A method of operating an incinerator (100) for solid fuel, said incinerator (100) comprising a device (160) for separating ash from flue gas, which method comprises the step of collecting ash deposits originating from the flue gas comprising ash from the incinerator (100) resulting in collected ash; To improve the flowability of the ash collected, the method comprises the step of introducing a powdery additive material comprising i) clay and ii) calcium carbonate into the flue gas comprising ash wherein the flue gas comprising ash has at the location where the additive material is introduced a temperature of at least 700° C., wherein the additive is introduced with a rate R of at least 0.1 times the mass of ash in the stream of flue gas comprising ash.

The invention comprises: a) first comburent supplying means (18) connected to the lower part of the oxidation chamber, for introducing pressurized oxygenated gas in the oxidation chamber at a speed that comprises a tangential component; b) a particle recirculation system, which comprises: a particle separator (24) on the upper part of the oxidation chamber for trapping hot particles of ash and unburned material, and a transportation system (25) for transferring trapped particles from the particle separator (24) to the base of the oxidation chamber; and c) a gas recirculation system comprising: a sucker (26) for suctioning combustion gases from the upper part of the oxidation chamber, and pipes (27) for transferring the suctioned gases to the base of the oxidation chamber. It provides an optimized thermal transfer that reduces the emission of pollutants in waste recovery.

The invention comprises: a) first comburent supplying means (18) connected to the lower part of the oxidation chamber, for introducing pressurized oxygenated gas in the oxidation chamber at a speed that comprises a tangential component; b) a particle recirculation system, which comprises: a particle separator (24) on the upper part of the oxidation chamber for trapping hot particles of ash and unburned material, and a transportation system (25) for transferring trapped particles from the particle separator (24) to the base of the oxidation chamber; and c) a gas recirculation system comprising: a sucker (26) for suctioning combustion gases from the upper part of the oxidation chamber, and pipes (27) for transferring the suctioned gases to the base of the oxidation chamber. It provides an optimized thermal transfer that reduces the emission of pollutants in waste recovery.

A method to thermally convert alternative fuels within a loop seal reactor by utilizing preheated/calcined cement meal as the heat source within which alternative fuels are immersed, subjected to drying, pyrolysis and subsequently charred, and an apparatus utilized to practice such method.

A method to thermally convert alternative fuels within a loop seal reactor by utilizing preheated/calcined cement meal as the heat source within which alternative fuels are immersed, subjected to drying, pyrolysis and subsequently charred, and an apparatus utilized to practice such method.

The invention provides a pyrolysis reaction system, the system comprising: a pyrolysis chamber comprising a feed inlet, a gas inlet and a product outlet, wherein the pyrolysis chamber is configured i) to receive a pyrolysable organic feed and an inert gas via the feed inlet and gas inlet respectively, ii) to pyrolyse the organic feed at a pyrolysis temperature to produce a carbonaceous pyrolysis product and a pyrolysis gas, wherein the pyrolysis gas will combine with the inert gas to form a gas mixture having a pyrolysis chamber pressure in the pyrolysis chamber, and iii) to discharge the carbonaceous pyrolysis product via the product outlet; a gas reactor configured to react the pyrolysis gas by combustion and/or carbon deposition at a gas reaction temperature and a gas reactor pressure; and a first partition defining a boundary between the pyrolysis chamber and the gas reactor, the first partition comprising a plurality of first apertures to provide fluid communication between the pyrolysis chamber and the gas reactor, wherein the pyrolysis reaction system is operable with the gas reactor pressure less than the pyrolysis chamber pressure such that the gas mixture flows from the pyrolysis chamber to the gas reactor through the first apertures, thereby providing at least a portion of the pyrolysis gas for reaction in the gas reactor.

Systems and methods for incinerating waste solids are disclosed. A fluidized bed of solid particles is provided at an elevated temperature in a reactor. The waste stream, comprising the waste solids and water, is passed onto the fluidized bed of solid particles. The fluidized bed of solid particles has a sufficiently elevated temperature to vaporize substantially all of the water into an offgas stream. The waste solids are mixed among the bed of solid particles. Sufficient heat and oxygen are provided to incinerate the waste solids.

Systems and methods for incinerating waste solids are disclosed. A fluidized bed of solid particles is provided at an elevated temperature in a reactor. The waste stream, comprising the waste solids and water, is passed onto the fluidized bed of solid particles. The fluidized bed of solid particles has a sufficiently elevated temperature to vaporize substantially all of the water into an offgas stream. The waste solids are mixed among the bed of solid particles. Sufficient heat and oxygen are provided to incinerate the waste solids.

The invention provides a pyrolysis reaction system, the system comprising: a pyrolysis chamber comprising a feed inlet, a gas inlet and a product outlet, wherein the pyrolysis chamber is configured i) to receive a pyrolysable organic feed and an inert gas via the feed inlet and gas inlet respectively, ii) to pyrolyse the organic feed at a pyrolysis temperature to produce a carbonaceous pyrolysis product and a pyrolysis gas, wherein the pyrolysis gas will combine with the inert gas to form a gas mixture having a pyrolysis chamber pressure in the pyrolysis chamber, and iii) to discharge the carbonaceous pyrolysis product via the product outlet; a gas reactor configured to react the pyrolysis gas by combustion and/or carbon deposition at a gas reaction temperature and a gas reactor pressure; and a first partition defining a boundary between the pyrolysis chamber and the gas reactor, the first partition comprising a plurality of first apertures to provide fluid communication between the pyrolysis chamber and the gas reactor, wherein the pyrolysis reaction system is operable with the gas reactor pressure less than the pyrolysis chamber pressure such that the gas mixture flows from the pyrolysis chamber to the gas reactor through the first apertures, thereby providing at least a portion of the pyrolysis gas for reaction in the gas reactor.

A nonflammable burner includes a can with holes in its sidewalls and bottom. Hollow legs are coupled to the bottom of the can. Each hollow leg has an open end in fluid communication with an interior of the can with perforations in each hollow leg providing fluid communication with an interior of the hollow leg such that each hollow leg provides fluid communication between an ambient environment and the interior of the can. A tray is positioned on a ground surface and engages with the hollow legs wherein the bottom of the can is spaced apart from the tray. Open-ended conduits extend between the sidewalls of the can to provide a fluid flow path there through. Each conduit admits the ambient environment therein, and includes perforations for providing fluid communication between the fluid flow path and the interior of the can.