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Table C-1 to Subpart C
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Table C–1: Default CO2 Emission Factors and High Heat Values for Various Types of Fuel

Fuel type

Default high heat value

Default CO2 emission factor

Coal and coke

mmBtu/short ton

kg CO2/mmBtu

Anthracite

25.09

103.54

Bituminous

24.93

93.4

Subbituminous

17.25

97.02

Lignite

14.21

96.36

Coke

24.8

102.04

Mixed (Commercial sector)

21.39

95.26

Mixed (Industrial coking)

26.28

93.65

Mixed (Industrial sector)

22.35

93.91

Mixed (Electric Power sector)

19.73

94.38

Natural gas

mmBtu/scf

kg CO2/mmBtu

(Weighted U.S. Average)

1.028 × 10-03

53.02

Petroleum products

mmBtu/gallon

kg CO2/mmBtu

Distillate Fuel Oil No. 1

0.139

73.25

Distillate Fuel Oil No. 2

0.138

73.96

Distillate Fuel Oil No. 4

0.146

75.04

Residual Fuel Oil No. 5

0.14

72.93

Residual Fuel Oil No. 6

0.15

75.1

Used Oil

0.135

74

Kerosene

0.135

75.2

Liquefied petroleum gases (LPG)

0.092

62.98

Propane

0.091

61.46

Propylene

0.091

65.95

Ethane

0.069

62.64

Ethanol

0.084

68.44

Ethylene

0.1

67.43

Isobutane

0.097

64.91

Isobutylene

0.103

67.74

Butane

0.101

65.15

Butylene

0.103

67.73

Naphtha (<401 deg F)

0.125

68.02

Natural Gasoline

0.11

66.83

Other Oil (>401 deg F)

0.139

76.22

Pentanes Plus

0.11

70.02

Petrochemical Feedstocks

0.129

70.97

Petroleum Coke

0.143

102.41

Special Naphtha

0.125

72.34

Unfinished Oils

0.139

74.49

Heavy Gas Oils

0.148

74.92

Lubricants

0.144

74.27

Motor Gasoline

0.125

70.22

Aviation Gasoline

0.12

69.25

Kerosene-Type Jet Fuel

0.135

72.22

Asphalt and Road Oil

0.158

75.36

Crude Oil

0.138

74.49

Other fuels-solid

mmBtu/short ton

kg CO2/mmBtu

Municipal Solid Waste

9.951

90.7

Tires

26.87

85.97

Plastics

38

75

Petroleum Coke

30

102.41

Other fuels—gaseous

mmBtu/scf

kg CO2/mmBtu

Blast Furnace Gas

0.092 × 10-03

274.32

Coke Oven Gas

0.599 × 10-03

46.85

Propane Gas

2.516 × 10-03

61.46

Fuel Gas2

1.388 × 10-03

59

Biomass fuels—solid

mmBtu/short ton

kg CO2/mmBtu

Wood and Wood Residuals

15.38

93.8

Agricultural Byproducts

8.25

118.17

Peat

8

111.84

Solid Byproducts

25.83

105.51

Biomass fuels—gaseous

mmBtu/scf

kg CO2/mmBtu

Biogas (Captured methane)

0.841 × 10-03

52.07

Biomass Fuels—Liquid

mmBtu/gallon

kg CO2/mmBtu

Ethanol

0.084

68.44

Biodiesel

0.128

73.84

Biodiesel (100%)

0.128

73.84

Rendered Animal Fat

0.125

71.06

Vegetable Oil

0.12

81.55

1Use of this default HHV is allowed only for: (a) Units that combust MSW, do not generate steam, and are allowed to use Tier 1; (b) units that derive no more than 10 percent of their annual heat input from MSW and/or tires; and (c) small batch incinerators that combust no more than 1,000 tons of MSW per year.

2Reporters subject to subpart X of this part that are complying with §98.243(d) or subpart Y of this part may only use the default HHV and the default CO2 emission factor for fuel gas combustion under the conditions prescribed in §98.243(d)(2)(i) and (d)(2)(ii) and §98.252(a)(1) and (a)(2), respectively. Otherwise, reporters subject to subpart X or subpart Y shall use either Tier 3 (Equation C–5) or Tier 4.

[74 FR 56374, Oct. 30, 2009, as amended at 75 FR 79153, Dec. 17, 2010]

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