Patent application number | Description | Published |
20090004085 | Method and System for Removing Mercury from Flue Gas - A biomass feeding unit feeds biomass to a boiler. A hydrogen-chlorine monitoring unit measures hydrogen-chloride content in flue gas fed to a desulfurization equipment. A mercury monitoring unit measures mercury content in treated flue gas emitted from the desulfurization equipment. A feed-amount instruction unit instructs proper feed amount of the biomass to the biomass feeding unit based on measurement values obtained by the hydrogen-chlorine monitoring unit and the mercury monitoring unit. | 01-01-2009 |
20090269241 | Method for removing mercury in exhaust gas and system therefor - The present invention provides a method for removing mercury in exhaust gas, in which mercury in exhaust gas discharged from combustion equipment is removed, characterized by including a mercury oxidation process in which mercury in the exhaust gas is converted to mercury chloride in the presence of a catalyst; a contact process in which the exhaust gas is brought into contact with an absorbing solution in a scrubber to absorb and remove mercury components from the exhaust gas; and a control process in which blowing of air or addition of an oxidizing agent into the scrubber is accomplished, and the amount of blown air or the added amount of oxidizing agent is regulated to control the oxidation-reduction potential of the absorbing agent, and a system for removing mercury in exhaust gas. According to the mercury removing method in accordance with the present invention, a phenomenon that mercury chloride is reduced into metallic mercury by SO | 10-29-2009 |
20100074818 | AIR POLLUTION CONTROL APPARATUS AND AIR POLLUTION CONTROL METHOD - An air pollution control apparatus according to the present invention reduces nitrogen oxides and oxidizes mercury in flue gas | 03-25-2010 |
20100284878 | AIR POLLUTION CONTROL SYSTEM AND METHOD FOR COAL COMBUSTION BOILER - An air pollution control system for a coal combustion boiler according to the present invention includes: a NOx removing apparatus ( | 11-11-2010 |
20110044872 | FLUE GAS CONTROL SYSTEM OF COAL COMBUSTION BOILER AND OPERATING METHOD THEREOF - A flue gas control system of a coal combustion boiler according to the present invention includes: an HCI atomizer ( | 02-24-2011 |
20110052470 | AIR POLLUTION CONTROL SYSTEM AND METHOD FOR COAL COMBUSTION BOILER - An air pollution control system for a coal combustion boiler according to the present invention includes: a NOx removing apparatus ( | 03-03-2011 |
20110162345 | METHOD AND APPARATUS FOR TREATING EXHAUST GAS - In an exhaust gas treatment, the amount of a highly corrosive mercury-halogenating agent to be added is reduced with the mercury-removing efficiency maintained high. | 07-07-2011 |
Patent application number | Description | Published |
20130255502 | EXHAUST GAS TREATMENT SYSTEM - There is provided an exhaust gas treatment system including a CO | 10-03-2013 |
20140041523 | EXHAUST GAS TREATMENT SYSTEM - There is provided an exhaust gas treatment system including a CO | 02-13-2014 |
20140042363 | CARBON DIOXIDE RECOVERY APPARATUS AND METHOD - An apparatus for separating and recovering CO | 02-13-2014 |
20140060459 | HEAT RECOVERY SYSTEM AND HEAT RECOVERY METHOD - A heat recovery system includes a preheater ( | 03-06-2014 |
20140069306 | COAL FIRED BOILER PLANT AND COAL DRYING METHOD FOR COAL FIRED BOILER PLANT - Coal is properly dried and the efficiency of a boiler is increased while suppressing any reduction in efficiency of the boiler and the generation of hydrocarbon gas components. Employed are a coal dryer that dries coal, a boiler in which the coal that is dried in the coal dryer is mixed with air for combustion and burned, an air heater that heats the air for combustion that is supplied to the boiler using combustion exhaust gas discharged from the boiler, a precipitator that collects dust included in the combustion exhaust gas, a desulfurization plant that performs a desulfurization process on the combustion exhaust gas, and heat recovery equipment that heats a heating medium using the combustion exhaust gas. The coal dryer dries the coal using the heat energy of the heating medium that has been heated in the heat recovery equipment. | 03-13-2014 |
20140072483 | DESULFURIZATION DEVICE AND PARTICULATE COLLECTION SYSTEM - A desulfurization apparatus includes: a desulfurization section ( | 03-13-2014 |
20140079615 | EXHAUST GAS TREATMENT SYSTEM AND A METHOD OF TREATING EXHAUST GAS - A flue gas treatment system and a flue gas treatment method capable of drastically reducing operating cost and an amount of waste water and capable of controlling an amount of a NOx reducing agent and a mercury oxidation agent to be supplied are provided. The flue gas treatment system sprays an aqueous solution containing ammonium halide into a flue, reduces NOx and oxidizes mercury in a deNOx section, and removes SOx and the mercury in a desulfurization section. The flue gas treatment system adds at least one of ammonium sulfate and ammonium carbonate to waste water which is discharged from the desulfurization section and from which CaSO | 03-20-2014 |