40 CFR Appendix Table NN-2 to Subpart NN of Part 98 - Table NN-2 to Subpart NN of Part 98—Default Factors for Calculation Methodology 2 of This Subpart
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Table NN-2 to Subpart NN of Part 98—Default Factors for Calculation Methodology 2 of This Subpart
| Fuel | Unit | Default CO2 emission factor
(MT CO2/Unit) 1 |
|---|---|---|
| Natural Gas | Mscf | 0.0544 |
| Propane | Barrel | 0.241 |
| Normal butane | Barrel | 0.281 |
| Ethane | Barrel | 0.170 |
| Isobutane | Barrel | 0.270 |
| Pentanes plus | Barrel | 0.324 |
1 Conditions for emission value presented in MT CO2/bbl are 60 °F and saturation pressure.