Catalyst – solid sorbent – or support therefor: product or process – Regenerating or rehabilitating catalyst or sorbent – Treating with a liquid or treating in a liquid phase,...
Reexamination Certificate
2003-09-04
2009-08-04
Vanoy, Timothy C (Department: 1793)
Catalyst, solid sorbent, or support therefor: product or process
Regenerating or rehabilitating catalyst or sorbent
Treating with a liquid or treating in a liquid phase,...
C502S020000
Reexamination Certificate
active
07569506
ABSTRACT:
The invention relates to a method for regenerating DeNOx catalysts having an increased SO2/SO3conversion rate as a result of the cumulation of iron compounds, and is characterized in that the catalysts are treated with an essentially aqueous acid solution, preferably having a pH between 0.5 and 4, and with an addition of antioxidants.
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International Search Report in PCT international application PCT/EP03/09794 (corresponding to this current application, which is a national stage filing thereof), mailedDec. 29, 2003, four pages in length, citing certain references listed above.
Berns Daniel
CESI-Tech Technologies, Inc.
Vanoy Timothy C
Womble Carlyle
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