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Title: Open-cycle magnetohydrodynamic power plant with CO.sub.2 recycling

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 combinationmore » with the fossil fuel to form a combustion mixture.« less

Inventors:
 [1]
  1. (Naperville, IL)
Issue Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
868017
Patent Number(s):
5055724
Assignee:
United States Department of Energy (Washington, DC) ANL
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
open-cycle; magnetohydrodynamic; power; plant; recycling; method; converting; chemical; energy; fossil; fuel; electrical; mechanical; mhd; generator; mixed; preheated; oxygen; carbon; dioxide; conducting; seed; potassium; carbonate; form; combustive; electrically; conductive; mixture; burned; combustion; chamber; passed; generate; diffuser; restore; approximately; atmospheric; pressure; leaving; spent; heat; air; separation; recycled; temperature; preheater; heating; water; steam; producing; superheated; relatively; pure; separated; purification; exhaust; remainder; removal; nitrous; oxides; 98; portion; stream; recovered; combine; preheating; combination; potassium carbonate; magnetohydrodynamic power; pure carbon; relatively pure; superheated steam; chemical energy; electrical energy; carbon dioxide; combustion chamber; electrically conductive; power plant; atmospheric pressure; mhd generator; air separation; fossil fuel; mechanical energy; nitrous oxide; temperature oxygen; nitrous oxides; open-cycle magnetohydrodynamic; heated steam; heating water; generate electric; /310/

Citation Formats

Berry, Gregory F. Open-cycle magnetohydrodynamic power plant with CO.sub.2 recycling. United States: N. p., 1991. Web.
Berry, Gregory F. Open-cycle magnetohydrodynamic power plant with CO.sub.2 recycling. United States.
Berry, Gregory F. Tue . "Open-cycle magnetohydrodynamic power plant with CO.sub.2 recycling". United States. https://www.osti.gov/servlets/purl/868017.
@article{osti_868017,
title = {Open-cycle magnetohydrodynamic power plant with CO.sub.2 recycling},
author = {Berry, Gregory F.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1991},
month = {1}
}

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