磁性复合粒子的可控制备及其油水分离性能研究
发布时间：2021-01-03 16:40
原油与水形成的乳液存在于原油工业开采及后处理的各个阶段。炼油阶段的第一步即需要将油与水和其他的杂质如沙子和油泥等分离。尽管原油破乳在生产中非常重要,然而到目前为止破乳的方法很有限。由于各地的原油品质差异很大,导致对于原油/水乳液的形成、表征以及破乳过程的监测等研究存在很大困难。因此,研制广谱的破乳剂非常困难。随着多数油田进入二次采油的后期或进入三次采油期,每百吨采出液体中有近90吨水,因此,探索高效的油水分离方法备受科学界和工业界的关注。基于此,我们设计合成了具有良好磁响应性及界面活性的双面、树莓状及核壳结构的磁性复合粒子,旨在利用磁性粒子在油水界面的作用并辅以外磁场实现破乳的目的。本文在合成了系列磁性复合粒子的基础上,对磁性复合纳米粒子的结构、磁性粒子同乳化油的混合条件、温度以及原油的品质对破乳效果的影响等进行了系统研究,结果表明所合成的几种磁性复合纳米粒子具有良好的界面活性、高的磁响应性及破乳性能。论文的主要工作如下:首先,在水热法制备的磁性纳米粒子表面通过甲基丙烯酸缩水甘油脂（GMA）、甲基丙烯酸甲酯（MMA）和二乙烯基苯（DVB）的沉淀聚合包覆得到具有核壳结构的Fe3...
【文章来源】：西北工业大学陕西省 211工程院校 985工程院校
【文章页数】：156 页
【学位级别】：博士
【文章目录】：
摘要
Abstract
Chapter 1: Literature review
1.1 Background
1.2 Emulsion Systems
1.2.1 Formation of water in oil emulsion
1.2.2 Stability of water in oil emulsion
1.3 Emulsion destabilization methods
1.3.1 Chemical demulsification
1.3.2 Thermal demulsification methods
1.3.3 Electrical demulsification method
1.3.4 Microfiltration demulsification method
1.3.4.1 Microfiltration
1.3.4.2 Ultrafiltration
1.3.4.3 Hyperfiltration /reverse osmosis
1.3.4.4 Mechanism of microfiltration
1.4 Magnetic composite microspheres as demulsifier
1.4.1 Magnetite
1.4.2 Magnetic composite microspheres
1.5 Problem statement
1.6 Aims and objectives
3O4@P（GMA-MMA-DVB） magnetic composite core-shell microspheres">Chapter 2: Fabrication, characterization and demulsification properties of amino modified Fe3O4@P（GMA-MMA-DVB） magnetic composite core-shell microspheres
2.1 Introduction
2.2 Experimental
2.2.1 Materials
3O4 nanoparticles"> 2.2.2 Preparation of Fe3O4 nanoparticles
3O4@P（GMA-MMA-DVB） magnetic composite microspheres"> 2.2.3 Synthesis of Fe3O4@P（GMA-MMA-DVB） magnetic composite microspheres
3O4@P（GMA-MMA-DVB）"> 2.2.4 Surface modification of Fe3O4@P（GMA-MMA-DVB）
2.2.5 Recycle test
2.2.6 Surface and interfacial tension of emulsion
2.2.7 Characterization
2.3 Results and discussion
2.3.1 Morphology of magnetic composite core shell microspheres
3O4@P（GMA-MMA-DVB）"> 2.3.2 Surface modification of Fe3O4@P（GMA-MMA-DVB）
2.3.3 Crystal structure of the synthesized magnetic materials
2.3.4 Magnetic properties of the magnetic composite core-shell microspheres
2.3.5 Interfacial properties of the magnetic composite core-shell microspheres
2.3.6 Demulsification study of the magnetic composite core-shell microspheres
2.3.7 Recycling
2.3.8 Formation and application mechanism
2.4 Conclusion
3O4@P（MMA-AA-DVB） magnetic composite core-shell microspheres">Chapter 3: Preparation, characterization and demulsification properties of Fe3O4@P（MMA-AA-DVB） magnetic composite core-shell microspheres
3.1 Introduction
3.2 Experimental
3.2.1 Materials
3O4 microspheres"> 3.2.2 Preparation and surface modification of Fe3O4 microspheres
3.2.3 Synthesis and assembly of the magnetic composite core-shell microspheres
3.2.4 Emulsion preparation
3.2.5 Demulsification
3.2.6 Recycle test
3.2.7 Surface and interfacial tension of the emulsion
3.2.8 Characterization
3.3 Results and discussion
3.3.1 Morphology and components of magnetic core-shell microspheres
3.3.2 Magnetic properties of the magnetic core-shell microspheres°
3.3.3 Interfacial properties of the magnetic composite core-shell microspheres
3.3.4 Demulsification study
3.3.5 Recycling
3.3.6 Formation and application mechanism
3.4 Conclusion
3O4 Janus magnetic composite microspheres">Chapter 4: Fabrication, structure tailoring and demulsification properties of P（MMA-AA-DVB）/Fe3O4 Janus magnetic composite microspheres
4.1 Introduction
4.2 Experimental
4.2.1 Materials
4.2.2 Synthesis of P（MMA-AA-DVB） microspheres
3O4 Janus magnetic microspheres"> 4.2.3 Synthesis of P （MMA-AA-DVB）/Fe3O4 Janus magnetic microspheres
4.2.4 Emulsion preparation
4.2.5 Demulsification
4.2.6 Recycle test
4.2.7 Surface and interfacial tension of the emulsion
4.2.8 Characterization
4.3 Results and discussion
4.3.1 Morphology and components of the microspheres
3O4"> 4.3.2 Magnetic properties of Janus like P（MMA-AA-DVB）/Fe3O4
4.3.3 Contact angle
4.3.4 Formation mechanism
4.3.5 Applications of Janus microspheres as a demulsifiers
4.3.5.1 Demulsification efficiency of Janus microspheres
4.3.5.2 Effect of Janus microspheres on the kinematic viscosity of emulsion
4.3.5.3 Effect of Janus microspheres on oil/water interfacial film breaking
4.3.5.4 Effect of temperature on the demulsification
4.3.5.5 Effect of time on the demulsification
4.3.5.6 Comparison of Janus microspheres with commercial demulsifiers
4.3.5.7 Recycling
4.3.5.8 Application mechanism
4.4 Conclusion
3 O4 magnetic composite microspheres">Chapter 5: Fabrication, structure tailoring and demulsification properties of raspberry like P（MMA-AA-DVB）/Fe3O4 magnetic composite microspheres
5.1 Introduction
5.2 Experimental
5.2.1 Materials
5.2.2 Synthesis of magnetic composite microspheres
5.2.3 Emulsion preparation
5.2.4 Demulsification
5.2.5 Recycle test
5.2.6 Surface and interfacial tension of the emulsion
5.2.7 Characterization
5.3 Results and discussion
5.3.1 Morphology of P（MMA-AA-DVB） microspheres
5.3.2 Morphology and components of the magnetic composite microspheres
3O4"> 5.3.3 Magnetic properties of raspberry like P（MMA-AA-DVB）/Fe3O4
5.3.4 Contact angle
5.3.5 Interfacial properties of raspberry like microspheres
5.3.6 Demulsification studies
5.3.7 Effect of water phase content on demulsification
5.3.8 The effect of the as-prepared microspheres on the kinematic viscosity
5.3.9 Effect of the microspheres on oil/water interfacial film breaking
5.3.10 Recycling test
5.3.11 Formation and application mechanism
5.4 Conclusion
Chapter 6: Conclusion
6.1 Main conclusion
6.2 Novelties
6.3 Future research work
References
Acknowledgement
Published research papers
【参考文献】：
期刊论文
[1]Key synthesis of magnetic Janus nanoparticles using a modified facile method[J]. Nisar Ali,Baoliang Zhang,Hepeng Zhang,Wajed Zaman,Wei Li,Qiuyu Zhang. Particuology. 2014(06)
[2]Synthesis and characterization of magnetic polymer microspheres with a core-shell structure[J]. Ming Lu, Shu Bai, Kun Yang, Yan Sun Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China. China Particuology. 2007(Z1)
本文编号：2955141
【文章来源】：西北工业大学陕西省 211工程院校 985工程院校
【文章页数】：156 页
【学位级别】：博士
【文章目录】：
摘要
Abstract
Chapter 1: Literature review
1.1 Background
1.2 Emulsion Systems
1.2.1 Formation of water in oil emulsion
1.2.2 Stability of water in oil emulsion
1.3 Emulsion destabilization methods
1.3.1 Chemical demulsification
1.3.2 Thermal demulsification methods
1.3.3 Electrical demulsification method
1.3.4 Microfiltration demulsification method
1.3.4.1 Microfiltration
1.3.4.2 Ultrafiltration
1.3.4.3 Hyperfiltration /reverse osmosis
1.3.4.4 Mechanism of microfiltration
1.4 Magnetic composite microspheres as demulsifier
1.4.1 Magnetite
1.4.2 Magnetic composite microspheres
1.5 Problem statement
1.6 Aims and objectives
3O4@P（GMA-MMA-DVB） magnetic composite core-shell microspheres">Chapter 2: Fabrication, characterization and demulsification properties of amino modified Fe3O4@P（GMA-MMA-DVB） magnetic composite core-shell microspheres
2.1 Introduction
2.2 Experimental
2.2.1 Materials
3O4 nanoparticles"> 2.2.2 Preparation of Fe3O4 nanoparticles
3O4@P（GMA-MMA-DVB） magnetic composite microspheres"> 2.2.3 Synthesis of Fe3O4@P（GMA-MMA-DVB） magnetic composite microspheres
3O4@P（GMA-MMA-DVB）"> 2.2.4 Surface modification of Fe3O4@P（GMA-MMA-DVB）
2.2.5 Recycle test
2.2.6 Surface and interfacial tension of emulsion
2.2.7 Characterization
2.3 Results and discussion
2.3.1 Morphology of magnetic composite core shell microspheres
3O4@P（GMA-MMA-DVB）"> 2.3.2 Surface modification of Fe3O4@P（GMA-MMA-DVB）
2.3.3 Crystal structure of the synthesized magnetic materials
2.3.4 Magnetic properties of the magnetic composite core-shell microspheres
2.3.5 Interfacial properties of the magnetic composite core-shell microspheres
2.3.6 Demulsification study of the magnetic composite core-shell microspheres
2.3.7 Recycling
2.3.8 Formation and application mechanism
2.4 Conclusion
3O4@P（MMA-AA-DVB） magnetic composite core-shell microspheres">Chapter 3: Preparation, characterization and demulsification properties of Fe3O4@P（MMA-AA-DVB） magnetic composite core-shell microspheres
3.1 Introduction
3.2 Experimental
3.2.1 Materials
3O4 microspheres"> 3.2.2 Preparation and surface modification of Fe3O4 microspheres
3.2.3 Synthesis and assembly of the magnetic composite core-shell microspheres
3.2.4 Emulsion preparation
3.2.5 Demulsification
3.2.6 Recycle test
3.2.7 Surface and interfacial tension of the emulsion
3.2.8 Characterization
3.3 Results and discussion
3.3.1 Morphology and components of magnetic core-shell microspheres
3.3.2 Magnetic properties of the magnetic core-shell microspheres°
3.3.3 Interfacial properties of the magnetic composite core-shell microspheres
3.3.4 Demulsification study
3.3.5 Recycling
3.3.6 Formation and application mechanism
3.4 Conclusion
3O4 Janus magnetic composite microspheres">Chapter 4: Fabrication, structure tailoring and demulsification properties of P（MMA-AA-DVB）/Fe3O4 Janus magnetic composite microspheres
4.1 Introduction
4.2 Experimental
4.2.1 Materials
4.2.2 Synthesis of P（MMA-AA-DVB） microspheres
3O4 Janus magnetic microspheres"> 4.2.3 Synthesis of P （MMA-AA-DVB）/Fe3O4 Janus magnetic microspheres
4.2.4 Emulsion preparation
4.2.5 Demulsification
4.2.6 Recycle test
4.2.7 Surface and interfacial tension of the emulsion
4.2.8 Characterization
4.3 Results and discussion
4.3.1 Morphology and components of the microspheres
3O4"> 4.3.2 Magnetic properties of Janus like P（MMA-AA-DVB）/Fe3O4
4.3.4 Formation mechanism
4.3.5 Applications of Janus microspheres as a demulsifiers
4.3.5.1 Demulsification efficiency of Janus microspheres
4.3.5.2 Effect of Janus microspheres on the kinematic viscosity of emulsion
4.3.5.3 Effect of Janus microspheres on oil/water interfacial film breaking
4.3.5.4 Effect of temperature on the demulsification
4.3.5.5 Effect of time on the demulsification
4.3.5.6 Comparison of Janus microspheres with commercial demulsifiers
4.3.5.7 Recycling
4.3.5.8 Application mechanism
4.4 Conclusion
3
5.1 Introduction
5.2 Experimental
5.2.1 Materials
5.2.2 Synthesis of magnetic composite microspheres
5.2.3 Emulsion preparation
5.2.4 Demulsification
5.2.5 Recycle test
5.2.6 Surface and interfacial tension of the emulsion
5.2.7 Characterization
5.3 Results and discussion
5.3.1 Morphology of P（MMA-AA-DVB） microspheres
5.3.2 Morphology and components of the magnetic composite microspheres
3O4"> 5.3.3 Magnetic properties of raspberry like P（MMA-AA-DVB）/Fe3O4
5.3.5 Interfacial properties of raspberry like microspheres
5.3.6 Demulsification studies
5.3.7 Effect of water phase content on demulsification
5.3.8 The effect of the as-prepared microspheres on the kinematic viscosity
5.3.9 Effect of the microspheres on oil/water interfacial film breaking
5.3.10 Recycling test
5.3.11 Formation and application mechanism
5.4 Conclusion
Chapter 6: Conclusion
6.1 Main conclusion
6.2 Novelties
6.3 Future research work
References
Acknowledgement
Published research papers
【参考文献】：
期刊论文
[1]Key synthesis of magnetic Janus nanoparticles using a modified facile method[J]. Nisar Ali,Baoliang Zhang,Hepeng Zhang,Wajed Zaman,Wei Li,Qiuyu Zhang. Particuology. 2014(06)
[2]Synthesis and characterization of magnetic polymer microspheres with a core-shell structure[J]. Ming Lu, Shu Bai, Kun Yang, Yan Sun Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China. China Particuology. 2007(Z1)
本文编号：2955141
本文链接：https://www.wllwen.com/projectlw/hxgylw/2955141.html
最近更新
教材专著
