Oil recovery from oily sludge using amidinium bicarbonate‐based <scp>CO<sub>2</sub></scp>‐responsive microemulsion
Abstract In the petroleum and petrochemical industries, oil sludge is a common contaminant that causes environmental pollution and resource wastage. Currently, recovering crude oil from oily sludge presents a significant challenge during processing. In this study, an amidinium bicarbonate‐based CO 2 ‐responsive microemulsion was developed to effectively treat sludge and recover crude oil. The microemulsion system demonstrates a strong capability for oil solubilization. After the microemulsion treatment, the residual oil contents in the sludge can be reduced to as low as 2.93% (ME‐1, n‐butanol as cosurfactant) and 1.44% (ME‐2, n‐hexanol as cosurfactant). Complete oil/water phase separation can be achieved by introducing N 2 at 65°C.
Authors
- Sihang Ma (ORCID: https://orcid.org/0000-0002-4170-8780)
- Zhuoyan Zhu
- Zhidong Chang (ORCID: https://orcid.org/0000-0001-8734-3054)
- Qingfeng Hou (ORCID: https://orcid.org/0000-0002-3822-5542)
- Yuanyuan Wang (ORCID: https://orcid.org/0000-0003-3963-0192)
- Xiaoling Yi
- Yifeng Liu (ORCID: https://orcid.org/0009-0009-0097-9873)
Institutions
- Research Institute of Petroleum Exploration and Development (CN)
- University of Science and Technology Beijing (CN)
- China National Petroleum Corporation (China) (CN)
Publication Details
- Journal
- Journal of Surfactants and Detergents
- Published
- 2025-03-01
- DOI
- https://doi.org/10.1002/jsde.12848
- Citations
- 1
- Primary Topic
- Petroleum Processing and Analysis
- Type
- article
- Field-Weighted Citation Impact
- 0.75
Funders
- National Natural Science Foundation of China