METHOD OF REDUCING NITROGEN OXIDE EMISSIONS IN A CHEMICAL PULP MILL
The present invention relates to recovery of ammonia from ammonia-containing material flows in a chemical pulp mill for decreasing nitrogen oxide emissions of the mill. When practicing this method, the ammonia-containing material flow originating from steam stripping of condensates is adjusted by me...
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Main Authors | , , , , , , |
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Format | Patent |
Language | English Portuguese |
Published |
27.08.2007
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Subjects | |
Online Access | Get full text |
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Summary: | The present invention relates to recovery of ammonia from ammonia-containing material flows in a chemical pulp mill for decreasing nitrogen oxide emissions of the mill. When practicing this method, the ammonia-containing material flow originating from steam stripping of condensates is adjusted by means of alkali to a value of over 10 and is made into contact with steam for separating ammonia from the material flow. The recovered ammonia is used as a chemical in a combustion device in the chemical pulp mill in a way known per se to reduce detrimental nitrogen oxide emissions of the mill. |
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Bibliography: | Application Number: PT20030396102T |