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Electronic Code of Federal Regulations

e-CFR data is current as of November 12, 2019

Title 40Chapter ISubchapter CPart 98Subpart F → Appendix


Title 40: Protection of Environment
PART 98—MANDATORY GREENHOUSE GAS REPORTING
Subpart F—Aluminum Production


Table F-2 to Subpart F of Part 98—Default Data Sources for Parameters Used for CO2 Emissions

ParameterData source
CO2 Emissions from Prebake Cells (CWPB and SWPB)
MP: metal production (metric tons Al)Individual facility records.
NAC: net annual prebaked anode consumption per metric ton Al (metric tons C/metric tons Al)Individual facility records.
Sa: sulfur content in baked anode (percent weight)2.0.
Asha: ash content in baked anode (percent weight)0.4.
CO2 Emissions From Pitch Volatiles Combustion (CWPB and SWPB)
MP: metal production (metric tons Al)Individual facility records.
PC: annual paste consumption (metric ton/metric ton Al)Individual facility records.
CSM: annual emissions of cyclohexane soluble matter (kg/metric ton Al)HSS: 4.0.
VSS: 0.5.
BC: binder content of paste (percent weight)Dry Paste: 24.
Wet Paste: 27.
Sp: sulfur content of pitch (percent weight)0.6.
Ashp: ash content of pitch (percent weight)0.2.
Hp: hydrogen content of pitch (percent weight)3.3.
Sc: sulfur content in calcined coke (percent weight)1.9.
Ashc: ash content in calcined coke (percent weight)0.2.
CD: carbon in skimmed dust from Søderberg cells (metric ton C/metric ton Al)0.01.
CO2 Emissions from Pitch Volatiles Combustion (VSS and HSS)
GA: initial weight of green anodes (metric tons)Individual facility records.
Hw: annual hydrogen content in green anodes (metric tons)0.005 × GA.
BA: annual baked anode production (metric tons)Individual facility records.
WT: annual waste tar collected (metric tons)(a) 0.005 × GA.
(a) Riedhammer furnaces(b) insignificant.
(b) all other furnaces
CO2 Emissions From Bake Furnace Packing Materials (CWPB and SWPB)
PCC: annual packing coke consumption (metric tons/metric ton baked anode)0.015.
BA: annual baked anode production (metric tons)Individual facility records.
Spc: sulfur content in packing coke (percent weight)2.
Ashpc: ash content in packing coke (percent weight)2.5.

[74 FR 56374, Oct. 30, 2009, as amended at 75 FR 79156, Dec. 17, 2010]

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