Power generation process

Details Power generation process Power generation process

1992-12-24

1993-10-12

Kratz, Peter

Power plants

Combustion products used as motive fluid

48197R, 60 3902, F02B 4312, F02C 328, F02C 330

Patent

active

052514331

ABSTRACT:
Hot raw fuel gas is produced by the partial oxidation of liquid or gaseous hydrocarbonaceous fuel or an aqueous slurry of solid carbonaceous fuel with substantially pure oxygen. The raw fuel gas is cleaned, cooled in a plurality of indirect heat exchangers, and purified to produce clean sulfur-free fuel gas. Water is the coolant in one of said indirect heat exchangers and is thereby heated. Dry nitrogen gas is humidified with the warm water and the humidified nitrogen gas is separately introduced into the combustor of a combustion turbine. The clean sulfur-free fuel gas is passed in indirect heat exchange with the raw fuel gas, expanded to reduce its temperature and pressure, and separately introduced into the combustor where it is burned with air while in the presence of the water humidified nitrogen gas. Flue gas containing water humidified nitrogen gas and a substantially reduced amount of NO.sub.x gases is produced and passed through a power-producing expansion turbine as the working fluid. Increased power and efficiency are thereby obtained without polluting the atmosphere.

REFERENCES:
patent: 3866411 (1975-02-01), Marian et al.
patent: 4019314 (1977-04-01), Springmann
patent: 4075831 (1978-02-01), McGarin
patent: 4261167 (1981-04-01), Paull et al.
patent: 4697413 (1987-10-01), Pohl
patent: 5117623 (1992-06-01), Arumdale

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