Answers are grounded in this paper and cite their sources.
Experimental analysis demonstrates preferential adsorption and macropore-controlled transport of propylene over propane in 5A zeolite pellets, indicating potential for olefin-paraffin separation.
Equilibrium and kinetic data for propane and propylene adsorption in pellets (Grace Davison) and crystals (PQ Corp.) of 5A zeolite are presented in the temperature range 323−423 K. The pellet adsorption loading measured by gravimetry is 1.7 mmol/g for propylene and 1.3 mmol/g for propane at 100 kPa and 423 K. The selectivity for propylene increases with temperature and is in the range 1.08−1.35 at 100 kPa, being higher at lower pressures. The kinetic data measured by zero-length-column (ZLC) chromatography indicate that the transport of sorbate in the pellets is controlled by macropore diffusion; pore diffusivities are in the range 0.018−0.027 cm 2 /s for both gases. Crystal diffusivities are in the range (1.1−7.2) × 10 -11 cm 2 /s for propane and (0.2−6.2) × 10 -11 cm 2 /s for propylene.
No takes yet. Share an insight, caveat, or question.
Grande et al. (2001) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: