Demulsification law of polyether demulsifier for W/O crude oil emulsion containing hydrophobically modified polyacrylamide in water

破乳剂 乳状液 化学 表面张力 聚结(物理) 聚丙烯酰胺 化学工程 单体 肺表面活性物质 疏水效应 聚合物 高分子化学 有机化学 热力学 物理 工程类 天体生物学 生物化学
作者
Jian Zhang,Xiujun Wang,Qiang Liang,Ming Duan,Ming Duan,Chunsheng Zhang,Jiaqing Chen
出处
期刊:Journal of Molecular Liquids [Elsevier BV]
卷期号:394: 123805-123805
标识
DOI:10.1016/j.molliq.2023.123805
摘要

Hydrophobically modified polyacrylamide (HMPAM) is one of the commonly used polymers for polymer flooding. Because it is water soluble, there are many reports on the impact of HMPAM on the stability and treatment of produced water (it is O/W emulsion), but few reports on its influence on the demulsification of W/O crude oil emulsion. In this paper, firstly, three types of HMPAM containing cationic, anionic, and nonionic hydrophobic monomers (abbreviated as P(AM-AANa-N)Cn, P(AM-AANA-S)Cn, and P(AM-AANA-O)Cn, respectively) were synthesized; Then, demulsification experiments and interface behavior experiments (including dynamic interfacial tension, dilatational rheology and dynamic coalescence time measurement) were conducted to investigate the influence of HMPAM on the demulsification performance of a W/O heavy oil emulsion demulsifier D1. The demulsification results showed that HMPAM reduced the dehydration speed of D1, the type of hydrophobic monomer and the length of hydrophobic chain in HMPAM can affect the final water separated of D1. P(AM-AANa-S)Cn, P(AM-AANa-N)Cn with long hydrophobic chain, and P(AM-AANa-O)Cn with short hydrophobic chains had the negative effect on performance of D1. The results of dynamic interfacial tension experiments indirectly showed that HMPAM had the influence on the D1′s conformation and speed of rearrangement at the W/O interface during the water droplet coalescence process, thereby affecting the reduction of elastic modulus (G′) of W/O interface and the coalescence rate of water droplets. When there was HMPAM in water, the coalescence time of water droplets increased, resulting in the decrease of dehydration rate. At the meantime, HMPAM had an impact on the lg(G1′/Gdemulsifier′)/lgG1′, thereby affecting the final water separated of D1.
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
量子星尘发布了新的文献求助10
刚刚
nightmare发布了新的文献求助10
1秒前
Lili发布了新的文献求助10
2秒前
kingwill应助南韵采纳,获得20
3秒前
5秒前
Poik完成签到,获得积分10
5秒前
刘娅铷发布了新的文献求助10
5秒前
7秒前
小小吴完成签到,获得积分10
8秒前
不孤独的发卡完成签到,获得积分20
9秒前
潘善若发布了新的文献求助30
12秒前
zzzjh完成签到,获得积分10
12秒前
香蕉觅云应助超级采纳,获得10
14秒前
14秒前
安然完成签到 ,获得积分10
19秒前
桔子完成签到,获得积分10
19秒前
19秒前
落后的哈密瓜完成签到,获得积分10
20秒前
潘善若发布了新的文献求助10
21秒前
Rainbow完成签到 ,获得积分10
22秒前
24秒前
SciGPT应助momo采纳,获得10
24秒前
24秒前
Lili完成签到,获得积分10
25秒前
25秒前
26秒前
congyjs完成签到,获得积分20
28秒前
超级发布了新的文献求助10
29秒前
29秒前
潘善若发布了新的文献求助10
30秒前
Rondab应助胡图图采纳,获得10
30秒前
30秒前
32秒前
nilu完成签到,获得积分10
32秒前
congyjs发布了新的文献求助10
33秒前
34秒前
CodeCraft应助落后的哈密瓜采纳,获得10
34秒前
34秒前
王汉韬发布了新的文献求助10
35秒前
Nature_Science完成签到,获得积分10
35秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
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 3989297
求助须知:如何正确求助?哪些是违规求助? 3531418
关于积分的说明 11253893
捐赠科研通 3270097
什么是DOI,文献DOI怎么找? 1804884
邀请新用户注册赠送积分活动 882087
科研通“疑难数据库(出版商)”最低求助积分说明 809158