Fossil fuel emissions

Fossil fuel extraction

Emissions due to the extraction of fossil fuel are taken into account through emissions factors calibrated on the amount of fossil fuel extracted.

Table 1: Emissions factors due to fossil fuel extraction

Case	Emission	Units	AFR	AUS	CAN	CHI	CSA	EEU	FSU	IND	JPN	MEA	MEX	ODA	SKO	USA	WEU
Gas extraction	CO2	kg/GJ	0,87	0,87	7,27	3,00	2,15	1,71	0,75	0,68	2,44	0,89	3,75	2,15	0,22	1,96	2,10
Oil extraction	CO2	kg/GJ	0,87	0,87	7,27	3,00	2,15	1,71	0,75	0,68	2,44	0,89	3,75	2,15	0,22	1,96	2,10
Coal extraction	CO2	kg/GJ	4,29	4,28	3,55	3,41	2,33	2,33	1,87	1,24	1,20	1,20	1,20	1,20	1,20	0,29	0,06
Gas extraction	CH4	g/GJ	48	2	219	24	277	1221	568	546	301	19	484	103	199	176	149
Oil extraction	CH4	g/GJ	56	9	146	28	18	2	19	4	0	20	20	8	0	29	5
Coal extraction	CH4	g/GJ	69	90	36	116	114	300	317	45	1	127	340	128	1397	130	390

Fossil fuel combustion

Combustion emissions concern CO₂, CH₄ and N₂O. Table 2 reports CO₂ emissions factor based on (EIA, 2022)

Table 2: Emissions factors due to fossil fuel combustion

Fossil fuel	CO2 emissions [kgCO2/MJ]
Brown coal	98
Hard coal	109
Oven coke	120
Jet fuel	75
Kerosene	76
LPG	68
Fossil gas	56
Ethane	56
Working gas	56
Crude oil	83
Distillates	77
Gasoline	75
Heavy fuel	83
Lubricants	78
Naphtha	77

Emissions due to geothermal energy use show an emission factor of 0.03 kgCO₂/MJ.

The non-CO₂ emissions are defined according to the end use. Table 3 reports their sectoral emissions factors in t/PJ.

Table 3: Emissions factors due to fossil fuel end-use

Sector	Emission	Coal	Heavy fuel oil	Kerosene	LGP	Fossil gas	Oil	Gasoline	Solid biomass	Wastes	Oven coke	Petcoke	Blast furnace gas
Agricultural	CH4	5.00		1.00	5.00	5.00	2.00
Agricultural	N2O	1.40		0.60	0.10	0.10	0.60
Commercial	CH4	5.00	5.00	1.00	5.00	5.00	2.00
Commercial	N2O	1.40	0.60	0.60	0.10	0.10	0.60
Electricity	CH4	5.00				5.00	2.00		300.00	300.00
Electricity	N2O	1.40				0.10	0.60		4.00	4.00
Industrial	CH4	5.00	5.00		5.00	5.00	2.00				5.00	5.00
Inudstrial	N2O	1.40	0.60		0.10	0.10	0.60				0.10	0.10
Residential	CH4	5.00	5.00	1.00	5.00	5.00	2.00
Residential	N2O	1.40	0.60	0.60	0.10	0.10	0.60
Supply	CH4	5.00				5.00	2.00		300.00				0.00
Supply	N2O	1.40				0.10	0.60		4.00				1.40
Transport	CH4	5.00	5.00	5.53	5.00	5.00	5.00	20.00
Transport	N2O	1.40	0.60	6.10	0.10	0.10	0.60	0.60

References

EIA, 2022. U.S. Energy Information Administration - EIA - Independent Statistics and Analysis [WWW Document]. URL https://www.eia.gov/environment/emissions/co2_vol_mass.php (accessed 10.6.22).