Code of Federal Regulations Title 40. Protection of Environment 40 CFR Pt. 98, Subpt. F, Tbl. F-2 Table F–2 to Subpart F of Part 98—Default Data Sources for Parameters Used for CO 2 Emissions

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.

S_a: sulfur content in baked anode (percent weight)

2.0.

Ash_a: 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.

S_p: sulfur content of pitch (percent weight)

0.6.

Ash_p: ash content of pitch (percent weight)

0.2.

H_p: hydrogen content of pitch (percent weight)

3.3.

S_c: sulfur content in calcined coke (percent weight)

1.9.

Ash_c: 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.

H_w: annual hydrogen content in green anodes (metric tons)

0.005 x GA.

BA: annual baked anode production (metric tons)

Individual facility records.

WT: annual waste tar collected (metric tons)

(a) 0.005 x 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.

S_pc: sulfur content in packing coke (percent weight)

2.

Ash_pc: ash content in packing coke (percent weight)

2.5.