2.A.2 - Lime Production

Last updated on 20 Mar 2018 07:38 (cf. Authors)

Short description

NFR-Code Name of Category Method AD EF Key Category 1
2.A.2 Lime Production T1 AS CS beyond the 80% level for all

The statements made below regarding source category 2.A.2 refer solely to the amounts of burnt lime and dolomite lime produced in German lime works. Other lime-producing processes are included in NFR 2.C.1 and 2.H.2. Information about the key source relevance can be found in 2.A Mineral Industry.

Because of the wide range of applications covered by the sector's products, lime production is normally more isolated from economic fluctuations than is production of other mineral products such as cement. Production has fluctuated relatively little since the end of the 1990s. Dolomite-lime production, of which significantly smaller amounts are produced, basically exhibits similar fluctuations.

Method

The pertinent emissions level is obtained by multiplying the amount of product in question (quick lime or dolomite lime) and the relevant emission factor.

Activity data

The German Lime Association (BVK) collects the production data for the entire time series on a plant-specific basis, and makes it available for reporting purposes. Production amounts are determined via several different concurrent procedures; their quality is thus adequately assured (Tier 2). Most companies are also required to report lime-production data within the framework of CO2-emissions trading. The EU monitoring guidelines for emissions trading specify a maximum accuracy of 2.5 %. It is additionally assumed that 2 % of the burnt lime is separated as dust in all years of the reporting period from 1990 onwards via appropriate exhaust gas purification systems and is not returned to the production process. This is taken into account by a potential 2 % increase in activity rates.

Emission factors

Table 1: Emission factors for quick-lime production
pollutant Name of Category EF unit Trend
NOx quicklime 0.61 kg/t falling
SO2 quicklime 0.12 kg/t falling
NMVOC quicklime 0.041 kg/t constant
TSP quicklime 0.055 kg/t falling
PM10 quicklime 0.043 kg/t falling
PM2.5 quicklime 0.025 kg/t falling
Hg quicklime 2.88 mg/t falling
Table 2: Emission factors for dolomite production
pollutant Name of Category EF unit Trend
NOx dolomite 1.81 kg/t falling
SO2 dolomite 0.59 kg/t falling
NMVOC dolomite 0.041 kg/t constant
TSP dolomite 0.038 kg/t falling
PM10 dolomite 0.029 kg/t falling
PM2.5 dolomite 0.017 kg/t falling
Hg quicklime 2.94 mg/t falling

Trends in emissions

All trends in emissions correspond to trends of emission factors in table above. No rising trends are identified.

Recalculations

Recalculation activities were necessary due to first time reporting of mercury.

For pollutant-specific information on recalculated emission estimates reported for Base Year and 2015, please see the pollutant specific recalculation tables following chapter 8.1 - Recalculations.

Planned improvements

At the moment, no category-specific improvements are planned.

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