Unfavorable energy integration of reactive dividing wall column for simultaneous esterification reactions

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Thermal integration in a reactive dividing wall column (RDWC) can dramatically reduce energy consumption. This study, however, addresses unfavorable energy integration of the concurrent esterification of butyl, amyl, and hexyl alcohols in the RDWC. The reaction kinetics and vapor-liquid-liquid equilibrium of reactive mixtures are utilized to assess the feasibility of energy integration in a multi-partitioned RDWC. The thermal integration effect of an RDWC is elucidated by comparing its energy efficiency with that of the direct sequential configuration of a reactive distillation column followed by a non-reactive distillation column. The unfavorable thermal integration in the RDWC originates from the large internal flow to satisfy the product purities. Therefore, a single RDWC sequence showed higher energy consumption and total annual cost than the direct RD sequence for the simultaneous triple esterification.
Publisher
KOREAN INSTITUTE CHEMICAL ENGINEERS
Issue Date
2021-01
Language
English
Article Type
Article
Citation

KOREAN JOURNAL OF CHEMICAL ENGINEERING, v.38, no.1, pp.195 - 203

ISSN
0256-1115
DOI
10.1007/s11814-020-0682-3
URI
http://hdl.handle.net/10203/280512
Appears in Collection
CBE-Journal Papers(저널논문)
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