Large Volume Inorganic Chemicals - Ammonia ... - ammk-rks.net
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Large Volume Inorganic Chemicals - Ammonia ... - ammk-rks.net

Large Volume Inorganic Chemicals - Ammonia ... - ammk-rks.net Large Volume Inorganic Chemicals - Ammonia ... - ammk-rks.net

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Chapter 2ParameterProcessEmission levelmg/Nm 3 kg/t NH 3 ppmvRemarkReferenceMethanol Partial oxidation, CO 2 removal 600SO 2 Partial oxidation, thermal post combustion 4500 1.676CO Partial oxidation, thermal post combustion 100 0.034BOD Partial oxidation, process condensate 80 mg/l, inlet of the treatment plantParticulates 10Yara, Brunsbüttel[28, Comments on D2, 2004][3, European Commission, 1997]Methanol Partial oxidation, superheater140H 2 S0.5CO 7 0.016Methanol Partial oxidation, superheater94 0.210H 2 S0.3 0.001CO 8 0.016ParticulatesPartial oxidation, auxiliary boiler4.3 0.008Hydrocarbons 9 0.017Low NO x burnersSO 21060 1.98SO 2 Partial oxidation, Claus unit 2 % of the S-content in fuelSO 2 1340 2.18COPartial oxidation, thermal oxidiser after Claus unit5 0.001Particulates 4 0.008Hydrocarbons9 0.001NH 3 Partial oxidation, emission to water 0.130Particulates Primary reformer 556 Large Volume Inorganic Chemicals – Ammonia, Acids and Fertilisers

Chapter 2ParameterProcessEmission levelmg/Nm 3 kg/t NH 3 ppmvRemarkReferenceAmmonia synthesis, after purge gas washer 75 0.040Fugitive emissionsAdvanced conventional process, emission to water 0.0281 tonne NH 3 /yearStripping of process condensatesand recycling to boiler feed-waterReduced primary reforming, emission to waterHeat exchange autothermal reforming, emission towaterNH 30.0320.080NegligibleSupplying process steam by feedgas saturation with processcondensates[3, European Commission, 1997]Emissions to water before installation of astripping unit0.7 25 m 3 /hour0.8 49 m 3 /hourNH 3 slip from SNCR at primary reformer 1.1 – 5.1 Measured 4 times/year[9, Austrian UBA, 2002]Purge gas from ammonia synthesis18 kg NH 3 /year0.0140.011Ammonia synthesis, emissions to air[6, German UBA, 2000]CO 0.006Hydrocarbons0.0090.2 Catalysts and molecular sieves [3, European Commission, 1997]WasteIn general0.07 Spent catalysts, 13 tonnes/year0.09 Spent catalysts, 31 tonnes/year[9, Austrian UBA, 2002]Table 2.9: Other emission levels reported for the production of ammoniaLarge Volume Inorganic Chemicals – Ammonia, Acids and Fertilisers 57

Chapter 2ParameterProcessEmission levelmg/Nm 3 kg/t NH 3 ppmvRemarkReference<strong>Ammonia</strong> synthesis, after purge gas washer 75 0.040Fugitive emissionsAdvanced conventional process, emission to water 0.0281 tonne NH 3 /yearStripping of process condensatesand recycling to boiler feed-waterReduced primary reforming, emission to waterHeat exchange autothermal reforming, emission towaterNH 30.0320.080NegligibleSupplying process steam by feedgas saturation with processcondensates[3, European Commission, 1997]Emissions to water before installation of astripping unit0.7 25 m 3 /hour0.8 49 m 3 /hourNH 3 slip from SNCR at primary reformer 1.1 – 5.1 Measured 4 times/year[9, Austrian UBA, 2002]Purge gas from ammonia synthesis18 kg NH 3 /year0.0140.011<strong>Ammonia</strong> synthesis, emissions to air[6, German UBA, 2000]CO 0.006Hydrocarbons0.0090.2 Catalysts and molecular sieves [3, European Commission, 1997]WasteIn general0.07 Spent catalysts, 13 tonnes/year0.09 Spent catalysts, 31 tonnes/year[9, Austrian UBA, 2002]Table 2.9: Other emission levels reported for the production of ammonia<strong>Large</strong> <strong>Volume</strong> <strong>Inorganic</strong> <strong>Chemicals</strong> – <strong>Ammonia</strong>, Acids and Fertilisers 57

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