亲爱的研友该休息了!由于当前在线用户较少,发布求助请尽量完整地填写文献信息,科研通机器人24小时在线,伴您度过漫漫科研夜!身体可是革命的本钱,早点休息,好梦!

Rheo-optic in situ synchronous study on the gelation behaviour and mechanism of waxy crude oil emulsions

微观结构 乳状液 油滴 材料科学 光学显微镜 化学 化学工程 化学物理 复合材料 工程类 扫描电子显微镜
作者
Jian Zhao,Xiaofeng Li,Hang Dong,Zhihua Wang
出处
期刊:Petroleum Science [Elsevier BV]
卷期号:20 (2): 1266-1288 被引量:8
标识
DOI:10.1016/j.petsci.2022.08.033
摘要

An improved rheo-optic in situ synchronous measurement system was employed to investigate the gelation behaviour and mechanism of waxy crude oil emulsions. By combining transmitted natural light and reflected polarized light microscopy, a multiangle composite light source was built to achieve the simultaneous observation of wax crystals and emulsified water droplets, as well as their dynamic aggregation process. Main outcomes on the microscopic mechanism were obtained by developed microscopic image processing method. It was found that the microstructure of W/O waxy crude oil emulsion has the evolution of “individual structure--homogeneous aggregate structure--heterogeneous coaggregate structure--floc structure” during the static cooling, which results in the four stages during gelation process. Different from previous studies, the aggregation of emulsified water droplets was found to be more significant and contributes to the formation and development of the wax crystals-emulsified water droplets coaggregate, which plays a decisive role in the further evolution of the gelled microstructure. Time series microscopic images show the dynamic aggregation of emulsified water droplets and wax crystals. Two different aggregation behaviours between wax crystals and water droplets were observed. That wax crystals can not only embed in gaps between adjacent water droplets and enhance the structure, but also surround the outside of the water droplets and continue to grow resulting in the interconnection of different coaggregates to form a larger floc structure. In addition, correlation between viscoelasticity and microstructure evolution of waxy crude oil emulsions of different water contents was discussed. With increasing water contents, the microstructure is changed from wax crystal flocculation structure as the main skeleton and the emulsified water droplets embedded in it, into the aggregation of emulsified water droplets occupying the main position. When the number of wax crystals and water droplets reaches a certain ratio, did wax crystals form coaggregates with emulsified water droplets, and the remaining wax crystals formed an overall flocculation structure, the viscoelasticity of the waxy crude oil emulsion is the highest.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
jiangjiang完成签到 ,获得积分10
21秒前
吱吱草莓派完成签到 ,获得积分10
26秒前
54秒前
小二郎应助科研通管家采纳,获得10
54秒前
59秒前
1分钟前
宝贝丫头完成签到 ,获得积分10
1分钟前
英姑应助背后的鞋垫采纳,获得10
1分钟前
桐桐应助Benhnhk21采纳,获得10
1分钟前
Dave发布了新的文献求助10
2分钟前
科研通AI2S应助科研通管家采纳,获得10
2分钟前
Aaron完成签到 ,获得积分0
3分钟前
3分钟前
5分钟前
Liufgui应助Dave采纳,获得10
5分钟前
Benhnhk21发布了新的文献求助10
5分钟前
yydragen应助yyds采纳,获得10
5分钟前
Hisam完成签到,获得积分10
5分钟前
lhy完成签到,获得积分10
6分钟前
lhy发布了新的文献求助10
6分钟前
6分钟前
积极的台灯应助Benhnhk21采纳,获得10
6分钟前
Hisam发布了新的文献求助10
6分钟前
yyds完成签到,获得积分0
6分钟前
科研通AI2S应助科研通管家采纳,获得10
6分钟前
木木完成签到 ,获得积分10
6分钟前
7分钟前
董可以发布了新的文献求助10
7分钟前
小马甲应助董可以采纳,获得10
7分钟前
7分钟前
Boren发布了新的文献求助10
7分钟前
梨子完成签到,获得积分10
7分钟前
Boren完成签到,获得积分10
7分钟前
WerWu完成签到,获得积分10
9分钟前
彭于晏应助Dc采纳,获得10
9分钟前
10分钟前
情怀应助科研通管家采纳,获得10
10分钟前
11分钟前
Dc发布了新的文献求助10
11分钟前
Dc完成签到,获得积分10
11分钟前
高分求助中
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3990290
求助须知:如何正确求助?哪些是违规求助? 3532146
关于积分的说明 11256472
捐赠科研通 3271042
什么是DOI,文献DOI怎么找? 1805197
邀请新用户注册赠送积分活动 882302
科研通“疑难数据库(出版商)”最低求助积分说明 809234