Dynamic control analysis of intensified extractive distillation process with vapor recompression

2020 ◽  
Vol 233 ◽  
pp. 116016 ◽  
Author(s):  
Qingjun Zhang ◽  
Pengyuan Shi ◽  
Aiwu Zeng ◽  
Youguang Ma ◽  
Xigang Yuan
Keyword(s):  
Dynamic Control ◽  
Extractive Distillation ◽  
Control Analysis ◽  
Distillation Process ◽  
Vapor Recompression

Dynamic control analysis of an eco-efficient side-stream extractive distillation configuration

2020 ◽  
Vol 239 ◽  
pp. 116525 ◽  
Author(s):  
Qingjun Zhang ◽  
Pengyuan Shi ◽  
Wei Hou ◽  
Shunjin Yang ◽  
Aiwu Zeng ◽  
...  
Keyword(s):  
Dynamic Control ◽  
Extractive Distillation ◽  
Control Analysis ◽  
Side Stream

scholarly journals Analysis of Different Pressure Thermally Coupled Extractive Distillation Column

2014 ◽  
Vol 8 (1) ◽  
pp. 12-18 ◽  
Author(s):  
Lanyi Sun ◽  
Kang He ◽  
Yuliang Liu ◽  
Qiuyuan Wang ◽  
Dingding Wang
Keyword(s):  
Sensitivity Analysis ◽  
Distillation Column ◽  
Extractive Distillation ◽  
Total Annual Cost ◽  
Operating Parameters ◽  
The Novel ◽  
Economic Aspects ◽  
Distillation Process ◽  
Aqueous Acetonitrile ◽  
New Process

In this contribution, a different pressure thermally coupled extractive distillation process has been applied on the separation of propylene and propane with aqueous acetonitrile (ACN) solution as entrainer. The novel distillation pro-cess integration is the combination of different pressure thermally coupled distillation (DPTCD) and extractive distillation (ED). Both the new process and the conventional process have been simulated in Aspen Plus. Sensitivity analysis has been conducted to select an appropriate compression ratio and other operating parameters based on the priority that the propylene product purity is 99.2 wt % and less energy consumption. The influence of the proposed distillation column on energetic and economic aspects is evaluated through intensive comparison against the conventional stand-alone column, and better performance is achieved with up to 46.02% energy saving and close to 9.7% saving in total annual cost (TAC).

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