Part I of this paper was published in AIChE J., 22, 1055 (1976), and Part II appeared in AIChE J., 23, 840 (1977).
Equilibrium staged parametric pumping: Part III. Open systems at steady-state-McCabe-Thiele diagrams
Article first published online: 17 JUN 2004
Copyright © 1980 American Institute of Chemical Engineers
Volume 26, Issue 1, pages 120–131, January 1980
How to Cite
Grevillot, G. (1980), Equilibrium staged parametric pumping: Part III. Open systems at steady-state-McCabe-Thiele diagrams. AIChE J., 26: 120–131. doi: 10.1002/aic.690260119
- Issue published online: 17 JUN 2004
- Article first published online: 17 JUN 2004
- Manuscript Accepted: 3 JAN 1979
- Manuscript Revised: 8 DEC 1978
- Manuscript Received: 3 JAN 1978
The theory of equilibrium staged parametric pumps with discrete fluid transfers has been presented in previous papers for total reflux. Here, it is extended to open, fractionating systems, operating in cyclic steady state. The cases of and enriching section, a stripping section, and a complete fractionating apparatus are successively considered. Providing adequate variables are defined, the result is a diagram which plays the same role as the McCabe-Thiele diagram in distillation. The optimal feed stage location, the minimum reflux, and the separation factor for given operating conditions are determined analytically and graphically in the case of linear equilibrium isotherms. The method is then generalized to non-linear equilibria, particularly of constant relative volatility type.