FRANCESCONI Javier Andres
congresos y reuniones científicas
Dynamic simulation for the operation of reactive distillation columns with multiple steady states: The Ethylene Glycol Case
NICOLÁS J. SCENNA; SONIA J. BENZ; JAVIER A. FRANCESCONI; SERGIO A. TINDIGLIA
Santa Fe (Argentina)
Congreso; EMPROMER 2001: 3rd Mercosur Congress on Process Systems Engineering. 1st Mercosur Congress on Chemical Engineering; 2001
The operability of reactive distillation columns with output multiple steady states during their start-up is analyzed by dynamic simulation. The behavior of the multiplicity of solutions is analyzed from the procedures point of view. Various steady states are reached by applying different start-up configurations and policies, which imply different sets of feed streams or sets of manual actions of opening/closing valves, respectively. The well-known Ethylene Glycol production system presenting multiple solutions at steady state (Ciric & Miao, 1994) is studied in this paper. The transient responses of the reactive distillation column yielding different steady states during start-up operation are also shown. By examining the alternatives studied in this work, the aim is to show how a startup policy/configuration can improve or debase the overall process.