2.G - Lubricant Use

Last updated on 14 Mar 2018 10:19 (cf. Authors)

Short description

In this sub-category of 2.G - Other product use Germany reports heavy metal emissions from the unintentional co-incineration of lubricants.

NFR-Code Name of Category Method AD EF Key Category 1
2.G Other Product use: Use of Lubricants T2 M D see superordinate chapter

Method

Activity data

Basically, the amounts of lubricants unintentionally co-incinerated in engines other than 2-strokes is estimated from the annual amounts of fuels used in these engines, excluding the amounts of fuels used for international aviation and navigation.

Here, the majority of lubricant co-incineration takes place in road vehicles. These related amounts of co-incinerated lubricants are calculated directly within TREMOD [1].

Table 1: Annual amounts of lubricants co-incinerated in mobile vehicles and machinery - excluding 2-stroke engines, in terajoules
1990 1995 2000 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016
1,411 1,602 1,705 1,742 1,750 1,764 1,757 1,771 1,786 1,819 1,817 1,833 1,872 1,909 1,941
thereof: in road transport vehicles
1,176 1,413 1,549 1,600 1,612 1,623 1,616 1,625 1,643 1,673 1,673 1,687 1,719 1,755 1,780

source: own estimations and TREMOD [1]

The emission factors are derived from [2], chapter 1.A.3.b.i, 1.A.3.b.ii, 1.A.3.b.iii, 1.A.3.b.iv Passenger cars, light commercial trucks, heavy-duty vehicles including buses and motor cycles:

EMEP-EEA-2016_EF%28HM%29_lubricants_1.A.3.b.JPG

These default EF in [ppm HM /wt lubricant] have been transferred into [g HM/kg lubricant] via a NCV of 0.03985 GJ/kg into the following values:

Table 2: emission factors for heavy-metal emissions from co-incinerated lubricants 1990-2016, in g/TJ
As Cd Cr Cu Hg Ni Pb Se Zn
0.00 114 482 19,523 0.00 800 0.81 114 11,297

Discussion of emission trends

With default emission factors applied, emissions' trends depend solely on the amounts of unintentionally co-incinerated lubricants (see Table 1).

Table 3: Annual heavy-metal emissions from co-incinerated lubricants, in metric tonnes
1990 1995 2000 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016
As 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Cd 0.16 0.18 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.21 0.21 0.21 0.21 0.22 0.22
Cr 0.68 0.77 0.82 0.84 0.84 0.85 0.85 0.85 0.86 0.88 0.88 0.88 0.90 0.92 0.94
Cu 27.55 31.27 33.29 34.01 34.17 34.44 34.31 34.58 34.87 35.51 35.47 35.79 36.55 37.27 37.90
Hg 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Ni 1.13 1.28 1.36 1.39 1.40 1.41 1.41 1.42 1.43 1.46 1.45 1.47 1.50 1.53 1.55
Pb 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Se 0.16 0.18 0.19 0.20 0.20 0.20 0.20 0.20 0.20 0.21 0.21 0.21 0.21 0.22 0.22
Zn 15.94 18.09 19.26 19.68 19.77 19.93 19.85 20.01 20.18 20.55 20.53 20.71 21.15 21.56 21.93

Recalculations

Emissions from the unintended co-incineration of lubricants are reported seperately for the first time, leading to significantly decreased HM emissions in the respective NFr categories covering mobile combustion sources and significantly increased emission estimates for NFR 2.G.

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.


Bibliography
1. ifeu, 2017a: Knörr, W. et al., IFEU - Institut für Energie- und Umweltforschung Heidelberg gGmbH: Fortschreibung des Daten- und Rechenmodells: Energieverbrauch und Schadstoffemissionen des motorisierten Verkehrs in Deutschland 1960-2030, sowie TREMOD 5.71, im Auftrag des Umweltbundesamtes, Heidelberg & Berlin, 2017.
2. EMEP/EEA air pollutant emission inventory guidebook 2016, Copenhagen, 2016.
Unless otherwise stated, the content of this page is licensed under Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License