Abstract: Disclosed is a CO2 concentration reducing device for separating and removing CO2 from a gas containing CO2 with a CO2 adsorbent, the CO2 concentration reducing device including: an adsorbent container which contains the CO2 adsorbent; and a heating unit which heats the CO2 adsorbent by an induction heating or a dielectric heating. Thus, a ventilation quantity can be reduced when CO2 accumulated in a room is removed, and an electric power required for the ventilation and the electric power required for air conditioning can be reduced.

Abstract: Provided is a CO2 recovery device of an internal combustion engine capable of efficiently recovering CO2 emitted from an internal combustion engine or CO2 in the air, and of efficiently synthesizing methane using CO2. A CO2 recovery device of an internal combustion engine includes a CO2 capturing material disposed at a through channel of gas including CO2 to capture CO2 in the gas, and methanation catalyst to let CO2 desorbed from the CO2 capturing material react with H2 obtained from a H2 supply source to generate methane. The CO2 recovery device has a function to raise temperature of the CO2 capturing material using heat generated from the internal combustion engine to desorb CO2.

Abstract: A CO2 removal device includes: a CO2 capturing material which captures H2O and CO2 in a gas; a reaction container which contains the CO2 capturing material; an H2O measuring unit for measuring the concentration of H2O in the gas; an H2O concentration adjustment device which adjusts the concentration of H2O on the basis of information obtained by the H2O measuring unit; a gas introduction path introducing the gas into the reaction container from the H2O concentration adjustment device and bringing the gas into contact with the CO2 capturing material; a first gas discharge path discharging the gas from the reaction container after the gas has been brought into contact with the CO2 capturing material; and a second gas discharge path discharging the gas that has been desorbed from the CO2 capturing material from the reaction container. The CO2 removal device allows for the reduction of energy consumption in removing CO2.

Abstract: In regenerating carbon dioxide capturing material, the amount of regeneration gas supplied to a carbon dioxide recovery column is reduced for higher energy efficiency and shortened regeneration time. A carbon dioxide recovery apparatus includes a carbon dioxide sorbing column, a heating unit, and first, second, and third channels. The carbon dioxide sorbing column contains a carbon dioxide capturing material. The heating unit heats the carbon dioxide capturing material. A carbon-dioxide-containing gas is introduced via the first channel into the carbon dioxide sorbing column. The regeneration gas is introduced via the second channel into the carbon dioxide sorbing column. A gaseous mixture containing a gas desorbed from the carbon dioxide capturing material is recovered via the third channel. The heating unit preheats the carbon dioxide capturing material, and then the regeneration gas is introduced into the carbon dioxide sorbing column to recover carbon dioxide from the carbon dioxide capturing material.

Abstract: Provided is a carbon dioxide capturing material that captures a large amount of carbon dioxide, less suffers from decrease in an amount of the captured carbon dioxide even after firing, and has excellent heat resistance. The carbon dioxide capturing material separates and recovers carbon dioxide from a carbon-dioxide-containing gas. The capturing material includes an oxide containing Ce and Al. The oxide contains Ce in a highest content among metal elements in the oxide and contains Al in a content of 0.01% by mole to 40% by mole.

Abstract: A CO2 separation unit for recovering CO2 from a CO2-containing gas by using a solid CO2 capturing material, in which the amount of used steam is decreased: the unit comprising a capturing material container, a first pipeline for allowing the CO2-containing gas to flow therethrough into the capturing material container, a second pipeline for allowing a gas from which CO2 has been removed to be discharged therethrough, a third pipeline for introducing a steam-containing gas to the inside of the capturing material container, a fourth pipeline for allowing a desorbed CO2-containing gas to be discharged therethrough, wherein the unit further includes a compressor for compressing steam, a fifth pipeline for connecting the capturing material container with a suction port of the compressor, and a sixth pipeline for connecting a discharge port of the compressor with the third pipeline.

Abstract: In a CO2 absorption tower in which a CO2 sorbent is placed, a decrease in CO2 sorption amount due to an increase in temperature in the absorption tower because of the CO2 sorption reaction heat is prevented. In a CO2 capture and separation system, which captures and separates CO2 from a CO2-containing gas, two or more different types of CO2 sorbents are placed in an absorption tower.

Abstract: A CO2 separation unit for recovering CO2 from a CO2-containing gas by using a solid CO2 capturing material, in which the amount of used steam is decreased: the unit comprising a capturing material container (1) having a CO2 capturing material for capturing CO2, a first pipeline (2a) for allowing the CO2-containing gas to flow therethrough into the capturing material container (1), a second pipeline (2b) for allowing a gas from which CO2 has been removed by the CO2 capturing material to be discharged therethrough from the capturing material container (1), a third pipeline (2c) for introducing a steam-containing gas to the inside of the capturing material container (1), a fourth pipeline (2d) for allowing a desorbed CO2-containing gas desorbed from the CO2 capturing material, while the steam-containing gas flows in the container, to be discharged therethrough from the capturing material container (1), wherein the unit further includes a compressor (4a) for compressing steam, a fifth pipeline (2e) for connecting

Abstract: A boiler system including an electric power generation system having a boiler, a steam turbine for generating electric power by steams which received heat at a boiler, a condenser provided at the downstream thereof for condensing the steams, and a heater for heating condensed water by steams extracted from the steam turbine and, further, a CO2 capture system of sorbing and capturing a CO2 gas in an exhausted gas exhausted from the boiler by using a solid CO2 sorbent, and a chimney of exhausting an exhaust gas in the CO2 capture system after recovery of CO2 or an exhaust gas exhausted from the boiler, in which the temperature of a fluid concerned with the boiler system is increased by using the exhaust gas exhausted from the CO2 capture system.

Abstract: A carbon dioxide recovery system is provided, in which, a filling rate of the carbon dioxide sorbent in the container indicated by f [%] is positive and larger than or equal to the value obtained by the following expression of 100×(p/(RT))×(x?C)/(a×(100+x/r?100×x/(rC)?x)+(p/(RT))×(x?C)), with respect to the effective molar quantity of the captured carbon dioxide per 1 L of the carbon dioxide sorbent (=a) of the carbon dioxide sorbent to be used, wherein a demanded concentration of recovered carbon dioxide is indicated by x [%], and an amount of the captured gases other than carbon dioxide is indicated by r, and a concentration of dried carbon dioxide in a carbon dioxide-containing gas is indicated by C [%], and a total pressure of the carbon dioxide sorbent occurring when carbon dioxide is captured is indicated by p [Pa].

Abstract: A boiler system including an electric power generation system having a boiler, a steam turbine for generating electric power by steams which received heat at a boiler, a condenser provided at the downstream thereof for condensing the steams, and a heater for heating condensed water by steams extracted from the steam turbine and, further, a CO2 capture system of sorbing and capturing a CO2 gas in an exhausted gas exhausted from the boiler by using a solid CO2 sorbent, and a chimney of exhausting an exhaust gas in the CO2 capture system after recovery of CO2 or an exhaust gas exhausted from the boiler, in which the temperature of a fluid concerned with the boiler system is increased by using the exhaust gas exhausted from the CO2 capture system.

Abstract: A CO2 sorbent capable of efficiently sorbing carbon dioxide is provided. A CO2 sorbent for sorbing and separating carbon dioxide from a gas containing carbon dioxide contains a Ce oxide and having an average pore size of 60 ? or less.

Abstract: A Cr trapping agent is disposed so that it contacts with constituting components of the substrate containing Cr. As the Cr trapping agent, an element or Ag is used, wherein the element is stronger in basicity than alkali metals or alkaline earth metals. Since the Cr trapping agent prevents transfer of Cr towards the alkali metals or alkaline earth metals, the reaction between Cr and alkali metals or alkaline earth metals is prevented.

Abstract: To provide an image display device including a lower electrode, an upper electrode, and an electron acceleration layer composed of an insulator or a semiconductor provided there between, and further including a thin film electron source array that emits electrons from the upper electrode, and a phosphor surface, wherein degradation of an electron emission characteristic caused by an increase of a work function due to an adhesive material to the above-described upper electrode is suppressed. An amount of S content adhering to the upper electrode is set equal to or less than 20 mol % of a total amount of elements used as the upper electrode in terms of elements by using an element belonging to Group VIII or Group Ib or a laminated film or alloy film thereof as a component of the upper electrode of the thin film electron source.

Abstract: Use of a metallic material containing chromium as a substrate of an exhaust gas purifying catalyst has a problem that the chromium contained in the substrate migrates to a catalytically active component and reacts with the catalytically active component to reduce exhaust gas purification performance. Thus, a film which inhibits the chromium contained in the substrate from migrating is arranged on the substrate's surface. The film is desirably formed by oxidizing a substrate in the air. It is also desirable that a substrate containing aluminum therein be oxidized to cause aluminum contained in the substrate to separate out and thereby form an alpha-alumina film. The film is preferably such that, when the exhaust gas purifying catalyst is heated at 850° C. in the air for 300 hours, the amount of chromium migrated to the catalytically active component is controlled to 0.5 percent by weight or less based on the catalytically active component.

Abstract: A catalyst for use in purifying exhaust gas from an internal combustion engine. The active components of an exhaust gas purification catalyst for an internal combustion engine tend to be melted or softened and then to move outside the carrier, because the components become in contact with exhaust gas at a high temperature. Hence, anchoring materials are provided between carriers in order to suppress the moving of catalytically active components. Anchoring materials 22 do not form compounds with catalytically active components 24, and are selected from substances that do not melt even in contact with exhaust gas at a high temperature. When the active components contain sodium, potassium, cesium, lithium, strontium, barium, noble metals and the like, the best anchoring material is MgO. The anchoring material functions as a barrier that prevents the moving of active components.

Abstract: To provide an image display device including a lower electrode, an upper electrode, and an electron acceleration layer composed of an insulator or a semiconductor provided therebetween, and further including a thin film electron source array that emits electrons from the upper electrode, and a phosphor surface, wherein degradation of an electron emission characteristic caused by an increase of a work function due to an adhesive material to the above-described upper electrode is suppressed. An amount of S content adhering to the upper electrode is set equal to or less than 20 mol % of a total amount of elements used as the upper electrode in terms of elements by using an element belonging to Group VIII or Group Ib or a laminated film or alloy film thereof as a component of the upper electrode of the thin film electron source.

Abstract: An object of the present invention is to provide a new exhaust gas purification apparatus for an internal combustion engine operated under a condition of an air fuel ratio leaner than a theoretical air fuel ratio, a method for purification of exhaust gas and an exhaust gas purification catalyst, which is suitable for suppressing degradation of the NOx purification catalyst by sulfur components.

Abstract: A Cr trapping agent is disposed so that it contacts with constituting components of the substrate containing Cr. As the Cr trapping agent, an element or Ag is used, wherein the element is stronger in basicity than alkali metals or alkaline earth metals. Since the Cr trapping agent prevents transfer of Cr towards the alkali metals or alkaline earth metals, the reaction between Cr and alkali metals or alkaline earth metals is prevented.

Abstract: An apparatus for purifying an exhaust gas of a diesel engine, characterized in that it has an NOx adsorption and reduction type catalyst and a diesel particulate filter for oxidizing and removing particulate matters in the exhaust gas, which are provided in the flow route for the exhaust gas and are arranged in the above described order from the upstream of the flow of the exhaust gas. The above arrangement allows the elevation of the temperature of the catalyst with ease and the precise control of the temperature and atmosphere therein, resulting in the achievement of satisfactory NOx purification performance, and the employment of the NOx adsorption and reduction type catalyst allows the enhancement of the rate of reduction of the NO2 captured, which shortens the time to keep a stoichiometric-rich atmosphere to a time of several seconds to several minutes.