Internal Heat Integration and Controllability of Double Feed Reactive Distillation Columns, 1. Effect of Feed Tray Location

2008 ◽  
Vol 47 (19) ◽  
pp. 7294-7303 ◽  
Author(s):  
M. V. Pavan Kumar ◽  
N. Kaistha
Keyword(s):  
Reactive Distillation ◽  
Internal Heat ◽  
Heat Integration ◽  
Distillation Columns ◽  
Internal Heat Integration ◽  
Feed Tray

Interpreting the dynamic effect of internal heat integration on reactive distillation columns

2017 ◽  
Vol 25 (1) ◽  
pp. 89-102 ◽  
Author(s):  
Yang Yuan ◽  
Liang Zhang ◽  
Haisheng Chen ◽  
Shaofeng Wang ◽  
Kejin Huang ◽  
...  
Keyword(s):  
Reactive Distillation ◽  
Internal Heat ◽  
Dynamic Effect ◽  
Heat Integration ◽  
Distillation Columns ◽  
Internal Heat Integration

Superimposition of Elementary Thermodynamic Cycles and Separation of the Heat Transfer Section in Energy Systems Analysis

2013 ◽  
Vol 135 (2) ◽  
Author(s):  
Matteo Morandin ◽  
Andrea Toffolo ◽  
Andrea Lazzaretto
Keyword(s):  
Process Integration ◽  
Internal Heat ◽  
Energy Systems ◽  
Heat Sinks ◽  
Heat Integration ◽  
Heat Sources ◽  
Thermodynamic Cycles ◽  
Integration Techniques ◽  
Internal Heat Integration ◽  
System Configurations

In a wide variety of thermal energy systems, the high integration among components derives from the need to correctly exploit all the internal heat sources by a proper matching with the internal heat sinks. According to what has been suggested in previous works to address this problem in a general way, a “basic configuration” can be extracted from the system flowsheet including all components but the heat exchangers, in order to exploit the internal heat integration between hot and cold thermal streams through process integration techniques. It was also shown how the comprehension of the advanced thermodynamic cycles can be strongly facilitated by decomposing the system into elementary thermodynamic cycles which can be analyzed separately. The advantages of the combination of these approaches are summarized in this paper using the steam injected gas turbine (STIG) cycle and its evolution towards more complex system configurations as an example of application. The new concept of “baseline thermal efficiency” is introduced to combine the efficiencies of the elementary cycles making up the overall system, which demonstrates to be a useful reference to quantify the performance improvement deriving from heat integration between elementary cycles within the system.

Reducing Energy Consumption in Propylene-Propane Separation with Heat Coupled Distillation

2011 ◽  
Vol 225-226 ◽  
pp. 500-503
Author(s):  
Lan Yi Sun ◽  
Jun Li ◽  
Xue Nuan Liu ◽  
Qing Song Li
Keyword(s):  
Energy Consumption ◽  
Distillation Column ◽  
Pressure Ratio ◽  
Internal Heat ◽  
Thermodynamic Efficiency ◽  
Total Annual Cost ◽  
Heat Integration ◽  
Internal Heat Integration ◽  
Vapor Recompression ◽  
Reducing Energy

The heat coupled distillation column which applies the principle of internal heat integration between the rectifying section and the stripping section of a distillation column by increasing the temperature of the rectifying section with a compressor attracts extensive attention worldwide for its high thermodynamic efficiency. In this study, the economic features of a heat coupled distillation column (HCDC) are investigated and compared to a conventional column and a commercial column with vapor recompression system (VRC) for the separation of propylene-propane mixture. The economic analysis indicates that HCDC has 10 – 20 % total annual cost (TAC) saving associated with VRC, which appeared to be strongly sensitive to the pressure ratio.

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