A combustion gas particle adhesion prevention boiler includes a furnace for containing a combustion gas and passing an exhaust gas; a dust collector for collecting combustion gas particles present in the exhaust gas; a combustion unit for combusting fuel and injecting a flame generated by the combustion into the furnace in order to generate the combustion gas; and a voltage application unit for negatively charging the fuel. The combustion gas particle adhesion prevention boiler, and a method using the same, prevent combustion gas particles generated by the combustion of fuel from being adhered to a tube, the inner wall of a furnace, etc., by applying a negative voltage to the combustion unit, and applying a positive voltage to a dust collector, such that the negatively charged combustion gas particles can be easily collected in the dust collector by the attractive force with the positively charged dust collector.

The present disclosure relates to a method of generating energy. The teachings thereof may be embodied in a method comprising: atomizing an electropositive metal; combusting the metal with a reaction gas; mixing the resulting combustion products with water, or an aqueous solution, or a suspension of a salt of the metal; separating a resulting mixture into (a) solid and liquid constituents and (b) gaseous constituents; at least partly converting energy from the separated constituents. Mixing the combustion products may include: atomizing liquid or gaseous water; or atomizing or nebulizing an aqueous solution or a suspension of a salt of the electropositive metal, into the reacted mixture.

An air pollution control system includes adenitration device that removes nitrogen oxide in flue gas from a boiler; a heat transfer tube for recovering part of heat of the flue gas after denitration; a precipitator that removes soot and dust in the flue gas after heat recovery; a desulfurization device that removes sulfur oxide in the flue gas discharged from the precipitator; a heat transfer tube for heating the flue gas discharged from the desulfurization device; a circulation pump that circulates a heat medium between the heat transfer tubes; a heat medium heater provided to the circulation pipe to heat the heat medium; and a control device that controls the heat medium heater based on an ammonia concentration at an outlet of the denitration device. The control device causes the heat medium heater to heat the heat medium when the ammonia concentration is higher than a certain value.

A method for removing noxious, hazardous, toxic, mutagenic, and/or carcinogenic compounds and/or precursor compounds from a comingled gas, liquid, and/or solid stream is described. In one embodiment, the method is used to prepare the stream for feeding to an oxidizer, such as a thermal oxidizer, to reduce the amount of particulate matter discharged by the oxidizer and includes passing the stream through an ambient or chilled temperature condenser followed by an optional gas/solid separator, and one or more gas scrubbers prior to feeding to the oxidizer.

The present invention relates generally to the field of emission control equipment for boilers, heaters, kilns, or other flue gas-, or combustion gas-, generating devices (e.g., those located at power plants, processing plants, etc.) and, in particular to a new and useful method and apparatus for reducing or preventing the poisoning and/or contamination of an SCR catalyst. In still another embodiment, the present invention relates to a method and apparatus for increasing the service life and/or catalytic activity of an SCR catalyst while simultaneously controlling various emissions. In yet another embodiment, the present invention relates to a method and apparatus for controlling, mitigating and/or reducing the amount of selenium contained in and/or emitted by one or more pieces of emission control equipment for boilers, heaters, kilns, or other flue gas-, or combustion gas-, generating devices (e.g., those located at power plants, processing plants, etc.).

According to embodiments, a co-fired or multiple fuel combustion system is configured to apply an electric field to a combustion region corresponding to a second fuel that normally suffers from poor combustion and/or high sooting. Application of an AC voltage to the combustion region was found to increase the extent of combustion and significantly reduce soot evolved from the second fuel.

A passive and active sampler for airborne particulate sampling (especially particles of biological origin) and a method of using same are disclosed. The sampler includes a sampler base portion of variable size and shape having a longitudinal body and an inner surface. The sampler base portion is configured with a plurality of air channels having variable air channel spacing therethrough the longitudinal body. A plurality of layers of ferroelectric film have a first side and a second side polarized by application of an external electric field such that the first side produces a negative electric field at a first surface and the second side produces a positive electric field at a second surface. The plurality of layers of polarized, ferroelectric film are disposed thereon the longitudinal body with their opposite polarization directions facing each other across a fixed air gap to collect both charged and uncharged particles. The use of such technology as an electrostatic precipitator for active sampling of airborne particulates and a method of using same are further disclosed. This electrostatic precipitator technology can be used for bioaerosol or general particle filtration, as in HVAC systems.

A method for removing noxious, hazardous, toxic, mutagenic, and/or carcinogenic compounds and/or precursor compounds from a comingled gas, liquid, and/or solid stream is described. In one embodiment, the method is used to prepare the stream for feeding to an oxidizer, such as a thermal oxidizer, to reduce the amount of particulate matter discharged by the oxidizer and includes passing the stream through an ambient or chilled temperature condenser followed by an optional gas/solid separator, and one or more gas scrubbers prior to feeding to the oxidizer.

A combined heat exchanger including a flue gas cooler heat-transfer unit supplied with cooling fluid by a supply pump and an upstream GGH heat-transfer unit for circulation of circulating fluid with a downstream GGH by a circulation pump is arranged at an outlet of a gas air heater for heat exchange of flue gas from a boiler body for oxyfuel combustion with recirculation flue gases. A low-low temperature ESP is arranged at an outlet of the combined heat exchanger. A heat-exchange-duty adjustment device is arranged to regulate heats exchanged in the heat-transfer units in the heat exchanger such that at least flue gas temperature at the inlet of the low-low temperature ESP is kept to an inlet set temperature.

An automatic tuning control system and method for controlling air pollution control systems such as a dry flue gas desulfurization system is described. The automatic tuning control system includes one or more PID controls and one or more supervisory MPC controller layers. The supervisory MPC controller layers are operable for control of an air pollution control system and operable for automatic tuning of the air pollution control systems using particle swarm optimization through simulation using one or more dynamic models, and through control system tuning of each of the PID controls, MPC controller layers and an integrated MPC/PID control design.