文献类型：期刊文献

英文题名：Achieving optimal micro-explosions in stable emulsions by adding water-soluble polymers

作者：Liu, Cao[1];Cui, Lingrui[1,2];Xu, Jun[1,2];Cen, Lian[1];Xu, Jinshan[3];Li, Peixun[4];Xiao, Tiancun[5];Cao, Fahai[1,2]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Engn Res Ctr Large Scale Reactor, Shanghai 200237, Peoples R China;[3]Sinopec Qilu Co, Zibo 255400, Peoples R China;[4]Rutherford Appleton Lab, ISIS Facil, STFC, Didcot OX11 0QX, Oxon, England;[5]Univ Oxford, Dept Chem, Inorgan Chem Lab, Oxford OX1 3QR, England

年份：2023

卷号：281

外文期刊名：CHEMICAL ENGINEERING SCIENCE

收录：;EI(收录号：20233214511010);WOS:【SCI-EXPANDED(收录号:WOS:001055030600001)】；

基金：The authors thank the Sinopec Innovation Foundation for funding this project under grant number 120022. The authors thank the Research Center of Analysis and Test of East China University of Science and Technology for the characterization of TEM and Sinopec Qilu Company for providing technological support.

语种：英文

外文关键词：Emulsion; Micro -explosion; Polymer additives; Viscosity; Liquid-gas interfacial tension

摘要：The emulsified feedstock technique is to improve the performance of products by using the micro-explosion phenomenon of emulsion. However, an obstacle to some applications of this technology is the contradiction between emulsion stability and micro-explosion intensity. For the first time, adding water-soluble polymers was proposed to solve this problem. Two polymers of xanthan gum (XG) and nonionic polyacrylamide (NPAM) were investigated and the results show that micro-explosions have five forms. As one of these five forms, the intensity of optimal micro-explosion is three orders of magnitude higher than other forms, and adding 0.5 g/dL XG increases the probability of optimal micro-explosion from 0 to 60% due to the low surface activity, strong thickening and pseudoplasticity of XG solutions. By contrast, NPAM does not promote micro-explosion because of its strong surface activity. Finally, a new mechanism for micro-explosions related to liquid-gas interfacial tension, liquid-liquid interfacial tension and viscosity is proposed.