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sector:ippu:metal_production:aluminum_production:start [2021/04/14 20:15] – [Bibliography] reichel | sector:ippu:metal_production:aluminum_production:start [2022/02/23 15:14] – [Table] kuntze | ||
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===== Short description ===== | ===== Short description ===== | ||
- | ^ Category Code ^ Method | + | ^ Category Code ^ Method |
- | | 2.C.3 | T2, T3 | + | | 2.C.3 | T2, T3 ||||| AS |
- | ^ Key Category | + | ^ Key Category |
- | | 2.C.3 | - | + | | 2.C.3 | -/- | - | -/ |
- | The category //2.C.3 - Aluminium production// | + | The category //2.C.3 - Aluminium production// |
- | In Germany, primary aluminium is produced in electrolytic furnaces with pre-baked anodes. The pre-baked anodes are produced in separate anode production plants, where petroleum coke and tar pitch are mixed subsequently baked. This process produces PAH emissions. Hence, the aluminium production is a trend key category for PAH (TIER-2-method, | + | In Germany, primary aluminium is produced in electrolytic furnaces with pre-baked anodes. The pre-baked anodes are produced in separate anode production plants, where petroleum coke and tar pitch are mixed together and subsequently baked. This process produces PAH emissions. Hence, the aluminium production is a trend key category for PAH (TIER-2-method, |
- | Secondary aluminium is produced in several different furnace types. | + | Secondary aluminium is produced in several different furnace types. |
- | The use of hexachloroethane for degassing | + | |
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=== Activity data === | === Activity data === | ||
- | The yearly | + | The production figures |
- | The total quantity of waste gas incurred per tonne of aluminium during the production of primary aluminium was multiplied by an average concentration value formed from several individual figures, from various | + | The total quantity of waste gas incurred per tonne of aluminium during the production of primary aluminium was multiplied by an average concentration value formed from several individual figures |
=== Emission factors === | === Emission factors === | ||
- | The emission factors are either default values according to the 2019 EMEP/EEA air pollutant emission inventory guidebook < | + | The emission factors are either default values according to the 2019 EMEP/EEA air pollutant emission inventory guidebook < |
- | The emission factors also make allowance for fugitive emission sources, such as emissions via hall roofs. | + | The emission factors also make allowance for fugitive emission sources, such as emissions via hall roofs.\\\\ |
- | The emission figures used for CO are the results of emission measurements within the context of investment projects. | + | The emission figures used for CO are the results of emission measurements within the context of investment projects. |
- | The emission factors for SO< | + | |
- | The average anode consumption is 430 kg of petrol coke per tonne of aluminium. | + | The emission factors for SO< |
The following tables show some process-related emission factors. | The following tables show some process-related emission factors. | ||
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__Table 1: Emission factors applied for anode production__ | __Table 1: Emission factors applied for anode production__ | ||
- | ^ | + | ^ |
- | | PAH | anode production | 300 | mg/t | constant | + | | PAH |
__Table 2: Emission factors applied for primary aluminium production__ | __Table 2: Emission factors applied for primary aluminium production__ | ||
- | ^ | + | ^ |
| CO | primary aluminium | 180 | kg/t | constant | | | CO | primary aluminium | 180 | kg/t | constant | | ||
| SO< | | SO< | ||
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| Ni | primary aluminium | 0.162 | g/t | falling | | | Ni | primary aluminium | 0.162 | g/t | falling | | ||
| Zn | primary aluminium | 10 | g/t | constant | | | Zn | primary aluminium | 10 | g/t | constant | | ||
- | | NOx | primary aluminium | 1 | kg/t | constant | | + | | NO< |
- | Nitrogen | + | Nitrogen |
__Table 3: Emission factors applied for secondary aluminium production__ | __Table 3: Emission factors applied for secondary aluminium production__ | ||
- | ^ | + | ^ |
| TSP | resmelted aluminium | | TSP | resmelted aluminium | ||
| PM< | | PM< | ||
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===== Recalculations ===== | ===== Recalculations ===== | ||
- | No recalculations have been carried out compared | + | No recalculations have been carried out relative |
<WRAP center round info 60%> | <WRAP center round info 60%> | ||
- | For more information on recalculated emission estimates for Base Year and 2018, please see the pollutant-specific recalculation tables following chapter [[general: | + | For more information on recalculated emission estimates for the Base Year and 2018, please see the pollutant-specific recalculation tables following chapter [[general: |
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