Reactive Distillation in a Dividing-Wall Column: Model Development, Simulation, and Error Analysis

2017 ◽  
Vol 89 (10) ◽  
pp. 1315-1324 ◽  
Author(s):  
Erik von Harbou ◽  
Oliver Ryll ◽  
Marc Schrabback ◽  
Michael Bortz ◽  
Hans Hasse
Keyword(s):  
Error Analysis ◽  
Reactive Distillation ◽  
Model Development ◽  
Dividing Wall Column ◽  
Column Model

A novel type of equipment for reactive distillation: Model development, simulation, sensitivity and error analysis

AIChE Journal ◽  
2012 ◽  
Vol 59 (5) ◽  
pp. 1533-1543 ◽  
Author(s):  
Erik von Harbou ◽  
Markus Schmitt ◽  
Christoph Großmann ◽  
Hans Hasse
Keyword(s):  
Error Analysis ◽  
Reactive Distillation ◽  
Model Development

scholarly journals The E3SM version 1 single-column model

2020 ◽  
Vol 13 (9) ◽  
pp. 4443-4458
Author(s):  
Peter A. Bogenschutz ◽  
Shuaiqi Tang ◽  
Peter M. Caldwell ◽  
Shaocheng Xie ◽  
Wuyin Lin ◽  
...  
Keyword(s):  
General Circulation ◽  
Model Development ◽  
Circulation Model ◽  
System Model ◽  
Earth System ◽  
Efficient Tool ◽  
Column Model ◽  
Community Atmosphere Model ◽  
Single Column ◽  
Single Column Model

Abstract. The single-column model (SCM) functionality of the Energy Exascale Earth System Model version 1 (E3SMv1) is described in this paper. The E3SM SCM was adopted from the SCM used in the Community Atmosphere Model (CAM) but has evolved significantly since then. We describe changes made to the aerosol specification in the SCM, idealizations, and developments made so that the SCM uses the same dynamical core as the full general circulation model (GCM) component. Based on these changes, we describe and demonstrate the seamless capability to “replay” a GCM column using the SCM. We give an overview of the E3SM case library and briefly describe which cases may serve as useful proxies for replicating and investigate some long-standing biases in the full GCM runs while demonstrating that the E3SM SCM is an efficient tool for both model development and evaluation.

Parallel column model for Dividing Wall Column simulations

2019 ◽  
Vol 125 ◽  
pp. 114-133 ◽  
Author(s):  
J. Zhou ◽  
H.A. Kooijman ◽  
R. Taylor
Keyword(s):  
Dividing Wall Column ◽  
Column Model

scholarly journals A port-stream based equation oriented modelling of complex distillation column: A dividing wall column case study

2020 ◽  
Vol 3 (2) ◽  
pp. 68
Author(s):  
R. Idris ◽  
N. Harun ◽  
Mohamad Rizza Othman
Keyword(s):  
Fatty Acid ◽  
Case Studies ◽  
Focal Point ◽  
Model Development ◽  
Flow Sheet ◽  
Dividing Wall Column ◽  
Good Convergence ◽  
Modelling Methodology ◽  
Control Configuration ◽  
Fatty Acid Fractionation

Dividing wall column (DWC) offers higher degree of freedom in comparison with the conventional column. Furthermore, the different sections configurations within the column are highly interacting with several recycle loops. Facing with such complex unit operation, describing its behaviour encourages the focal point on the resolution of ideal modelling approaches. Equation oriented (EO) modelling of DWC has been studied by several researchers involving complex algorithm and methodology. In this work, a new approach for modelling of DWC is presented. The modelling methodology involves variables connectivity based on ports and streams that is admissible to equation-oriented flow sheet. To verify the functionality of the proposed method, the modelled DWC is validated with two case studies depicted from experimental literature data to separate alcohol mixture and fatty acid fractionation. The model development was performed in MOSAIC, a web-based modelling tool and run in gPROMS. The model shows good convergence and has less than 10% error when compared to the above mentioned case studies. To furthermore extend the model capability, relative gain array (RGA) analysis was conducted for the fatty acid fractionation to determine the best control configuration in DWC. Result shows that L-S-V and L-S-B configurations are the best control configurations. Our analysis also shows that reflux flowrate, side flowrate and vapor boilup are best to control distillate product, side product and bottom product, respectively.

scholarly journals Pressure Swing-Based Reactive Distillation and Dividing Wall Column for Improving Manufacture of Propylene Glycol Monomethyl Ether Acetate

Energies ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 7416
Author(s):  
Yus Donald Chaniago ◽  
Le Cao Nhien ◽  
Ahmad Naquash ◽  
Amjad Riaz ◽  
Gwang Sik Kim ◽  
...  
Keyword(s):  
Propylene Glycol ◽  
Reactive Distillation ◽  
Semiconductor Industry ◽  
Monomethyl Ether ◽  
Heat Integration ◽  
Glycol Monomethyl Ether ◽  
Strong Basis ◽  
Dividing Wall Column ◽  
Conventional Process ◽  
Pressure Swing

Propylene glycol monomethyl ether acetate (PGMEA) is a commonly used solvent in the rapidly developing semiconductor industry. Ultra-high purity PGMEA is required for this ultra-precision industry and to satisfy the current strict waste management regulations. The traditional PGMEA production process consumes considerable energy and has a high production cost. In this study, a novel heat integrated and intensified design, which applies a dividing wall column, reactive distillation, and pressure swing techniques, was proposed for improving the energy efficiency and reducing the cost of PGMEA production. Heat integration was applied to maximize the heat recovery of the process. All processes were simulated using the commercial simulator Aspen Plus V11. The economic and environmental parameters of the process alternative were assessed for a fair comparison with the conventional process. The results showed that heat integration of the optimal pressure swing-based reactive distillation and dividing wall column processes could reduce the energy requirement and TAC by 29.5%, and 20.8%, respectively, compared to that of the optimal conventional process. The improved design provides a strong basis for achieving more sustainable PGMEA production.

scholarly journals The E3SM version 1 Single Column Model

2020 ◽  
Author(s):  
Peter A. Bogenschutz ◽  
Shuaiqi Tang ◽  
Peter M. Caldwell ◽  
Shaocheng Xie ◽  
Wuyin Lin ◽  
...  
Keyword(s):  
General Circulation ◽  
Model Development ◽  
Circulation Model ◽  
System Model ◽  
Earth System ◽  
Efficient Tool ◽  
Column Model ◽  
Community Atmosphere Model ◽  
Single Column ◽  
Single Column Model

Abstract. The single column model (SCM) functionality of the Energy Exascale Earth System Model version 1 (E3SMv1) is described in this paper. The E3SM SCM was adopted from the SCM used in the Community Atmosphere Model (CAM), but has evolved significantly since then. We describe changes made to the aerosol specification in the SCM, idealizations, and developments made so that the SCM uses the same dynamical core as the full general circulation model (GCM) component. Based on these changes, we describe and demonstrate the seamless capability to ``replay" a GCM column using the SCM. We give an overview of the E3SM case library and briefly describe which cases may serve as useful proxies for replicating and investigate some long standing biases in the full GCM runs, while demonstrating that the E3SM SCM is an efficient tool for both model development and evaluation.

scholarly journals A post-stream based equation oriented modelling of complex distillation column: a dividing wall column case study

2018 ◽  
Vol 2 (2) ◽  
Author(s):  
R. Idris ◽  
N. Harun ◽  
Mohamad Rizza Othman
Keyword(s):  
Fatty Acid ◽  
Case Studies ◽  
Focal Point ◽  
Model Development ◽  
Flow Sheet ◽  
Dividing Wall Column ◽  
Good Convergence ◽  
Modelling Methodology ◽  
Control Configuration ◽  
Fatty Acid Fractionation

Dividing wall column (DWC) offers higher degree of freedom in comparison with the conventional column. Furthermore, the different sections configurations within the column are highly interacting with several recycle loops. Facing with such complex unit operation, describing its behaviour encourages the focal point on the resolution of ideal modelling approaches. Equation oriented (EO) modelling of DWC has been studied by several researchers involving complex algorithm and methodology. In this work, a new approach for modelling of DWC is presented. The modelling methodology involves variables connectivity based on ports and streams that is admissible to equation-oriented flow sheet. To verify the functionality of the proposed method, the modelled DWC is validated with two case studies depicted from experimental literature data to separate alcohol mixture and fatty acid fractionation. The model development was performed in MOSAIC, a web-based modelling tool and run in gPROMS. The model shows good convergence and has less than 10% error when compared to the abovementioned case studies. To furthermore extend the model capability, relative gain array (RGA) analysis was conducted for the fatty acid fractionation to determine the best control configuration in DWC. Result shows that L-S-V and L-S-B configurations are the best control configurations. Our analysis also shows that reflux flowrate, side flowrate and vapor boilup are best to control distillate product, side product and bottom product respectively.

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