Separating Mixture Glycols in DWC with Flow Rate-Composition Cascade Control Structure
Dividing wall column (DWC) is an advanced technology which could decrease energy consumption. As the vertical wall inserted in DWC increases the degree of freedom of systems, the control becomes more difficult than the conventional columns. In this study, the mixture glycols (1, 2-propanediol+ 1, 3-...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-01-01
|
| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2022/3915508 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832555208344862720 |
|---|---|
| author | Zhihui Ma Yanyang Wu Jianyuan Xu Kui Chen Bin Wu Lijun Ji |
| author_facet | Zhihui Ma Yanyang Wu Jianyuan Xu Kui Chen Bin Wu Lijun Ji |
| author_sort | Zhihui Ma |
| collection | DOAJ |
| description | Dividing wall column (DWC) is an advanced technology which could decrease energy consumption. As the vertical wall inserted in DWC increases the degree of freedom of systems, the control becomes more difficult than the conventional columns. In this study, the mixture glycols (1, 2-propanediol+ 1, 3-butanediol+ 1, 4-butanediol) were taken as feed, an optimized DWC structure was proposed, and three control structures for DWC were tested by ± 10% feed disturbances. The temperature control structure (CS1) was hard to control the system while composition control structure (CS2) and flow rate-composition cascade control structure (CS3) had good performance on controlling the DWC. It showed that CS3 was superior to CS2, as CS3 could stabilize the DWC within 4 hours, and the maximum deviations of the three products, namely 1, 2-propanediol, 1, 3-butanediol and 1, 4-butanediol, were 0.07%, 1.44%, and 0.46% respectively, while CS2 could realize the stability within 7 hours, and the corresponding numbers were 0.35%, 2.78%, and 0.41%, respectively. |
| format | Article |
| id | doaj-art-d717329c232348e5bbe8dd9e86b40cc7 |
| institution | Kabale University |
| issn | 2090-9071 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-d717329c232348e5bbe8dd9e86b40cc72025-02-03T05:49:20ZengWileyJournal of Chemistry2090-90712022-01-01202210.1155/2022/3915508Separating Mixture Glycols in DWC with Flow Rate-Composition Cascade Control StructureZhihui Ma0Yanyang Wu1Jianyuan Xu2Kui Chen3Bin Wu4Lijun Ji5Chemical Engineering Research CenterChemical Engineering Research CenterChemical Engineering Research CenterChemical Engineering Research CenterChemical Engineering Research CenterChemical Engineering Research CenterDividing wall column (DWC) is an advanced technology which could decrease energy consumption. As the vertical wall inserted in DWC increases the degree of freedom of systems, the control becomes more difficult than the conventional columns. In this study, the mixture glycols (1, 2-propanediol+ 1, 3-butanediol+ 1, 4-butanediol) were taken as feed, an optimized DWC structure was proposed, and three control structures for DWC were tested by ± 10% feed disturbances. The temperature control structure (CS1) was hard to control the system while composition control structure (CS2) and flow rate-composition cascade control structure (CS3) had good performance on controlling the DWC. It showed that CS3 was superior to CS2, as CS3 could stabilize the DWC within 4 hours, and the maximum deviations of the three products, namely 1, 2-propanediol, 1, 3-butanediol and 1, 4-butanediol, were 0.07%, 1.44%, and 0.46% respectively, while CS2 could realize the stability within 7 hours, and the corresponding numbers were 0.35%, 2.78%, and 0.41%, respectively.http://dx.doi.org/10.1155/2022/3915508 |
| spellingShingle | Zhihui Ma Yanyang Wu Jianyuan Xu Kui Chen Bin Wu Lijun Ji Separating Mixture Glycols in DWC with Flow Rate-Composition Cascade Control Structure Journal of Chemistry |
| title | Separating Mixture Glycols in DWC with Flow Rate-Composition Cascade Control Structure |
| title_full | Separating Mixture Glycols in DWC with Flow Rate-Composition Cascade Control Structure |
| title_fullStr | Separating Mixture Glycols in DWC with Flow Rate-Composition Cascade Control Structure |
| title_full_unstemmed | Separating Mixture Glycols in DWC with Flow Rate-Composition Cascade Control Structure |
| title_short | Separating Mixture Glycols in DWC with Flow Rate-Composition Cascade Control Structure |
| title_sort | separating mixture glycols in dwc with flow rate composition cascade control structure |
| url | http://dx.doi.org/10.1155/2022/3915508 |
| work_keys_str_mv | AT zhihuima separatingmixtureglycolsindwcwithflowratecompositioncascadecontrolstructure AT yanyangwu separatingmixtureglycolsindwcwithflowratecompositioncascadecontrolstructure AT jianyuanxu separatingmixtureglycolsindwcwithflowratecompositioncascadecontrolstructure AT kuichen separatingmixtureglycolsindwcwithflowratecompositioncascadecontrolstructure AT binwu separatingmixtureglycolsindwcwithflowratecompositioncascadecontrolstructure AT lijunji separatingmixtureglycolsindwcwithflowratecompositioncascadecontrolstructure |