Plantwide Control for the Separation of THF-<i>H</i><sub>2</sub><i>O</i> in an Azeotropic Distillation Process
This paper presents a plantwide control strategy for optimizing a pressure-swing azeotropic distillation process used in tetrahydrofuran dehydration. Leveraging Skogestad’s methodology, this strategy focused on two distillation columns: a low-pressure column for water recovery at 20 psia and a high-...
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MDPI AG
2024-12-01
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| Series: | ChemEngineering |
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| Online Access: | https://www.mdpi.com/2305-7084/8/6/127 |
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| author | Moises Ramos-Martinez Gerardo Ortiz-Torres Felipe D. J. Sorcia-Vázquez Carlos Alberto Torres-Cantero Manuela Calixto-Rodriguez Mayra G. Mena-Enriquez Jorge Salvador Valdez Martínez Estela Sarmiento-Bustos Alan Cruz Rojas Jesse Y. Rumbo-Morales |
| author_facet | Moises Ramos-Martinez Gerardo Ortiz-Torres Felipe D. J. Sorcia-Vázquez Carlos Alberto Torres-Cantero Manuela Calixto-Rodriguez Mayra G. Mena-Enriquez Jorge Salvador Valdez Martínez Estela Sarmiento-Bustos Alan Cruz Rojas Jesse Y. Rumbo-Morales |
| author_sort | Moises Ramos-Martinez |
| collection | DOAJ |
| description | This paper presents a plantwide control strategy for optimizing a pressure-swing azeotropic distillation process used in tetrahydrofuran dehydration. Leveraging Skogestad’s methodology, this strategy focused on two distillation columns: a low-pressure column for water recovery at 20 psia and a high-pressure column that achieved 0.99 molar fraction purity of tetrahydrofuran at 115 psia. This study identified critical control variables through plant analysis by implementing PI controllers in the regulatory control layer to stabilize flows and pressures. In the supervisory control layer, a PI controller combined with MIMO MPC effectively enhanced the product purity and reduced the energy consumption by 36%. Stable inlet and outlet flow conditions (100 lbmol/hr inlet, 29.59 lbmol/hr outlet) were maintained without compromising the equipment integrity. The operational ranges for the process included variations in the tetrahydrofuran mole fraction from 0.25 to 0.35 at the inlet, which demonstrated a robust performance across perturbations. These achievements signify significant advancements in process efficiency and sustainability, offering substantial reductions in energy usage while ensuring consistent high purity levels in tetrahydrofuran production. The developed control structure sets a new standard for efficient azeotropic distillation processes, with implications for enhancing operational performance across industrial applications. |
| format | Article |
| id | doaj-art-9c2b5cf35b6b41be8b60dcfbc5e566b7 |
| institution | Kabale University |
| issn | 2305-7084 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | ChemEngineering |
| spelling | doaj-art-9c2b5cf35b6b41be8b60dcfbc5e566b72024-12-27T14:16:56ZengMDPI AGChemEngineering2305-70842024-12-018612710.3390/chemengineering8060127Plantwide Control for the Separation of THF-<i>H</i><sub>2</sub><i>O</i> in an Azeotropic Distillation ProcessMoises Ramos-Martinez0Gerardo Ortiz-Torres1Felipe D. J. Sorcia-Vázquez2Carlos Alberto Torres-Cantero3Manuela Calixto-Rodriguez4Mayra G. Mena-Enriquez5Jorge Salvador Valdez Martínez6Estela Sarmiento-Bustos7Alan Cruz Rojas8Jesse Y. Rumbo-Morales9Departamento de Ciencias Computacionales e Ingenierías, Universidad de Guadalajara, Carretera Guadalajara-Ameca Km. 45.5, Ameca 46600, Jalisco, MexicoDepartamento de Ciencias Computacionales e Ingenierías, Universidad de Guadalajara, Carretera Guadalajara-Ameca Km. 45.5, Ameca 46600, Jalisco, MexicoDepartamento de Ciencias Computacionales e Ingenierías, Universidad de Guadalajara, Carretera Guadalajara-Ameca Km. 45.5, Ameca 46600, Jalisco, MexicoTecnológico Nacional de Mexico Campus Colima, Av. Tecnológico # 1, Col. Liberación, Villa de Álvarez 28976, Colima, MexicoDivisión Académica de Mecánica Industrial, Universidad Tecnológica Emiliano Zapata del Estado de Morelos, Av. Universidad Tecnológica No. 1, Col. Palo Escrito, Emiliano Zapata 62765, Morelos, MexicoBiomedical Sciences Department, Universidad de Guadalajara, Tonalá 45425, Jalisco, MexicoDivisión Académica de Mecánica Industrial, Universidad Tecnológica Emiliano Zapata del Estado de Morelos, Av. Universidad Tecnológica No. 1, Col. Palo Escrito, Emiliano Zapata 62765, Morelos, MexicoDivisión Académica de Mecánica Industrial, Universidad Tecnológica Emiliano Zapata del Estado de Morelos, Av. Universidad Tecnológica No. 1, Col. Palo Escrito, Emiliano Zapata 62765, Morelos, MexicoDepartamento de Ciencias Computacionales e Ingenierías, Universidad de Guadalajara, Carretera Guadalajara-Ameca Km. 45.5, Ameca 46600, Jalisco, MexicoDepartamento de Ciencias Computacionales e Ingenierías, Universidad de Guadalajara, Carretera Guadalajara-Ameca Km. 45.5, Ameca 46600, Jalisco, MexicoThis paper presents a plantwide control strategy for optimizing a pressure-swing azeotropic distillation process used in tetrahydrofuran dehydration. Leveraging Skogestad’s methodology, this strategy focused on two distillation columns: a low-pressure column for water recovery at 20 psia and a high-pressure column that achieved 0.99 molar fraction purity of tetrahydrofuran at 115 psia. This study identified critical control variables through plant analysis by implementing PI controllers in the regulatory control layer to stabilize flows and pressures. In the supervisory control layer, a PI controller combined with MIMO MPC effectively enhanced the product purity and reduced the energy consumption by 36%. Stable inlet and outlet flow conditions (100 lbmol/hr inlet, 29.59 lbmol/hr outlet) were maintained without compromising the equipment integrity. The operational ranges for the process included variations in the tetrahydrofuran mole fraction from 0.25 to 0.35 at the inlet, which demonstrated a robust performance across perturbations. These achievements signify significant advancements in process efficiency and sustainability, offering substantial reductions in energy usage while ensuring consistent high purity levels in tetrahydrofuran production. The developed control structure sets a new standard for efficient azeotropic distillation processes, with implications for enhancing operational performance across industrial applications.https://www.mdpi.com/2305-7084/8/6/127azeotropic processdistillation columnsdehydrate tetrahydrofuranplantwide control |
| spellingShingle | Moises Ramos-Martinez Gerardo Ortiz-Torres Felipe D. J. Sorcia-Vázquez Carlos Alberto Torres-Cantero Manuela Calixto-Rodriguez Mayra G. Mena-Enriquez Jorge Salvador Valdez Martínez Estela Sarmiento-Bustos Alan Cruz Rojas Jesse Y. Rumbo-Morales Plantwide Control for the Separation of THF-<i>H</i><sub>2</sub><i>O</i> in an Azeotropic Distillation Process ChemEngineering azeotropic process distillation columns dehydrate tetrahydrofuran plantwide control |
| title | Plantwide Control for the Separation of THF-<i>H</i><sub>2</sub><i>O</i> in an Azeotropic Distillation Process |
| title_full | Plantwide Control for the Separation of THF-<i>H</i><sub>2</sub><i>O</i> in an Azeotropic Distillation Process |
| title_fullStr | Plantwide Control for the Separation of THF-<i>H</i><sub>2</sub><i>O</i> in an Azeotropic Distillation Process |
| title_full_unstemmed | Plantwide Control for the Separation of THF-<i>H</i><sub>2</sub><i>O</i> in an Azeotropic Distillation Process |
| title_short | Plantwide Control for the Separation of THF-<i>H</i><sub>2</sub><i>O</i> in an Azeotropic Distillation Process |
| title_sort | plantwide control for the separation of thf i h i sub 2 sub i o i in an azeotropic distillation process |
| topic | azeotropic process distillation columns dehydrate tetrahydrofuran plantwide control |
| url | https://www.mdpi.com/2305-7084/8/6/127 |
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