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A power plant integrated with coal gasification includes an oxygen plant for separating oxygen from air and a coal gasification plant for producing a combustible gas by reaction of coal with a gasifying agent containing at least oxygen as an effective component. The combustible gas is supplied as a

A power plant integrated with coal gasification includes an oxygen plant for separating oxygen from air and a coal gasification plant for producing a combustible gas by reaction of coal with a gasifying agent containing at least oxygen as an effective component. The combustible gas is supplied as a fuel to a gas turbine, and a portion of compressed air is bled from an air compressor for gas turbine at the outlet or at the intermediate stage of the air compressor, and divided into two portions, one of which is supplied as feed air to the oxygen plant, thus eliminating the need for a feed air compressor, and another of which is mixed with the oxygen from the oxygen plant to prepare oxygen-enriched air, which is supplied to the coal gasification plant, thus reducing the capacity of the oxygen plant.

대표청구항 ▼

A power plant comprising a coal gasification plant means for producing a combustible gas by reaction of coal with a gasifying agent containing at least oxygen as an effective component, an oxygen plant means for separating oxygen from air and for supplying the gasifying agent containing separate oxy

A power plant comprising a coal gasification plant means for producing a combustible gas by reaction of coal with a gasifying agent containing at least oxygen as an effective component, an oxygen plant means for separating oxygen from air and for supplying the gasifying agent containing separate oxygen to the coal gasification plant means, a gas turbine plant means including a gas turbine means adapted to be driven by the combustible gas from the coal gasification plant means, an air compressor means for supplying compressed air to the gas turbine means, means for bleeding a portion of compressed air from said air compressor means, means for supplying a portion of the compressed bled air as feed air to the oxygen plant means, and an air dilution supply means for supplying another portion of the bled compressed air as dilution air to a gasification agent supply means for supplying the gasification agent to the gasification plant means, including a further air compressor means for elevating the pressure of the portion of the bled compressed air supplied as dilution air, and heat exchanger means for cooling the air compressed by said further air compressor means.