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Separation of fine binary mixtures under vibration in a gas-solid fluidized bed with dense medium
Haibo Jin1, Zemin Tong, H Inaki Schlaberg
1Department of Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing, China. jinhaibo@bipt.edu.cn
Summary
Separating fine coke-slag mixtures using a vibrating fluidized bed with dense media achieved over 70% efficiency. This method transforms waste into a resource, offering economic and environmental benefits.
Area of Science:
- Environmental Engineering
- Materials Science
- Chemical Engineering
Background:
- Coke-slag mixtures from water-air generators pose environmental challenges.
- These mixtures represent a potential resource for economic recovery.
Purpose of the Study:
- To investigate the separation of fine coke-slag binary mixtures.
- To optimize separation efficiency in a vibrating fluidized bed with dense media.
Main Methods:
- Experimental investigation of a vibrating fluidized bed with dense media.
- Analysis of factors including volume ratio, fluidization velocity, and vibration parameters.
Main Results:
- Vibration improves fluidization properties and bed density stability.
- Separation efficiency exceeding 70% was achieved under optimal conditions.
- Optimal conditions involved specific particle-to-bed volume ratios and vibration settings.
Conclusions:
- Vibrating fluidized bed separation is effective for fine coke-slag mixtures.
- The process offers a viable method for resource recovery and waste reduction.