Comparison of adsorption behaviour of light alkanes and alkenes on Kureha activated carbon

作者: W. Zhu , J.C. Groen , A. van Miltenburg , F. Kapteijn , J.A. Moulijn

DOI: 10.1016/J.CARBON.2005.01.010

关键词: AdsorptionPhysical chemistryPropaneAlkeneChemistryInorganic chemistryPropeneSaturation (chemistry)SelectivityAlkaneActivated carbon

摘要: Adsorption equilibria of light alkanes and alkenes on Kureha activated carbon were investigated using a volumetric method. Single-component adsorption isotherms are reported at pressures up to 120 kPa temperatures in the range from 194 338 K for ethane ethene 273 358 propane propene. The Toth model appropriately describes equilibrium data over whole conditions. saturation capacity alkene extracted by is higher than corresponding alkane, attributed packing efficiency molecules inside micropores. An interesting reversal alkane/alkene selectivity with pressure observed: low towards driven energetic effects while high due entropic effects.

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