The present invention relates to a method and a plant for treating carbon-containing waste that may comprise mineral fillers and/or potential contaminants. This method comprises: preparing a molten glass bath at a temperature between 1100° C. and 1600° C.; loading the waste to be treated into said molten glass bath; injecting an oxidizer and optionally a fuel under pressure into said molten glass bath by means of at least one hose, one end of which is immersed in said bath, said oxidizer being introduced in a molar amount less than the molar amount of the carbon-containing compounds, thus causing combustion of said waste and generation of hot synthesis gases; implementing heat exchange between a heat-transfer fluid and the hot synthesis gases in conditions allowing simultaneous recovery of at least part of their heat energy and at least part of the heat energy released by their combustion, air being injected sequentially into said gases during said heat exchange to cause self-ignition of the mixture of said gases and air, each injection increasing the degree of combustion.

A thermal oxidizer employing an oxidation mixer, an oxidation chamber, a retention chamber and a heat dissipater forming a fluid flow path for thermal oxidation of a waste gas. In operation, the oxidation mixer facilitates a combustible mixture of the waste gas and an oxidant into an combustible waste gas stream, the oxidation chamber facilitates a primary combustion reaction of the combustible waste gas stream into an oxygenated waste gas stream, the retention chamber facilitates a secondary combustion reaction of the oxygenated waste gas stream into oxidized gases and the heat dissipator reduces the temperature of the flow of oxidized gases within the heat dissipator, which is communicated to a greenhouse gas processor that extracts greenhouse gas(es) from the vaporized oxidized gases. The greenhouse gas processor may condensate the greenhouse gas(es), acid neutralize the condensation of the greenhouse gas(es), and capture the acid neutralization of the condensation of the greenhouse gas(es).

A waste incinerator, in a vertical structure and including from the top down: a drying section, a destructive distillation section, a reduction section, and a combustion section. The combustion section includes: two layers of grate bars, a first combustion layer, a second combustion layer, and a third combustion layer. The heat produced from the combustion in the combustion section is used to heat the carbide in the reduction section. The heated carbide reduces CO.sub.2 produced in the combustion into CO (coal gas). The coal gas ascends to the destructive distillation section through the ambient coal gas chamber to heat and destructively distillate the waste to produce the pyrogenic coal gas and the carbide. The carbide drops to the combustion section for combustion, and the pyrogenic coal gas and the coal gas are collected by the draft fan.

Provided is a plastic waste solid fuel incinerator comprising: an incinerator housing which has, on the upper portion thereof, a gas outlet through which combustion gas is discharged; a fuel supply unit which transfers and supplies a plastic waste solid fuel; a first combustion unit which continuously transfers and burns the supplied plastic waste solid fuel; a first air supply unit which supplies air needed for combustion to the first combustion unit; a combustion gas induction unit which induces the combustion gas generated from the first combustion unit toward the lower portion of a first combustion chamber; a second combustion unit which is arranged in the lower portion of the first combustion unit and comprises a downward injection nozzle unit which downwardly injects the combustion gas supplied through the combustion gas induction unit in order to reburn the combustion gas; and a second air supply unit which is arranged in the lower portion of the second combustion unit and supplies the air needed for combustion to the second combustion unit by downwardly injecting the air. Accordingly, there is an advantage of allowing continuous combustion using combustion gas generated during the combustion of the plastic waste solid fuel without using a separate auxiliary fuel, thereby reducing incineration costs.

A stoker-type incinerator includes: a recirculated exhaust gas supply unit which allows exhaust gas resulting from treating combustion gas to reflux to a combustion gas channel via a recirculated exhaust gas nozzle provided on the combustion gas channel and supplies the exhaust gas as recirculated exhaust gas. The stoker-type incinerator further includes a secondary combustion air supply unit which supplies secondary combustion air on a downstream side of the recirculated exhaust gas nozzle on the combustion gas channel via a secondary combustion air nozzle provided on the combustion gas channel, in which the recirculated exhaust gas nozzle and the secondary combustion air nozzle are arranged in different positions in a plan view.

A material conversion apparatus includes: (a) a housing, (b) a chamber for treating the material disposed within the housing, (c) an induction coil surrounding the chamber and (d) means for exhausting or evacuating the treated content of the chamber.

Process and device for improving of synthesis and/or flue gas velocity field solves technical problem of local increase of velocity and resulting non-homogeneous flue gas field resulting in uneven temperature and concentration distribution within flue gas field by providing for homogenization of flue gas field using strategically placed obstacles in the flow field such as flaps or similar devices.

Disclosed is a system and method for the combustion of biomass material employing a swirling fluidized bed combustion (SFBC) chamber, and preferably a second stage combustion carried out in a cyclone separator. In the combustion chamber, primary air is introduced from a bottom air box that fluidizes the bed material and fuel, and staged secondary air is introduced in the tangential direction and at varied vertical positions in the combustion chamber so as to cause the materials in the combustion chamber (i.e., the mixture of air and particles) to swirl. The secondary air injection can have a significant effect on the air-fuel particle flow in the combustion chamber, and more particularly strengthens the swirling flow, promotes axial recirculation, increases particle mass fluxes in the combustion chamber, and retains more fuel particles in the combustion chamber. This process increases the residence time of the particle flow. The turbulent flow of the fuel particles and air is well mixed and mostly burned in the combustion chamber, with any unburned waste and particles being directed to the cyclone separator, where such unburned waste and particles are burned completely, and flying ash is divided and collected in a container connected to the cyclone separator, while dioxin production is significantly minimized if not altogether eliminated. A Stirling engine along with cooling system and engine control box is integrated with the SFBC chamber to produce electricity from the waste combustion process. Residual heat in the flue gas may be captured after the combustion chamber and directed to a fuel feeder to first dry the biomass. System exhaust is directed to a twisted tube-based shell and tube heat exchanger (STHE) and may produce hot water for space heating.

A portable, yard waste incinerator system with a large burn tank located on a transport and configured for burning yard waste. Located inside the burn tank is lower primary combustion chamber and an upper secondary chamber, Located inside the primary burn housing with a burner. Propane fuel is connected to an external propane gas source which delivers propane to the burner. The primary burn housing includes a plurality of holes that allows flames and hot gases from the fire and heat from the primary combustion chamber to extend into a secondary combustion chamber. The system also includes a vacuum system which picks up small, loose combustible debris from the yard and delivers the debris and oxygen to the secondary combustion chamber. The system also includes an optional electric generator that energizes the vacuum system and an optional shredder that delivers shredded yard waste to the secondary burning chamber.

In a method for the combustion management in firing installations, in which a primary combustion gas quantity is conveyed through the fuel into a primary combustion area, part of the waste gas flow is extracted in the rear grate area and returned to the combustion process in the form of internal recirculation gas. In this case, no secondary combustion air is supplied between the grate and the supply of the internal recirculation gas. A firing installation for carrying out this method features nozzles above the firing grate such that no air supply is arranged between the firing grate and the nozzles.