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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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Pembuatan Biodiesel Dari Minyak Jarak Pagar Dengan Katalis La/NZA Irnaliah, Irnaliah; Bahri, Syaiful; Khairat, Khairat
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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Abstract

Biodiesel is an alternative energy to replace fossil fuels. It can be made by transesterification process of vegetable oils such as jatropha oil. During the process of making biodiesel it using homogeneous catalyst such as NaOH or KOH. But homogeneous catalyst has disadvantages the formation of side product and complexity the separation of catalyst. Therefore, in this study the use of heterogeneous catalyst La/NZA was developed to produced biodiesel. The purpose of this research were produce biodiesel from jatropha oil, study the effect of mole ratio of oil/methanol and concentration of catalyst on yield of biodiesel, determine the best conditions for biodiesel production and to identify the characteristics of biodiesel produced.In the transesterification process, concentration of catalyst and mole ratio oil/methanol was variated. Yield of biodiesel based on product methyl ester and selectivity is calculated.Keyword: biodiesel, esterification, heterogeneous, transesterification
Pirolisis Katalitik Kayu Akasia (Acacia Mangium) Menjadi Bio-Oil Dengan Katalis Mo/ Lempung Rahman, Aulia; Bahri, Syaiful; Khairat, Khairat
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
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Abstract

Decreasing in fuel oil production capabilities and the increasing need for fuel oil will make Indonesia more addicted to fuel oil, thereby increasing the amoount of fuel imports. In Consequence, we need an innovation of energy conversion that does not rely on fossil resources, renewable and equal in value and function with fuel oil. One of that such innovation is the conversion of biomass derived from wood acacia (Acacia mangium) into bio-oil. Bio-oil can be produced through the pyrolysis process acacia (Acacia mangium) with catalyst Mo / Clay. The aims of this research is to produce bio-oil from acacia wood, determine the effect of pyrolysis temperature variations, the percentage and the amount of catalyst metal pengembanan Mo / clay and characterization of physical and chemical properties of bio-oil. Pyrolysis process carried out at the pyrolysis temperature variations 300oC, 320oC and 340oC, silinap 500 ml, biomass 50 grams with a size of -100 + 200 mesh sieve, the percentage variation of impregnation Mo metal to clay of 1%; 2% and 3%, as well as variations in the amount of catalyst Mo / clay of the biomass of 3%; 6% and 9%. The Results of this study is largest bio-oil yield in pyrolysis temperature of 320oC, the percentage of metal impregnation 2% and the use of catalysts Mo / clay 6% is 73,64%. Characterization of physical properties of bio-oil obtained in the form of density of 0,971 gr / ml, 2,079 cSt viscosity, acidity 58,369 mg NaOH / gram sample, the flash point 480C and the calorific value of 29,567 MJ / kg. While the characterization of the chemical properties of bio-oil using Gas Chromatography-Mass Spectroscopy (GCMS), several dominant chemical components such as acetic acid with a total area of 35,86%, 2-propanone with an area of 17,69%, 2-amino, 1-propanol with an area of 7,05%, propionic acid and an area of 6,20% and 1-hydroxy-2-butanone with an area of 4,12%.Keywords: bio-oil, catalyst Mo/Lempung, pyrolysis, Acacia mangium wood
Konversi Biji Alpukat Menjadi Bio-oil Dengan Metode Pyrolisis Menggunakan Katalis Zeolit Alam Agustin, Dian; Sahan, Yusnimar; Bahri, Syaiful
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
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Abstract

The trend of fossil fuel demand is always increase by time in the world. Yet, petroleum oil as a non-renewable has been declining each year. It is necessary to find a new alternative fuel that can be renewed, such as to applied biomasses as resources energy. One of several potential biomasses can be converted to energy or bio-oil is the seed of an avocado because it’s contain so high fat fatty acid (FFA). This seed has not been used maximacally yet, so in this research this seed is converted into bio-oil by using pyrolysis method and natural zeolite as a catalyst. The purpose of this research is to get the highest yield of bio-oil by applied variation of ratio sample : catalyst (50:0, 50:1, 50:2, 50:3 g/g), and temperature variation of pyrolysis process is 270, 300, 330 ºC. Based on results in this research, the highest of bio-oil is 79,08 % found under condition ratio sampel : catalyst 50 :2 and pyrolysis temperature is 330 ºC. The bio-oil is analyzed and it’s density 0.988 g/ml, viscosity 7,560 cSt, acid value 0,1002 mg NaOH/ g sample,  flash point 56 ºC and heating value 17,354 MJ/kg. Based on GC-MS analyzed bio-oil were contained (2,4,4-trimethyl-2-pentene), (3,4,4-trimethyl-2- pentene), (Diisobutylene), (2,4,4-trimethyl-3-pentene) and (2-methyl-trimer- propene) with peak area (7,84%), (7,82%), (5,69%), (3,82%) and (3,58%).  Keyword :  Avocado seed, Bio-oil, Natural Zeolite, Pyrolysis
Konversi Kayu Ketapang (Terminalia Catappa. L) Menjadi Bio-Oil Menggunakan Metode Pirolisis Dengan Katalis Co-Mo/NZA Rizky, Muhammad; Bahri, Syaiful; Yusnimar, Yusnimar
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 2 (2014): Wisuda Oktober Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The demand of fossil fuel  is increasing each year. On the other hand,  the availability of conventional petroleum fuels diminishing due to its non-renewable. Therefore, it is necessary to develop  a  new alternative  fuel  that can be renewed,  one of the solution  is the  processing of biomass into bio-oil. Bio-oil is a result of the pyrolysis of biomass. Availability of Ketapang rod is converted  into bio-oil by pyrolysis method using catalysts natural zeolite. The purpose of this study was  to  determine the performance of  the catalyst  to  produce bio-oil,  characterize  the density, viscosity, acid number, and flash point of bio-oil  that produced, as well as analyze  the chemical components  of bio-oil  by GC-MS method.  Pyrolysis of  Ketapang rod  catalyst  from natural zeolite  in the reactor  slurry  do  by feeding 50 grams with the size    -100 +200 mesh, silinap 500 ml, stirring speed is set to 300 rpm, 320oC temperature, and the process runs for 120 minutes. The results showed that the optimum yield obtained  on 2.5% catalyst, amounting to 77%. The test results obtained by the physical properties of density 0.875 g/ml, 9.56  cSt viscosity, acid number of 49,89 gr NaOH/gr sample. Keywords: Bio-oil, pyrolysis, Ketapang rod, natural zeolite, alternative fuels
Pirolisis Kulit Kayu Pinus Merkusii Menjadi Bio-Oil Menggunakan Katalis Cr/Lempung Cengar Febrian, Ramadhoni; Bahri, Syaiful; Khairat, Khairat
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
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Abstract

Bio-oil is produced from biomass through pyrolysis. Then, potential biomass is bark of pine. Bark of pine merkusii can be processed into bio-oil by pyrolysis used Cr/clay catalyst. This research aims to produce bio-oil from bark of pine with Cr/clay catalyst as an alternative fuel, observing the effect of the ratio of catalyst Cr/clay weight to biomass, and observing the influence of Chromium (Cr) impregnation and characterizing physical and chemical characteristic of bio-oil. In the pyrolysis process, 50 grams of pine bark with -100 + 200 mesh, the Cr / clay catalyst with weight variation of the biomass are 3%, 5% and 7% and the variation of Chromium (Cr) impregnation on clay are 0%, 1%, 2% and 3%. And 500 ml of silinap was added to the pyrolysis reactor. Pyrolysis process occurred for 120 minutes at a 320o C and the stirring speed is about 300 rpm. This research resulted in the greatest yield on the use of Cr/clay catalysts 7% of weight to the biomass and 3% metal content is about 65.77%. Characteristics of physical properties was obtained 0.812 g / ml of density, 0.902 cSt of viscosity, 7.626 mg NaOH / gram samples of acidity and 31oC of flash point. While the chemical characteristics of the bio-oil was obtained from the analysis using Gas Chromatography-Mass Spectroscopy (GCMS) and it found several dominant chemical components such as 9,12-Octadecadienoyl chloride, Cyclohexane, 1-methyl-2-penthyl, Octadecanoic acid, 2-Pentene, 24.4-trimethyl and Cyclohexane, 3- (3,3-dimethylbutyl).Keywords: Bio-oil, pyrolysis, bark of pine merkusii, Cr/Clay catalyst
Fermentasi Nira Nipah Menjadi Bioetanol Menggunakan Saccharomyces Cerevisiae Dengan Penambahan Urea Sebagai Sumber Nitrogen Rahmah, Yulia; Bahri, Syaiful; Chairul, Chairul
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
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Abstract

Nypa is one of biomass wich has a potential to be converted into bioethanol. Bioethanol produced through the process of fermentation of glucose with the help of a microorganism. In this research, nypa sap was converted to be bioethanol using Saccharomyces cerevisiae. The purpose of this researches were doing the fermentation of nypa sap to produce bioethanol, to study the influence of the addition nitrogen source in the fermentation process, and obtain the optimum fermentation time to bioethanol production. The sequances of this research were preparation of material, equipment sterilization, making the starter (inoculum), making the medium fermentation and fermentation process. Fermentation takes place in batches with a volume of 2 liters of fermentation medium. Variation of urea were used 0,2; 0,4; 0,6; and 0,8 g/l, variation of fermentation time were 24, 36, 58, 60, and 72 hours. Temperature fermentation was occured at room temperatur (25 – 30oC). Ethanol concentration was analyzed by using Gas Chromatography. The highest bioethanol concentration was 7,12% at variation of urea 0,6 g/l and fermentation time 36 hours.Keywords : bioethanol, fermentation, nypa sap, Saccharomyces cerevisiae, urea
Kajian Minyak Biji Picung Sebagai Bahan Baku Alternatif Pembuatan Biodiesel Dengan Katalis AL2O3 Setiadi, Fydel; Bahri, Syaiful; Helwani, Zuchra
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
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Abstract

Biodiesel is an alternative energy to replace fossil fuels. It can be made by transesterification process of vegetable oils. During the process of making biodiesel usually 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. Therefore, in this study Al2O3 catalyst is used. This research is aimed to make biodiesel from picung seed oil, having study the effect of Al2O3 catalyst concentration on the amount of biodiesel produced, and determine the best conditions for biodiesel production. This study starts from raw material preparation which includes drying, heating, and refinement. Furthermore, extraction the picung seed oil and followed by degumming to remove impurities contained in the oil. The transesterification process of oil was done at various variation of temperature i.e 50, 60, 70 °C respectively and the various variation of catalyst concentration i.e 1%, 2%, 3% respectively at methanol of oil mole ratio 9: 1. The process was stired at speed of 200 rpm and a reaction time of 240 minutes. From the result was obtained the highest biodiesel of 97,2% at the reaction temperature of 60 °C with concentration Al2O3 catalyst 2%.Keywords : Al2O3, biodiesel, picung seed oil, transesterification
Konversi Termal Kayu Akasia (Acacia Mangium) Menjadi Bio-Oil Dengan Teknologi Pirolisis Menggunakan Katalis Mo/NZA Meliagustin, Adilla; Bahri, Syaiful; Amri, Amun
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
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Abstract

Availability of petroleum fuels are increasingly limited. Limitations of petroleum fuels will not be balanced with the needs of the community will fuel increased day by day. To overcome these problems needed alternative energy sources that can be updated is one of the bio-oil. Bio-oil is produced from biomass with the pyrolysis process, in the absence of oxygen. The purpose of this research was the synthesis of bio-oil from akasia wood, determine the effect of the impregnation percentage of Mo metal and ratio of catalyst Mo/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 Mo/NZA catalyst with variations of the impregnation percentage of Mo metal 0%, 1%, 3% and 6%, and the variations ratio of catalyst Mo/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 3% and the ratio of catalyst 9% of the biomass amounted to 76,084%. Characteristics of bio-oil obtained were density 0,827 gr/ml, viscosity 2,032 cSt, acid number 88,677 mg NaOH /gr sample, and the flash point 43 oC. The results of GC-MS analysis, the dominant chemical components in the bio-oil were Cyclohexane (13,477%), 2,4-Hexadiene (2,610%), 6-Tridecene (1,920%), Propane (1,684%) and 4-Nonene (0,619 %).Keyword: Bio-oil, pyrolysis, catalyst Mo/NZA, akasia wood
Konversi Kayu Akasia (Acacia Mangium) Menjadi Bio-Oil Dengan Proses Pirolisis Menggunakan Katalis Ni/Lempung Hardi, Rizka Aulia; Bahri, Syaiful; Amri, Amun
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

Availability of fossil fuels as a non-renewable energy source has decreased due to the increase of energy consumption. Therefore, it is needed an alternative renewable energy sources, such as conversion of biomass derived from acacia mangium wood. Bio-oil can be produced by pyrolisis of Acacia mangium wood with catalyst Ni/clay. The purpose of this research are to produce bio-oil from acacia wood, to characterize of Ni/clay catalyst, to determine the effect of the impregnation of Ni metal in to clay and ratio of Ni/clay catalyst on the yield of bio-oil and to determine the physical and chemical characteristics of bio-oil. The pyrolysis was used 50 grams acacia wood, 500 ml silinap and Ni/clay catalyst with variations of the percentage of the Ni metal 0%, 1%, 2%, 3%, respectively and the variation ratio of Ni/clay catalyst of the biomass 3%, 5% and 7% with a stirring speed of 300 rpm and a temperature of 320ºC for 120 minutes. In this research, the highest yield was on the use of the catalysy Ni/clay 5% by weight of the metal content of 3% by 66,26%. Characterization of physical properties of bio-oil obtained in the form of density 1,004 gr/ml, 1,8452 cSt viscosity, acidity 71,6327 mg NaOH/gr sample, and the flash point 46oC, respectively.Keywords: Bio-oil, Pyrolysis, Catalyst Ni/Clay, Acacia mangium wood
Pirolisis Kayu Akasia Menjadi Bio-Oil Menggunakan Katalis NiMo/NZA Dengan Variasi Jumlah Pengembanan Logam Dan Rasio Berat Katalis Terhadap Biomassa Saputra, Adika; Bahri, Syaiful; Amri, Amun
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

The purpose of this research is to determine the effect of the percentage of NiMo and ratio of NiMo/NZA catalyst to the yield of bio-oil in the synthesis of bio-oil from acacia wood using pyrolysis methode. The process was carried out using 50 gram, of acacia wood, 500 ml silinap and NiMo/NZA catalyst with various variations of the percentage of NiMo metal 0%, 1%, 2%, 3% and the variation ratio of NiMo/NZA catalyst 3%, 6%, 12% respectively of the biomass having a stirring speed of 300 rpm and a temperature of 320 ºC for 120 minutes. From the result, the highest yield (69.41%) was obtained of NiMo ratio 2% and the catalyst 3%. The physical properties at the bio-oil result obtained density 0.938 gr/ml, viscosity 1.919 cSt, acid number 87.593 mg NaOH/gr sample, and the flash point 55 oC respectively. From analysis by the GC-MS, the dominant components were 2-Pentene,2,4,4-Trimethyl (18.50%), Pentane,2,2,4,4-Tetramethyl- (5.64%), 1-Pentene,2,4,4-Trimethyl- (10.31%), 2-Pentene,2,3, 4-Trimethyl- (2.43%) and Cyclohexanone,3-(3,3-Dimethylbutyl) (8.08%) were found.Keywords: Biomass, Bio-oil, NiMo/NZA, acacia wood, 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 Sunaro 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