2.A.2 - Lime Production

Short description

Category Code Method AD EF
2.A.1 T1 AS CS

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Method(s) applied
D Default
T1 Tier 1 / Simple Methodology *
T2 Tier 2*
T3 Tier 3 / Detailed Methodology *
C CORINAIR
CS Country Specific
M Model
* as described in the EMEP/EEA Emission Inventory Guidebook - 2019, in category chapters.
(source for) Activity Data
NS National Statistics
RS Regional Statistics
IS International Statistics
PS Plant Specific
As Associations, business organisations
Q specific Questionnaires (or surveys)
M Model / Modelled
C Confidential
(source for) Emission Factors
D Default (EMEP Guidebook)
CS Country Specific
PS Plant Specific
M Model / Modelled
C Confidential

NOx NMVOC SO2 NH3 PM2.5 PM10 TSP BC CO Heavy Metals POPs
-/- -/- -/- IE -/- -/- -/- NE -/- NA NA

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L/- key source by Level only
-/T key source by Trend only
L/T key source by both Level and Trend
-/- no key source for this pollutant
IE emission of specific pollutant Included Elsewhere (i.e. in another category)
NE emission of specific pollutant Not Estimated (yet)
NA specific pollutant not emitted from this source or activity = Not Applicable
* no analysis done


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.

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.

Methodology

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

Due to recommendation during NEC-Review 2021 the calculation of CO emissions from lime production is allocated to process emissions based on default-EF. The other EF are country-specific values from different research projects.

Table 1: Emission factors for quick-lime production

EF unit Trend
NOx 0.59 kg/t falling
SO2 0.12 kg/t falling
NMVOC 0.041 kg/t constant
CO 1.940 kg/t default 1)
TSP 0.050 kg/t falling
PM10 0.038 kg/t falling
PM2.5 0.023 kg/t falling
Hg 2.62 mg/t falling

Table 2: Emission factors for dolomite production

EF unit Trend
NOx 1.73 kg/t falling
SO2 0.58 kg/t falling
NMVOC 0.041 kg/t constant
CO 1.940 kg/t default 2)
TSP 0.034 kg/t falling
PM10 0.026 kg/t falling
PM2.5 0.015 kg/t falling
Hg 2.63 mg/t falling

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

Emission trends in NFR 2.A.2

Recalculations

With all input data remaining unrevised, no recalculations were made compared to the previous submission.

Planned improvements

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

1) , 2)
EMEP GB 2019: Table 3-23 Tier 2 emission factors for source category 1.A.2.f.i, Lime production