Operation of Dividing-Wall Distillation Columns. 2. A Double Temperature Difference Control Scheme

2013 ◽  
Vol 52 (15) ◽  
pp. 5365-5383 ◽  
Author(s):  
Ning Wu ◽  
Kejin Huang ◽  
Shujun Luan
Keyword(s):  
Temperature Difference ◽  
Distillation Columns ◽  
Control Scheme

scholarly journals Controllability Comparison of the Four-Product Petlyuk Dividing Wall Distillation Column Using Temperature Control Schemes

Processes ◽  
2020 ◽  
Vol 8 (1) ◽  
pp. 116 ◽  
Author(s):  
Xing Qian ◽  
Rui Liu ◽  
Kejin Huang ◽  
Haisheng Chen ◽  
Yang Yuan ◽  
...  
Keyword(s):  
Temperature Control ◽  
Temperature Difference ◽  
Feed Rate ◽  
Distillation Column ◽  
Process Intensification ◽  
Distillation Columns ◽  
Operation Costs ◽  
Control Scheme ◽  
Control Schemes ◽  
Dynamic Performances

An effective process intensification strategy based on dividing walls shows promising energy-saving results for distillation processes. The three-product Petlyuk dividing wall distillation columns (DWDCs) are able to save approximately 30% energy in comparison with the traditional distillation columns. Furthermore, the four-product extended Petlyuk DWDC reduces about 50% of operation costs than conventional distillation sequences. Although researchers have extensively studied control schemes for the three-product Petlyuk DWDC, relatively little work has been done on the four-product extended Petlyuk DWDC. This paper studies feasible temperature control schemes containing temperature control scheme (TC), simplified temperature difference control scheme (STDC), and simplified double temperature difference control scheme (SDTDC) for the four-product extended Petlyuk DWDC. STDC and SDTDC are introduced so as to improve the dynamic performances with simple control schemes. All three control schemes are tested against a series of feed compositions and feed rate disturbances. Dynamic performances prove that the proposed STDC and SDTDC schemes are better at handling the inserted feed disturbances. These are very encouraging results for industrialization of the four-product extended Petlyuk DWDC in the future.

Backstepping-based cascade control scheme for batch distillation columns

AIChE Journal ◽  
2004 ◽  
Vol 50 (9) ◽  
pp. 2113-2129 ◽  
Author(s):  
Rosendo Monroy-Loperena ◽  
Jose Alvarez-Ramirez
Keyword(s):  
Cascade Control ◽  
Batch Distillation ◽  
Distillation Columns ◽  
Control Scheme

Configuring Effectively Double Temperature Difference Control Schemes for Distillation Columns

2017 ◽  
Vol 56 (32) ◽  
pp. 9143-9155 ◽  
Author(s):  
Yang Yuan ◽  
Kejin Huang ◽  
Haisheng Chen ◽  
Liang Zhang ◽  
Shaofeng Wang
Keyword(s):  
Temperature Difference ◽  
Distillation Columns ◽  
Control Schemes
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