1. Regulations
  2. title 40
  3. chapter I-i22
  4. part 98
  5. subpart F
  6. appendix-i 1

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

Parameter Data 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]

AUTHORITY: 42 U.S.C. 7401-7671q.

SOURCE: 74 FR 56374, Oct. 30, 2009, unless otherwise noted.