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http://dx.doi.org/10.7464/ksct.2016.22.4.225

The Reduced Steam Consumptions in the Evaporation Process Using a Vapor Recompression  

Noh, Sang Gyun (Department of Chemical & Biomolecular Engineering)
Publication Information
Clean Technology / v.22, no.4, 2016 , pp. 225-231 More about this Journal
Abstract
In this study, modeling and optimization study have been performed to obtain $1,524.58kg\;h^{-1}$ of a solidified NaCl by evaporating a 21.0 wt% of NaCl aqueous solution in order to reduce the steam consumption from $3,139kg\;h^{-1}$ to $496kg\;h^{-1}$ using a two-stage evaporation and a vapor recompression processes. Aspen Plus release 8.8 at AspenTech was utilized for the modeling of two stage evaporation process and PRO/II with PROVISION release 9.4 at Schneider Electric was also used for the simulation of two-stage vapor recompression process with an inter-cooler. For the simulation of the evaporation process containing NaCl aqueous solution, Aspen Plus release 8.8 at AspenTech Inc. was utilized and for the modeling of vapor recompression process PRO/II with PROVISION release at Schneider Electric Inc. For the vapor recompression process, single stage compression and two-stage compression system was compared.
Keywords
Evaporation; Single-effect; Multi-effect; Vapor recompression; Optimization;
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