An integrated comprehensive adjustment method for a pulverized coal boiler based on high-temperature corrosion prevention and control of water wall is provided. The method includes: during shutdown period of the boiler, mounting reducing atmosphere sampling pipe on a water-cooled wall region; carrying out a diagnostic test on the boiler; carrying out an optimization and adjustment test of a boiler pulverizing system; carrying out a single-factor adjustment test of boiler-related parameters; determining degrees of influence of different parameters on water wall reducing atmosphere, thermal efficiency of the boiler and NO.sub.x concentration at a denitration inlet; carrying out an optimization test of ammonia spraying of a denitration system; carrying out a maximum safe denitration efficiency test; and finding a balance point among the water wall reducing atmosphere, the thermal efficiency of the boiler and the NO.sub.x concentration at the denitration inlet.

A process for reducing the CO.sub.2 and other pollutants produced by the combustion of a fuel in a combustion chamber while maintaining or increasing the efficiency of said combustion includes feeding to the combustion chamber, or preconditioning the combustion chamber, with a catalyst, preferably a lithium based salt. Monitoring the energy output and components of the exhaust gas stream to maintain optimum operation allows reduction, during the process, of the catalyst delivery and feed air. The presence of the catalyst results in increased efficiency of operation and reduction of pollutants generated.

Safety devices prevent packaged catalytic converters from being expelled from stacks, or at least reduce the velocity with which such a package may be expelled, in case of an explosion in a bio-fueled appliance, such as a wood-burning stove.

The present invention relates to a method of producing porous alpha-SiC containing shaped body and porous alpha-SiC containing shaped body produced by that method. The porous alpha-SiC containing shaped body shows a characteristic microstructure providing a high degree of mechanical stability.

A method of firing a biofuel is provided. The method includes: introducing the biofuel into a combustion chamber having a first stage and a second stage; combusting the biofuel in a suspended state while flowing from the first stage to the second stage; and introducing a first air stream and a second air stream into the combustion chamber at the first stage and at the second stage, respectively, to facilitate combustion of the biofuel.

A heat recovery steam generator includes a gas inlet for receiving a flow of exhaust gas from a gas turbine, a gas outlet opposite the gas inlet and configured to transport the flow of exhaust gas to atmosphere, and a sorbent injection device intermediate the gas inlet and the gas outlet, the sorbent injection device including at least one injection port configured to inject a sorbent into the flow of exhaust gas. The sorbent is configured to react with an acid gas within the flow of exhaust gas to neutralize the acid gas and inhibit the formation of salt deposits.

The invention relates to a method for separating mercury (Hg) from furnace gases of combustion plants, wherein a catalytically active material having a mean grain diameter <35 ?m is metered into the furnace gas, the elemental mercury in the furnace gases is oxidized, and resulting oxidized mercury is separated in the process using adsorption and absorption techniques in preexisting plant technology. The intensified formation of oxidized mercury is performed within a temperature range <500? C.

A combustion chamber assembly unit for a fuel-operated vehicle heater is provided. The combustion chamber assembly includes a combustion chamber housing (12) with a combustion chamber (18), which is defined by a circumferential wall (14) and by a bottom area (16). An oxidation catalytic converter device (54), through which combustion waste gases can flow, is provided downstream in relation to the combustion chamber (18). The combustion chamber assembly further includes a hydrocarbon storage device (74) or/and a nitrogen storage device (76).

A limestone supply device is provided for supplying calcium carbonate to an upstream of a desulfurization device and a heat exchanger disposed on an upstream of the desulfurization device on a flue gas duct through which flue gas discharged from a combustion engine in which a fuel burns flows. An air pollution control system having the limestone supply device is provided, including a calcium carbonate accumulate unit configured to accumulate calcium carbonate, a calcium carbonate transport unit configured to transport the calcium carbonate accumulated in the calcium carbonate accumulate unit, a calcium carbonate supply unit configured to supply the calcium carbonate transported by the calcium carbonate transport unit to the flue gas duct, and a moisture supply unit configured to supply moisture to a region to which the calcium carbonate is supplied by the calcium carbonate supply unit.

A system includes an emissions control system. The emissions control system includes a processor programmed to receive one or more selective catalytic reduction (SCR) operating conditions for an SCR system. The SCR system is included in an aftertreatment system for an exhaust stream. The processor is also programmed to receive one or more gas turbine operating conditions for a gas turbine engine. The gas turbine engine is configured to direct the exhaust stream into the aftertreatment system. The processor is further programmed to derive a NH.sub.3 flow to the SCR system based on an SCR model and the one or more SCR operating conditions, to derive a NO/NOx ratio, and to derive a fuel split for the gas turbine engine based on the NH.sub.3 flow, the NO/NOx ratio, or a combination thereof.