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Updated: May 30, 2025
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A Solar-Heated Phase Change Composite Fiber with a Core-Shell Structure for the Recovery of Highly Viscous Crude Oil
Chenxin Lin1, Yifan Wang1, Cenyu Liu1
1Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China.
Polymers
|January 25, 2025
Summary
A novel composite fiber, PF@PAN@PEG, effectively recovers viscous crude oil by converting solar energy and storing heat. This material enhances oil collection efficiency, even with variable sunlight, offering a sustainable solution for oil spill pollution.
Area of Science:
- Materials Science
- Environmental Science
- Chemical Engineering
Background:
- Viscous crude oil spills pose significant environmental challenges due to low fluidity.
- Current solar thermal absorbers for oil recovery are limited by fluctuating solar radiation.
Purpose of the Study:
- To develop a composite fiber with solar energy conversion, storage, and crude oil removal capabilities.
- To address the limitations of solar absorbers in variable environmental conditions.
Main Methods:
- Coaxial electrospinning was used to create PF@PAN@PEG composite fibers.
- Fibers were surface-coated for oleophilicity and hydrophobicity, with PEG encapsulated within PAN fibers.
Main Results:
- PF@PAN@PEG demonstrated high latent heat (77.12 J/g), porosity, photothermal conversion, and oil storage (11.65 g/g).
- The material continuously maintained oil at phase change temperature, reducing viscosity without PEG leakage.
- Crude oil collection efficiency improved by 21.99% under variable solar intensity.
Conclusions:
- The developed PF@PAN@PEG composite fiber offers a promising approach for viscous crude oil recovery.
- This technology effectively utilizes clean energy for environmental remediation of oil spills.
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