Vibration-assisted oil extraction from porous materials
A mechanical vibration technology that uses tunable frequency and amplitude to destabilize and extract oil from porous media. Preliminary tests show 20% liquid removal from clogged filters, with applications in food processing, mining, and industrial filtration.
Overview
This technology leverages mechanical vibration to extract oil and other viscous liquids from porous materials. By applying controlled vibrations at specific frequencies and amplitudes, the technology creates a phase difference between the surface vibration and the liquid movement, generating a pressure gradient that forces liquid out of the porous matrix. Preliminary validation in mining filtration applications demonstrated approximately 20% liquid removal compared to non-vibrated filters, suggesting strong potential for broader applications in food processing and industrial separation.
The approach is grounded in well-established principles of vibration inertia, similar to those used in agricultural produce cleaning and rapid clothes drying. By tuning vibration parameters, the technology can be optimized for different material-liquid combinations, offering a non-chemical, non-thermal method for liquid extraction.
Technical specifications
Key features:
- Uses mechanical vibration to destabilize liquid within porous media and drive extraction
- Phase difference between surface vibration and liquid movement creates a directional pressure gradient
- Tunable frequency and amplitude allow optimization for different porous materials and liquid viscosities
- Targets two frequency regimes: capillary frequency range (~100 Hz) for air/oil interface destabilization, and megasonic range (500 kHz to 10 MHz) for higher-frequency separation
- Non-destructive and non-chemical extraction method
- Analogous to proven applications in mining filter de-clogging, where viscous slurry is removed from porous mesh
Validation equipment:
- Vibration plate with signal generator and amplifier for controlled frequency and amplitude testing
- Preliminary testing demonstrated 20% liquid extraction from porous mesh filters
Technology readiness level
This technology is at an early-to-mid stage of development. Preliminary proof-of-concept testing has been completed in the context of mining filter de-clogging, where mechanical vibration successfully pushed viscous slurry out of porous mesh filters with measurable improvement. Future validation will focus on optimizing frequency and amplitude parameters specifically for oil extraction from porous food materials such as potato chips, targeting both capillary and megasonic frequency regimes. Further development is needed to determine optimal vibration parameters for various porous material and liquid combinations before commercial deployment.
About Cornell University
Cornell University is a comprehensive private, land-grant research university with campuses in Ithaca and New York City, combining significant scale with cross-disciplinary breadth. Industry connects through open-access user facilities and prototyping labs, pilot-scale testbeds, and a research and technology park that provide pathways from discovery to demonstration. A statewide extension network and integration with a major hospital system enable real-world deployment, while a graduate campus embedded in New York City’s tech corridor provides direct access to startups, venture investors, and corporate R&D teams. Research is supported by competitive federal funding from agencies such as the National Science Foundation, National Institutes of Health, the Department of Energy, and the U.S. Department of Agriculture. A dedicated technology transfer office streamlines IP management, licensing, startup formation, and corporate partnerships across campuses.
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