Phase Behavior and Physical Parameters of Natural Gas Mixture with

Table 2

Composition of various gas mixtures and the critical properties of the related component.

Components	Gas1	YP9	Gas2	Gas3
	(mol%)	(mol%)	(mol%)	(mol%)	(MPa)	(K)
CO2	10.045	21.746	55.535	75.323	7.376	304.2	0.225
N2	1.474	2.71	2.056	0.971	3.394	126.2	0.040
C1	84.718	73.604	40.891	23.014	4.600	190.6	0.008
C2	2.973	1.127	0.941	0.422	4.884	305.4	0.098
C3	0.532	0.492	0.235	0.092	4.246	369.8	0.152
iC4	0.064	0.006	0.299	0.034	3.640	408.1	0.176
nC4	0.058	0.301	0.004	0.042	3.800	425.2	0.193
iC5	0.026	0.003	0.005	0.047	3.384	460.4	0.227
nC5	0.052	0.005	0.003	0.033	3.374	469.6	0.251
C6	0.058	0.006	0.031	0.022	2.969	507.4	0.296

Note: gas sample with CO₂ content of 10.045 mol% is made from YP9 and dry natural gas, and gas sample with CO₂ content of 55.535 mol% or 75.323 mol% is made from YP9 and pure industrial carbon dioxide (purity > 99.99%).