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Clean flue gases |
Brought into contact with the hot flue gases (min. temperature of 140°C), the sodium bicarbonte converts rapidly into sodium carbonate, with a high specific surface and porosity.
The conversion of sodium bicarbonate into activated carbonate makes the NEUTREC® process an excellent way of neutralising acids (hydrochloric acid, sulphur dioxide, hydrofluoric acid, etc.) and absorbing heavy metals, dioxins and furans.
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POLLUTANTS
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Units
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Directive
2000/76/CE
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Clean flue gases
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Dust
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mg/Nm3
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10
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< 10
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Hydrochloric acid (HCl)
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mg/Nm3
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10
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< 10(3)
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Fluorhydric acid (HF)
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mg/Nm3
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1
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< 1
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Sulphur oxides (SOx)
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mg/Nm3
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50
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< 15(3)
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Nitrogen oxides (NOx)
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mg/Nm3
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200 (400(4))
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(1)
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Total heavy metals
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mg/Nm3
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0,5
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< 0.5
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Mercury (Hg)
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mg/Nm3
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0,05
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< 0,05(2)
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Dioxins/Furans (PCDD/F)
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ng TE/Nm3
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0,1
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< 0,1(2)
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(1) compatible with catalytic and non catalytic system of NOx cleaning
(2) with activated carbon
(3) possibility to go much below the 50 mg/Nm3 standard
(4) for the existing plants with a nominal capacity lower than six tonnes/hour
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