40 CFR Appendix Table NN-1 to Subpart NN of Part 98 - Table NN–1 to Subpart NN of Part 98—Default Factors for Calculation Methodology 1 of This Subpart
Table NN–1 to Subpart NN of Part 98—Default Factors for Calculation Methodology 1 of This Subpart
Fuel | Default higher heating value 1 | Default CO2
emission factor (kg CO2/MMBtu) |
---|---|---|
Natural Gas | 1.026 MMBtu/Mscf | 53.06 |
Propane | 3.84 MMBtu/bbl | 62.87 |
Normal butane | 4.34 MMBtu/bbl | 64.77 |
Ethane | 2.85 MMBtu/bbl | 59.60 |
Isobutane | 4.16 MMBtu/bbl | 64.94 |
Pentanes plus | 4.62 MMBtu/bbl | 70.02 |
1 Conditions for higher heating values presented in MMBtu/bbl are 60 °F and saturation pressure.
[78 FR 71977, Nov. 29, 2013]