Crude palm oil (CPO) one of an alternative raw material. This research is aimed to produce biodiesel from CPO, studying factors which influences production process, such as catalyst, recycle and regeneration as well as to determine the physical and chemical properties of biodiesel produced. The transesterification process was done, a mole ratio of oil: methanol 1: 9, oil mass 50 grams, weight of the catalyst 1%-wt, having temperature of 60°C for 90 minutes. Clay catalysts are activated with acids, and then recycle and regeneration of catalyst. Result given by of alkaline activation of the catalyst 90.16%. Based on characterization of physical properties of biodiesel, result as follow density 0.869 g/ml, kinematic viscosity 4,65 mm2/s, the flash point 120oC and cetane number 51,74. The catalyst regeneration proved not a 100% of catalyst reactived.Keywords: biodiesel, clay, recycle, regeneration, transesterification

Pembuatan Biodiesel Dari Minyak Biji Kapuk (Ceiba Pentandra) Dengan Katalis Lempung Teraktivasi; Pengaruh Kecepatan Pengadukan Erlisa Yanuari Putri; Syaiful Bahri; Edy Saputra
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

Pengaruh Kecepatan Pengadukan Pada Sintesis Biodiesel Dari Minyak Jarak Pagar (Jatropha Curcas L) Dengan Katalis La/Lempung Yenni Octavia; Syaiful Bahri; Khairat Khairat
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 1 Januari s/d Juni 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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The increased energy needs of fossil fuels in particular leads to a decline in the world’s oil reserves which make this extremely rare. One way to reduce the energy crisis and the impact that fossil-funded energy use can have is to develop new and renewable energies such as vegetable fuels. One of the alternative forms of energy currently being developed is biodiesel. Biodiesel is one of the environmentally friendly alternative to diesel fuel. This research studied the effect of agitation speed with variations 300 rpm, 400 rpm 500 rpm, metal that falls into clay with variations 1%, 3%, 5% and activation NaOH with variation 1N, 2N and 3N to the yield biodiesel produced, and to indentifying the characterictics of biodiesel produced. This study begins impregnation of La metal into clay, the La/clay catalyst is calcination for 6 hours at 500oC with N2 gas, oxidation for 2 hours at 400oC with O2 gas and reduction for 2 hours at 400oC with H2 gas. After that, do the process of esterification in the flat bed reactor the temperature reaction 60 oC and reaction time 60 minutes, and then process of transesterification with temperature reaction 60 oC, reaction time 90 minutes, ratio mole oil : methanol 1/9, and catalyst weight 3 % (w/w) oil. Highest biodiesel yield obtained amounted to 89,78 % at the agitation speed 400 rpm and metals La(5%)/clay activation NaOH 3N. Physical characterization of biodiesel were done such as density 884 kg/m3, kinematic viscosity 5.54 mm2/s, acid number 0.676 mg-KOH/g biodiesel and flash point 139 oC respectively which have accordance with the standards of Indonesian biodiesel (SNI 04-7128-2015). Keywords: BBN, biodiesel, esterification, La/Clay catalyst, transesterification

Pembuatan Biodiesel Dari Minyak Biji Kapuk (Ceiba Pentandra) Dengan Katalis Lempung Teraktivasi; Pengaruh Waktu Reaksi Terhadap Yield Biodiesel Nurlis Nurlis; Syaiful Bahri; Edy Saputra
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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Research on production biodiesel from kapok seed oil (ceiba pentandra) using an activated clay catalyst has been performed. It aimed to determine the effect of an activated clay catalyst on producing biodiesel, its quality and to study the effect of reaction time. Clay catalyst was activated by H2SO4 0.47%, 0.62%, 0.78% and NaOH with a concentration of 0.33%, 0.44%, 0.66%. Esterification with methanol in the ratio 1:12 with the addition of H2SO4 as much as 1% of the weight of oil. The next transesterification reaction, the kapok seed oil is reacted with methanol in the ratio of 1: 9 with the acids and bases activated clay catalyst. The reaction temperature of 60 °C, various of reaction time 1 hour, 1.5 hours and 2 hours. The results showed that the use of an activated clay catalyst H2SO4 0.78%, the reaction time of 1.5 hours to produce the highest yield 92.18%. Physical characteristics of biodiesel were obtained density 869 kg/m3, kinematic viscosity of 2.67 cSt, the acid number of 0.45 mg KOH/g sample and the flash point of 209oC. From the results was obtained biodiesel produced in compliance with the SNI 7182: 2015.Keywords: activation, biodiesel, clay, kapok seed oil, transesterification

Pembuatan Bio-Oil Dari Kayu Cemara (Causarina Equisetifolal) Dengan Teknologi Pirolisis Menggunakan Katalis MO/NZA Hasnul Bustaman; Syaiful Bahri; Amun Amri
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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Bio-oil can be produced by pyrolisis of causarina wood with catalyst Mo/NZA. The purpose of this research was to produce bio-oil from causarina wood, determine the effect of theimpregnation percentage of Mo metal and ratio of Mo/NZA catalyst on the yield of bio-oil and determine the physical and chemical characteristics of bio-oil. Pyrolysis using 50 grams causarina wood, 500 ml silinap and Mo/NZA catalyst with variations of the impregnation percentage of Mo metal 0%, 0,5%, 1%, 1,5% and the variation ratio of Mo/NZAcatalyst 3% and 5% of the biomass with a stirring speed of 300 rpm and a temperature of 320ºC for 120 minutes. In this research, the highest yield on the variation of the impregnation percentage of metal 1,5% and the ratio of catalyst 5% of the biomass amounted to 66,79%. Characteristics of bio-oil obtained were density 1,012 gr/ml, viscosity 3,14 cP, acid number 75,48 mg NaOH/gr sample, and the flash point 52oC. The results of GC-MS analysis, the dominant chemical components inthe bio-oil were 2-propanone,1-hydroxy- with an area 51,55 % , 1,1’-bibicyclo(2.2.2)octyl-4- carboxylic acid with an area 14,77 % dan 2-Propanone with an area 0,8 %.Keywords: Bio-oil, Pyrolysis, Catalyst Mo/NZA, Causarina wood

Pirolisis Kayu Akasia (Acacia Mangium) Menjadi Bio-Oil Menggunakan Katalis Ni/NZA Dengan Variasi Pengembanan Logam Dan Rasio Katalis Sari Rahma Yanti; Syaiful Bahri; Amun Amri
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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The problems that currently appear in Indonesia is the energy crisis, especially fuel oil (BBM). Fuel derived from crude oil (fossil fuel) that can not be updated, so the next few years is expected to be deprived community will fuel. To overcome these problems needed alternative energy sources is the use of renewable biomass into bio-oil. Bio-oil is produced from biomass through pyrolysis. The purpose of this research was determine the effect of the impregnation percentage of Ni metal and ratio of catalyst Ni/NZA on the yield of bio-oil and determine the physical and chemical characteristics of bio-oil. Pyrolysis using 50 grams acacia wood, 500 ml silinap and Ni/NZA catalyst with variations of the impregnation percentage of Ni metal 0%, 1%, 3%, 6% and the variation ratio of catalyst Ni/NZA 3%, 6% and 9% of the biomass with a stirring speed of 300 rpm and a temperature of 320ºC for 120 minutes. In this research, the highest yield on the variation of the impregnation percentage of metal 1% and the ratio of catalyst 9% of the biomass amounted to 77,85%. Characteristics of bio-oil obtained were density 0,865 gr/ml, viscosity 1,621 cSt, acid number 88,115 mg NaOH/gr sample, and the flash point 43oC. The results of GC-MS analysis, the dominant chemical components in the bio-oil were 1,3-Pentadiene, 2,4-Dimethyl (1,591%), 3-Octyne,7-methyl (1,591%), 4-Nonene,5-butyl (7,846%), Dodecane,5,8-diethyl (3,531%) and 1-Tricosanol (7,158%).Keywords: Bio-oil, pyrolysis, catalyst Ni/NZA, acacia wood

Konversi Termal kayu ketapang (Terminalia Catappal) Menjadi Bio-Oil Dengan Teknologi Pirolisis Menggunakan Katalis NiMo/NZA Ari Aditia Sukma; Syaiful Bahri; Aman Aman
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Availability of fossil fuels are depleting resulted in higher mining costs and selling prices to the public. In addition, the results of its combustion also releases GHG to the environment. One way to reduce the use of fossil fuels is produce bio-oil through pyrolysis technology. Ketapang rod is a huge potential used as feedstock for bio-oil production because its high cellulose content (41.80%). Synthesis of bio-oil from Ketapang stem begins with the process of size reduction of biomass and natural zeolite to -100+200 mesh size. Then, into the natural zeolite impregnated Ni and Mo to form the bimetallic catalyst NiMo/NZA. The catalyst is then activated through the stages of calcination, oxidation, and reduction. Pyrolysis process is done by varying the weight percentage of catalyst to biomass, ie: 1.5%, 2%, 2.5%, and 3% w/w. In addition, the catalytic pyrolysis process is carried 3% NZA only and 3% NiMo/NZA were activated by calcination process alone. The highest yield was obtained on the use of catalysts NiMo/NZA perfect activated which amounted to 91.05%. From physics analysis performed on the bio-oil obtained: density of 0.91 g/ml, viscosity 10.839 cSt, acid number 46.954 mg NaOH/g sample, flash point 52oC, and the heating value 42.66 MJ/Kg. The figures are included in the range of physical characteristics of diesel-oil. Five (5) the dominant compound results of chemical analysis by GC-MS of the bio-oil from Ketapang rod by using a catalyst NiMo/NZA 3% by weight are: 3,4,4-trimethyl-2-nonene (10.29%), isobutylene (8.84%), 2,2-dimethyl-butane (8.05%), 3,4,4-trimethyl-2-pentene (5.76%), and 2-methyl-1-heptene (5.26%). Keywords: Bio-oil, Pyrolysis, and Catalyst NiMo/NZA

Pirolisis Kulit Kayu Pinus (Pinus Mercusil) Menjadi Bio-Oil Menggunakan Katalis Ni/Lempung Laila Kusmiati; Syaiful Bahri; Khairat Khairat
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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Requirement for the source of energy which increasing and petroleum reserve as source of primary energy which continuing attenuate to become the main reason for the importance ofsearching for alternative energy sources instead of petroleum. Biomass specially pine bark only considered as waste that pollutes the environment, whereas the pine bark is biomass that can be processed to become alternative energy that is bio-oil. Bio-oil can be produced through pyrolisis process using catalyst Ni/clay. This research aim to study the effect of the ratio of amount of catalyst to biomass which variation to 3%, 5% and 7% b/b and also the effect of Ni metal consentrate on clay equal to 0%, 1%, 2% and 3% w /w of the yield bio-oil produced. In thisresearch, pine bark biomass as much 50 grams with size of --60+80 mesh, silinap 500 ml, and catalyst Ni/clay entered into pyrolisis reactor. Process of pyrolisis is conducted at temperature320 oC and stirring speed of 300 rpm during 120 minute with stream of nitrogen gas (N2) as inert gas. The result obtained indicate that optimum yield obtained at 2% catalyst Ni/clay asmuch as 7% of biomass that is equal to 61,03%. Physical properties test result obtained that is density (0,856 gr/ml), viscosity (9,306 cSt), acidity number (24,986 mg of NaOH/gr of sample) and flash point (54 oC). Result of chemical analysis with GC-MS, obtained the dominant chemical components in bio-oil are 2-Pentene 22,31%, Pentane 13,46%, 1-propene 7,55%, 2- Hexene 7,35 and 1-Pentene 5,95%.Keywords: Biomass, Bio-oil, Catalyst Ni/Clay, Pine Bark, Pyrolysis

Produksi Biodiesel Dari Minyak Nyamplung Dengan Katalis Ni/Lempung Taufik Kharnofa; Syaiful Bahri; Yusnimar Yusnimar
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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The research has been done to produce biodiesel from calophyllum inophyllum oil with Ni/clay catalyst. Several variations of the process variables were done to assess its influence on acquisition (yield) of biodiesel and quality of biodiesel produced. The variables are used consist of a dependent variable and independent variable. Dependent variables are calophyllum inophyllum oil weight 50 grams, the catalyst concentration Ni / clay 0.5%-b oil, reaction temperature of 60 °C and a reaction time of 90 minutes, while the independent variable which variation mole ratio of oil : methanol 1: 6, 1: 9 and variations of Ni metal impregnation 0% -w (no metal) 1%-w, 2%-w and 3%-w samples of clay. This research has given result the highest yield of 95.36% biodiesel obtained in the use of Ni(3%)/clay catalyst and the mole ratio of oil : methanol of 1: 9. The biodiesel produced has a density of 883 kg/m3, kinematic viscosity of 4,46 mm2/s, acid number of 0.50 mg KOH / g sample and the flash point of 155°C respectively.Keywords: Biodiesel, Ni/Clay Catalyst, Calophyllum Inophyllum Oil

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

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