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

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tional emission inventories in future. The plants will report CO 2 emissions for <strong>2005</strong> according to<br />

this legislation.<br />

Table 3.11 CO 2 emission factors 2003<br />

à à Ã<br />

à <br />

Coal 95 kg/GJ Country specific Solid<br />

Brown coal briquettes 94,6 kg/GJ IPCC reference manual Solid<br />

Coke oven coke 108 kg/GJ IPCC reference manual Solid<br />

Petroleum coke 92 kg/GJ Country specific Liquid<br />

Wood 102 kg/GJ Corinair Biomass<br />

Municipal waste 94,5 17,6 kg/GJ Country specific Biomass /<br />

O<strong>the</strong>r fuels<br />

Straw 102 kg/GJ Country specific Biomass<br />

Residual oil 78 kg/GJ Corinair Liquid<br />

Gas oil 74 kg/GJ Corinair Liquid<br />

Kerosene 72 kg/GJ Corinair Liquid<br />

Fish & rape oil 74 kg/GJ Country specific Biomass<br />

Orimulsion 80 kg/GJ Country specific Liquid<br />

Natural gas 57,19 kg/GJ Country specific Gas<br />

LPG 65 kg/GJ Corinair Liquid<br />

Refinery gas 56,9 kg/GJ Country specific Liquid<br />

Biogas 83,6 kg/GJ Country specific Biomass<br />

CH 4<br />

The CH 4 emission factors applied for 2003 are presented in Table 3.12. In general, <strong>the</strong> same emission<br />

factors have been applied for 1990-2003. However, time-series have been estimated for both<br />

natural gas fuelled engines and biogas fuelled engines. The emission factors and references are<br />

fur<strong>the</strong>r discussed in Annex 3A.<br />

Emission factors for gas engines, gas turbines and CHP plants combusting wood, straw or municipal<br />

waste all refer to emission measurements carried out on Danish plants (Nielsen & Illerup 2003).<br />

Most o<strong>the</strong>r emission factors refer to <strong>the</strong> EMEP/Corinair Guidebook (EMEP/Corinair 2004).<br />

Gas engines combusting natural gas or biogas contribute much more to <strong>the</strong> total CH 4 emission<br />

than o<strong>the</strong>r stationary combustion plants. The relatively high emission factor for gas engines is well<br />

documented, based on a very high number of emission measurements on Danish plants. The factor<br />

is fur<strong>the</strong>r discussed in Annex 3A. Due to <strong>the</strong> considerable consumption of natural gas and biogas<br />

in gas engines <strong>the</strong> IEF (implied emission factor) in CRF sector 1A1, 1A2 and 1A4, fuel categories<br />

Gaseous fuels and Biomass is relatively high. The considerable change in IEF is a result of <strong>the</strong> increasing<br />

consumption of natural gas and biogas in gas engines as discussed in Chapter 3.2.1.2.<br />

66

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