scholarly journals Synthesis of Ternary Homogeneous Azeotropic Distillation Sequences: Entrainer Selection

2012 ◽  
Vol 12 (1) ◽  
pp. 20
Author(s):  
Sutijan Sutijan ◽  
Megan Jobson ◽  
Robin Smith
Keyword(s):  
Classification System ◽  
Selection Criteria ◽  
Azeotropic Distillation ◽  
Ternary Mixtures ◽  
New Classification ◽  
Automatic Selection ◽  
Azeotropic Mixtures ◽  
Selection Of

This paper presents a methodology for automatic selection of entrainers for separating binary azeotropic mixtures using homogeneous azeotropic distillation. A new classification system for ternary mixtures based on the termini of distillation boundaries and the type (stability) of products and azeotropes is proposed. The new characterisation system is able to link candidate entrainers to flowsheet structures which can facilitate the separation. Existing entrainer selection criteria are extended to accommodate other promising entrainers, including light, intermediate and heavy-boiling entrainers.

scholarly journals Synthesis of Ternary Homogeneous Azeotropic Distillation Sequences: 2. Flowsheet Identification

2013 ◽  
Vol 13 (1) ◽  
pp. 43
Author(s):  
Sutijan Sutijan ◽  
Megan Jobson ◽  
Robin Smith
Keyword(s):  
Classification System ◽  
Ternary Mixture ◽  
Azeotropic Distillation ◽  
Ternary Mixtures ◽  
Boundary Crossing ◽  
New Classification ◽  
Azeotropic Mixtures ◽  
Systematic Methodology ◽  
Pressure Swing ◽  
Pressure Swing Distillation

This paper presents a systematic methodology for flowsheet generation for separating binary azeotropic mixtures using homogeneous azeotropic distillation. A new classification system for ternary mixtures using ‘standard distillation line maps’ defined in Sutijan et al. (2012) is employed. The new characterisation system is able to link candidate entrainers to flowsheet structures which can facilitate the separation. The sequences considered include pressure-swing distillation, two and three-column flowsheets with or without boundary crossing and the use of single and double-feed columns. For a given ternary mixture, suitable flowsheet structures that can facilitate the separation can be automatically identified. The method is illustrated using examples.

Correlation between New Classification System for Reflux Laryngopharyngitis and Los Angeles Classification System for Reflux Esophagitis

2009 ◽  
Vol 60 (3) ◽  
pp. 268-275
Author(s):  
Kohei Nishimura ◽  
Hiromasa Fujita ◽  
Toshiaki Tanaka ◽  
Yuichi Tanaka ◽  
Satoru Matono ◽  
...  
Keyword(s):  
Los Angeles ◽  
Reflux Esophagitis ◽  
Classification System ◽  
New Classification ◽  
Los Angeles Classification

Selection of one-dimensional sedimentation: models for on-line use

1995 ◽  
Vol 31 (2) ◽  
pp. 193-204 ◽  
Author(s):  
Koen Grijspeerdt ◽  
Peter Vanrolleghem ◽  
Willy Verstraete
Keyword(s):  
Steady State ◽  
Selection Criteria ◽  
Data Sets ◽  
Concentration Profiles ◽  
A Posteriori ◽  
One Dimensional ◽  
On Line ◽  
Dynamic Concentration ◽  
Selection Of ◽  
Modelling Task

A comparative study of several recently proposed one-dimensional sedimentation models has been made. This has been achieved by fitting these models to steady-state and dynamic concentration profiles obtained in a down-scaled secondary decanter. The models were evaluated with several a posteriori model selection criteria. Since the purpose of the modelling task is to do on-line simulations, the calculation time was used as one of the selection criteria. Finally, the practical identifiability of the models for the available data sets was also investigated. It could be concluded that the model of Takács et al. (1991) gave the most reliable results.

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