Denmark's National Inventory Report 2005 - Submitted under the ...

In the EMEP/CORINAIR Guidebook (Richardson, 1999) emission factors for different countries
are given. In the Danish emission inventory the Norwegian emission factors are used (Table 3.30)
(Flugsrud et al., 2000). The emissions for storage of oil are given in the green accounts from DONG
for 2003 (DONG, 2004) and the emission factor is calculated on the basis of the amount of oil
transported in pipeline.
Table 3.30. Emission factors.
CH4 NMVOC Unit Reference.
Ships off-shore 0,00005 0,001 Fraction of loaded Richardson, 1999
Ships on-shore 0,000002 0,0002 Fraction of loaded Richardson, 1999
Oil tanks 113 249 kg/10 3 m 3
DONG, 2004
From the activity data in Table 3.29 and the emission factors in Table 3.30 the emissions for
NMVOC and CH4 are calculated in Table 3.31.
Table 3.31. CH emissions for 2003 (tonnes):
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CH4 NMVOC
Extraction (fugitive) 1524 508
Oil tanks 2000 4407
Off-shore loading of ships 142 2845
On-shore loading of ships 23 2298
Total 3689 10058
Oil Refineries
Petroleum products processing: In the production process at the refineries a part of the volatile
hydrocarbons (VOC) is emitted to the atmosphere. It is assumed that CH 4 accounts for 1% and
NMVOC for 99% of the emissions. The VOC emissions from the petroleum refinery processes
cover non-combustion emissions from feed stock handling/storage, petroleum products processing,
product storage/handling and flaring. SO 2 is also emitted from the non-combustion processes
and includes emissions from products processing and sulphur recovery plants. The emission calculations
are based on information form the Danish refineries and the energy statistic.
Table 3.32 Oil Refineries. Processed crude oil, emissions and emission factors
1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003
Crude oil (1000 Mg) 7263 7798 8232 8356 8910 9802 10522 7910 7906 8106 8406 8284 8045 8350
CH4 emission (Mg) 37 39 42 43 57 48 62 45 45 45 50 44 43 37
CH4 emission factor (g/Mg) 5 5 5 5 6 5 6 6 6 6 6 5 5 4
NMVOC emission (Mg) 3667 3937 4203 4219 5855 4546 5875 4547 4558 4558 4983 4338 4302 3708
NMVOC emission factor (g/Mg) 505 505 511 505 657 464 558 575 577 562 593 524 535 444
3.5.2.3 Fugitive emissions from natural gas, transmission and distribution (CRF sector 1B2b)
Inventories of CH emission from gas transmission and distribution are based on annual environ-
4
mental reports from DONG and on a Danish emission inventory for the years 1999-2003 reported
by the Danish gas sector (transmission and distribution companies) (Karll 2003, Karll 2004). The
inventories estimated by the Danish gas sector are based on the work carried out by Marcogas and
the International Gas Union (IGU). Data for gas distribution have not been updated this year, and
instead the 2002 data are applied for 2003.
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