Patent application number | Description | Published |
20100170396 | CO2 OR H2S REDUCING SYSTEM AND METHOD OF REDUCING CO2 OR H2S | 07-08-2010 |
20100180764 | ABSORBENT, CO2 OR H2S REDUCING APPARATUS, AND CO2 OR H2S REDUCING METHOD USING ABSORBENT - An absorbent according to the present invention absorbs CO | 07-22-2010 |
20100242864 | EXHAUST GAS PURIFICATION SYSTEM AND EXHAUST GAS PURIFICATION METHOD - An exhaust gas purification system, which upgrades exhaust gas purification while curtailing an increase in an operating cost, is disclosed. The exhaust gas purification system comprises an SCR catalyst for reducing and removing nitrogen oxides in an exhaust gas from an engine ( | 09-30-2010 |
20100282081 | ABSORBENT LIQUID, AND APPARATUS AND METHOD FOR REMOVING C02 OR H2S FROM GAS WITH USE OF ABSORBENT LIQUID - An absorbent liquid according to the present invention is an absorbent liquid for absorbing CO | 11-11-2010 |
20100287911 | EXHAUST GAS PURIFICATION SYSTEM AND EXHAUST GAS PURIFICATION METHOD - An exhaust gas purification system which, in a wider temperature range, can reduce and remove nitrogen oxides in an exhaust gas by a reduction catalyst with the use of hydrogen as a reducing agent is provided. The exhaust gas purification system has an electronic control device ( | 11-18-2010 |
20110019193 | METHOD AND APPARATUS FOR MEASURING DENSITY - Disclosed are method and apparatus for measuring density, that can simultaneously measure gaseous substance density and solid particulate material density and further can simultaneously measure the densities of a plurality of materials such as black smoke, white smoke, and water vapor in the solid particulate material in a simple and reliable manner. The method for measuring density comprises applying a laser beam having an absorption wavelength inherent in a gaseous material contained in an object to be measured, to the object to detect a light transmittance and a light absorption amount and detecting the density of gaseous materials in the object and the density of solid particulate materials in the object. The relationship between the density of a plurality of kinds of solid particulate materials including black smoke and white smoke and a laser beam attenuation level in each absorption wavelength is preset. Laser beams having a plurality of respective absorption wavelengths are applied to the gaseous substance to be measured. The attenuation levels of the applied laser beams having the plurality of absorption wavelengths are measured. The measured attenuation levels are compared with the attenuation levels calculated based on the present relationship to calculate the densities of the plurality of kinds of solid particulate materials. | 01-27-2011 |
20110029261 | FLUID MEASUREMENT DEVICE AND FLUID MEASUREMENT METHOD - Provided is a fluid measurement device and the like for measuring flow velocity of a fluid in detail. A fluid measurement device ( | 02-03-2011 |
20110106397 | FLUID MEASURING DEVICE - Provided is a fluid measuring device for measuring flow speed of a fluid in detail. A fluid measuring device ( | 05-05-2011 |
20110239629 | FLUE GAS PURIFYING DEVICE - An object of the present invention is to provide a flue gas purifying device that can suppress leakage of ammonia and can efficiently decrease nitrogen oxides in flue gas. The object is achieved by a flue gas purifying device including: an exhaust pipe; a urea-water injecting unit that injects urea water into the exhaust pipe; a catalytic unit that includes a urea SCR catalyst that promotes a reaction between ammonia and nitrogen oxides and a support mechanism that supports the urea SCR catalyst in the exhaust pipe, and is arranged on a downstream side to a position where urea water is injected; a concentration measuring unit arranged on a downstream side to the catalytic unit in a flow direction of flue gas to measure an ammonia concentration in flue gas having passed through the urea SCR catalyst; and a control unit that controls injection of urea water by the urea-water injecting unit based on an ammonia concentration measured by the concentration measuring unit. | 10-06-2011 |
20110252771 | FLUE GAS PURIFYING DEVICE - An object of the present invention is to provide a flue gas purifying device that can suppress leakage of ammonia and can efficiently decrease nitrogen oxides in flue gas. The object is achieved by including: an exhaust pipe that guides flue gas discharged from an internal combustion engine; a urea-water injecting unit that injects urea water into the exhaust pipe; a catalyst unit that includes a urea SCR catalyst that promotes a reaction between ammonia produced from injected urea water and nitrogen oxides and a support mechanism arranged inside of the exhaust pipe on a downstream side to a position where urea water is injected in a flow direction of the flue gas to support the urea SCR catalyst; an ammonia-concentration measuring unit that measures an ammonia concentration in flue gas at a measurement position in a region where the SCR catalyst is arranged; and an injection control unit that controls injection of urea water based on a measurement result acquired by the ammonia-concentration measuring unit. | 10-20-2011 |
20110293483 | FLUE GAS PURIFYING DEVICE - An object of the present invention is to provide a flue gas purifying device that can efficiently decrease nitrogen oxides in flue gas. This object is solved by including: an exhaust pipe that guides flue gas discharged from a burning appliance; a urea-water injecting unit that injects urea water into the exhaust pipe; a catalytic unit arranged on a downstream side to a position where urea water is injected in a flow direction of flue gas and having a urea SCR catalyst; a first ammonia-concentration measuring unit that measures a concentration of ammonia in flue gas at a measurement position in a region where the catalytic unit is arranged; a second ammonia-concentration measuring unit arranged on a downstream side to the catalytic unit in a flow direction of the flue gas, to measure a concentration of ammonia in the flue gas having passed through the urea SCR catalyst; and a control unit that controls injection of urea water by the urea-water injecting unit based on measurement results acquired by the first and second ammonia-concentration measuring units. | 12-01-2011 |
20140056792 | ABSORBENT, CO2 OR H2S REDUCING APPARATUS, AND CO2 OR H2S REDUCING METHOD USING ABSORBENT - An absorbent according to the present invention absorbs CO | 02-27-2014 |