Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Sulfur or sulfur containing component
Reexamination Certificate
2009-03-27
2010-12-21
Vanoy, Timothy C (Department: 1793)
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Sulfur or sulfur containing component
C423S243080, C423S244010, C423S244070, C423S244080
Reexamination Certificate
active
07854911
ABSTRACT:
A method of removing SOxfrom a flue gas stream including SOxincludes providing a source of trona and injecting the trona as a dry sorbent into the flue gas stream. The temperature of the flue gas is at an elevated temperature greater than 400° F., preferably between about 600° F. and about 900° F. The trona is maintained in contact with the flue gas for a time sufficient to react a portion of the trona with a portion of the SOxto reduce the concentration of the SO2and/or SO3in the flue gas stream.
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Brinks Hofer Gilson & Lione
Solvay Chemicals, Inc.
Vanoy Timothy C
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