Abstract: An incineration process which can utilize any type of incineration means for disposing of hazardous, as well as non-hazardous, burnable waste. Such wastes include toxic combustible liquids, oil slurries, soils contaminated with dioxin, PCBs, creosote, or any other potentially toxic combustible material. In particular, the present invention relates to an incineration process which has no continuous stack discharge or pollution. This process provides an improved incineration means which conserves energy by reacting hazardous and non-hazardous waste with steam and oxygen to convert it into gaseous and/or solid fuel; cooling, compressing and recycling a portion of the fuel gas to the incinerator system to provide fuel for the incineration process, and to recover gases that can be used for production of chemicals or sold as fuel gas.

Abstract: An incineration process which can utilize any type of incineration means for disposing of hazardous, as well as non-hazardous, burnable waste. Such waste include toxic combustible liquids, oil slurries, soils contaminated with dioxin, PCBs, creosote, or any other potentially toxic combustible material. In particular, the present invention relates to an incineration process which has no continuous stack discharge of polutants. In this process, the flue gas stream from the incineration stages is enriched with oxygen and fed to a downstream combustion zone. A portion of the flue gas stream from the downstream combustion zone is enriched with oxygen and recycled to the incineration means. The remaining portion of the flue gas stream from the downstream combustion zone is scrubbed to remove acid gases and passed through a purification zone wherein any remaining contaminates are removed.

Abstract: A liquid atomizing spray nozzle for admixing a liquid hydrocarbon fuel with oxygen (air) and burning the mixture to supply heat. The burner body portion of the device is constituted of a pair of concentric tubes, each provided with an inlet and annular outlet for the fuel and oxygen, respectively. A deflector of conic shape is axially mounted within the inside tube, the sloped side of which is faced inwardly toward the annular outlets and in a straight line therewith so that both of the concentric tubular columns forming the streams emitted from the annular outlets of the concentric tubes impact on the sloped surface near the apex of the cone to admix one stream with the other, and are forced outwardly to form a combustible mixture which, on ignition, burns ex situ of the burner body. The deflector is extended outwardly from the burner body at a critical distance ranging from about 0.5 to about 5 times the diameter of the annular outlet through which the oxygen is ejected.

Abstract: An incineration process which can utilize any type of incineration means for disposing of hazardous, as well as non-hazardous, burnable waste. Such waste include toxic combustible liquids, oil slurries, soils contaminated with dioxin, PCBs, creosote, or any other potentially toxic combustible material. In particular, the present invention relates to an incineration process which has no continuous stack discharge or pollution. In this process, a portion of the flue gas stream is enriched with oxygen and recycled to the incineration means. The remaining portion of the flue gas stream is scrubbed to remove acid gases and passed through a purification zone wherein any remaining contaminates are removed.

Abstract: A multi-stage rotary kiln for burning waste, suitably skid mounted for ease of transport. The kiln includes a pair of concentric tubes affixed one inside the other and rotatable; a first large diameter tube and a second tube of smaller diameter, provided at one end with circumferential wall openings, mounted inside said first large diameter tube. An annular passageway between the two tubes, and opening through the second small diameter tube provides a continuous flow path for the introduction of waste and hot burning gases, the hot gases flowing cocurrently with the waste via the annular passageway, and circumferential openings into and through the second tube. A feed mechanism introduces waste into the annular passageway, elevator means lifts the burning waste from the annular passageway and passes same into the circumferential openings, and the burning waste is transported through the smaller tube and discharged.

Abstract: A device is provided for heating liquids, slurries and the like by direct condensation of steam. The device consists of a vertically oriented, substantially cylindrical elongated vessel, wherein liquid to be heated is introduced at the top and the heated liquid is removed at the bottom. The device is provided with at least one liquid treatment zone consisting of a perforated tray placed perpendicular to the downward flow of the liquid, a downwardly conveying cone-shaped underflow located below the tray and a hemispherical impingement surface positioned below the opening of the cone-shaped underflow. Steam is introduced in the zone at a point where the liquid exits from the underflow. This arrangement allows a maximum degree of heat exchange between the steam and the liquid without causing "hammering" due to excessive steam condensation.