Probing the interactions between asphaltenes and a PEO-PPO demulsifier at oil–water interface: Effect of temperature
Dynamic interfacial tension and QCM-D results demonstrate that the PEO-PPO type EB exhibits higher interfacial activity than asphaltenes and can disrupt rigid asphaltene films at the oil-water interfaces. Elevated temperatures accelerate the displacement of adsorbed asphaltenes by EB molecules, leading to sparse interfacial films, rapid droplet coalescence, and improved demulsification efficiency (supported by AFM and bottle test results). This work provides valuable insights into interfacial interactions between asphaltenes and EB at different temperatures, enhancing the understanding of demulsification mechanisms and offering useful implications for the development of efficient EBs to enhance oil/water separation performance.
Authors
- Hao Zhang (ORCID: https://orcid.org/0000-0003-4080-3222)
- Chenyu Qiao (ORCID: https://orcid.org/0000-0003-4521-9260)
- Xiaohui Mao (ORCID: https://orcid.org/0000-0001-5664-4567)
- Diling Yang (ORCID: https://orcid.org/0000-0002-6818-9570)
- Hongbo Zeng (ORCID: https://orcid.org/0000-0002-1432-5979)
- Yueying Huang
- Jingyi Wang (ORCID: https://orcid.org/0000-0002-8583-237X)
- Ling Zhang (ORCID: https://orcid.org/0000-0003-1124-3545)
Institutions
- University of Alberta (CA)
- Southwest Petroleum University (CN)
- Donghua University (CN)
Publication Details
- Journal
- Journal of Colloid and Interface Science
- Published
- 2024-09-13
- DOI
- https://doi.org/10.1016/j.jcis.2024.09.101
- Citations
- 5
- Primary Topic
- Petroleum Processing and Analysis
- Type
- article
- Field-Weighted Citation Impact
- 1.18
Funders
- Canada Research Chairs
- Canada Foundation for Innovation
- Canada First Research Excellence Fund
- Natural Sciences and Engineering Research Council of Canada