Process synthesis and intensification of hybrid separations

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Abstract

Hybrid flowsheets are defined, in the context of process intensification, as alternatives suitable for replacing energy-intensive separation methods through the combination of more than one unit operation. Distillation is one of the first options considered for achieving a required separation; therefore, this chapter examines distillation- based hybrid alternatives. Due to the extent of the topic, this analysis is limited to the separation of bioalcohols utilizing pervaporation and liquid-liquid extraction as assisted distillation methods. For each case, different hybrid flowsheets are reported and commented on. The corresponding distillation-based processes are considered for comparison. Synthesis of the possible hybrid flowsheets appears to be important, especially when multicomponent mixtures are considered. This aspect is discussed for the combination of liquid-liquid extraction and distillation as applied to the separation of biobutanol from its fermentation broth. The synthesis of alternative hybrid flowsheets is reported, showing that one configuration can realize a 43% reduction in the total annual cost. Bioalcohol production by fermentation perfectly represents the casewhere distillation alone is penalized by the thermodynamics of the mixture, but its applicability can be extended using valid alternative hybrid flowsheets.
Original languageEnglish
Title of host publicationProcess Synthesis and Process Intensification : Methodological Approaches
EditorsBen-Guang Rong
PublisherDe Gruyter
Publication date2017
Pages182-212
Chapter5
ISBN (Electronic)9783110465068
DOIs
Publication statusPublished - 2017
SeriesDe Gruyter Textbook

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Flowcharting
Distillation
Liquids
Fermentation
Pervaporation
Thermodynamics
Costs

Cite this

Errico, M. (2017). Process synthesis and intensification of hybrid separations. In B-G. Rong (Ed.), Process Synthesis and Process Intensification: Methodological Approaches (pp. 182-212). De Gruyter. De Gruyter Textbook https://doi.org/10.1515/9783110465068-005
Errico, Massimiliano. / Process synthesis and intensification of hybrid separations. Process Synthesis and Process Intensification: Methodological Approaches. editor / Ben-Guang Rong. De Gruyter, 2017. pp. 182-212 (De Gruyter Textbook).
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Errico, M 2017, Process synthesis and intensification of hybrid separations. in B-G Rong (ed.), Process Synthesis and Process Intensification: Methodological Approaches. De Gruyter, De Gruyter Textbook, pp. 182-212. https://doi.org/10.1515/9783110465068-005

Process synthesis and intensification of hybrid separations. / Errico, Massimiliano.

Process Synthesis and Process Intensification: Methodological Approaches. ed. / Ben-Guang Rong. De Gruyter, 2017. p. 182-212 (De Gruyter Textbook).

Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

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AB - Hybrid flowsheets are defined, in the context of process intensification, as alternatives suitable for replacing energy-intensive separation methods through the combination of more than one unit operation. Distillation is one of the first options considered for achieving a required separation; therefore, this chapter examines distillation- based hybrid alternatives. Due to the extent of the topic, this analysis is limited to the separation of bioalcohols utilizing pervaporation and liquid-liquid extraction as assisted distillation methods. For each case, different hybrid flowsheets are reported and commented on. The corresponding distillation-based processes are considered for comparison. Synthesis of the possible hybrid flowsheets appears to be important, especially when multicomponent mixtures are considered. This aspect is discussed for the combination of liquid-liquid extraction and distillation as applied to the separation of biobutanol from its fermentation broth. The synthesis of alternative hybrid flowsheets is reported, showing that one configuration can realize a 43% reduction in the total annual cost. Bioalcohol production by fermentation perfectly represents the casewhere distillation alone is penalized by the thermodynamics of the mixture, but its applicability can be extended using valid alternative hybrid flowsheets.

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Errico M. Process synthesis and intensification of hybrid separations. In Rong B-G, editor, Process Synthesis and Process Intensification: Methodological Approaches. De Gruyter. 2017. p. 182-212. (De Gruyter Textbook). https://doi.org/10.1515/9783110465068-005