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All Journal Scientific Contributions Oil and Gas
Novia Rita
Department of Petroleum Engineering, Faculty of Engineering, Islamic University of Riau
Chemical Engineering, Chemistry & Bioengineering Energy

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Initial Analysis of The Characteristics of Sweet Orange (Citrus Sinensis) Peel Essential Oils as an Alternative Surfactant in The Tertiary Oil Recovery Method Arik Daniati; Novia Rita; Romal Ramadhan; Desi Purnama Sari
Scientific Contributions Oil and Gas Vol 46 No 2 (2023)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.46.2.1562

Abstract

Surfactant flooding is one of the types of EOR that reduces the surface tension between two immiscible fluids. The essential oil of sweet orange peel (citrus sinensis) contains a methyl ester group found in the pectin of sweet orange peel, so it has the potential as a raw material for making Methyl Ester Sulfonate by transesterification and sulfonation processes using H2SO4 reactants. This research is focused on testing the MES characteristics of the essential oil of orange peel in the form of density, viscosity, pH, acid number, and compatibility tests. The results of testing the characteristics of the essential oil of sweet orange peel obtained a density of 0.9 g/cm3, a viscosity of 1.36 cP, a neutral pH of 7, and an acid number of 3.048%, so based on these characteristic values the MES of the essential oil of orange peel was included in the initial screening. Alternative MES. Based on the surfactant compatibility test with a concentration scenario of 0.1%, 0.3%, 0.5%, 0.7%, and 1% in brine with a salinity of 15,000 ppm, the best is the 0.1% surfactant scenario. However, all scenarios qualify for compatibility. Certain surfactant solutions are not clear or cloudy, but that does not mean they cannot be injected
Fungal Analysis of Aspergillus niger as an Alternative Biosurfactant for Microbial Injection-Enhanced Oil Recovery Novia Rita; Agus Dahlia; Hanna Soraya; Ilmiati Ilmiati
Scientific Contributions Oil and Gas Vol 48 No 1 (2025)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.v48i1.1694

Abstract

This study aims to evaluate the ability of Aspergillus niger to produce biosurfactants as a cost-effective and environmentally friendly alternative for the microbial-enhanced oil recovery (MEOR) process. Biosurfactants were produced using different carbon sources: waste cooking oil, liquid paraffin, and tapioca flour in Stone Mineral Salt Solution media. The growth and production of biosurfactants from these sources were analyzed through oil displacement tests, emulsification activity, and surface tension measurements. Tapioca flour emerged as the best carbon source, achieving the highest oil displacement area of 6 cm and an emulsification index of 51.3%. These findings suggest that biosurfactants obtained from Aspergillus niger have significant potential for MEOR applications, providing an eco-friendly solution for enhanced oil recovery.
Co-Authors Agus Dahlia Arik Daniati Desi Purnama Sari Hanna Soraya Ilmiati Ilmiati Romal Ramadhan