Fully thermally coupled distillation column

Triantafyllou, C., and Smith, R., The Design and Optimization of Fully Thermally Coupled Distillation Columns, Trans. IChemE, Part A, 70 118, 1992. 

R. Agrawal and Z. Fidkowski. More operable arrangements of fully thermally coupled distillation columns. A.I.Ch.E. Journal, 44(ll) 2565-2568, 1998. 

K.A. Amminudin, R. Smith, D.Y.C. Thong, and G.P. Towler. Design and optimization of fully thermally coupled distillation columns. Part I Preliminary design and optimization methodology. Trans. IchemE, 79(Part A) 701-715, 2001. 

Triantafyllou C, Smith R. The design and optimization of fully thermally coupled distillation columns. Trans IChemE 1992 70 118. 

M. Serra, M. Perrier, A. Espuna, L. Puigjaner, 2000, Study of the Divided Wall Column Controlabillity Influenee of the Design and Operation, Comput. Chem. Eng., vol. 24, p. 901 C. Tryantafillou, R. Smith, 1992, The Design and Optimisation of Fully Thermally Coupled Distillation Columns, TransIChemE, part A, Chem. Eng. Res. Des., vol. 70(A5), p. 118... 

Triantafyllou, C. and R. Smith, The design and optimisation of fully thermally coupled distillation columns Process design. Transactions of the Institution of Chemical Engineers, 1992, 70 118 132. 

The design and optimization of a fully thermally coupled distillation column (FTCDC) are solved by a shortcut method, which uses a three-column model (Triantafyllou and Smith,... 

FTCDC Fully thermally coupled distillation column FUGK Fenske-Underwood-Gilliland-Kirkbride... 

Long, N.V.D. and Lee, M. (2011) Improved energy efficiency in debottlenecking using a fully thermally coupled distillation column. Asia-Pacific Journal of Chemical Engineering, 6, 338-348. 

Agrawal, R. (1999). More Operable Fully Thermally Coupled Distillation Column Configurations for Multicomponent Distillation. Trans IChemE., 77, Part A, 543-53. 

Agrawal, R., Fidkowski, Z. T. (1998). More Operable Arrangements of Fully Thermally Coupled Distillation Columns. AIChE J, 44,2565-81. 

Consider now ways in which the best arrangement of a distillation sequence can be determined more systematically. Given the possibilities for changing the sequence of simple columns or the introduction of prefractionators, side-strippers, side-rectifiers and fully thermally coupled arrangements, the problem is complex with many structural options. The problem can be addressed using the optimization of a superstructure. As discussed in Chapter 1, this approach starts by setting up a grand flowsheet in which all structural features for an optimal solution are embedded. 

Due to the tremendous costs associated to distillative separations, many alternate schemes to the simple column shown above have been proposed over the past several years both to improve on some of its inherent costs. Traditionally, when purifying a multicomponent mixture, an entire series of distillation columns are used in series, and the way in which these columns are sequenced may make a tremendous difference in the eventual process costs. However, due to the large energy requirements of even the most optimal sequence, more complex column arrangements have been proposed and subsequently utilized. These arrangements include thermally coupled columns such as side rectifiers and strippers, the fully thermally coupled columns (often referred to as the Petlyuk and Kaibel columns). 

Examples of such complex distillation structures are thus columns that have more than one feed point and/or more than two product streams, like distributed material addition/removal columns, and thermally coupled columns. Obviously, as the complexity of the distillation structure increases, so does the design itself thereof. This chapter will, as an introduction to complex column design, treat the design of elementary complex columns such as distributed feed and sidestream withdrawal columns, and side rectifiers, and strippers, before discussing more intricate complex columns like fully thermally coupled columns (sometimes referred to as the Petlyuk and Kaibel columns) in the subsequent chapter. Despite... 

In this paper the Generalized Modular Framework (Papalexandri and Pistikopoulos, 1996) is used for the representation of the Petlyuk (Fully Thermally Coupled) column. The GMF Petlyuk representation, which avoids the use of common simplifying assumptions while keeping the problem size small, is validated for a ternary separation, by a direct comparison of its results to those obtained by a rigorous distillation model. 

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