Process Name Emission Factor Unit
portland cement
production
based on clinker output 5.17E-01 (kg CO2 / kg clinker)
based on cement output 4.99E-01 (kg CO2 / kg cement)
quicklime production high calcium lime 7.85E-01 (kg CO2 / kg calcium lime)
dolomitic lime 9.13E-01 (kg CO2 / kg dolomitic lime)
limestone and
dolomite use
lime stone 4.40E-01 (kg CO2 / kg CaCO3)
dolomite 4.47E-01 (kg CO2 / kg MgCO3)
soda ash production
and use
soda ash production 9.70E-02 (kg CO2 / kg trona)
soda ash use 4.15E-01 (kg CO2 / kg soda ash)
ammonia production ammonia 3.67E+00 (kg CO2 / kg C)
adipic acid production adipic acid 9.30E+00 (kg CO2 / kg adipic acid)
carbide silicon carbide production 2.30E+00 (kg CO2 / kg cokes)
2.14E-01 (kg CO2 / kg petrol cokes)
2.44E-01 (kg CO2 / kg carbide)
calcium carbide production 1.80E+00 (kg CO2 / kg CaC2)
calcium carbide use 1.10E+01 (kg CO2 / kg CaC2)
chemical
production
carbon black 2.31E-01 (kg CO2 / kg chemicals)
ethylene 2.10E-02
dichloroethylene 8.40E-03
styrene 8.40E-02
methanol 4.20E-02
Coke 1.05E-02
oil refining process Catalytic Cracking Regeneration 3.67E+00 (kg CO2 / kg C)
Refinery Hydrogen Plant
Catalyst Regeneration
pig iron production Simple method 1.60E+00 (kg CO2 / kg iron)
Coal 2.50E+00
Coke from Coal 3.10E+00
Petrol Coke 3.60E+00
Prebaked anodes and coal 3.60E+00
steel construction Simple method 1.60E+00 (kg CO2 / kg steel)
carbon included in the final product 5.00E-03 (kg CO2 / kg EAF steel)
Ferro Alloy production Ferrosilicon-50%Si 2.70E+00 (kg CO2 / kg alloy iron)
Ferrosilicon-75%Si 3.90E+00
Ferrosilicon-90%Si 6.50E+00
Silicon metal 4.30E+00
Ferromanganese 1.60E+00
Silicon Manganese 1.70E+00
Ferrochromium 1.30E+00
aluminium production Soderberg Process 1.80E+00 (kg CO2 / kg Al)
Prebaked Anode Process 1.50E+00
pulp and paper
production
based on used CaCO3 4.40E-01 (kg CO2 / kg CaCO3)
based on used Na2CO3 4.15E-01 (kg CO2 / kg Na2CO3)
HFCs, PFCs,
SF6 production
HFCs, PFCs, SF6 production 4.68E+02 (kg CO2 / kg HCFC22)
SF6 production 4.78E+01 (kg CO2 / kg SF6)
nitric acid production nitric acid 1.22E+00 (kg CO2 / kg HNO2)
- JAPAN guide line
  • ※ Source
    • KEMCO corporate greenhouse gas emissions guidelines, 2006