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sector:ippu:metal_production:iron_and_steel_production:start [2023/04/19 09:06] – [Short description] reichel | sector:ippu:metal_production:iron_and_steel_production:start [2023/04/27 15:23] – [Method] reichel | ||
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**PAH** | **PAH** | ||
- | In the 2021 review the application of a consistent methodology in reporting of PAH emissions in 2C1-iron and steel production was claimed. As there is not enough data available to report individual PAHs Germany decided to only report total-PAHs for the whole time. But for pig iron production | + | In the 2021 review the application of a consistent methodology in reporting of PAH emissions in 2C1-iron and steel production was claimed. As there is not enough data available to report individual PAHs Germany decided to only report total-PAHs for the whole time. But for __pig iron production__ |
- | Emissions of PAH depend on the coating material used. The emission factor in table 3.8 of the actual emission guidebook 2019 for pig iron production (2500 mg/t) is only valid for tar containing coating material and excluded abatement technics. Both assumptions are not appropriate for Germany. As tar-free materials are used for coating PAH emissions should not play any role. And the blast furnace gas is conducted and used. But as PAH emissions could not be surely ruled out and in order to avoid an underestimation of PAH emissions in pig iron production the emission factor for total-PAH is set to the 10-fold of the BaP emission factor. | + | Emissions of PAH depend on the coating material used. \\ |
+ | The emission factor in table 3.8 of the actual emission guidebook 2019 for pig iron production (2500 mg/t) is only valid for tar containing coating material and excluded abatement technics. Both assumptions are not appropriate for Germany. As tar-free materials are used for coating PAH emissions should not play any role. And the blast furnace gas is conducted and used. But as PAH emissions could not be surely ruled out and in order to avoid an underestimation of PAH emissions in pig iron production the emission factor for total-PAH is set to the 10-fold of the BaP emission factor. | ||
=====Discussion of emission trends===== | =====Discussion of emission trends===== | ||
- | The trends in emissions correspond to the trends of emission factors given in the tables above, which are often driven by regulatory measures. | + | The trends in emissions correspond to the trends of emission factors given in the tables above, which are often driven by regulatory measures.\\ |
However, since 2010, the main driver of the emission trends in most cases is the activity data. | However, since 2010, the main driver of the emission trends in most cases is the activity data. | ||