Ultra-high particulate collection of sub-micron aerosols
AssigneeThe Babcock & Wilcox Company
InventorWilliam Downs
Life of this patent
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Abstract
A method and apparatus for ultra-high particulate collection of sub-micron aerosols in a fuel gas conveys the fuel gas to a first venturi scrubber for removing a relatively large amount of particulates and leaving a smaller particulate load which is not removable in the first venturi scrubber. The fuel gas with the smaller particulate load is then conveyed to an electrostatic agglomerator for agglomerating the remaining smaller particles in the smaller particle load into larger particles. The fuel gas with the agglomerated larger particles is then conveyed to a second venturi scrubber for removing the agglomerated larger particles.
Claims14
A method for ultra-high particulate collection of sub-micron aerosols in a fuel gas, comprising:
- providing a fuel gas under pressures exceeding 10 bar, the fuel gas also having an initial particulate loading between 8 grains/ft3 and about 800 grains/ft3;
- conveying the fuel gas to a first venturi scrubber for removing a relatively large particulate load in the fuel gas and leaving smaller particulate load in the fuel gas which is not removed in the first venturi scrubber;
- conveying the fuel gas with the small particulate load to an electrostatic agglomerator for agglomerating smaller particles into larger particles;
- and
- conveying the gas with larger particles to a second venturi scrubber for removing the larger particles.
An apparatus for ultra-high particulate collection of sub-micron aerosols in a fuel gas at high pressures, comprising:
- a first venturi scrubber means for reducing particulate matter from a fuel gas having an initial particulate loading between 8 grains/ft3 and about 800 grains/ft3;
- means for conveying the fuel gas to the first venturi scrubber for removing a relatively large particulate load from the fuel gas and leaving a smaller particulate load in the fuel gas which is not removed in the first venturi scrubber and capable of operating at a pressure greater than 10 bar;
- an electrostatic agglomerator;
- means for conveying the fuel gas with the smaller particulate load to the electrostatic agglomerator for agglomerating the particles in the smaller particle load into larger particles and capable of operating at a pressure greater than 10 bar;
- a second venturi scrubber means for further reducing particulate matter from the fuel;
- and
- means for conveying the fuel gas with the agglomerated larger particles to the second venturi scrubber for removing the agglomerated larger particles and capable of operating at a pressure greater than 10 bar.
Dependencies are inferred from the claim text.