摘要:
A system for treating mercury in flue gas is provided. The system includes a mercury adsorbent supply device to adsorb the mercury with the mercury adsorbent; a precipitator to collect the mercury adsorbent with adsorbed mercury and soot in the flue gas; a mercury adsorption assistant supply device to remove mercury remaining in the flue gas; and a desulfurization device to remove sulfur oxide (SOx) in the flue gas.
摘要:
To include a boiler 11 that burns fuel F, an air heater 13 that recovers heat of flue gas 18 from the boiler 11, a first precipitator 14 that reduces dust in the flue gas 18 after heat recovery, a desulfurizer 15 that reduces sulfur oxides in the flue gas 18 after dust reduction by an absorbent, a dewaterer 32 that reduces gypsum 31 from desulfurization discharged water 30 discharged from the desulfurizer 15, a spray drying device 34 including an atomizer that atomizes a dewatering filtration fluid 33 discharged from the dewaterer 32, and a flue-gas introducing line L11 that introduces a part of the flue gas 18 into the spray drying device 34.
摘要:
A gas analysis device according to the present invention includes a flue-gas extraction pipe for extracting flue gas from a flue gas duct to which flue gas including both of NH4Cl and SO3 is fed, a collector that is provided in the flue-gas extraction pipe, for removing soot dust contained in the extracted flue gas, a roll filter that is provided in the flue-gas extraction pipe, for depositing both of NH4Cl and SO3 contained in the flue gas, and a measurement device for measuring both of NH4Cl and SO3 contained in the flue gas by irradiating a sample including both of NH4Cl and SO3 deposited by the roll filter with X-rays and detecting fluorescent X-rays generated from the sample.
摘要:
A system for removing Hg contained in flue gas from a boiler, the system includes: a heat exchanger for performing heat exchange of the flue gas from the boiler; a precipitator for removing soot and dust in the flue gas; a wet desulfurization device for removing mercury oxide Hg2+ in the flue gas using an alkali absorbent; and; a removal assistant supply unit for supplying a removal assistant for removing impurities into a limestone and gypsum slurry that circulates through the wet desulfurization device.
摘要:
A gas analysis device according to the present invention includes a flue-gas extraction pipe for extracting flue gas from a flue gas duct to which flue gas including both of NH4Cl and SO3 is fed, a collector that is provided in the flue-gas extraction pipe, for removing soot dust contained in the extracted flue gas, a roll filter that is provided in the flue-gas extraction pipe, for depositing both of NH4Cl and SO3 contained in the flue gas, and a measurement device for measuring both of NH4Cl and SO3 contained in the flue gas by irradiating a sample including both of NH4Cl and SO3 deposited by the roll filter with X-rays and detecting fluorescent X-rays generated from the sample.
摘要:
To include a boiler 11 that burns fuel F, an air heater 13 that recovers heat of flue gas 18 from the boiler 11, a first precipitator 14 that reduces dust in the flue gas 18 after heat recovery, a desulfurizer 15 that reduces sulfur oxides in the flue gas 18 after dust reduction by an absorbent, a dewaterer 32 that reduces gypsum 31 from desulfurization discharged water 30 discharged from the desulfurizer 15, a spray drying device 34 including an atomizer that atomizes a dewatering filtration fluid 33 discharged from the dewaterer 32, and a flue-gas introducing line L11 that introduces a part of the flue gas 18 into the spray drying device 34.
摘要:
An air pollution control system comprises: a carry-in tank truck that carries in a feedstock, i.e., concentrated hydrochloric acid (35% hydrochloric acid); a hydrogen chloride vaporizer that vaporizes the concentrated hydrochloric acid to obtain hydrogen chloride; a liquid level regulator that separates residual hydrogen chloride from extracted dilute hydrochloric acid discharged as a by-product from the hydrogen chloride vaporizer, and that regulates the liquid level of the hydrogen chloride vaporizer; a concentration regulating tank that regulates the hydrochloric acid concentration of extracted dilute hydrochloric acid 25B from which the residual hydrogen chloride has been separated to a predetermined concentration (e.g., 22%); a by-product tank that stores therein dilute hydrochloric acid regulated to have a predetermined concentration; and a carry-out tank truck that carries out the dilute hydrochloric acid with a predetermined concentration discharged from the by-product tank.
摘要:
A mercury reduction system according to the present embodiment is a mercury reduction system that reduces NOx and Hg in flue gas discharged from a boiler, and includes a chemical supplying unit that mixes an NH4Cl solution, an NH3 solution, and an HCl solution in liquid states, and supplies a mixed solution into a flue provided downstream of the boiler, a reduction denitration apparatus that includes a denitration catalyst reducing NOx in the flue gas with NH3 and oxidizing Hg in the presence of HCl, and a wet desulfurization apparatus that reduces Hg oxidized in the reduction denitration apparatus with limestone-gypsum slurry.
摘要:
An alcohol production system that produces alcohol by alcoholic fermentation using a saccharide solution, including an alcoholic fermentation vessel in which the saccharide solution is fermented by adding yeast to produce alcohol, which is an organic feedstock, and a biomass-hydrothermally-treated-product adding means that adds a biomass hydrothermally-treated product obtained by hydrothermally treating a biomass feedstock to the alcoholic fermentation vessel. The alcohol production system can improve alcoholic fermentation efficiency and realize cost reduction without adding only a mineral salt from outside.
摘要:
A spray drying apparatus includes a gas inlet provided on a side wall in the vicinity of a top portion of the spray drying apparatus, for introducing a flue gas for drying a spray liquid of a dehydration filtrate; a rectifying plate provided in a spray drying apparatus main body, for decelerating the introduced flue gas so as to alter the flue gas flow to a laminar flow; a spray nozzle for spraying the dehydration filtrate emitted from the desulfurization waste water into the flue gas altered to the laminar flow; a gas outlet provided in the vicinity of a bottom portion of the spray drying apparatus main body, for discharging the flue gas contributed to drying of the dehydration filtrate; and a discharge hopper provided on the bottom portion side of the spray drying apparatus main body, for discharging an ash as a spray-dried solid.