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sector:ippu:mineral_industry:cement_production:start [2021/04/09 07:18] – link korrigiert kludtsector:ippu:mineral_industry:cement_production:start [2021/04/14 12:12] – Links corrected kludt
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-The remarks below refer to production of cement clinkers and clinker grinding (only relevant as a source for particulate matter). The clinker-burning with intensive use of energy emits climate-relevant gases. CO₂ accounts for the great majority of these emissions, but heavy metals are important too. Information about the key source relevance can be found in [[sector:ippu:mineral_industry:start|2.A - Mineral Industry]]. +The remarks below refer to production of cement clinkers and clinker grinding (only relevant as a source for particulate matter). The clinker-burning with intensive use of energy emits climate-relevant gases. CO₂ accounts for the great majority of these emissions, but heavy metals are important too.
 ===== Methodology ===== ===== Methodology =====
  
 ==== Activity data ==== ==== Activity data ====
  
-Activity data are determined via summation of figures for individual plants (until 1994, activity data were determined on the basis of data of the official member association BDZ). As of 1995, following optimisation of data collection within the association, activity data were compiled by the   [[https://www.vdz-online.de/home1.html?&L=1|German Cement Works Association]] (VDZ), and by its [[https://www.vdz-online.de/en/vdz/research-institute/|VDZ research institute]] (located in Düsseldorf), via surveys of German cement plants. The data are supplemented with data for plants that are not BDZ members (in part, also VDZ estimates). +Activity data are determined via summation of figures for individual plants (until 1994, activity data were determined on the basis of data of the official member association BDZ). As of 1995, following optimisation of data collection within the association, activity data were compiled by the   [[https://www.vdz-online.de|German Cement Works Association]] (VDZ), and by its [[https://www.vdz-online.de/forschung|VDZ research institute]] (located in Düsseldorf), via surveys of German cement plants. The data are supplemented with data for plants that are not BDZ members (in part, also VDZ estimates). 
  
 For internal reasons within the association, the data for the years from 2015 onwards is not available from the VDZ. Instead, the cement clinker specification is based on aggregated plant specific ETS-data of DEHSt. A comparison for the years 2005-2014 showed a good correlation between information of the European Emissions Trading (ETS) and the cement clinker production data of the VDZ. So, the cement clinker information from 2015 onwards is based on aggregated data of ETS. All companies are required to report production data within the framework of CO₂-ETS. The EU monitoring guidelines for emissions trading specify a maximum accuracy of 2.5%. For internal reasons within the association, the data for the years from 2015 onwards is not available from the VDZ. Instead, the cement clinker specification is based on aggregated plant specific ETS-data of DEHSt. A comparison for the years 2005-2014 showed a good correlation between information of the European Emissions Trading (ETS) and the cement clinker production data of the VDZ. So, the cement clinker information from 2015 onwards is based on aggregated data of ETS. All companies are required to report production data within the framework of CO₂-ETS. The EU monitoring guidelines for emissions trading specify a maximum accuracy of 2.5%.