Dynamic behavior of the intensified alternative configurations for quaternary distillation

Ramírez‐Márquez, César; Cabrera-Ruiz, Julián; Segovia‐Hernández, Juan Gabriel; Hernández, Salvador; Errico, Massimiliano; Rong, Ben-Guang

doi:10.1016/j.cep.2016.07.016

Cited by 6 publications

(3 citation statements)

References 27 publications

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“…The SVD technique is used in order to estimate the natural dynamic properties of a system. Numerous works show this technique as a good way to define the dynamics of a system, even with this kind of DWCs with single and double diving wall [37][38][39]. Foremost, the steady-state simulations of the distillation sequences are exported to Aspen Dynamics as flow-driven simulations.…”

Section: Singular Value Decomposition: Control Propertiesmentioning

confidence: 99%

Effects of intensification on process features and control properties of lignocellulosic bioethanol separation and dehydration systems

Torres-Ortega

Ramírez‐Márquez

Sánchez‐Ramírez

et al. 2018

Chemical Engineering and Processing - Process Intensification

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Section: Singular Value Decomposition: Control Propertiesmentioning

confidence: 99%

Effects of intensification on process features and control properties of lignocellulosic bioethanol separation and dehydration systems

Torres-Ortega

Ramírez‐Márquez

Sánchez‐Ramírez

et al. 2018

Chemical Engineering and Processing - Process Intensification

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“…Several works where intensified columns have been used in comparison with conventional configurations show that those complex systems present good control properties. This fact can be attributed to remixing of streams is avoided in the distillation column. − …”

Section: Resultsmentioning

confidence: 99%

Reactive Distillation Column Design for Tetraethoxysilane (TEOS) Production. Part II: Dynamic Properties and Inherent Safety

Palma-Barrera

Sánchez‐Ramírez

Ramírez‐Márquez

et al. 2018

Ind. Eng. Chem. Res.

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Inherent safety and control properties of a reactive distillation column for the production of tetraethoxysilane are compared with those of a conventional process based in a reactordistillation column. The preliminary design of the reactive distillation column and the analysis of total annual cost and environmental indicator were obtained previously [Sańchez-Ramı ́rez et al. Ind. Eng. Chem. Res. 2018, 57, 5024−5034]. The control properties of the sequences considered were obtained by using the singular value decomposition technique and Nyquist criteria. A complementary closed-loop study using PI controller was carried out. The pairing of the variables in the control loops was carried out by the RGA technique. Process risk quantification was determined through hazard and operability study. The results indicate that reactive distillation columns seem a more appropriated technology for tetraethoxysilane production since its economic and control properties surpass those present by the conventional reaction separation process. Moreover, if the required purity for TEOS is between 98.5% and 99 wt % the profit of the process increases. Even though the inherent safe for the conventional process is slightly better, that difference is not high enough for comparative purposes.

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“…The sequences were compared by evaluating the IAE obtained following the methodology suggested by Ramirez‐Marquez et al 37 …”

Section: Methodsmentioning

confidence: 99%

Integrated process design and control of divided‐wall distillation columns using molecular tracking

Ramírez‐Márquez,

Sánchez‐Ramírez,

Nazemzadeh

et al. 2023

AIChE Journal

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This work explores the dynamic and control behavior of dividing wall distillation columns from two different steady‐state design approaches (molecular tracking and optimization method) for three different mixtures. The controllability of the six design cases was evaluated using singular value decomposition and the closed‐loop performance was evaluated using integral absolute error in Aspen Dynamics. The results demonstrate that the side‐draw location obtained by molecular tracking (MT) provides optimal controllability. As a result, there is a slight advantage in control properties while obtaining designs by reducing the time to find the optimal solution through the MT method.

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Dynamic behavior of the intensified alternative configurations for quaternary distillation

Cited by 6 publications

References 27 publications

Effects of intensification on process features and control properties of lignocellulosic bioethanol separation and dehydration systems

Effects of intensification on process features and control properties of lignocellulosic bioethanol separation and dehydration systems

Reactive Distillation Column Design for Tetraethoxysilane (TEOS) Production. Part II: Dynamic Properties and Inherent Safety

Integrated process design and control of divided‐wall distillation columns using molecular tracking

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