Synthesis and Performance Evaluation of In-situ Grafted Carbon Black Nanoparticle as Demulsifier for Treating Crude Oil-in-water Emulsions
WANG Huanjiang1, YANG Qiliang1, ZHANG Yuchen1, XU Lei1, LIU Juan2, REN Sili2,*
1 School of Chemical Engineering, Guizhou Minzu University, Guizhou Provincial Key Laboratory of Low Dimensional Materials and Environmental and Ecological Restorations, Guiyang 550025, China 2 School of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Key Laboratory of Mining Engineering of Jiangxi Province, Ganzhou 341000,Jiangxi, China
Abstract: The good aqueous suspensions of amphiphilic aminated carbon black nanoparticles (CB-EDA) are prepared via situ grafted methodby industrial carbon black for treating 10.0wt% crude oil in water emulsions (pH=8.9). The structure and morphology characterization of CB-EDA were explored by Fourier transform infrared spectroscopy (IR), X-ray photoelectron spectroscopy (XPS), Atomic force microscopy (AFM), and high-resolution transmission electron microscopy (TEM). Encouragingly, the demulsification tests indicated that the residual oil in separated water samples was as low as 53.45 mg/L, corresponding to a demulsification effect of over 99.90% at optimum dosage. Besides, the CB-EDA, graphene oxide (GO), reduced graphene oxide (rGO), and hydroxylated carbon black (CB-PVA) for detachment oil from the crude oil-in-water emulsion under alkaline conditions are studied. The zeta potential measurement and mechanism analysis results revealed that CB-EDA has better demulsification efficiency and universality than other nanocarbon-based demulsifiers at ambient temperature. As an amphiphilic nanocarbon-based material, the CB-EDA prefer to migrate to the oil/water interface after add into emulsions adding once CB-EDA is reached at the oil/water interface which can displace the emulsified molecules of the emulsion by strong π-π/n-π interaction. More importantly, the zeta potentials are CB-EDA is positive, which can compress double electric layer of dispersed oil droplets to promote emulsified oil droplets accumulation. In the current work, we overcame the disadvantages of the nanocarbon-based demulsifiers, effectively improved their efficiency and universality, and developed a promising CB-EDA demulsifier for the separation of O/W emulsion.
1 Cui C Z, Li S, Yang Y, et al. Acta Petrolei Sinica, 2018, 39(10), 1155 (in Chinese). 崔传智, 李松, 杨勇, 等. 石油学报, 2018, 39(10), 1155. 2 Hu W R, Bao J W. Journal of China University of Petroleum (Natural Science Edition), 2018, 42(4), 1 (in Chinese Chinese). 胡文瑞, 鲍敬伟. 中国石油大学学报(自然科学版), 2018, 42(4), 1. 3 Zhang L Z, Zhao S Q, Shi Q, et al. Scientia Sinica Chimica, 2020, 50(2), 192 (in Chinese). 张霖宙, 赵锁奇, 史权, 等. 中国科学:化学, 2020, 50(2), 192. 4 Bi Y G, Xu Z J, Jia X R, et al. Materials Reports A:Review Papers, 2017, 31(7), 63 (in Chinese). 毕研刚, 许泽军, 贾欣茹, 等. 材料导报:综述篇, 2017, 31(7), 63. 5 Saad M A, Kamil M, Abdurahman N H, et al. Processes, 2019, 7(7), 470. 6 Zolfaghari R, Fakhrulrazi A, Abdullah L C, et al. Separation & Purification Technology, 2016, 170, 377. 7 Liu J, Zhao Y B, Hu B, et al. Chemical Industry and Engineering Progress, 2013, 32(4), 891 (in Chinese). 刘娟, 赵亚博, 胡斌, 等. 化工进展, 2013, 32(4), 891. 8 Feng X H, Xu Z H, Masliyah J H. Energy & Fuels, 2009, 23(1), 451. 9 Hazrati N, Beigi A A M, Abdouss M, et al. Fuel, 2018, 229, 126. 10 Ezzat A O, Atta A M, et al. Energy & Fuels, 2018, 32(1), 214. 11 Ismail A I, Atta A M, El-Newehy M, et al. Polymers, 2020, 12(6), 1273. 12 Guzmán-Lucero D, Flores P, Rojo T, et al. Energy & Fuels, 2010, 24(6), 3610. 13 Lei R, Wang J R, Zhao S, et al. Journal of Chemical Industry and Engineering(China), 2020, 72(2), 1191, (in Chinese). 雷然, 王嘉柔, 赵颂, 等. 化工学报, 2020, 72(2), 1191. 14 Zheng X M, Fan R Y, Xiao Q R, et al. Journal of Chemical Industry and Engineering(China), 2016, 67(5), 1957 (in Chinese). 郑细鸣, 范荣玉, 肖启瑞, 等. 化工学报, 2016, 67(5), 1957. 15 Xu H, Jia W, Ren S, et al. Journal of the Taiwan Institute of Chemical Engineers, 2018, 93, 492. 16 Liu J, Li X C, Jia W H, et al. Energy & Fuels, 2015, 29(7), 4644. 17 Wang H J, Liu J, Xu H Y, et al. RSC Advances, 2016, 6, 106297. 18 Liu J, Wang H J, Li X C, et al. Fuel, 2016, 189, 79. 19 Liu J, Li X C, Jia W H, et al. Journal of Dispersion Science and Technology, 2016, 37, 1294. 20 Wang H J, Xu H Y, Jia W H, et al. Journal of Dispersion Science & Technology, 2017, 4, 497. 21 Fan G T, Lyu R L, Gao X, et al. Journal of Applied Polymer Science, 2018, 135(7), 45867. 22 Li H Y, Chen H Z, Sun J Z, et al. Macromolecular Rapid Communications, 2003, 24, 715. 23 Longhi M, Bertacche V, Bianchi C L, et al. Chemistry of Materials, 2006, 18(17), 4130. 24 Lima M C F S, Sthefany Z A, Hélio R, et al. Carbon, 2016, 109, 290. 25 Teng C C, Ma C C M, Lu C H, et al. Carbon, 2011, 49(15), 5107. 26 Strzemiecka B, Voelkel A, Donate-Robles J, et al. Applied Surface Science, 2014, 316, 315. 27 Silva W M, Ribeiro H, Seara L M, et al. Journal of the Brazilian Chemical Society, 2012, 23(6), 1078. 28 Gao S, Moran K, Xu Z H, et al. Energy & Fuels, 2009, 23(5), 2606. 29 Umar A A, Saaid I M, Sulaimon A A, et al. Journal of Petroleum Science & Engineering, 2018, 165, 673. 30 Wang, H J, Xu, H Y, Jia, W H, et al. Energy & Fuels, 2017, 49(3), 2488.
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2023, Vol. 37 
