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All Journal Molekul: Jurnal Ilmiah Kimia Jurnal Sains Materi Indonesia
Evi Triwulandari
Chemistry Department, Faculty of Mathematics and Natural Sciences Gadjah Mada University, Yogyakarta
Biochemistry, Genetics & Molecular Biology Chemistry Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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A Comparative Evaluation of Solid-State Catalysts for Synthesis of Non-Ionic Surfactant Based Oleic Acid for Enhanced Oil Recovery (EOR) Sampora, Yulianti; Sofyan, Muhammad Ihsan; Ghozali, muhammad; Triwulandari, Evi; Restu, Witta Kartika; Ndruru, Sun Theo Constan Lotebulo; Devy, Yenni Apriliany; Handayani, Annisa Fitriyah; Safitri, Gita Nur; Satria, Erza Eka
Molekul Vol 20 No 1 (2025)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jm.2025.20.1.11077

Abstract

Abstract. The Enhanced Oil Recovery (EOR) process with chemical techniques carried out by injecting chemicals such as surfactants, can be an alternative to increase oil production, especially in old oil wells. This study investigated the best formulation of non-ionic surfactants based on the mole ratio of oleic acid and PEG-400 as well as catalyst types such as KOH and p-TSA 1%, which are used in surfactant synthesis to be able to increase oil production. The tests carried out are the value of acid, saponification, ester, and iodine, FTIR, NMR as well as a test of compatibility, phase behavior, and IFT. The results showed that the best formulation of ester polyethylene glycol oleate with reaction temperature conditions of 130oC was at a mole ratio of 1: 4 using a 1% p-TSA catalyst with a value of acid is 3,61 mg KOH/g, saponification is 144,12 mg KOH/g, ester is 140,51 mg KOH/g and iodine is 76,70 g I2/100 g. The compatibility tests and phase behavior show that this surfactant can be developed in chemical EOR with an IFT value of 2,6 x 10-1 mN/m. Keywords: Enhanced oil recovery, oleic acid, solid-state catalysts, synthesis
Preparation of Polyurethane-Modified Epoxy Coating Materials Based on Vegetable Oil Derivated Ester Ghozali, Muhammad; Restu, Witta Kartika; Triwulandari, Evi; Fauzi, Lutfi Rizky
Jurnal Sains Materi Indonesia Vol. 25 No. 1 (2023): Jurnal Sains dan Materi Indonesia
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jsmi.2023.271

Abstract

This study utilize vegetable oil derivatives as a polyol in polyurethane. A modification of epoxy using polyurethane was done using ester derivative of vegetable oils as polyols, which was polyethylene glycol monooleate (PEGMO). The PEGMO was synthesized via an esterification reaction. The synthesis of polyurethane-modified epoxy using polyethylene glycol monooleate ester (PME-PEGMO) was conducted by reacting epoxy, tolonate and PEGMO. Analysis results of FTIR and H-NMR showed a new absorption peak derived from the urethane bond. The mechanical and thermal properties were characterized by a universal testing machine (UTM) and thermogravimetry analysis (TGA), respectively. According to the analysis results, it is shown that the addition of polyethylene glycol monooleate ester-based polyurethane on epoxy improved the mechanical properties of the epoxy, from 69.61 kgf/cm2 to139.80 kgf/cm2. However, it decreased the thermal stability of the epoxy. At 500°C, the mass of epoxy was remaining 28%, while the PME-PEGMO was only 13%.
Co-Authors AGUS HARYONO Ahmad Randy Devy, Yenni Apriliany Dewi Sondari Fauzi, Lutfi Rizky Handayani, Annisa Fitriyah Muhammad Ghozali Ndruru, Sun Theo Constan Lotebulo Ridwanuloh, Asep Muhamad Safitri, Gita Nur Sampora, Yulianti Satria, Erza Eka Sofyan, Muhammad Ihsan Witta Kartika Restu