Integrated reaction and separation in a continuous middle vessel column for enhancing indirect hydration of cyclohexene to cyclohexanol

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This study introduced economically-viable continuous reactive distillation (RD) design alternatives for cyclohexanol production through the indirect hydration of cyclohexene. The feasibility concept of batch RD was employed for generating the new design alternatives. The first alternative process utilized a continuous stripper for recovering the stable node product of cyclohexyl formate in the esterification reaction and then employed a continuous middle vessel column (MVC) for recovering the stable and unstable node products of cyclohexanol and formic acid in the hydrolysis reaction. The second design had a single MVC-type column having the reactive rectifying zone and the middle vessel reactor for the two respective reactions. The simulation results showed the two alternative sequences required less energy duty than the previously proposed RD process. However, compared to the prior RD process, the life cycle cost (LCC) of the first alternative design increased about 30% due to high equipment costs and the LCC of the second process decreased nearly 40% because of low equipment costs and energy requirements.
Publisher
ELSEVIER SCIENCE SA
Issue Date
2018-01
Language
English
Article Type
Article
Keywords

DISTILLATION PROCESS; FEASIBLE PRODUCTS; LIQUID-MIXTURES; SYSTEMS; DESIGN; FEASIBILITY; KINETICS

Citation

CHEMICAL ENGINEERING AND PROCESSING, v.123, pp.249 - 257

ISSN
0255-2701
DOI
10.1016/j.cep.2017.08.019
URI
http://hdl.handle.net/10203/237670
Appears in Collection
ME-Journal Papers(저널논문)CBE-Journal Papers(저널논문)
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