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2.B.6 - Titanium Dioxide Production
Short description
Category Code | Method | AD | EF | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2.B.6 | T3 | C | C | ||||||||||||
Key Category | SO₂ | NOₓ | NH₃ | NMVOC | CO | BC | Pb | Hg | Cd | Diox | PAH | HCB | TSP | PM₁₀ | PM₂.₅ |
2.B.6 | -/- | -/- | - | - | -/- | - | - | - | - | - | - | - | -/- | - | - |
In NFR 2.B.6, SO₂,CO,NOx and TSP emissions from the production of titanium dioxide are reported.
Method
Activity Data
There are two kinds of processes called chloride process and sulfate process for the production of titanium dioxide. The total production amount is attained from the German Federal Statistical Office [1] For the calculation of individual production of each process, the fraction of chloride process is determined based on the estimated total production capacity in Germany (480kt/y) and the production capacity via chloride process (165kt/y) [2][3].
Emission Factors
Emission factors for Titanium dioxide production are the Tier 2 emission factors from EMEP Guidebook: NOx, CO, and TSP are provided for the chloride process, while only factors for NOx and TSP are available for the sulfate process. The applied Tier 2 emission factors are listed in Table 1 [4].
Table 1: Tier 2 emission factors for Titanium dioxide production
Pollutant | Name of process | EF | Unit |
---|---|---|---|
CO | Chloride | 159 | kg/t |
NOₓ | Chloride | 0.1 | kg/t |
TSP | Chloride | 0.2 | kg/t |
NOₓ | Sulfate | 0.108 | kg/t |
TSP | Sulfate | 0.3 | kg/t |
Recalculations
For SO₂ emissions from the production of titanium dioxide and sulphuric acid, estimates reported for the second to last year of the time series are routinely actualised by the producers. Furthermore, definite emissions for the last year of the time series are not yet available at the time the inventory is compiled. Here, the reported values represent a prediction and are therefore updated with each new submission as well.
Because of technical problems with the data transfer, there is a small recalculation for titanium dioxide production for 2015 and 2016.
For pollutant-specific information on recalculated emission estimates for Base Year and 2018, please see the pollutant specific recalculation tables following chapter 8.1 - Recalculations.
Planned improvements
In the NEC Review Germany was requested to calculate emissions of NOx, CO and TSP from titanium dioxide production. Germany tries to collect the data needed to calculate these emissions.
For the Key Category Analyses the emissions of SOx from TiO2 production are wrongly allocated to 2B10a. Germany plans to reallocate these emissions in the next submission back to TiO2.