An experimental and PC-SAFT modeling study of the equilibrium behavior of trimethoxyvinylsilane + CO2 and triethoxyvinylsilane + CO2 mixtures

A synthetic methodology was applied to investigate the phase behavior of solution mixtures containing trimethoxyvinylsilane and triethoxyvinylsilane in supercritical carbon dioxide under high-pressure conditions, spanning temperatures up to 393.2 K and pressures up to 20.53 MPa. Critical mixture cur...

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Bibliographic Details
Published inNew journal of chemistry Vol. 48; no. 32; pp. 14362 - 14368
Main Authors Pradnya NP Ghoderao, Lee, Hyun-Seok, Hun-Soo Byun
Format Journal Article
LanguageEnglish
Published Cambridge Royal Society of Chemistry 12.08.2024
Subjects
Carbon dioxide
Equations of state
Mixtures
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Summary:A synthetic methodology was applied to investigate the phase behavior of solution mixtures containing trimethoxyvinylsilane and triethoxyvinylsilane in supercritical carbon dioxide under high-pressure conditions, spanning temperatures up to 393.2 K and pressures up to 20.53 MPa. Critical mixture curves were distinctly observed in both binary systems, exhibiting a maximum within the pressure–temperature domain situated between the critical temperatures of CO2 and the respective constituent. Notably, both systems displayed type-I phase behavior. Solubility curves were generated using the perturbed chain-statistical associating fluid theory (PC-SAFT) equation of state in theoretical analysis. Comparative analysis between the projected and experimental outcomes for the CO2 + trimethoxyvinylsilane and CO2 + triethoxyvinylsilane systems revealed substantial agreement, affirming the efficacy of the PC-SAFT equation of state.
ISSN:1144-0546
1369-9261
DOI:10.1039/d4nj02714k