Abstract:
The present invention relates to a means and method for at least injecting mitigant particles into the combustion region (fireball) of a biomass boiler (1). The mitigant particles mitigate the slagging, fouling and corrosion problems caused by biomass ash by at least capturing the biomass ash. The mitigant particles capture the biomass ash by forming a physical bond with the biomass ash such that it adheres to the surface of mitigant particles. By injecting the mitigant particles into the combustion region, the opportunity to capture biomass ash is optimised.
Abstract:
A process that uses targeted in-furnace Injection to feed a fluxing agent of the chemical family of compositions containing boron and/or alkali hydrates to either decrease heat transfer on waterwalls of utility furnaces burning solid fuels to improve steam generation, maintain steam temperature, and/or allow a protective layer of slag to form inside the barrels of cyclones on cyclone boilers burning fuels high in calcium so that the boiler can operate at a wider variety of power settings while allowing proper flow and drainage of slag from the cyclone barrels.
Abstract:
Systems and methods are provided for controlled combustion and decomposition of gaseous pollutants while reducing deposition of unwanted reaction products from within the treatment systems. Exemplary systems include a novel thermal reaction chamber design having stacked porous ceramic rings through which fluid, e.g., gases, may be directed to form a boundary layer along the interior wall of the thermal reaction chamber, thereby reducing particulate matter buildup thereon. The systems may further include the introduction of fluids from the center pilot jet to alter the aerodynamics of the interior of the thermal reaction chamber.
Abstract:
Procédé consistant à injecter des agents chimiques liquides en solution saturée et suspension dans un solvant afin de protéger les parois métalliques des circuits de fumées des installations thermiques telles que des chaudières ou des fours utilisant des combustibles fossiles de type fioul ou charbon, et ce dans I'objectif de réduire les corrosions a froid en phase d' arrêt ainsi que les émissions de particules corrosives et carbonées lors des démarrages a froid.
Abstract:
Systems and methods are provided for controlled combustion and decomposition of gaseous pollutants while reducing deposition of unwanted reaction products from within the treatment systems. Exemplary systems include a novel thermal reaction chamber design having stacked porous ceramic rings through which fluid, e.g., gases, may be directed to form a boundary layer along the interior wall of the thermal reaction chamber, thereby reducing particulate matter buildup thereon. The systems may further include the introduction of fluids from the center pilot jet to alter the aerodynamics of the interior of the thermal reaction chamber.
Abstract:
The present invention relates to a slagging combustion furnace in a gasification and slagging combustion system in which wastes are gasified to produce combustible gas in a gasification furnace, and the produced combustible gas is combusted together with unburned carbon to generate molten slag in a slagging combustion furnace. The slagging combustion furnace (3) comprises a gas inlet port (20) formed in an upper portion of the side wall for introducing combustible gas (b) to produce a swirling flow of the combustible gas (b), and a plurality of gas supply nozzles (24, 25), which are open at an inner surface of the side wall and an inner surface of the top wall, for supplying gas (f) for combustion. The gas (f) for combustion is blown from the gas supply nozzles (24, 25) into the swirling flow of the combustible gas (b).