Agam Duma, Kalista Wibowo, Rizki Megawati, Vilia Kartika Setyaningrum, Erika Wahyu Putri, A. S. Handayani, M. D. Solikhah, Achmad Chafidz
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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. 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引用次数: 0
摘要
脂肪酸甲酯(FAME)或棕榈油甲酯是棕榈油衍生物之一,其中可生成的阴离子表面活性剂之一是甲酯磺酸盐(MES)。这种生物基表面活性剂可以降低油和水之间的界面张力(IFT)。为了生产生物基聚合物表面活性剂,将 MES 中的磺酸基接枝到聚合物链上。棕榈油甲酯与硫酸(H2SO4)反应合成 MES。然后,MES 与丙烯酸乙酯(EA)单体反应,合成聚合物表面活性剂。研究用这种方法生产生物基聚合物表面活性剂是本研究的新颖之处。研究表明,MES 与 EA 的摩尔比为 1:0.5 时聚合效果最好,粘度最高,为 14.47 mm2/s。临界胶束浓度(CMC)分析表明,当 MES 与 EA 的摩尔比为 1:0.5 时,临界胶束浓度为 0.5%,对应的最低界面张力(IFT)为 1.95 x 10-3 mN/m。同时,接触角从 58.44°逐渐下降到 11.79°。此外,还利用傅立叶变换红外光谱和 H-NMR 对聚合物表面活性剂进行了分析,成功证实了生物基聚合物表面活性剂的形成。岩心淹没实验发现,大约有 16.57% 的石油可以被回收。研究结果揭示了该聚合物表面活性剂在化学强化采油(CEOR)中的良好应用潜力。
Investigating potential application of bio-based polymeric surfactant using methyl ester from palm oil for chemical enhanced oil recovery (CEOR)
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).