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Review Article

Recent Advances in Carbon-Based Adsorbents for Adsorptive Separation of Light Hydrocarbons

Table 1

Physical properties of light hydrocarbons of C1 to C4 [4].

AdsorbateBoiling point (K)Kinetic diameter (Å)Dipole moment (×1018esu cm)Polarizability (×10-25cm3)Application background

CH4111.63.8025.9Natural gas purification
C2H6184.64.4044.3Producing high-purity ethylene
C2H4169.44.2042.5
C3H8231.04.3-5.10.08462.9Producing high-purity propylene
C3H6225.54.70.36662.9
n-C4H10272.74.70.0582.0Paraffin separation of normal paraffin from iso-paraffins
i-C4H10261.35.30.13281.4-82.9
n-C4H8266.94.50.359-0.43879.7-85.2Olefin separation
i-C4H8266.34.80.50178.9
C4H6268.65.2086.4Removal of dienes from olefins