Report - DCE - Nationalt Center for Miljø og Energi

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The refineries deliver information on consumption of fuel gas and fuel oil.
The calorific values are given by the refineries in the reporting for EU ETS
since 2006. Before 2006 the calorific values given by the refineries were used
when available. When not available standard calorific values given in the
basic data tables from the Danish Energy Agency combined with the conversion
factor between fuel gas and fuel oil given by the refinery were used for
calculation.
Emissions of SO2, NOx and VOC are given by the refineries. Only one of the
two refineries has made a split between NMVOC and CH4. For the other refinery
it is assumed that 10 % of the VOC emission is CH4 and the remaining
90 % is NMVOC.
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NMVOC from service stations is calculated by use of different emission factors
for the time series as shown in Table 3.46. In 1994 the emission factors
for NMVOC from service stations were investigated by Fenhann and Kilde
(1994) for the years 1990, 1991 and 1992, individually. The emission factors
reported for reloading and refuelling for 1990 were used for the years 1985-
1990, while the emission factors for 1991 was used for that year only. For the
years 1992-1995 only emission factor for refuelling reported by Fenhann and
Kilde (1994) was used in the Danish emission inventory. For reloading of
tankers the British emission factor - as given in the UK Emission Factor Database
- was adopted for the years 1992-2000. From 2008 the emission factors
from the EMEP/EEA guidebook 2009 are used for reloading and refuelling.
For the years 2001-2007 and 1996-2007 the emission factors for reloading and
refuelling, respectively, are estimated by using interpolation.