基于能源消费计算得到2009年上海市NOx排放总量为571 141 t,其中燃煤电厂、机动车、黑色金属冶炼及压延加工企业排放量共占总排放量的65.1％.燃煤电厂通过采用LNB(低氮燃烧)技术和SCR(选择性氧化还原)技术,可削减总排放量的12.4％；钢铁企业的烧结机采用分步脱硫脱硝法、活性炭/焦法、循环流化床法等技术可削减3.7％/4.4％；高排放机动车改造基本不可行,建议加速和提前淘汰,可削减2.5％.费用效果分析表明,“十二五”期间完成燃煤电厂、烧结烟气脱硝和高污染机动车淘汰的减排费用效果比分别为4.7×104、7.9×104～10.6×104、12.4×104元/t.燃煤电厂脱硝改造费用效果比低、技术成熟,建议作为首要减排措施.%Based on energy consumption,the total NOx emissions of Shanghai in 2009 were estimated to be 571 ,141 tons. The emissions from coal-burning power plants,motor vehicles,ferrous metal smelting and rolling processing enterprises accounted for 65. 1% of the total emissions. About 12. 4% of NO, emissions from coal-burning power plants could be reduced through application of low-nitrogen oxide combustion (LNB) and selective catalytic reduction (SCR) techniques. The integrated iron and steel enterprises could reduce 3.7%-4. 4% of NOx emissions through application of the WFGD + SCR,PAFP-FGD,or CFB-FGD techniques to the sintering machines. Though accelerating the phase-out of high-emission vehicles,the NOx emissions could be reduced by 2. 5% . Cost-benefit analysis of NOx emission reductions shows that the benefits of coal-burning power plant denitration, sintering flue gas denitrification and phase-out of high-pollution vehicles were 4. 7 × 104,7. 9 × 104-10. 6 × 104 and 12.4 × 104 RMB/t, respectively, during the Twelfth Five-Year Plan period. Since the cost of coal-burning power plant denitrification is low, and the technique is already mature, it should be given priority among NOx emission reduction measures.
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