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Recent Innovations in Chemical Engineering

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ISSN (Print): 2405-5204
ISSN (Online): 2405-5212

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Mini-Review Article

Research Progress on Improving the Stability of Paraffin Emulsion: A Mini-Review

Author(s): Yu Liang*, Endong Xia, Haiyan Li, Zidong Wang and Shoutao Ma

Volume 15, Issue 3, 2022

Published on: 26 September, 2022

Page: [150 - 158] Pages: 9

DOI: 10.2174/2405520415666220823164325

Price: $65

Abstract

Paraffin emulsion is a highly dispersed, thermodynamically unstable system. Emulsifiers play a key role in promoting emulsion formation and improving emulsion stability. However, a single emulsifier has limitations in maintaining emulsion stability, usually, it is necessary to compound more than two emulsifiers or add other additives to make the paraffin emulsion have better stability. Therefore, how to keep paraffin emulsion high dispersibility and stability for a long time are the problems that the majority of researchers have been concerned about. This paper expounded the instability mechanism of paraffin wax emulsion. The process of paraffin emulsion destabilization is the process of gradually reducing the free energy of the system and the interaction force between emulsion droplets determines the speed of emulsion destabilization. Sedimentation and stratification, flocculation, coalescence, and Ostwald Ripening were the main factors leading to paraffin instability; the prevention and improvement methods are proposed for the above four mechanisms. From the instability mechanism, the factors affecting the stability of paraffin emulsion mainly include the mechanical strength and film elasticity of the interface film, the interfacial charge or obstruction between the emulsion droplets, the appropriate system viscosity, and the uniform droplet size distribution will affect the stability of the paraffin emulsion. Through literature research, several methods to improve the stability of paraffin emulsion were summarized. Polar paraffin has good emulsifying properties, compounding with paraffin can not only reduce the amount of emulsifier but also enhance the stability of paraffin emulsion, adding thickeners can reduce the Brownian motion of droplets and improve the chemical and mechanical stability of wax emulsions, the addition of ionic surfactants can reduce the diffusion rate of the dispersed phase, the addition of inorganic salts can make the emulsion droplets generate strong repulsion when they are close to each other, and improve the stability of the emulsion, the addition of small molecular alcohols can improve the flexibility of the oil-water interface film properties, reduce the surface tension coefficient of the emulsion, and increase the stability of the paraffin emulsion. This paper can provide a theoretical reference for the research on the stability of paraffin emulsion.

Keywords: Paraffin, paraffin emulsion, emulsification stability mechanism, interface film, emulsion destabilization, Brownian motion

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[1]
Li YJ, Li CX, Sun GY, et al. Characterization of the precipitation modes of paraffin wax in water-in-model-Oil emulsions. Energy Fuels 2020; 34(12): 16014-22.
[http://dx.doi.org/10.1021/acs.energyfuels.0c02902]
[2]
Gohtan S, Praser W. Nano-emulsions; emulsification using low energy methods. J Food Eng 2014; 15(3): 119-30.
[http://dx.doi.org/10.11301/jsfe.15.119]
[3]
Cheng ZF, Shi JY, Hou QF. Preparation of a high solid content paraffin nanoemulsion. Petrochem Technol 2021; 50(2): 150-6.
[4]
Costa C, Mira I, Benjamins JW, et al. Interfacial activity and emulsion stabilization of dissolved cellulose. J Mol Liq 2019; 292: 1-7.
[http://dx.doi.org/10.1016/j.molliq.2019.111325]
[5]
Mcclements DJ. Improving emulsion formation stability and performance using mixed emulsifiers: A review. Adv Colloid Interface Sci 2017; 251: 55-79.
[http://dx.doi.org/10.1016/j.cis.2017.12.001]
[6]
Chen H, Nofen EM, Rykaczewski K, Dai LL. Colloidal lattices of environmentally responsive microgel particles at ionic liquid–water interfaces. J Colloid Interface Sci 2017; 504: 440-7.
[http://dx.doi.org/10.1016/j.jcis.2017.04.083] [PMID: 28599243]
[7]
Hu D, Zhang Q, Yang CF, et al. Process diagnosis of coalescence separation of oil-in-water emulsions-two case studies. J Dispers Sci Technol 2019; 40(5): 745-55.
[http://dx.doi.org/10.1080/01932691.2018.1480384]
[8]
Asua JM. Ostwald ripening of reactive costabilizers in miniemulsion polymerization. Eur Polym J 2018; 106: 30-41.
[http://dx.doi.org/10.1016/j.eurpolymj.2018.07.001]
[9]
Zwicker D, Hyman AA, Jülicher F. Suppression of ostwald ripening in active emulsions. Phys Rev E 2015; 92(1): 12317.
[http://dx.doi.org/10.1103/PhysRevE.92.012317]
[10]
Sintov AC, Greenberg I. Comparative percutaneous permeation study using caffeine-loaded microemulsion showing low reliability of the frozen/thawed skin models. Int J Pharmaceut 2014; 471(1/2): 516-24.
[http://dx.doi.org/10.1016/j.ijpharm.2014.05.040]
[11]
Bureiko A, Trybala A, Kovalchuk N, et al. Current applications of foams formed from mixed surfactant-polymer solutions. Adv Colloid Interface Sci 2015; 222: 670-7.
[http://dx.doi.org/10.1016/j.cis.2014.10.001]
[12]
Ji SX, Walz JY. Depletion forces and flocculation with surfactants, polymers and particles-synergistic effects. Curr Opin Colloid Interface Sci 2015; 20(1): 39-45.
[http://dx.doi.org/10.1016/j.cocis.2014.11.006]
[13]
Barison S, Cabaleiro D, Rossi S, et al. Paraffin-graphene oxide hybrid nanoemulsions for thermal management systems. Colloids Surf A Physicochem Eng Asp 2021; 627: 1-8.
[http://dx.doi.org/10.1016/j.colsurfa.2021.127132]
[14]
Wang JY, Liu DM. Preparation of new type emulsified wax. Appl Chem Ind 2009; 38(2): 309-12.
[http://dx.doi.org/10.16581/j.cnki.issn1671-3206.2009.02.025]
[15]
Peng HL, Zhao H. The emulsification of oxidized wax with a Co/SBA-15 catalyst. Petrol Sci Technol 2013; 31(18): 1916-24.
[http://dx.doi.org/10.1080/10916466.2010.542427]
[16]
Jahandideh H, Pejman GA, Bryant SL, et al. The significance of graphene oxide-polyacrylamide interactions on the stability and microstructure of oil-in-water emulsions. Langmuir 2018; 34(43): 12870-81.
[http://dx.doi.org/10.1021/acs.langmuir.8b02288]
[17]
Chen WY, Gong ZJ, Duan NN. Preparation a new multi-purpose emulsion wax. J Petrochem Univ 2010; 23(3): 48-51.
[18]
Wang Y, Luo SQ, Zhu LJ. Influencing factors and stability of oil-in-water nanoemulsion. Appl Chem Ind 2019; 48(8): 1825-66.
[http://dx.doi.org/10.16581/j.cnki.issn1671-3206.2019.08.003]
[19]
Bao JP, Li FY, Zhao TB. Research on the emulsifier to prepare the high-solid content wax emulsion. Appl Chem Ind 2009; 38(7): 1025-30.
[http://dx.doi.org/10.16581/j.cnki.issn1671-3206.2009.07.025]
[20]
Dong SL, Xu GY. Study on interaction between sodium dodecyl sulfate and polyvinylpyrrolidone by dynamic light scattering and electron spin resonance. Acta Chimi Sin 2004; 62(4): 674-9.
[21]
Li FY, Bao JP, Zhao TB. The effect of the stabilizing agent on the stability of high solid content wax emulsion. Appl Chem Ind 2009; 38(9): 1289-93.
[http://dx.doi.org/10.16581/j.cnki.issn1671-3206.2009.09.022]
[22]
Wantling S. Wax emulsion preservative compositions and method of manufacture. US, 2007; p. 7294189.
[23]
Koroleva MY, Gorbachevski OS, Yurtov EV. Paraffin wax emulsions stabilized with polymers, surfactants, and nanoparticles. Theor Found Chem 2017; 51(1): 125-32.
[http://dx.doi.org/10.1134/S0040579516060087]
[24]
Fan Q, Li XF, Dong JF. Droplets size distribution and stability in O/W emulsions of anionic/nonionic binary surfactant systems. Wuhan Univ J Nat Sci 2016; 62(1): 31-5.
[http://dx.doi.org/10.14188/j.1671-8836.2016.01.005]
[25]
Zeng LY, Zhang YL. Impact of short-chain alcohols on the formation and stability of nano-emulsions prepared by the spontaneous emulsification method. Colloids Surf A Physicochem Eng Asp 2016; 509: 591-600.
[http://dx.doi.org/10.1016/j.colsurfa.2016.09.001]
[26]
Li FY, Dai DH, Zhao TB. Preparation of paraffin wax microemulsion with nonionic and anionic surfactants. J Petrochem Univ 2012; 25(2): 12-5.
[27]
Kini GC, Biswal SL, Wong MS, et al. Characteristics of spontaneously formed nanoemulsions in octane/AOT/brine systems. J Colloid Interface Sci 2012; 385(1): 111-21.
[http://dx.doi.org/10.1016/j.jcis.2012.07.041]
[28]
Astaraki AM, Shirvani F. The effect of NaCl concentration on the phase inversion temperature and droplet sizes of liquid paraffin nanoemulsions. Russ J Appl Chem 2020; 93(6): 916-9.
[http://dx.doi.org/10.1134/S1070427220060191]
[29]
Pey CM, Maestro A, Solé I, et al. Optimization of nano-emulsions prepared by low-energy emulsification methods at constant temperature using a factorial design study. Colloids Surf A Physicochem Eng Asp 2006; 288: 144-50.
[http://dx.doi.org/10.1016/j.colsurfa.2006.02.026]
[30]
Roger K, Cabane B. Uncontaminated hydrophobic/water interfaces are uncharged: A Reply. Angewandte Chemie Int 2012; 51: 12943-5.
[http://dx.doi.org/10.1002/anie.201207114]
[31]
Jiang JZ, Yan ZY. Preparation of high wax content emulsion. Chem Indus Eng Progress 2008; 27(10): 1632-6.
[32]
Orres LG, Iturbe R, Snowden MJ, et al. Preparation of o/w emulsions stabilized by solid particles and their characterization by oscillatoryrheology. Colloids Surf A Physicochem Eng Asp 2007; 302: 439-48.
[http://dx.doi.org/10.1016/j.colsurfa.2007.03.009]
[33]
Velmurugan N, Patel P, Chon BH, et al. Use of Oil-in-water pickering emulsion stabilized by nanoparticles in combination with polymer flood for enhanced oil recovery. Petrol Sci Technol 2015; 33: 1595-604.
[http://dx.doi.org/10.1080/10916466.2015.1079534]
[34]
Sharma T, Kumar GS, Chon BH, et al. Thermal stability of oil-in-water Pickering emulsion in the presence of nanoparticle, surfactant, and polymer. J Ind Eng Chem 2015; 22: 324-34.
[http://dx.doi.org/10.1016/j.jiec.2014.07.026]
[35]
Srivastava A, Qiao W, Wu Y, Li X, Bao L, Liu C. Effects of silica nanoparticles and polymers on foam stability with sodium dodecylbenzene sulfonate in water–liquid paraffin oil emulsions at high temperatures. J Mol Liq 2017; 241(000): 1069-78.
[http://dx.doi.org/10.1016/j.molliq.2017.06.096]

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