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http://dx.doi.org/10.5762/KAIS.2010.11.2.590

A Study on the Thermodynamic Analysis for the DME Separation Process  

Cho, Jung-Ho (Department of Chemical Engineering, Kongju National University,)
Kim, Young-Woo (Department of Automotive Engineering, Hoseo University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.11, no.2, 2010 , pp. 590-596 More about this Journal
Abstract
Through this study, we have attempted the thermodynamic analysis on the dimethyl ether (DME) separation process, which can be used for diesel alternative fuel, additive to LPG and natural gas. And we also have completed the simulation of DME separation process using PRO/II with PROVISION. As an appropriate thermodynamic models, we selected NRTL liquid activity coefficient model to describe the non-ideality between methanol and water. To estimate the vapor phase non-idealities, we have chosen the Peng-Robinson equation of state model. And we also use the Henry's law option to predict the solubilities of non-condensible gases like CO, $CO_2$, $H_2$, $CH_2$ and $N_2$ in methanol solvent. Case study showed that optimal solvent to feed molar ratio was 3.40
Keywords
Dimethyl ether; Two-model approach; Thermodynamic model; Separation process;
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Times Cited By KSCI : 1  (Citation Analysis)
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