Combustive destruction of noxious substances

Apparatus for the combustive destruction of noxious substances, comprising an annular combustion zone surrounded by an exit surface of an inwardly fired foraminous burner, and surrounding an exit surface of an outwardly fired foraminous burner, means for injecting a gas stream containing at least one noxious substance into the combustion zone, and means for supplying fuel gas and oxidant to the foraminous burners to effect combustion at the exit surfaces.

A method for the combustive destruction of noxious substances, comprising injecting a gas stream containing at least one noxious substance into a combustion zone surrounded by the exit surface of an inwardly fired foraminous burner having an open end, supplying fuel gas and oxidant to the foraminous burner to effect combustion at the exit surface, and discharging a combustion product from the combustion zone through the open end of the foraminous burner, characterised in that the open end of the foraminous burner is heated by a second burner.

A method for the combustive destruction of noxious substances, comprising injecting a gas stream containing at least one noxious substance into an annular combustion zone surrounded by the exit surface of an inwardly fired foraminous burner and surrounding the exit surface of an outwardly fired foraminous burner, and supplying fuel gas and oxidant to the foraminous burners to effect combustion at the exit surfaces.