Abstract: The burning of fuel (e.g., coal) generates an exhaust flow containing particles. The flow is passed through a pulsed combustion agglomerator. The agglomerator is cyclically operated by introducing a fuel and oxidizer charge to at least one conduit, initiating combustion of the charge. The combustion generates a shock wave to which the flow is exposed causing partial agglomeration of the particles. The flow is passed through a particle removal system and exhausted.

Abstract: An apparatus for cleaning a surface within a vessel has an elongate combustion conduit extending from an upstream end to a downstream end. The downstream end is associated with an aperture in the wall of the vessel and is positioned to direct a shockwave toward the surface. At least one hanger supports the combustion conduit at at least one location along a length of the combustion conduit.

Abstract: An apparatus for providing detonative cleaning through a vessel wall has a first conduit extending through the wall. A first valve has an open condition permitting communication through the first conduit and a closed condition. A second conduit has an insertion portion dimensioned to be received within a receiving portion of the first conduit. A second valve has an open condition permitting communication through the second conduit and a closed condition.

Abstract: Apparatus and methods are provided for cleaning a surface within a vessel. An elongate combustion conduit extends from an upstream end to a downstream end associated with an aperture in a wall of the vessel and positioned to direct a shockwave toward the surface. A resilient member resiliently restrains the combustion conduit against recoil forces.