Influence of Crude Oil Components on Interfacial Dilational Properties of Hydrophobically Modified Polyacrylamide

2015 ◽  
Vol 29 (3) ◽  
pp. 1564-1573 ◽  
Author(s):  
Song-Shuang Hu ◽  
Lei Zhang ◽  
Xu-Long Cao ◽  
Lan-Lei Guo ◽  
Yang-Wen Zhu ◽  
...  



2018 ◽  
Vol 296 (3) ◽  
pp. 515-527 ◽  
Author(s):  
Yao Lu ◽  
Hairong Wu ◽  
Ziyu Meng ◽  
Jiatong Jiang ◽  
Yi Jin ◽  
...  


Fuel ◽  
2019 ◽  
Vol 256 ◽  
pp. 116007 ◽  
Author(s):  
Yao Lu ◽  
Hairong Wu ◽  
Ziyu Meng ◽  
Kai Gao ◽  
Jirui Hou ◽  
...  


2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Wenjie Zou ◽  
Zichuan Fang ◽  
Zhijun Zhang ◽  
Zhenzhen Lu

The adsorption of polymers affects the cost and oil recovery in oil reservoir exploitation and the flocculation effect in the treatment of oil sand tailings. The adhesion and adsorption of a hydrophobically modified polyacrylamide (HMPAM), i.e., P(AM-NaAA-C16DMAAC), on silica and asphaltene were investigated using surface force measurements, thermodynamic analysis and quartz crystal microbalance with dissipation (QCM-D) measurement. Our study indicates that HMPAM polymer has strong interaction with both silica and asphaltene. The adhesion force of HMPAM on silica was stronger than that on asphaltene surface. Consistently, the adsorption of HMPAM was also greater on silica surface, with a more rigid layer formed on the surface. For HMPAM/silica system, the attractive interaction and the strong adhesion are mainly driven by the hydrogen bonding and electrostatic interaction. For HMPAM/asphaltene system, it is mainly due to hydrophobic interaction between the long hydrocarbon chains of HMPAM and asphaltene. Furthermore, continuous adsorption of HMPAM was detected and multiple layers formed on both silica and asphaltene surfaces, which can be attributed to the hydrophobic chains of HMPAM polymers. This work has illustrated the interaction mechanism of HMPAM polymer on hydrophilic silica and hydrophobic asphaltene surfaces, which provide insight into the industrial applications of hydrophobically modified polymer.



RSC Advances ◽  
2017 ◽  
Vol 7 (46) ◽  
pp. 28733-28745 ◽  
Author(s):  
Yuhao Zhou ◽  
Huaili Zheng ◽  
Baoyu Gao ◽  
Yingpeng Gu ◽  
Xiang Li ◽  
...  

Chemical conditioning, as one of the core technologies used for the dewatering pretreatment of sludge, can efficiently improve the dewaterability of WAS and hence reduce the expense of the transportation and disposal of WAS.



2015 ◽  
Vol 36 (9) ◽  
pp. 845-851 ◽  
Author(s):  
Akram Yasin ◽  
Wanfu Zhou ◽  
Haiyang Yang ◽  
Huazhen Li ◽  
Yin Chen ◽  
...  




RSC Advances ◽  
2016 ◽  
Vol 6 (7) ◽  
pp. 5695-5702 ◽  
Author(s):  
Heng Su ◽  
Xiang Wang ◽  
Miao Du ◽  
Yihu Song ◽  
Qiang Zheng

Intermolecular association rather than the robust adsorption layer plays a significant role in boundary lubrication.



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