Abstract: In a flameless thermal oxidizer including a vessel configured to contain a matrix bed of media, and a vent gas stream conduit and an oxidizing agent conduit each extending into an interior of the vessel at least partially within the matrix bed of media, a method of delivering a vent gas stream and oxidizing agents into the vessel includes the steps of distributing the vent gas stream through the vent gas stream conduit; distributing the oxidizing agents through a mixing conduit; and combining the vent gas stream and the oxidizing agents in the mixing conduit.

Abstract: In a flameless thermal oxidizer including a vessel configured to contain a matrix bed of media, and a vent gas stream conduit and an oxidizing agent conduit each extending into an interior of the vessel at least partially within the matrix bed of media, a method of delivering a vent gas stream and oxidizing agents into the vessel includes the steps of distributing the vent gas stream through the vent gas stream conduit; distributing the oxidizing agents through a mixing conduit; and combining the vent gas stream and the oxidizing agents in the mixing conduit.

Abstract: A diptube apparatus for a flameless thermal oxidizer having a matrix bed of media including a vent gas stream conduit at least partially positioned within the matrix bed for delivering a vent gas stream; an oxidizing agent conduit separate from the vent gas stream conduit and at least partially positioned within the matrix bed for delivering oxidizing agents; and at least one mixing conduit positioned within the matrix bed and configured to receive the vent gas stream and the oxidizing agents to deliver a combination of the vent gas stream and the oxidizing agents into the matrix bed. A related method and flameless thermal oxidizer are also provided.

Abstract: A diptube apparatus for a flameless thermal oxidizer having a matrix bed of media including a vent gas stream conduit at least partially positioned within the matrix bed for delivering a vent gas stream; an oxidizing agent conduit separate from the vent gas stream conduit and at least partially positioned within the matrix bed for delivering oxidizing agents; and at least one mixing conduit positioned within the matrix bed and configured to receive the vent gas stream and the oxidizing agents to deliver a combination of the vent gas stream and the oxidizing agents into the matrix bed. A related method and flameless thermal oxidizer are also provided.

Abstract: A diptube assembly for a flameless thermal oxidizer having a matrix bed of media is provided. The diptube assembly comprises a fuel conduit at least partially positioned within the matrix bed for delivering fuel. An oxidizing agent conduit is at least partially positioned within the matrix bed for delivering oxidizing agents, wherein the oxidizing agent conduit is separate from the fuel conduit. At least one mixing conduit is positioned within the matrix bed and configured to receive fuel from the fuel conduit and the oxidizing agent from the oxidizing agent conduit. The mixing conduit is positioned to deliver the combination of fuel and oxidizing agents into the matrix bed of media.

Abstract: A flameless thermal oxidizer including a matrix bed containing media and an inlet tube extending into the matrix bed and having an outlet positioned to deliver reacting gases into the matrix bed is disclosed. The matrix bed defines a void proximal the outlet of the inlet tube. Also disclosed is a method of reducing pressure losses in a flameless thermal oxidizer including the step of introducing reacting gases from an inlet tube into a void defined by a matrix bed.

Abstract: A system is provided for vaporizing a cryogenic liquid. The system includes means for producing an exhaust gas by flameless thermal oxidation of a fuel. The system also includes means for transferring heat from the exhaust gas to the cryogenic liquid. The heat transferring means is coupled to receive the exhaust gas from the exhaust gas producing means. The means for producing an exhaust gas optionally includes an oxidizer having a matrix bed, a fuel/air mixture inlet positioned to deliver the fuel/air mixture to the matrix bed, and an exhaust outlet positioned to deliver the exhaust gas from the oxidizer to the heat transferring means. The means for transferring heat optionally includes a receptacle configured to hold a heat transfer medium, a conduit for cryogenic liquid extending into the receptacle, and a sparger positioned to deliver exhaust gas from the exhaust gas producing means to the receptacle.

Abstract: A system is provided for vaporizing a cryogenic liquid. The system includes means for producing an exhaust gas by flameless thermal oxidation of a fuel. The system also includes means for transferring heat from the exhaust gas to the cryogenic liquid. The heat transferring means is coupled to receive the exhaust gas from the exhaust gas producing means. The means for producing an exhaust gas optionally includes an oxidizer having a matrix bed, a fuel/air mixture inlet positioned to deliver the fuel/air mixture to the matrix bed, and an exhaust outlet positioned to deliver the exhaust gas from the oxidizer to the heat transferring means. The means for transferring heat optionally includes a receptacle configured to hold a heat transfer medium, a conduit for cryogenic liquid extending into the receptacle, and a sparger positioned to deliver exhaust gas from the exhaust gas producing means to the receptacle.

Abstract: The invention provides a gas recuperative flameless thermal oxidizer. The oxidizer includes a matrix bed and at least one feed passage extending at least partially within the matrix bed. The feed passage has an inlet configured to receive combustible vapor or an air-combustible vapor mixture and an outlet configured to deliver the combustible vapor or the air-combustible vapor mixture into the matrix bed. The feed passage has a cross-sectional area and a length within the matrix bed, wherein a ratio of the length (ft) to the cross-sectional area (in2) is at least about 0.5:1.