A method and apparatus, for improving the control and the efficiency of in-situ combustion (i.e. burning of oil spills atop bodies of water) of combustible waste materials on land or sea to cleanup such waste, that is also less complex than similar apparatuses, whereby the apparatus traverses over a surface containing combustible material, allowing for vortex flow incineration of the material to occur inside a combustion chamber, aided by a vortical flow of air which is controlled for greater combustion efficiency. Compared with current methods and apparatuses to cleanup similar waste, the present method requires minimal moving parts, is mobile, is low cost, is easy to construct, enables high-quality combustion, burns faster and more complete, produces low emissions, incinerates waste material on land and water, and mitigates the creation of combustion residue which thereby mitigates the adverse effects of such combustion residue that smothers ocean life.

A method of optimising operating conditions in an abatement apparatus configured to treat an effluent stream from a processing tool and an abatement apparatus are disclosed. The method of optimising operating conditions in an abatement apparatus configured to treat an effluent stream from a processing tool comprises: determining a concentration of carbon monoxide produced by the abatement apparatus when treating the effluent stream; and adjusting an operating parameter of the abatement apparatus in response to the concentration of carbon monoxide. In this way, the performance of the abatement device can be controlled by simply adjusting the operating parameters of the abatement device in response to the amount of carbon monoxide being produced to create conditions within the abatement apparatus which improve the removal of compounds being treated within the abatement device, while reducing undesirable by-products and without requiring advanced knowledge of the content of the effluent stream.

A system and method for flaring with a flare including a flare stack and a flare tip at a well site having a wellhead and a wellbore for production of crude oil or natural gas, or both, providing produced fluid including hydrocarbon from the wellhead to the flare stack, discharging the produced fluid from the flare tip through a nozzle discharge opening, combusting the hydrocarbon of the produced fluid as discharged from the flare tip, and a control system adjusting flow area of the nozzle discharge opening.

Method of operating a long direct-fired inclined counterflow rotary kiln for the thermal treatment of material and counterflow rotary kiln adapted for same, whereby material to be treated is introduced into the kiln at the inlet end and treated material is evacuated from the kiln at the outlet end, whereby a main combustion zone extends inside the kiln over a distance of ¼ to ⅓ of the internal length L.sub.int of the kiln, whereby a supplementary combustion zone in which supplementary combustion takes place with an oxygen-rich oxidant extends inside the kiln over a distance from the inlet end of at most ¼ of the internal length L.sub.int, and whereby no combustion takes place in a heat exchange zone located between the main combustion zone and the supplementary combustion zone.

Exemplary arrangements relate to a method for incinerating waste on a combustion grate of a furnace and an apparatus for carrying out such a method. Oxygen mixed with carrier gas is supplied to the combustion for incineration as an oxygen and carrier gas mixture. The carrier gas comprises recirculated combustion gas from the furnace and may have a CO.sub.2 concentration of from 10% to 99%.

A grilling device includes an auger feeder system, a heating element, a blower and a temperature control system. The temperature control system includes at least a first temperature sensor inside the firepot and a second temperature sensor inside a cooking chamber above the firepot. The heating element can also serve as the first temperature sensor. A method for controlling the temperature of the grill can include receiving temperature feedback information from one or more of the temperature sensors and adjusting power provided to the auger feeder system, heating element, and blower. The temperature control system produces cold smoke resulting from the combustion of lignin in solid wood fuel while minimizing temperatures inside the cooking chamber.

Provided is a system for enhancing combustion in a kiln, including a kiln combustion chamber disposed within the kiln, the kiln combustion chamber having an atmosphere therein; a main burner for heating the atmosphere; a calciner assembly for providing a substance to be heated into the kiln combustion chamber; a precalciner including a precalciner combustion chamber disposed within the precalciner for receiving a biomass fuel for combustion in the precalciner combustion chamber, the precalciner combustion chamber in communication with the kiln combustion chamber; and a precalciner oxygen injector in fluid communication with the precalciner combustion chamber for providing a first oxygen stream into the biomass fuel for the combustion. A related apparatus and method for enhancing combustion with oxygen and biomass fuel are also provided.

Disclosed herein is a combustion apparatus which comprises a chamber having a apertured rotatable tubular auger mounted between end walls of the chamber to convey particulate material from the region of the chamber proxi-mate the feed inlet to the combustion gas outlet and a blower connected to the opposite end of the tubular auger and configured to blow gas into the bore of the auger and out through the apertures into the chamber.

A method includes combustion products from combustion of fuel with oxidant brought first through a first heat exchanging step (150;201), in which thermal energy is transferred from the combustion products to the fuel which is thereby preheated, and the cooled combustion products thereafter are brought through a second heat exchanging step (151;203), in which thermal energy is transferred from the cooled combustion products to the oxidant which is thereby also preheated. A related system for preheating the fuel and oxidant is also provided.

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).