Reactor design to reduce particle deposition during process abatement
First Claim
1. A thermal abatement reactor for removing pollutant from waste gas, the thermal reactor comprising:
- a thermal reaction unit comprising;
an exterior wall having a plurality of perforations for passage of a fluid therethrough;
a porous ceramic interior wall defining a thermal reaction chamber, wherein the interior wall comprises at least two ring sections in a stacked arrangement;
at least one waste gas inlet in fluid communication with the thermal reaction chamber for introducing a waste gas therein; and
at least one fuel inlet in fluid communication with the thermal reaction chamber for introducing a fuel for use during decomposition of said waste gas in the thermal reaction chamber; and
means for directing a fluid through the one or more perforations of the exterior wall and the porous ceramic interior wall to reduce the deposition and accumulation of particulate matter thereon; and
a water quench unit coupled to the thermal reaction unit and adapted to receive a gas stream from the thermal reaction unit;
wherein the total number of perforations in proximity to the waste gas inlet and the fuel inlet is greater than the total number of perforations in proximity to the water quench unit.
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Accused Products
Abstract
The present invention relates to systems and methods for controlled combustion and decomposition of gaseous pollutants while reducing deposition of unwanted reaction products from within the treatment systems. The systems include a novel thermal reaction chamber design having stacked reticulated ceramic rings through which fluid, e.g., gases, may be directed to form a boundary layer along the interior wall of the thermal reaction chamber, thereby reducing particulate matter buildup thereon. The systems further include the introduction of fluids from the center pilot jet to alter the aerodynamics of the interior of the thermal reaction chamber.
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Citations
25 Claims
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1. A thermal abatement reactor for removing pollutant from waste gas, the thermal reactor comprising:
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a thermal reaction unit comprising; an exterior wall having a plurality of perforations for passage of a fluid therethrough; a porous ceramic interior wall defining a thermal reaction chamber, wherein the interior wall comprises at least two ring sections in a stacked arrangement; at least one waste gas inlet in fluid communication with the thermal reaction chamber for introducing a waste gas therein; and at least one fuel inlet in fluid communication with the thermal reaction chamber for introducing a fuel for use during decomposition of said waste gas in the thermal reaction chamber; and means for directing a fluid through the one or more perforations of the exterior wall and the porous ceramic interior wall to reduce the deposition and accumulation of particulate matter thereon; and a water quench unit coupled to the thermal reaction unit and adapted to receive a gas stream from the thermal reaction unit; wherein the total number of perforations in proximity to the waste gas inlet and the fuel inlet is greater than the total number of perforations in proximity to the water quench unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A thermal abatement reactor for removing pollutant from waste gas, the thermal reactor comprising:
a thermal reaction unit comprising; an exterior wall having a plurality of perforations for passage of a fluid therethrough; a porous ceramic interior wall defining a thermal reaction chamber, wherein the interior wall comprises at least two ring sections in a stacked arrangement; at least one waste gas inlet in fluid communication with the thermal reaction chamber for introducing a waste gas therein; and at least one fuel inlet in fluid communication with the thermal reaction chamber for introducing a fuel for use during decomposition of said waste gas in the thermal reaction chamber; and means for directing a fluid through the one or more perforations of the exterior wall and the porous ceramic interior wall to reduce the deposition and accumulation of particulate matter thereon; a water quench unit coupled to the thermal reaction unit and adapted to receive a gas stream from the thermal reaction unit; and a fibrous material disposed between the exterior wall and the porous ceramic interior wall. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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14. The thermal abatement reactor of 13, wherein the fibrous material comprises material selected from the group consisting of spinel fibers, glass wool and aluminum silicate.
Specification