Electrical generator or motor structure – Dynamoelectric – Conducting fluid
Patent
1989-10-30
1991-10-08
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Conducting fluid
H02K 4408
Patent
active
050557246
ABSTRACT:
A method of converting the chemical energy of fossil fuel to electrical and mechanical energy with a MHD generator. The fossil fuel is mixed with preheated oxygen and carbon dioxide and a conducting seed of potassium carbonate to form a combustive and electrically conductive mixture which is burned in a combustion chamber. The burned combustion mixture is passed through a MHD generator to generate electrical energy. The burned combustion mixture is passed through a diffuser to restore the mixture approximately to atmospheric pressure, leaving a spent combustion mixture which is used to heat oxygen from an air separation plant and recycled carbon dioxide for combustion in a high temperature oxygen preheater and for heating water/steam for producing superheated steam. Relatively pure carbon dioxide is separated from the spent combustion mixture for further purification or for exhaust, while the remainder of the carbon dioxide is recycled from the spent combustion mixture to a carbon dioxide purification plant for removal of water and any nitrous oxides present, leaving a greater than 98% pure carbon dioxide. A portion of the greater then 98% pure carbon dioxide stream is recovered and the remainder is recycled to combine with the oxygen for preheating and combination with the fossil fuel to form a combustion mixture.
REFERENCES:
patent: 3895243 (1975-07-01), Amend et al.
patent: 4107557 (1978-08-01), Shepherd
patent: 4345173 (1982-08-01), Marchant et al.
patent: 4718361 (1988-01-01), Berry
U.S. Sir No. H410 to Berry et al. issued 1/1988.
ANL/EES-TM-365, "An Open-Cycle Magnetohydrodynamic Power Plant with CO.sub.2 Recycling" by Greg Berry, Feb., 1989.
Fisher Robert J.
Glenn Hugh W.
Jones Judson H.
Moser William R.
Stephan Steven L.
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