초록 ▼

In an integrated coal gasification power plant, a humidifier is provided for transferring as vapor, from the aqueous blowdown liquid into relatively dry air, both (I) at least a portion of the water contained in the aqueous liquid and (II) at least a portion of the volatile hydrocarbons therein. The

In an integrated coal gasification power plant, a humidifier is provided for transferring as vapor, from the aqueous blowdown liquid into relatively dry air, both (I) at least a portion of the water contained in the aqueous liquid and (II) at least a portion of the volatile hydrocarbons therein. The resulting humidified air is advantageously employed as at least a portion of the hot air and water vapor included in the blast gas supplied via a boost compressor to the gasifier.

대표청구항 ▼

In an integrated coal gasification power plant comprising, in combination: (a) a coal gasifier for producing a raw gaseous fuel by pressure gasification of coal with pressurized air and water vapor; (b) means for pressurizing hot air and water vapor and for supplying the pressurized air and water va

In an integrated coal gasification power plant comprising, in combination: (a) a coal gasifier for producing a raw gaseous fuel by pressure gasification of coal with pressurized air and water vapor; (b) means for pressurizing hot air and water vapor and for supplying the pressurized air and water vapor to said gasifier as blast gas therefor; (c) a gas clean-up system adapted to (I) remove from said raw gaseous fuel at least a portion of any contaminants present therein and (II) produce (i) an aqueous blowdown liquid containing volatile hydrocarbons and (ii) a cleaned-up gaseous fuel; (d) a combustor for combustion of said cleaned-up gaseous fuel to produce a hot expansible gaseous combustion product; (e) means for pressurizing air and for supplying the pressurized air to said combustor; (f) means for supplying said cleaned-up gaseous fuel to said combustor; and (g) means operable by the combustion product for generating electric power; the improvement comprising, in further combination with the above: (h) means for transferring as vapor, from said blowdown liquid into relatively dry air, both (I) at least a portion of the water contained in said aqueous liquid and (II) at least a portion of the Volatile hydrocarbons contained in said liquid to provide at least a portion of the hot air and water vapor supplied to said pressurizing means set forth in (b) above, whereby said blast gas supplied to said gasifier comprises as components thereof both (III) recovered water and (IV) recovered volatile hydrocarbons, said recovered components having been recovered from said blowdown liquid.