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Table 1 Natural gas composition

From: Optimization of operating conditions of CO2-enhanced gas recovery and carbon sequestration

CompoundsCompounds formulamol%molMr
MethaneCH494.360.943616.043
EthaneC2H62.370.023730.07
PropaneC3H80.150.001544.097
Iso-butaneC4H100.0170.0001758.124
N-ButaneC4H100.0220.0002258.124
Iso-pentaneC5H120.0090.0000972.151
Hexane+C6H140.0150.0001586.178
HeliumHe0.0870.000874.003
HydrogenH20.010.00012.016
NitrogenN22.920.029228.014
Carbon dioxideCO20.040.000444.009