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All Journal Reaktor Jurnal Teknik Kimia USU Jurnal Teknik Kimia Jurnal Teknologi Rekayasa Mesin Eksergi: Chemical Engineering Journal JURNAL INTEGRASI PROSES Konversi Jurnal Rekayasa Bahan Alam dan Energi Berkelanjutan Jurnal Purifikasi SENTIA 2016 Jurnal Penamas Adi Buana Industri Inovatif : Jurnal Teknik Industri Jurnal Inovasi Teknik Kimia Majamecha G-Tech : Jurnal Teknologi Terapan Jurnal Teknik Kimia USU Mestaka: Jurnal Pengabdian Kepada Masyarakat Jurnal Teknik Kimia dan Lingkungan
Elvianto Dwi Daryono
Institut Teknologi Nasional Malang
Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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Pengaruh Penambahan Co-solvent Metil Ester dan Waktu Reaksi pada Proses Transesterifikasi Minyak Kelapa Sawit Menjadi FAME (Fatty Acid Methyl Esters) Daryono, Elvianto Dwi; Mustiadi, Lalu
Jurnal Teknik Kimia USU Vol. 11 No. 1 (2022): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v11i1.7668

Abstract

Biodiesel is a renewable energy that is expected to replace diesel. The process of making biodiesel is constrained due to the limited solubility of the reactants. One way to increase the solubility is to add a co-solvent that can dissolve polar and non-polar materials. Methyl ester is the best co-solvent because it is cheap and can shorten the stages of the biodiesel manufacturing process. The aim of the research was to obtain the optimum conditions for the transesterification process with the addition of co-solvent methyl ester. The operating conditions of the study were palm oil raw material, 1% NaOH catalyst mass, oil : methanol molar ratio = 1:6, stirring speed 100 rpm, reaction temperature 70 ⁰C, reaction time (5 minutes, 10 minutes, 15 minutes, 20 minutes, 25 minutes, 30 minutes) and the mass of co-solvent (0%, 5%, 10%, 15%). The optimum conditions of the study obtained the optimum FAME yield of 57.33% in the transesterification reaction of palm oil with 15% co-solvent methyl ester at a reaction time of 15 minutes. At the optimum condition obtained FAME concentration of 96.63% which meets SNI 7182-2015.
Ekstraksi Minyak Atsiri Kulit Jeruk Lemon (Citrus limon (L.) Burm.f.) dengan Pretreatment Microwave dan Distilasi Air-Uap Elvianto Dwi Daryono; Dwi Ana Anggorowati; Firyaal Putri Verdina; Vina Nur Laily
Jurnal Teknik Kimia USU Vol. 12 No. 2 (2023): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v12i2.12923

Abstract

Lemon peel is a waste containing essential oils which can be used as an aroma enhancer in food and drinks as well as aromatherapy. This study aims to determine the effect of microwave pretreatment power and time on the extraction of lemon peel essential oil. The research phase began with microwave pretreatment, namely lemon peel was put into the microwave with pretreatment times of 2 minutes, 4 minutes, 6 minutes, 8 minutes, and 10 minutes with microwave power of 100 W, 200 W, and 300 W followed by water-steam distillation 150 g of lemon peel. Furthermore, the distillate is put in a separatory funnel for ± 12 hours to separate the essential oil and water. The top layer is essential oil added ± 5 g of sodium sulfate (Na2SO4) to adsorb water. The best conditions for the extraction process of lemon peel essential oil was at 300 W microwave power and 2 minutes of pretreatment which produces clear yellowish lemon peel essential oil with a distinctive lemon smell with a yield of 4.88%, limonene content of 27.501%, and refractive index of 1.48.
Transesterifikasi In Situ Minyak Biji Pepaya Menggunakan Ko-pelarut Tetrahidrofuran: Pengaruh Waktu Reaksi dan Penggunaan Katalis Natrium Hidroksida Elvianto Dwi Daryono; Muyassaroh; Hudha, Mohammad
Jurnal Teknik Kimia USU Vol. 13 No. 2 (2024): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v13i2.16580

Abstract

The papaya seed oil is a non-food oil that can be used as raw material for biodiesel. The transesterification process using oil as raw material requires long process stages so it is not efficient. In situ transesterification with a co-solvent is an alternative to overcome this problem. This research aims to obtain optimum conditions for the in situ transesterification reaction of papaya seed oil with THF co-solvent. The research operating conditions included stirring speed 450 rpm, reaction at room temperature, oil:methanol molar ratio = 1:101.39, catalyst:oil molar ratio = 0.5:1, oil:THF molar ratio = 1: 67.85, reaction time are 3, 8, 13, 18, 23, 28 minutes and reactions with and without a NaOH catalyst. The best research conditions were obtained in the in situ transesterification reaction of papaya seed oil with THF co-solvent using a NaOH catalyst at a reaction time of 33 minutes, producing a crude yield of 74.38% and methyl esters concentration of 98,036.4 ppm and physical properties of biodiesel that met SNI 7182-2015, namely density 0.89 g/mL and acid number 0.44 mg KOH/g sample.
Produksi Biodiesel tanpa Gliserol dari Minyak Kelapa Sawit dengan Variasi Massa Co-solvent dan Waktu Reaksi Elvianto Dwi Daryono; Puji Prasetyo, Angga; Bahri, Syaiful; Maya Sista, Eliya
Jurnal Teknik Kimia USU Vol. 9 No. 2 (2020): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (334.046 KB) | DOI: 10.32734/jtk.v9i2.4006

Abstract

Petroleum fuels are increasingly reduced in line with the increasing industry and population. A potential alternative renewable energy source to replace fuel is biodiesel. The process of making biodiesel that is commonly done is the process of transesterification with glycerol byproducts which is difficult to separate. The method used in this study is the method of interesterification, namely by replacing the methyl alcohol group with a methyl group from methyl acetate with triacetin byproducts. The operating conditions of the process are 250 grams of palm oil mass, 1% wt KOH catalyst mass. oil, reaction temperature 60 ⁰C, stirring speed 800 rpm, mass of co-solvent methyl ester (0, 5, 10, 15, 20% wt. oil) and reaction time (30 minutes, 60 minutes, 90 minutes). The results of the research have been obtained the highest yield with the addition of co-solvent methyl ester of 20% by weight of oil in the reaction time of 30 minutes is 92.43 %.The biodiesel product produced meets SNI 7182:2015 which is an acidic value <0.5 mg-KOH/g.
Pengaruh Penambahan Co-solvent Metil Ester dan Waktu Reaksi pada Proses Transesterifikasi Minyak Kelapa Sawit Menjadi FAME (Fatty Acid Methyl Esters) Daryono, Elvianto Dwi; Mustiadi, Lalu
Jurnal Teknik Kimia USU Vol. 11 No. 1 (2022): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (192.041 KB) | DOI: 10.32734/jtk.v11i1.7668

Abstract

Biodiesel is a renewable energy that is expected to replace diesel. The process of making biodiesel is constrained due to the limited solubility of the reactants. One way to increase the solubility is to add a co-solvent that can dissolve polar and non-polar materials. Methyl ester is the best co-solvent because it is cheap and can shorten the stages of the biodiesel manufacturing process. The aim of the research was to obtain the optimum conditions for the transesterification process with the addition of co-solvent methyl ester. The operating conditions of the study were palm oil raw material, 1% NaOH catalyst mass, oil : methanol molar ratio = 1:6, stirring speed 100 rpm, reaction temperature 70 ⁰C, reaction time (5 minutes, 10 minutes, 15 minutes, 20 minutes, 25 minutes, 30 minutes) and the mass of co-solvent (0%, 5%, 10%, 15%). The optimum conditions of the study obtained the optimum FAME yield of 57.33% in the transesterification reaction of palm oil with 15% co-solvent methyl ester at a reaction time of 15 minutes. At the optimum condition obtained FAME concentration of 96.63% which meets SNI 7182-2015.
Ekstraksi Minyak Atsiri Kulit Jeruk Lemon (Citrus limon (L.) Burm.f.) dengan Pretreatment Microwave dan Distilasi Air-Uap Elvianto Dwi Daryono; Dwi Ana Anggorowati; Firyaal Putri Verdina; Vina Nur Laily
Jurnal Teknik Kimia USU Vol. 12 No. 2 (2023): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v12i2.12923

Abstract

Lemon peel is a waste containing essential oils which can be used as an aroma enhancer in food and drinks as well as aromatherapy. This study aims to determine the effect of microwave pretreatment power and time on the extraction of lemon peel essential oil. The research phase began with microwave pretreatment, namely lemon peel was put into the microwave with pretreatment times of 2 minutes, 4 minutes, 6 minutes, 8 minutes, and 10 minutes with microwave power of 100 W, 200 W, and 300 W followed by water-steam distillation 150 g of lemon peel. Furthermore, the distillate is put in a separatory funnel for ± 12 hours to separate the essential oil and water. The top layer is essential oil added ± 5 g of sodium sulfate (Na2SO4) to adsorb water. The best conditions for the extraction process of lemon peel essential oil was at 300 W microwave power and 2 minutes of pretreatment which produces clear yellowish lemon peel essential oil with a distinctive lemon smell with a yield of 4.88%, limonene content of 27.501%, and refractive index of 1.48.
Transesterifikasi In Situ Minyak Biji Pepaya Menggunakan Ko-pelarut Tetrahidrofuran: Pengaruh Waktu Reaksi dan Penggunaan Katalis Natrium Hidroksida Elvianto Dwi Daryono; Muyassaroh; Hudha, Mohammad
Jurnal Teknik Kimia USU Vol. 13 No. 2 (2024): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v13i2.16580

Abstract

The papaya seed oil is a non-food oil that can be used as raw material for biodiesel. The transesterification process using oil as raw material requires long process stages so it is not efficient. In situ transesterification with a co-solvent is an alternative to overcome this problem. This research aims to obtain optimum conditions for the in situ transesterification reaction of papaya seed oil with THF co-solvent. The research operating conditions included stirring speed 450 rpm, reaction at room temperature, oil:methanol molar ratio = 1:101.39, catalyst:oil molar ratio = 0.5:1, oil:THF molar ratio = 1: 67.85, reaction time are 3, 8, 13, 18, 23, 28 minutes and reactions with and without a NaOH catalyst. The best research conditions were obtained in the in situ transesterification reaction of papaya seed oil with THF co-solvent using a NaOH catalyst at a reaction time of 33 minutes, producing a crude yield of 74.38% and methyl esters concentration of 98,036.4 ppm and physical properties of biodiesel that met SNI 7182-2015, namely density 0.89 g/mL and acid number 0.44 mg KOH/g sample.
Proses Interesterifikasi Minyak Kelapa Sawit Menjadi Biodiesel Dengan Co-solvent Metil Ester Daryono, Elvianto Dwi
Jurnal Rekayasa Bahan Alam dan Energi Berkelanjutan Vol. 4 No. 1 (2020)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rbaet.2020.004.01.01

Abstract

Saat ini kebutuhan akan bahan bakar minyak semakin meningkat seiring dengan meningkatnya populasi dan berkembangnya teknologi, akan tetapi cadangan minyak bumi yang berasal dari fosil semakin menipis karena sifatnya yang tidak dapat diperbaharui. Oleh karena itu, banyak upaya yang dilakukan untuk mencari sumber energi alternatif yang dapat diperbaharui (renewable). Salah satu sumber energi alternatif yang saat ini banyak dikembangkan adalah fatty acid methyl ester (FAME) yang biasa dikenal dengan nama biodiesel. Biodiesel adalah bahan bakar alternatif yang menjanjikan yang dapat dibuat dari minyak goreng bekas, lemak hewani atau minyak nabati yang dikonversikan ke dalam metil ester melalui proses transesterifikasi dengan alkohol. Metode yang digunakan adalah metode interesterifikasi, yaitu dengan mengganti gugus metil alkohol dengan gugus metil dari metil asetat dengan produk samping triacetin. Hasil dari penelitian yang telah dilakukan didapat konsentrasi optimum dengan massa katalis 0,5% berat minyak pada kecepatan pengadukan 600 rpm yaitu sebesar 4,80%. Sedangkan yield optimum juga didapatkan dengan massa katalis KOH 0,5% berat minyak pada kecepatan pengadukan 600 rpm yaitu sebesar 5,56%. Dapat disimpulkan bahwa kondisi optimum pada penelitian ini adalah dengan massa katalis 0,5% berat minyak dan kecepatan pengadukan 600 rpm.
PROSES INTERESTERIFIKASI MINYAK JELANTAH MENJADI METIL ESTER DENGAN BIOKATALIS EKSTRAK DAUN SALAM (SYZYGIUM POLYANTHUM) Fitri Icha Oryza Sativa; Tia Ardya Wahyu Cahyani; Rizky Nartika Nurfitri; Eka Maretyaningsih Agung Purwanti; Ahmad Faizal Alfiniam; Elvianto Dwi Daryono
JURNAL INTEGRASI PROSES Vol 13, No 1 (2024)
Publisher : JURNAL INTEGRASI PROSES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/jip.v13i1.24556

Abstract

Sebagian besar proses pembuatan biodiesel menggunakan katalis homogen yang memerlukan netralisasi dan pemisahan. Beberapa bagian tumbuhan seperti daun, akar, dan buah mengandung senyawa aromatik yang bisa digunakan sebagai biokatalis. Daun salam mengandung senyawa aromatik flavonoid dan kuersetin yang berpotensi digunakan sebagai biokatalis pada pembuatan biodiesel sekaligus bioaditif sehingga tidak diperlukan dipisahkan. Studi ini bertujuan untuk mengetahui pengaruh waktu reaksi dan konsentrasi biokatalis ekstrak daun salam pada reaksi interesterifikasi minyak jelantah menjadi biodiesel. Bahan baku yang digunakan adalah minyak jelantah yang direaksikan dengan metil asetat untuk menghasilkan metil ester dan triasetin menggunakan biokatalis ekstrak daun salam. Berat minyak jelantah yang digunakan 250 g, rasio mol minyak:metil asetat = 1:6, temperatur 60°C dengan pengadukan 300 rpm, konsentrasi biokatalis 1, 2, dan 3% dari berat minyak jelantah, serta waktu reaksi 15, 30, 45, 60, dan 75 menit. Kondisi terbaik didapatkan pada proses interesterifikasi minyak jelantah dengan biokatalis ekstrak daun salam 3% pada waktu reaksi 60 menit dengan crude yield 19,216%.
PENGARUH SUHU DAN KONSENTRASI MINYAK ATSIRI SEREH TERHADAP SIFAT FISIK MINYAK JELANTAH SEBAGAI BAHAN BAKAR PENGGANTI BIODIESEL Theresia Sufin; Elvianto Dwi Daryono
JURNAL INTEGRASI PROSES Vol 13, No 2 (2024)
Publisher : JURNAL INTEGRASI PROSES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/jip.v13i2.27700

Abstract

Harga biodiesel masih belum bisa bersaing dengan harga solar karena harga bahan baku minyak nabati dan proses pembuatannya yang relatif mahal dan memerlukan banyak energi. Salah satu solusi untuk mengatasi masalah tersebut adalah mencampurkan minyak jelantah dengan bioaditif minyak atsiri sehingga diharapkan hasil campurannya mempunyai sifat fisik seperti biodiesel. Harga minyak atsiri sereh lebih murah jika dibandingkan reaksi transesterifikasi minyak nabati dengan metanol menggunakan katalis basa yang perlu biaya lebih mahal. Penelitian ini bertujuan untuk mengetahui pengaruh suhu pencampuran dan konsentrasi minyak atsiri sereh yang dicampurkan dengan minyak jelantah terhadap sifat fisiknya. Kondisi operasi penelitian meliputi volume minyak jelantah 150 mL, kecepatan pengadukan 500 rpm, waktu pencampuran 60 menit, konsentrasi minyak atsiri sereh (10, 11, 12, 13, dan 14%) dan suhu pencampuran (30, 40, dan 50°C). Penelitian dimulai dengan perlakuan zeolit sebagai adsorben, perlakuan minyak jelantah, dan pencampuran minyak jelantah yang telah dimurnikan dengan minyak atsiri sereh. Hasil penelitian mendapatkan kondisi terbaik pencampuran minyak jelantah dengan bioaditif minyak atsiri sereh pada konsentrasi minyak atsiri 10% dan suhu pencampuran 50°C dengan hasil analisis densitas 0,876 g/mL dan viskositas 4,828 cSt yang memenuhi SNI 7182-2015 serta kadar air 0,1092% yang tidak memenuhi standar.
Co-Authors Adam Yonanda Adi Sintoyo Adrianus Chrisantus Rengga Ahmad Faizal Alfiniam Ahmad Isnaini, Ahmad Dio Ajeng Oktavian Dwi Ana Anggorowati Dzaky Aqillah Fikriansyah Eka Maretyaningsih Agung Purwanti Endah Kusuma Rastini Erni Junita Sinaga Faidliyah Nilna Minah Febriara Fassa Aulia Rahman Firyaal Putri Verdina Fitri Icha Oryza Sativa Gunawan, Rendi Chandra Hudha, Mohammad Hutasoit, Gading F Imaniar Safitri Jimmy Lalu Mustiadi Maya Sista, Eliya Miftachul Arif Pratama Miraekel January Ekfar Princessa Mohammad Istnaeny Hudha MUYASSAROH Muyassaroh Muyassaroh Muyassaroh Nanik Astuti Rahman Puji Prasetyo, Angga Pursitta, Anggriarida Titta Qori Kurrota Aini Rendi Chandra Gunawan Rini Kartika Rini Kartika Dewi Rizky Nartika Nurfitri Sintoyo, Adi Siswi Astuti SYAIFUL BAHRI Theresia Sufin Tia Ardya Wahyu Cahyani Tri Poespowati Vina Nur Laily Zahra, Hadryza Anduanda Zukhriyah Zukhriyah