The interaction parameters between
two components need to be first
determined to obtain the thermophysical properties of the binary mixtures.
In this paper, the research progresses of the binary interaction parameter
for CO
2
and hydrocarbons (HCs) and their related mixtures
are illustrated. Aiming at the physical property prediction of CO
2
/alkanes (C
1
–C
10
) binary mixtures
in pseudocritical regions, the experimental data of CO
2
/alkanes (C
1
–C
10
) in the pseudocritical
region available in the open literature are collected. Besides, the
calculation of
k
ij
is
carried out by five typically accepted correlations selected from
the literature. The effects of temperature, pressure, carbon number,
and acentric factor on
k
ij
are investigated. By researching the influence of the above five
factors on
k
ij
, it reveals
that temperature is the most important one. Considering the influence
of the critical temperatures of mixtures, a simple correlation is
proposed to evaluate
k
ij
for light HC mixtures in the pseudocritical region.