Spouted Bed Geometries for Enhanced Particle Circulation
Smootherand more rapid particle circulation in a spouted bedEliminationof reciprocal particle movement in the subsiding annulus, reducing particledamageReducedfouling of gas inlet (for chemical vapor deposition process)Moreefficient gas-solid contactingImprovedheat transfer and thermal uniformity in the bedMoreuniform coatings on particles (for chemical vapor deposition)Lowermaintenance requirements and less frequent cleanings
ChemicalreactorsParticlecoatingsNuclearfuel pelletsPharmaceuticalsNanoparticleproductionFluidizedbed combustionFluidizedbed processing applications
Researchers at INL have developed a modified spouted bed geometry that prevents the slugging effect while preserving thebeneficial flow and contact properties of a spouted bed. This has been tested to show marked improvement and uniformity inparticle coatings, and to induce a more stable, smoother particle flow that compliments natural convection. The geometries allowfor more rapid particle circulation than a conical bed, and improve fluid-solid contacting and heat transfer throughout the bed. Because of the cleaner operation, less maintenance is required.
LICENSINGOPPORTUNITY: IdahoNational Laboratory (INL) and its M&O Contractor Battelle Energy Alliance,LLC (BEA) are currently looking for commercialization partner(s) interested inentering into a license agreement for the purpose of commercializing thetechnology described below. INTELLECTUALPROPERTY STATUS: This invention has associated intellectual property USPatent No. 7,947,326, BEA Docket No. BA-088: “Apparatus and Methods of Forminga Fluidized Bed of Circulating Particles,” issued 24 May 2011. DEVELOPMENTSTATUS: This technology has been tested and validated at thebench scale. Additional development will be required to demonstrate a pilotscale process. BEA may be in a position to support additional research anddevelopment of this technology under a mutually acceptable Cooperative Research& Development Agreement (CRADA), Strategic Partnership Projects (SPP)agreement, or a similar agreement, all of which are subject to approval by DOE. Publications:
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