The performance of molecular sieve adsorption columns: non-isothermal systems

✍ Scribed by D.M. Ruthven; D.R. Garg; R.M. Crawford

• Publisher: Elsevier Science
• Year: 1975
• Tongue: English
• Weight: 748 KB
• Volume: 30
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(75)80044-3

✦ Synopsis

simple theoretical model is used to calculate dimensionless breakthrough curves and the corresponding temperature profiles for a non-isothermal adsorption column, operating under constant pattern conditions. The model involves three parameters (1, which measures the relative rates of heat and mass transfer, b, which is a heat capacity term and A, which measures the degree of non-linearity of the equilibrium isotherm. The effects of these parameters on the form of the concentration and temperature profiles is investigated. Experimental breakthrough curves for the non-isothermal sorption of propylene, cis-2-butene and I-butene from an inert carrier gas, in a column packed with 5A molecular sieve, are analyzed and interpreted. The heat and mass transfer coefficients, calculated from the experimental curves, are shown to be consistent with independently measured values and conclusions are drawn cobceming the nature of the controlling resistances.