Report - DCE - Nationalt Center for Miljø og Energi

The total fuel consumption in industrial combustion was 12 % lower in 2010
than in 1990. The fuel consumption has decreased considerably (17 %) since
2006 but however increased since 2009. The consumption of gas has increased
since 1990 whereas the consumption of coal has decreased. The consumption
of residual oil has decreased, but the consumption of petroleum
coke increased. The biomass consumption has increased 27 % since 1990.
The SO2 emission has decreased 79 % since 1990. This is mainly a result of
lower consumption of residual oil in the industrial sector (Figure 3.35). Further,
the sulphur content of residual oil and several other fuels has decreased
since 1990 due to legislation and tax laws.
The NOx emission has decreased 56 % since 1990 due to the reduced emission
from industrial boilers in general. Cement production is the main emission
source accounting for more than 50 % of the emission except in 2010.
The NOx emission from cement production was 67 % of the 1990 emission
level whereas the fuel consumption was only 5 % lower. The reduced emission
is a result of installation of SCR on all production units in 2004-2007 and
improved performance of the SCR units in recent years. In 2010, the declining
production rate also contributes to the reduced emission.
The NMVOC emission has decreased 73 % since 1990. The decrease is
mainly a result of decreased emission factor for combustion of wood in industrial
boilers. The emission from gas engines has however increased considerably
after 1995 due to the increased fuel consumption that is a result of
the installation of a large number of industrial CHP plants (Figure 3.35). The
NMVOC emission factor for gas engines is much higher than for boilers regardless
of the fuel.
The CO emission in 2010 was 19 % lower than in 1990. The main source of
emission is combustion in ,QGXVWU\ ² 2WKHU, primarily in wood and cement
production. The CO emission from mineral wool production is included in
the industry sector (2A7d).
The time series for dioxin from ,QGXVWU\ ² 2WKHU is not correct. The inconsistent
data for the cement production plant Aalborg Portland will be corrected
in the next inventory.