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ID: 112022.0, MPI für Dynamik komplexer technischer Systeme / Process Synthesis and Process Dynamics
Low-order dynamic models for two coupled distillation columns
Authors:Kienle, A.; Stein, E.; Rehm, A.; Kloppenburg, E.
Language:English
Publisher:rubicon
Place of Publication:Aachen
Date of Publication (YYYY-MM-DD):1999
Title of Proceedings:Proceedings of the 5th European Control Conference ECC`99
Physical Description:CD-ROM
Name of Conference/Meeting:5th European Control Conference ECC`99
Place of Conference/Meeting:Karlsruhe/Germany
(Start) Date of Conference/Meeting
 (YYYY-MM-DD):
1999-08-31
End Date of Conference/Meeting 
 (YYYY-MM-DD):
1999-09-03
Review Status:not specified
Audience:Experts Only
Intended Educational Use:No
Abstract / Description:Nonlinear low-order models are developed for two coupled distillation columns separating a ternary mixture of methanol, ethanol and 1-propanol. The approach is based on well-known spatio temporal pattern formation phenomena in distillation processes also termed as nonlinear wave propagation. In a first step, the energy balance is neglected assuming constant molar flow rates in each column section. Further, constant molar holdups are assumed. In a second step, the wave approach is extended for columns with variable flow rates and constant volumetric holdups. It is shown that these assumptions are more realistic for the process considered here. In both cases the low-order models are in good agreement with the corresponding reference models with constant and variable flow rates, respectively. Further, the reduction of the system order is considerable in both cases.
External Publication Status:published
Document Type:Conference-Paper
Communicated by:Achim Kienle
Affiliations:MPI für Dynamik komplexer technischer Systeme/Process Synthesis and Process Dynamics
Identifiers:LOCALID:32
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