Production of hydrogen and removal and sequestration of carbon dioxide from coal-fired furnaces and boilers
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United States of America Patent
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Oct 16, 2007
Grant Date -
Oct 14, 2004
app pub date -
Apr 8, 2004
filing date -
Apr 9, 2003
priority date (Note) -
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Abstract
Methods for reducing and eliminating carbon dioxide from the emissions of solid fuel fired power plants, particularly coal fired power plants, and to sequester the carbon dioxide, typically by using existing equipment. In some embodiments, the methods involve pyrolyzing the solid fuel to remove volatile matter and using the volatile matter to produce hydrogen. Additionally, the methods may involve burning the solid fuel or pyrolized solid fuel at very fuel rich stoichiometric conditions. Sequestration may include the production of a carbon dioxide-containing solution and the pumping of the solution into the ground, particularly in areas high in limestone.
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