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Electronic Code of Federal Regulations

e-CFR data is current as of November 15, 2019

Title 40Chapter ISubchapter CPart 98Subpart NN → Appendix


Title 40: Protection of Environment
PART 98—MANDATORY GREENHOUSE GAS REPORTING
Subpart NN—Suppliers of Natural Gas and Natural Gas Liquids


Table NN-1 to Subpart NN of Part 98—Default Factors for Calculation Methodology 1 of This Subpart

FuelDefault higher heating value1Default CO2
emission
factor
(kg CO2/MMBtu)
Natural Gas1.026 MMBtu/Mscf53.06
Propane3.84 MMBtu/bbl62.87
Normal butane4.34 MMBtu/bbl64.77
Ethane2.85 MMBtu/bbl59.60
Isobutane4.16 MMBtu/bbl64.94
Pentanes plus4.62 MMBtu/bbl70.02

1Conditions for higher heating values presented in MMBtu/bbl are 60 °F and saturation pressure.

[78 FR 71977, Nov. 29, 2013]

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