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All Journal Reaktor Jurnal Sains Materi Indonesia Communications in Science and Technology INTEK: Jurnal Penelitian Jurnal Ilmu Pengetahuan dan Teknologi (IPTEK)
Agam Duma Kalista Wibowo
Department Of Chemical Engineering, Institut Teknologi Indonesia (ITI)
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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SINTESIS METIL ESTER SULFONAT MELALUI SULFONASI METIL ESTER MINYAK KEDELAI UNTUK APLIKASI CHEMICAL FLOODING Richie Putra; Renisa Ismayanti; Agam Duma Kalista
Jurnal Sains Materi Indonesia Vol 19, No 2: JANUARI 2018
Publisher : Center for Science & Technology of Advanced Materials - National Nuclear Energy Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17146/jsmi.2018.19.2.4145

Abstract

Pada penelitian ini telah dilakukan sintesis Metil Ester Sulfonat (MES)dari bahan baku yaitu Methyl Soyate dengan NaHSO3 sebagai agent pensulfonasi. Tahapan proses untuk sintesis Metil Ester Sulfonat yaitu reaksi sulfonasi, pemurnian, penetralan dan pemisahan. Reaksi sulfonasi dilakukan pada beberapa kondisi proses yaitu, suhu reaksi 100 °C, 110 °C, 120 °C, waktu reaksi 210 menit, 270 menit, 330 menit dan rasio mol reaktan antara metil ester dengan NaHSO3 (1:1,1:1,5,1:2) dengan katalis Al2O3 1,5% pada reaksi sulfonasi. Pemurnian dilakukan pada 55 °C dan 60 menit dengan penambahan metanol 35 %(v/v). Penetralan dilakukan dengan NaOH 20% sampai pH6-8. Metanol sisa pada Metil Ester Sulfonat kemudian dipisahkan menggunakan rotary evaporator. MES yang dinyatakan memenuhi uji kompabilitas yaitu MES pada variabel (100 °C, 210 menit dan rasio mol 1:2). Selanjutnya dilakukan uji FT-IR untuk melihat terbentuknya gugus sulfonat. Pada hasil uji FT-IR gugus sulfonat terbentuk pada spektrum panjang gelombang antara (1000-1300) cm-1 dimana puncak tertinggi terdapat pada panjang gelombang 1176 cm-1. Dari hasil uji kualitatif tersebut kemudian MES diuji secara kuantitatif yaitu dengan pengujian IFT menggunakan bahan pembanding light oil lapangan X. Didapatkan penurunan tegangan permukaan antara brine water 12.000 ppm dengan light oil (lapangan X) dengan penambahan 0,3 %(v/v). MES dari sampel blanko sebesar 3,36 dyne/cm2 menjadi 1,54 dyne/cm2.
Synthesis and Characterization of Polymeric Surfactant from Palm Oil Methyl Ester and Vinyl Acetate for Chemical Flooding Agam Duma Kalista Wibowo; Pina Tiani; Lisa Aditya; Aniek Sri Handayani; Marcelinus Christwardana
Reaktor Volume 21 No. 2 June 2021
Publisher : Dept. of Chemical Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (505.698 KB) | DOI: 10.14710/reaktor.21.2.65-73

Abstract

Surfactants for enhanced oil recovery are generally made from non-renewable petroleum sulfonates and their prices are relatively expensive, so it is necessary to synthesis the bio-based surfactants that are renewable and ecofriendly. The surfactant solution can reduce the interfacial tension (IFT) between oil and water while vinyl acetate monomer has an ability to increase the viscosity as a mobility control. Therefore, polymeric surfactant has both combination properties in reducing the oil/water IFT and increasing the viscosity of the aqueous solution simultaneously. Based on the study, the Critical Micelle Concentration (CMC) of Polymeric Surfactant was at 0.5% concentration with an IFT of 7.72x10-2 mN/m. The best mole ratio of methyl ester sulfonate to vinyl acetate for polymeric surfactant synthesis was 1:0.5 with an IFT of 6.7x10-3 mN/m. Characterization of the product using FTIR and HNMR has proven the creation of polymeric surfactant. Based on the wettability alteration study, it confirmed that the product has an ability to alter from the initial oil-wet to water-wet quartz surface. In conclusion, the polymeric surfactant has ultralow IFT and could be an alternative surfactant for chemical flooding because the IFT value met with the required standard for chemical flooding ranges from 10-2 to 10-3 mN/m.Keywords: Enhanced Oil recovery, Interfacial Tension, Methyl Ester Sulfonate, Polymeric surfactant, vinyl acetate
Model kinetika sintesis biodiesel dari biji karet (Hevea brasiliensis) dengan metode esterifikasi in situ Agam Duma Wibowo
JURNAL ILMU PENGETAHUAN DAN TEKNOLOGI (IPTEK) Vol. 1 No. 1 (2017): Jurnal Ilmu Pengetahuan dan Teknologi (IPTEK)
Publisher : Institut Teknologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31543/jii.v1i1.88

Abstract

Model kinetika untuk sintesis biodiesel merupakan salah satu topik yang cukup menarik untuk diteliti dan dipelajari, dikarenakan berkaitan erat dengan laju reaksi dan persamaan laju reaksi dalam sintesis biodiesel secara in situ terutama untuk sintesis biodiesel dari biji karet. Biodiesel dari biji karet ini cukup potensial dikarenakan minyak yang terkandung di dalamnya merupakan minyak nonedible. Tujuan dari penelitian ini adalah untuk mendapatkan model kinetika produksi biodiesel yang sesuai untuk metode in situ dengan sasaran sebagai bahan bakar alternatif ramah lingkungan dari bahan nonedible. Penelitian ini memfokuskan pada penentuan model kinetika berdasarkan reaksi esterifikasi untuk proses produksi biodiesel dari biji karet menggunakan konsentrasi katalis H2SO4 0,25% (v/v), rasio (w:v) bahan baku terhadap metanol (1:3) selama 2 jam dengan suhu 60oC. Model kinetika yang sesuai dan dapat mewakili proses produksi biodiesel ini adalah : Menggunakan program MATLAB 7.0.1 didapatkan nilai konstanta laju reaksi esterifikasi (kf) adalah 0,002/menit. Kata kunci : Biodiesel, biji karet, in situ, esterifikasi, model kinetika 
The Ozonation Process for Increasing Value Added Tallow of Cow as A Polyol Linda Aliffia Yoshi; Nadya Fitria; Naufal Rozin Albana; Enjarlis Enjarlis; Agam Duma Wibawa
INTEK: Jurnal Penelitian Vol 7, No 1 (2020): April 2020
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (738.728 KB) | DOI: 10.31963/intek.v7i1.1604

Abstract

The purpose of this research is to produce polyol, through the ozonation process and to find the best catalysts and solvents for the formation of hydroxyl group. The hydroxyl group is indicator of the formation polyol. The process of making polyols is unsaturated fatty acids of the cow through the process of ozonation, using the solvents of sorbitol and glycerol, as well as catalysts of sulfuric acid and sodium hydroxide. The reaction temperature is run at 50oC and ozone levels are 4.33, 4.795, 5.021, 5.480 grams. The best results used a glycerol solvent, a sodium sulfate catalyst, and a 5.48 gram ozon content.
Investigating potential application of bio-based polymeric surfactant using methyl ester from palm oil for chemical enhanced oil recovery (CEOR) Wibowo, Agam Duma Kalista; Megawati, Rizki; Setyaningrum, Vilia Kartika; Putri, Erika Wahyu; Joelianingsih; Handayani, Aniek Sri; Solikhah, Maharani Dewi; Chafidz, Achmad
Communications in Science and Technology Vol 8 No 2 (2023)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.8.2.2023.1318

Abstract

Fatty Acid Methyl Ester (FAME) or palm oil methyl ester is one of the palm oil derivatives in which one of the anionic surfactants that can be generated from it is methyl ester sulfonate (MES). This bio-based surfactant can reduce the interfacial tension (IFT) between oil and water. To produce a bio-based polymeric surfactant, sulfonate groups from MES were grafted onto polymer chains. Palm oil methyl ester was reacted with sulfuric acid (H2SO4) to synthesize MES. Afterwards, MES was reacted with the Ethyl Acrylate (EA) monomer to synthesize polymeric surfactant. Investigating this route to produce a bio-based polymeric surfactant has become the novelty of this study. This study showed that the best polymerization result was obtained at a mole ratio of MES to EA (1:0.5) with the highest viscosity of 14.47 mm2/s. The critical micelle concentration (CMC) analysis showed 0.5% at a mole ratio of MES to EA (1:0.5) which corresponded to the lowest interfacial tension (IFT) of 1.95 x 10-3 mN/m. Meanwhile, the contact angle gradually decreased from 58.44 to 11.79°. The polymeric surfactant, furthermore, was analyzed using FTIR and H-NMR and successfully confirmed the formation of bio-based polymeric surfactant. The core flooding experiment found that approximately 16.57% of oil could be recovered. The results of the study revealed a good potential of the polymeric surfactant to be applied in chemical enhanced oil recovery (CEOR).
Co-Authors Aniek Sri Handayani Chafidz, Achmad E. Enjarlis Joelianingsih Linda Aliffia Yoshi, Linda Aliffia Lisa Aditya Maharani Dewi Solikhah, Maharani Dewi Marcelinus Christwardana Megawati, Rizki Nadya Fitria Naufal Rozin Albana Pina Tiani Putri, Erika Wahyu Renisa Ismayanti Richie Putra Setyaningrum, Vilia Kartika