Are All Thermal Coupling Links between Multicomponent Distillation Columns Useful from an Energy Perspective?

Shah, Vishesh H.

doi:10.1021/ie101768c

Cited by 26 publications

(17 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Some of them, without the intention of a comprehensive review are: modification in the number and characteristics of vapor and liquid transfer between columns [60,61]; Simultaneous design of thermally coupled and heat integrated systems [12,[62][63][64], thermodynamic analysis [2,5,6,[65][66][67], generation and analysis of sequences with reduced number of column sections [68][69][70][71], alternatives for columns with one or multiple walls [72,73].…”

Section: Introductionmentioning

confidence: 99%

Optimal synthesis of thermally coupled distillation sequences using a novel MILP approach

Caballero

Grossmann

2014

Computers & Chemical Engineering

View full text Add to dashboard Cite

This paper introduces a novel MILP approach for the design of distillation columns sequences of zeotropic mixtures explicitly including from conventional to fully thermally coupled sequences and divided wall columns with a single wall.The model is based on the use of two superstructure levels. In the upper level a superstructure that includes all the basic sequences of separation tasks and all the possibilities of heat exchange (condensers and reboilers). In the lower level an extended tree that explicitly includes all the alternatives for a given separation task (different thermal states and compositions of the feed to a given separation task). In that way, it is possible to a priori optimize all the possible separation tasks involved in the superstructure. A set of logical relationships relates the feasible sequences (upper level) with the optimized tasks in the extended tree resulting in a MILP to select the optimal sequence. Performance of the model in terms of robustness and computational time is illustrated with several examples.

show abstract

Section: Introductionmentioning

confidence: 99%

Optimal synthesis of thermally coupled distillation sequences using a novel MILP approach

Caballero

Grossmann

2014

Computers & Chemical Engineering

View full text Add to dashboard Cite

show abstract

“…[8], which includes a good discussion of when to draw products with sidestreams, when to apply side strippers/rectifiers, and when to use a divided wall column arrangement. Recently, even more heat-integrated configurations have been published for the separation of three or more products that benefit from significant energy and capital savings [9,10].…”

Section: Separation Systems In Chemical Plantsmentioning

confidence: 99%

Distillation of Bulk Chemicals

Kooijman¹,

Taylor²

2014

Distillation

View full text Add to dashboard Cite

“…And it has greater irreversibility due to greater temperature difference between the eliminated BC reboiler and DE condenser. Introducing thermal coupling at BC and DE in the configuration of Figure c results in the configuration of Figure a which requires either the same or less heat duty compared to the original configuration of Figure c . The configuration in Figure a can be shown to be thermodynamically equivalent to the configuration in Figure b .…”

Section: Introductionmentioning

confidence: 99%

Minimum energy of multicomponent distillation systems using minimum additional heat and mass integration sections

2018

Self Cite

View full text Add to dashboard Cite

Heat and mass integration to consolidate distillation columns in a multicomponent distillation configuration can lead to a number of new energy efficient and cost-effective configurations. In this work, a powerful and simple-to-use fact about heat and mass integration is identified. The newly developed heat and mass integrated configurations, which we call as HMP configurations, involve first introducing thermal couplings to all intermediate transfer streams, followed by consolidating columns associated with a lighter pure product reboiler and a heavier pure product condenser. A systematic method of enumerating all HMP configurations is introduced. The energy savings of HMP configurations is compared with the well-known fully thermally coupled (FTC) configurations. HMP configurations can have very similar and sometimes even the same minimum total vapor duty requirement as the FTC configuration is demonstrated, while using far less number of column sections, intermediate transfer streams, and thermal couplings than the FTC configurations. Figure 3. (a) A configuration derived from the configuration in Figure 2c by introducing thermal couplings at all submixtures; (b) A HMP configuration that is thermodynamically equivalent to the configuration in Figure 3a.Note that the thermal coupling at submixture DEF of Figure 7a is converted into a liquid-only transfer stream19 in Figure 7b, indicated by the curved arrow.Figure 9. (a) One possible operable dividing wall column drawn from the FTC configuration of Figure 8a using the methodology of Madenoor Ramapriya et al. 24,25 Notice that this dividing wall column uses three dividing walls and nine intermediate transfer streams; (b) one possible operable dividing wall column version synthesized from the HMP configuration of Figure 8b; (c) one possible operable dividing wall column version synthesized from the HMP configuration of Figure 8c. Notice that both dividing wall columns of Figures 8b, c use only 2 dividing walls and 5 intermediate transfer streams.

show abstract

Are All Thermal Coupling Links between Multicomponent Distillation Columns Useful from an Energy Perspective?

Cited by 26 publications

References 24 publications

Optimal synthesis of thermally coupled distillation sequences using a novel MILP approach

Optimal synthesis of thermally coupled distillation sequences using a novel MILP approach

Distillation of Bulk Chemicals

Minimum energy of multicomponent distillation systems using minimum additional heat and mass integration sections

Contact Info

Product

Resources

About