Methods and apparatus for air pollution control
AssigneeGeneral Electric Company
InventorRobert Taylor
Life of this patent
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Abstract
A method for filtering particle-laden gas includes electrostatically precipitating particles from the particle-laden gas to produce a gas having residual particulates, agglomerating the residual particulates, and using a fabric filter to filter the agglomerated residual particulates from the gas.
Claims28
A method for filtering particle-laden gas comprising:
- electrostatically precipitating particles from the particle-laden gas to produce a gas having residual particulates;
- agglomerating the residual particulates;
- and
- using a fabric filter to filter the agglomerated residual particulates from the gas.
A method in accordance with claim 9 wherein the air to cloth ratio is about 2.4 m/min.
An apparatus for filtering particle-laden gas, said apparatus comprising an electrostatic precipitator, a particle agglomerator, and a fabric filter, wherein said particle agglomerator configured to agglomerate residual particles remaining in the gas leaving said electrostatic precipitator prior to passage of the gas through said fabric filter.
An industrial plant system comprising:
- a burner;
- an electrostatic filter configured to filter particle-laden gas from said burner;
- a particle agglomerator configured to agglomerate residual dust particles in the filtered gas;
- and
- a baghouse having a fabric filter configured to filter exhaust gas having the agglomerated dust particles from the particle agglomerator.
A method for filtering particle-laden gas having dust particles having a distribution of sizes suspended therein, said method comprising:
- preprocessing the particle-laden gas to remove a portion of the dust particles suspended therein and to skew the particle size distribution of particles remaining suspended in the preprocessed gas towards smaller particles;
- further processing the preprocessed gas to increase the sizes of particles suspended therein;
- and
- filtering the further processed gas using a fabric filter.
Dependencies are inferred from the claim text.