40 CFR Appendix Table 1 to Subpart Ja of Part 60 - Molar Exhaust Volumes and Molar Heat Content of Fuel Gas Constituents

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Table 1 to Subpart Ja of Part 60—Molar Exhaust Volumes and Molar Heat Content of Fuel Gas Constituents
Constituent MEV a
dscf/mol 		MHC b
Btu/mol
Methane (CH4) 7.29 842
Ethane (C2H6) 12.96 1,475
Hydrogen (H2) 1.61 269
Ethene (C2H4) 11.34 1,335
Propane (C3H8) 18.62 2,100
Propene (C3H6) 17.02 1,947
Butane (C4H10) 24.30 2,717
Butene (C4H8) 22.69 2,558
Inerts 0.85 0

a MEV = molar exhaust volume, dry standard cubic feet per gram-mole (dscf/g-mol) at standard conditions of 68 °F and 1 atmosphere.

b MHC = molar heat content (higher heating value basis), Btu per gram-mole (Btu/g-mol).

[77 FR 56480, Sep. 12, 2012]