Method for repowering existing electric power plant

Details Method for repowering existing electric power plant Method for repowering existing electric power plant

1990-05-22

1991-11-12

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

60 3912, 60 39182, F02G 300, F02C 604

Patent

active

050637320

ABSTRACT:
A method for the repowering of an existing coal-fired facility used in the generation of electric power which makes the facility more efficient while reducing its emissions in a cost-effective manner using the following steps: a) processing the coal in use to co-produce a clean liquid fuel and a clean low Btu gas; b) replacing the pulverized coal burners of the boiler contained in the facility with burners adapted to burn low-Btu gas; c) burning clean low-Btu gas in the boiler instead of coal; d) making up the derate of the boiler by the addition of efficient combined cycle power generation; and e) crediting the revenue derived from the sale of the liquid fuel co-produced to the existing facility to render such repowering commercially viable.

REFERENCES:
patent: 2634198 (1953-04-01), Kalbach
patent: 2992065 (1961-07-01), Feustel
patent: 4261167 (1981-04-01), Paull et al.
patent: 4608818 (1986-09-01), Goebel et al.
patent: 4665688 (1987-05-01), Schiffers et al.
patent: 4729217 (1988-03-01), Kehlhofer
patent: 4852996 (1989-08-01), Knop

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