Premium
Dynamic simulation of azeotropic distillation towers
Author(s) -
Prokopakis G. J.,
Seider W. D.
Publication year - 1983
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690290622
Subject(s) - azeotropic distillation , dynamic simulation , distillation , extractive distillation , fractionating column , petroleum engineering , environmental science , process engineering , chemistry , computer science , chromatography , geology , simulation , engineering
Algorithms are presented for integration of the stiff ordinary differential equations using an adaptive semi‐implicit Runge‐Kutta (ASIRK) integrator; an A‐stable, single‐step, noniterative algorithm with step‐size control. Unusual open loop responses are encountered for simulations of azeotropic distillation towers and the results suggest two control variables. The results support the contention that one steady‐state regime of operation is unstable.