- Assessment of SO2, NOx and CO2 co-control effects by technological reduction measures in iron & steel industry
- 环境保护部环境与经济政策研究中心,北京 100029
- Abstract：As the situation of pollution control becoming pressing in China, it is not only necessary but also urgent to take co-control measures to obtain multi-pollutant control target. Development and application of the right assessment methods to evaluate the co-control effects of emission reduction measures is the basis of choosing the best available reduction measures and implementing co-control. Innovative and systematic methods are proposed to assess SO2, NOx and CO2 co-control effects by technological reduction measures in iron & steel industry. Co-control effects coordinate system, pollutant reduction cross elasticity (Elsa/b) and unit pollutant reduction cost are deliberately designed and applied to examine the co-control effects of SO2, NOx and CO2 for optional technological reduction measures in iron & steel industry. The analytical results of co-control effects coordinate system and Elsa/b show that end-of-pipe control measures either do not have co-control effects at all or only have poor co-control effects, while most of the in-the-process control measures can reduce SO2, NOx and CO2 emission simultaneously. Moreover, the unit pollutant reduction cost calculation also show that end-of-pipe measures are less prior than the in-the-process control measures. We suggest that policy makers should use appropriate assessment methods according to their policy targets, and then choose the most cost-effective technological reduction measures when conducting co-control planning for iron & steel industry.
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