IT1033073B - Nitrogen oxides removed from a gas - by absorption in sulphuric acid and conversion to nitrogen and water
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Nitrogen oxides removed from a gas - by absorption in sulphuric acid and conversion to nitrogen and water
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IT1033073B
IT1033073BIT2086074AIT2086074AIT1033073BIT 1033073 BIT1033073 BIT 1033073BIT 2086074 AIT2086074 AIT 2086074AIT 2086074 AIT2086074 AIT 2086074AIT 1033073 BIT1033073 BIT 1033073B
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The gas contains >=1 mole NO2 per mole NO, and through it is passed a >=80% soln. of H2SO4. After the H2SO4 is passed, NH3(NH4)2SO4, urea, or sulphamic acid is opt added to the acid to react with the absorbed N oxides followed by heating to 125-275 degrees C to convert the N oxides to N2 gas and H2O. The N oxides are readily absorbed by the H2SO4 and the products are innocuous.
IT2086074A1974-04-081974-04-08Nitrogen oxides removed from a gas - by absorption in sulphuric acid and conversion to nitrogen and water
IT1033073B
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