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]