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All Journal Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Seminar Nasional Teknik Kimia Kejuangan CHEMPUBLISH JOURNAL JOURNAL OF EARTH ENERGY ENGINEERING JRST (Jurnal Riset Sains dan Teknologi) Journal of Bioprocess Chemical and Environmental Engineering Science Jurnal Abdi Masyarakat Indonesia Jurnal Pengabdian Masyarakat Waradin Journal of Engineering Science and Technology Management
Idral Amri
Universitas Riau
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 Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Public Health Social Sciences Other

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Pemanfaatan Daun Nanas Sebagai Bahan Alternatif Filler Dalam Sintesis Komposit: Dengan Variasi Tebal Komposit Dan Persen Berat Serat Riski Adi Mulia; Idral Amri; Yusnimar Yusnimar
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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Abstract

Composite with suitable mechanical properties were needed to meet SNI in the operation of tank in water treatment unit. Some things that can effect it were thick composites and percent weight of fiber. This research aims to make composites with natural fiber fillers from pineapple leaves, acknowledge the optimum tensile strength and flexural strength in composites with variations in composite thickness, and acknowledge the optimum tensile strength and flexural strength in composites with variations in fiber weight. In this research the material used is pineapple fiber with a fiber weight of 15%, 25%, 35%, 45%, with variations of thickness 1; 2 3 4; and 5 mm, used Polyester BQTN 157 as its matrix. Made in press mold, tensile srength tested the standard carried out with ASTM 638-02 and bending standards with the standard reference ASTM D 790-02. Tested was carried out on variations in fiber weight 15%, 25%, 35%, 45%, and variations in composite thickness 1; 2 3 4; and 5 mm . From the tests that have been carried out obtained maximum tensile strength of 63.02 MPa, at 45% by weight of fiber and 5 mm thick, while on bending testing the optimal average on fiber weight was 45% with a thickness of 1 mm which was equal to 445.50 MPa. This result was suitable with SNI for tank operation in the water treatment unit..Keywords : bending strength, tensile strength, polyester, pineapple fiber
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
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

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
Pengaruh Kecepatan Rotor Dan Konsentrasi Katalis Pada Pembuatan Biodiesel Dari Cpo Dengan Reaksi Esterifikasi Menggunakan Sentrifugal Kontaktor Gery Azhari Putera; Idral Amri; Silvia Reni Yenti
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 needed for diesel engines in Indonesia each year increased along with the number of industrial machinery and the amount of diesel vehicles engine. With limited oil reserves, it is necessary to look for alternative sources of energy. Centrifugal contactor technology is one of the alternative technology of biodiesel production is very likely to be developed. Therfore, we need a study of biodiesel production using palm oil feedstock and methanol as reagent and sulfuric acid as a catalyst by using the esterification reaction. And this study used centrifugal contractors as the main equipment, which is equipped with a heater, raw material tank, product tank and pumps. Fixed variables selected in this study is the reaction time of 120 minutes, the molar ratio of feed is 9:1, and 60 ° C operating temperature. While the manipulated variable is rotor speed (1200, 1800 and 2400 rpm), the concentration of sulfuric acid catalyst (5%, 10% and 15% v/v methanol). The results of the research that has been done is the characteristics of biodiesel produced in this study, the kinematic viscosity values from 2,41 to 2,51 mm2/s, density 858-863 kg/m3, and acid number 6,30 to 6,66 mg-KOH/g. The composition of the methyl ester obtained is 0,33% behenic metyl ester, 48,87% palmitic methyl ester and 50,80% oleic methyl ester. The best conversion is 56,03% at the optimum operating conditions with a catalyst concentration of sulfuric acid 10% v/v methanol and the rotor speed of 2400 rpm. Correlation of rotor speed on reaction rate constant is k = 0,0002Re(0,1928) . And the relationship of the catalyst concentration the reaction rate constant is k = 0,0055[Q] 0,089.          Keywords: CPO, Centrifugal Contactors, Biodiesel, Esterification Reaction
Pemanfaatan Limbahdaun Nanas Sebagai Bahan Alternatiffiller Dalampembuatan Komposit : Dengan Variasi Posisi Serat Dan Jumlah Lapisan Serat Reza Andreano D; Idral Amri; Yusnimar Yusnimar
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

At the moment composite is one of the alternative materials being developed and widely used in the industrial world. Composites that use natural fibers are chosen because they are also environmentally friendly besides cheap. One of the natural fibers around us and has good potential is pineapple leaf fibers. This study aims to determine the effect of the number of fiber layers and position of pineapple leaf fibers on the mechanical properties of composites where the resin used in this study is polyesther resin. In this study an analysis of the composite strength, elasticity and elasticity was carried out. This study uses pineapple leaf fibers with variations of 1 layer of fiber, 2 layers of fiber, 3 layers of fiber and variations in the position of the fibers, namely below, in the middle, above. The results showed that the highest mechanical properties were obtained by composites with 3 layers of fiber with tensile strength values of 65.09 MPa, flexural strength of 327.1 MPa and elastic modulus of 5917.3 MPa. The resulting composite has met fiberglass reinforced plastic specification standards for water treatment units based on SNI 7504:2011. Keywords: composite, fiber, pineapple leaves, polyesther
Netralisasi Limbah Cair Industri Tahu Menggunakan Metoda Elektrokoagulasi dengan Elektroda Al-Al dengan Variabel Waktu Proses dan Ketebalan Plat Idral Amri; Ihda Nurjanah; Irdoni
Journal of Bioprocess, Chemical and Environmental Engineering Science Vol 1 No 1 (2020): Journal of Bioprocess, Chemical, and Environmental Engineering
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, UNRI

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Abstract

The tofu factory located in Pangkalan Kerinci, Pelalawan District, produces 1 m3 of liquid waste every day and are immediately disposed of without going throught the processing before release to environment. The analysis shows that the liquid waste is not in accordance with Permen LH No. 5 2014. This will deerease the oxygen level in the water. The purpose of this study was to determine reduce levels of TSS, BOD and pH with plate thicknes and prosesing time. Neutralization of liquid waste of tofu industry. The electrocoagulation method was used to reduce BOD, TSS and neutralize pH by varying the time, plate thickness. The conclusions obtained are: (1) Time variation (20, 40 and 60 minutes), and effective time is 60 minutes, current strength of 0.6 A decreases 72% BOD concentration, TSS 69.9% and pH becomes 6.01. (2) Variation in plate thickness (0.5; 1.0 and 1.5 mm), and effective plate thickness of 1 mm at 60 minutes can reduce BOD concentration 73.14%, TSS 68.78%, pH becomes 6.83. The results of the research obtained are in accordance with Permen LH No.5 of 2014.
Produksi Bioetanol Generasi Kedua dari Pelepah Kelapa Sawit dengan Variasi Pre-Treatment H2SO4 dan Waktu Fermentasi ojsadmin; Adrianto Ahmad; Idral Amri; Rahmah Nabilah
Journal of Bioprocess, Chemical and Environmental Engineering Science Vol 1 No 1 (2020): Journal of Bioprocess, Chemical, and Environmental Engineering
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, UNRI

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Abstract

Indonesia merupakan negara produsen dan eksportir kelapa sawit terbesar di dunia. Seiring semakin luasnya lahan perkebunan sawit, maka semakin banyak industri pengolahan sawit yang mengakibatkan jumlah limbah yang dihasilkan juga besar. Indonesia menghasilkan limbah kelapa sawit sebesar 66.750 juta pelepah atau sekitar 300 juta ton/tahun. Dengan melimpahnya pelepah kelapa sawit dapat dimanfaatkan sebagai sumber energi alternatif terbaru yaitu bioetanol. Tujuan penelitian ini yaitu mensintesis bioetanol dari pelepah sawit, menentukan pengaruh konsentrasi H2SO4 pada proses hidrolisis dan menentukan waktu optimum produksi bioetanol dari bahan baku pelepah kelapa dengan metode separate hydrolysis and fermentation (SHF). Tahapan penelitian ini yaitu pretreatment basa menggunakan larutan KOH yang diperoleh dari ekstrak abu Tandan Kosong Sawit, selanjutnya proses pretreatment oksidatif menggunakan larutan H2O2 3%. Kemudian proses hidrolisis dengan variasi H2SO4 yaitu 1,5 M, 2 M, dan 2,5 M selama 3 jam pada suhu 100oC dan dilanjutkan dengan proses fermentasi untuk menghasilkan bioetanol dengan waktu fermentasi yaitu 24 jam, 48 jam, 72 jam, 96 jam, dan 120 jam . Hasil penelitian menunjukkan bahwa pada proses hidrolisis dihasilkan konsentrasi gula maksimum sebesar 161,98 gr/L. Konsentrasi terbaik H2SO4 pada penelitan ini yaitu 2 M dan waktu fermentasi terbaik 96 jam dengan kadar bioetanol yang diperoleh sebesar 7% atau 55,25 g/L.
Pengaruh Pretreatment pada Fermentasi Bioetanol Generasi Kedua dari Serat Buah Kelapa Sawit ojsadmin; Adrianto Ahmad; Idral Amri; Wida Sri Wani
Journal of Bioprocess, Chemical and Environmental Engineering Science Vol 1 No 1 (2020): Journal of Bioprocess, Chemical, and Environmental Engineering
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, UNRI

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Abstract

Indonesia is a country with a growing human population, causing the need of energy also increases. Bioethanol has been widely used in transportation as a fuel that is increasingly reduced. Palm fruit fiber has a high enough potential to be developed into an alternative energy source, namely bioethanol because of its high lignocellulosic content. The purpose of this study was to determine the composition of sulfuric acid in the hydrolysis process, determine the initial sugar composition of the bioethanol produced, and determine the optimal processing time for the formation of bioethanol in the Hydrolysis and Separate Fermentation (SHF) method. The stages in this study were the hydrolysis of palm fruit fiber using H2SO4 with variations of 1M, 2M, and 3M for 3 hours at 100 oC. The fermentation process is carried out with variations in time for 24 hours, 48 hours, 72 hours, 96 hours and 120 hours. The results showed that in the hydrolysis process the optimum H2SO4 concentration of 3M produced a sugar concentration of 87.83 gr/L. The fermentation process obtained an optimal fermentation time of 96 hours with a bioethanol concentration of 31.57 g / L. The greater the initial concentration and the longer time fermentation, the more bioethanol is obtained at optimal times.
Produksi Bioetanol Generasi Kedua dari Pelepah Kelapa Sawit dengan Variasi Pretreatment H2SO4 dan Waktu Fermentasi Idral Amri; Adrianto Ahmad; Rahmah Nabilah
Journal of Bioprocess, Chemical and Environmental Engineering Science Vol 1 No 2 (2020): Journal of Bioprocess, Chemical, and Environmental Engineering
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, UNRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (0.025 KB) | DOI: 10.31258/jbchees.1.2.1-16

Abstract

Indonesia merupakan negara produsen dan eksportir kelapa sawit terbesar di dunia. Seiring semakin luasnya lahan perkebunan sawit, maka semakin banyak industri pengolahan sawit yang mengakibatkan jumlah limbah yang dihasilkan juga besar. Indonesia menghasilkan limbah kelapa sawit sebesar 66.750 juta pelepah atau sekitar 300 juta ton/tahun. Dengan melimpahnya pelepah kelapa sawit dapat dimanfaatkan sebagai sumber energi alternatif terbaru yaitu bioetanol. Tujuan penelitian ini yaitu mensintesis bioetanol dari pelepah sawit, menentukan pengaruh konsentrasi H2SO4 pada proses hidrolisis dan menentukan waktu optimum produksi bioetanol dari bahan baku pelepah kelapa dengan metode separate hydrolysis and fermentation (SHF). Tahapan penelitian ini yaitu pretreatment basa menggunakan larutan KOH yang diperoleh dari ekstrak abu Tandan Kosong Sawit, selanjutnya proses pretreatment oksidatif menggunakan larutan H2O2 3%. Kemudian proses hidrolisis dengan variasi H2SO4 yaitu 1,5 M, 2 M, dan 2,5 M selama 3 jam pada suhu 100oC dan dilanjutkan dengan proses fermentasi untuk menghasilkan bioetanol dengan waktu fermentasi yaitu 24 jam, 48 jam, 72 jam, 96 jam, dan 120 jam . Hasil penelitian menunjukkan bahwa pada proses hidrolisis dihasilkan konsentrasi gula maksimum sebesar 161,98 gr/L. Konsentrasi terbaik H2SO4 pada penelitan ini yaitu 2 M dan waktu fermentasi terbaik 96 jam dengan kadar bioetanol yang diperoleh sebesar 7% atau 55,25 g/L. Kata kunci : bioetanol, fermentasi, hidrolisis, pelepah kelapa sawit, saccharomyces cerevisiae
Pembuatan Briket Kalori Tinggi Menggunakan Limbah Pulp dan Tempurung Kelapa Sebagai Cofiring dengan Campuran Limbah Sludge CPO Sebagai Bahan Perekat Michael Tanuwijaya; Idral Amri; Zultiniar
Journal of Bioprocess, Chemical and Environmental Engineering Science Vol 1 No 2 (2020): Journal of Bioprocess, Chemical, and Environmental Engineering
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, UNRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (165.669 KB) | DOI: 10.31258/jbchees.1.2.25-38

Abstract

Indonesia is one of the largest paper producing and exporting countries in the world. Along with the increase in paper production causes an increase in solid waste originating from the reject pulp. The reject pulp has the potential to produce energy because it still contains high cellulose content of around 85.16% which is able to support the provision of usable and environmentally friendly fuel. The purpose of this study was to use of reject pulp as fuel in the form of briquettes by mixing coconut shell charcoal as cofiring and CPO sludge as an adhesive. The beginning of in this research is pretreatment of raw material samples and quality testing such as coconut shells which go through the authoring process using the torefaction process with temperature variations of 275 ° C and 300 ° C which are then mashed and reject the pulp through a washing and drying process in an oven which is then processed. form into briquettes with a variety of composition of reject pulp and coconut shell charcoal cofiring from 80%: 0%, 20%: 60%, 30%: 50%, 50%: 30%, 60%: 20%, and 0%: 80% , for adhesive 20% while 90%: 0%, 30%: 60%, 40%: 50%, 50%: 40%, 60%: 30%, 70%: 20% and 90%: 0% for adhesive 10 % of the total briquette weight which is ± 2 grams. The briquettes that have been form must qualified to the quality standards of SNI for wood charcoal (No.1 / 6235/2000) where after being tested only a few compositions have qualified the standards, for the reject pulp composition and coconut shell charcoal cofiring from 0:90, 30:60 40:50 with an adhesive composition of 10% and a composition of 0:80, 20:60, 30:50 with an adhesive composition of 20%, with the highest calorific value of 5274 cal/g, moisture content of 5.37%, and ash content of 2.65%.
DESAIN REAKTOR TRANSESTERIFIKASI PADA PRAPERANCANGAN PABRIK METIL ESTER DARI CPO (CRUDE PALM OIL) Idral Amri; Tifanny Frimacia
Journal of Bioprocess, Chemical and Environmental Engineering Science Vol 2 No 1 (2021): Journal of Bioprocess, Chemical, and Environmental Engineering
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, UNRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (248.745 KB) | DOI: 10.31258/jbchees.2.1.25-31

Abstract

Along with the development of the era, the need for fuel oil is increasing. The development of research and the use of diesel motors in industry will not stop just because of the depletion of fossil fuels. The search for alternative fuels as a substitute for diesel continues to be carried out in addition to dealing with the problems of the global energy and environmental crisis as well as helping to develop automotive technology as a work of human culture. Methyl ester is a biofuel that can be used to power diesel engines. The availability of fuel oil derived from petroleum is running low and the price is increasing so that alternative fuel sources are needed. One of the substitutes for conventional fuels from petroleum is vegetable oil. Methyl ester is produced using a transesterification reaction by changing the triglycerides which are reacted with one of the alcohol compounds, namely methanol to become methyl ester, and a production capacity of 250,000 tons / year is obtained. The main design tool is the CSTR (Continuous Flow Stirred-Tank Reactor) reactor which is used as a place for the transesterification reaction between triglycerides and methanol to produce methyl ester (main product) and glycerol (by-product). The operating temperature used is 333.15K. Based on the calculation results, the reactor volume is 57.28 m3, the reactor diameter (OD) is 168 in m with torispherical flanged and dished head and skirt support.
Co-Authors Adam Fadillah Adam Rafif Aldori Adrianto Ahmad Adrianto Ahmad Adrianto Ahmad Afriandi Afriandi Ahmad Fadli Ahmad Fadli Albi Fadhlah Ramadhan Alfarisi, Cory Dian Alltop Amri Ya Habib Amelisa, Tika Angga Dwina Putra Ani, Tengku Urai Aris Aprianto Cahyono Awalsya, Febri Bahruddin Bahruddin chairul Desi Heltina Destinefa, Pratiwi Dion Julio Iskandar Drastinawati Drastinawati Drastinawati Drastinawati Dwi Widyaningsih Dwi Yerlis Rahmi Elfrida Ratnawati Elvi Yenie, Elvi Ervina Ervina Eufransia, Lamria Ewith Riska Rachma Fajril Akbar Fernandiaz, Revi Frimacia, Tifanny Gery Azhari Putera Gunawan Gunawan Handayani, Della Hari Rionaldo Hendri, Yola Bertilsya Hendriadi Siregar Hermana Setti Tarigan Iffany Adinda Chayyira Ihda Nurjanah Inka Novela Irdoni Irdoni Irdoni HS Irdoni Irdoni Irdoni Irdoni Jhon Alperdo Jhon Armedi Pinem Khairani Liona Margarita Siahaan Lisa Legawati Lisa Legawati M. Iwan Fermi Manik, Boy Jansen Roberto Marina Marina Michael Tanuwijaya Muhammad Faiza Abrar Muhammad Ichwan Pradana Muhammad Iwan Fermi Mutia Yuli Rahmawati Nirwana Nirwana Nurfatihayati Nurjanah, Ihda ojsadmin Onil Andika Panca Setia Utama Pane, Dewi Sriana S Paratenta, Maria Pratiwi Destinefa Rahmah Nabilah Rahmah Nabilah Rahmah Nabilah Ramadhani, Trie Sucy Revi Fernandiaz Reza Andreano D Ridho Wijaya Riski Adi Mulia Rozanna Sri Irianty Salma Liska Salma liska Silvia Reni Yenti Sinaga, Hendriyanto Sunarno Sunarno SYAIFUL BAHRI Syamsu Herman Tanuwijaya, Michael Tengku Mukhlis Tifanny Frimacia Wida Sri Wani Wida Sri Wani Wijaya, Ridho Winny Noviami Erziza, Winny Noviami Yelmida Azis Yogi Yolanda Yola Bertilsya Hendri Yolanda, Yogi Yusnimar Sahan Zuchra Helwani Zulfansyah Zulfansyah Zultiniar Zultiniar Zultiniar, Zultiniar Zultiniar, Zultiniar Zuqni Meldha Zuqni Meldha