Process for denoxification of off-gases from annealing and pickling lines, and an annealing and pickling line, especially for stainless steel hot or cold strip
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United States of America Patent
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Jan 19, 2010
Grant Date -
Sep 6, 2007
app pub date -
Feb 26, 2007
filing date -
Feb 27, 2006
priority date (Note) -
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Abstract
A process for denoxification of off-gases from annealing and pickling lines, providing for the off-gases from the pickling section to be heated and denoxified by selective catalytic reduction (SCR). In order to secure the meeting of lowest NOx values in the off-gas with the lowest possible expenditure, heat is supplied from the off-gases from the annealing furnace (1) to the off-gases from the pickling section (3) before the selective catalytic reduction (9).
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