Abstract: The present invention relates to an operation control method for a gasification power generation system for gasifying carbon-based fuel such as coal in a gasifier using oxygen or oxygen-enriched air as an oxidizing agent, burning the obtained syngas as fuel in a gas turbine, driving the gas turbine by the syngas, driving a steam turbine by steam generated using exhaust heat of the gas turbine, thus executing combined power generation.

Abstract: The present invention makes it possible, in a plant such as a thermal power plant, to prevent the corrosion of a piping member or a device such as a boiler by effectively decomposing nitrogen monoxide (NO) included in waste water or condensate water and inhibiting the generation of nitrous acid (HNO2). The present invention is a piping member used in a feed water system or a waste water system of a plant, and characterized by coating an inner wall of the piping member with a catalyst accelerating decomposition of nitrogen monoxide.

Abstract: The present invention relates to an operation control method for a gasification power generation system for gasifying carbon-based fuel such as coal in a gasifier using oxygen or oxygen-enriched air as an oxidizing agent, burning the obtained syngas as fuel in a gas turbine, driving the gas turbine by the syngas, driving a steam turbine by steam generated using exhaust heat of the gas turbine, thus executing combined power generation.

Abstract: A gasification power generation system provided with a carbon dioxide separation and recovery device is disclosed. The system includes a carbon dioxide separation and recovery device having a shift reactor to convert carbon monoxide contained in fuel gas into carbon dioxide by mixing steam into the fuel gas containing carbon monoxide and hydrogen to cause a shift reaction; a carbon dioxide absorption tower to produce fuel gas from which carbon dioxide has been removed by allowing an absorption liquid to absorb carbon dioxide from the fuel gas containing carbon dioxide flowing down the shift reactor; an absorption liquid recycling device to recycle an absorption liquid by separating carbon dioxide absorbed by the absorption liquid in the carbon dioxide absorption tower; and a gasification power generation system.

Abstract: A high humidity gas turbine equipment includes a turbine; a compressor; a humidifier, which brings the air compressed by the compressor into contact with feed water to humidify the air; a regenerative heat exchanger, which causes the air humidified by the humidifier to be heated by exhaust gas from the turbine; a combustor, which burns the air heated by the regenerative heat exchanger and fuel to generate the combustion gas; a deaerating equipment including a deaerating section, a water storage tank, and a steam generating section, which causes feed water and makeup water in the water storage tank to be heated by exhaust gas from the turbine to evaporate and supplies the steam to the deaerating section; and a feed water supply pipe, through which the feed water and the makeup water in the water storage tank are supplied to the humidifier.

Abstract: A gasification power generation system provided with a carbon dioxide separation and recovery device is disclosed. The system includes a carbon dioxide separation and recovery device having a shift reactor to convert carbon monoxide contained in fuel gas into carbon dioxide by mixing steam into the fuel gas containing carbon monoxide and hydrogen to cause a shift reaction; a carbon dioxide absorption tower to produce fuel gas from which carbon dioxide has been removed by allowing an absorption liquid to absorb carbon dioxide from the fuel gas containing carbon dioxide flowing down the shift reactor; an absorption liquid recycling device to recycle an absorption liquid by separating carbon dioxide absorbed by the absorption liquid in the carbon dioxide absorption tower; and a gasification power generation system.

Abstract: A high humidity gas turbine equipment includes a turbine; a compressor; a humidifier, which brings the air compressed by the compressor into contact with feed water to humidify the air; a regenerative heat exchanger, which causes the air humidified by the humidifier to be heated by exhaust gas from the turbine; a combustor, which burns the air heated by the regenerative heat exchanger and fuel to generate the combustion gas; a deaerating equipment including a deaerating section, a water storage tank, and a steam generating section, which causes feed water and makeup water in the water storage tank to be heated by exhaust gas from the turbine to evaporate and supplies the steam to the deaerating section; and a feed water supply pipe, through which the feed water and the makeup water in the water storage tank are supplied to the humidifier.