Optimal Design of Heat Pump Assisted Distillation Sequences

This study demonstrates enhanced distillation sequence efficiency achieved through the simultaneous optimization of column sequences and various heat integration methods, including thermal couples, direct integration (reboiler-condenser heat exchange), and assisted integration via vapor recompressio...

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Bibliographic Details
Published inComputer Aided Chemical Engineering Vol. 53; pp. 1255 - 1260
Main Authors Caballero, José A., Labarta, Juan A., Mekidiche-Martínez, Zinet
Format Book Chapter
LanguageEnglish
Published 2024
Subjects
Bottom Flashing
Distillation
Electrification
Heat Integration
Vapor Recompression
Distillation
Vapor Recompression
Electrification
Bottom Flashing
Heat Integration
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Summary:This study demonstrates enhanced distillation sequence efficiency achieved through the simultaneous optimization of column sequences and various heat integration methods, including thermal couples, direct integration (reboiler-condenser heat exchange), and assisted integration via vapor recompression and bottom flashing cycles. The model applied to the separation of a 4-hydrocarbon mixture, reveals a substantial reduction in total utility costs (hot, cold, and electricity) compared to the top-performing non-heat integrated alternative (fully thermally coupled distillation sequence), achieving a remarkable 78% reduction. In alignment with the "Roadmap to Achieve Net Zero Emissions by 2050," the proposal to electrify distillation sequences is introduced to replace non-renewable utilities with electricity. Despite cost increases, the optimal electrified solution remains competitive with the best non-heat integrated alternative. However, in sequences involving challenging separations, the most effective solution may necessitate electricity as the sole utility.
ISBN:9780443288241
0443288240
ISSN:1570-7946
DOI:10.1016/B978-0-443-28824-1.50210-6