Thermodynamics of water-air transfer of fuel oxygenates by the dynamic method of batch air stripping: Experimental study of temperature and cosolvency effects

R. Gonzalez-Olmos; M. Iglesias

doi:10.1080/01496390903182271

Thermodynamics of water-air transfer of fuel oxygenates by the dynamic method of batch air stripping: Experimental study of temperature and cosolvency effects

R. Gonzalez-Olmos^*
, M. Iglesias

^*Corresponding author for this work

Research output: Indexed journal article › Article › peer-review

4 Citations (Scopus)

Abstract

The thermodynamics of the mass transfer process of fuel oxygenates (MTBE and ETBE) from aqueous phase to air by batch air stripping (BAS) has been studied in this work. This study analyzes the influence of the aeration flow and the temperature. The Mackay approach was used in order to calculate the Henry's law constant for each operational condition and they were compared with those obtained by static methods. The thermodynamics functions of the process, aqueous free excess enthalpy of solution (H^E_iw) and enthalpy of air-water transfer (Δ_waH_i) for both compounds were calculated and compared with literature values. Finally the effect of the cosolvency of tert butyl alcohol (TBA) was analyzed.

Original language	English
Pages (from-to)	3615-3631
Number of pages	17
Journal	Separation Science and Technology
Volume	44
Issue number	15
DOIs	https://doi.org/10.1080/01496390903182271
Publication status	Published - Nov 2009
Externally published	Yes

Keywords

Aeration
ETBE
Henry's law constant
MTBE
Thermodynamics and cosolvency

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10.1080/01496390903182271

Cite this

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abstract = "The thermodynamics of the mass transfer process of fuel oxygenates (MTBE and ETBE) from aqueous phase to air by batch air stripping (BAS) has been studied in this work. This study analyzes the influence of the aeration flow and the temperature. The Mackay approach was used in order to calculate the Henry's law constant for each operational condition and they were compared with those obtained by static methods. The thermodynamics functions of the process, aqueous free excess enthalpy of solution (HEiw) and enthalpy of air-water transfer (ΔwaHi) for both compounds were calculated and compared with literature values. Finally the effect of the cosolvency of tert butyl alcohol (TBA) was analyzed.",

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AU - Gonzalez-Olmos, R.

AU - Iglesias, M.

PY - 2009/11

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N2 - The thermodynamics of the mass transfer process of fuel oxygenates (MTBE and ETBE) from aqueous phase to air by batch air stripping (BAS) has been studied in this work. This study analyzes the influence of the aeration flow and the temperature. The Mackay approach was used in order to calculate the Henry's law constant for each operational condition and they were compared with those obtained by static methods. The thermodynamics functions of the process, aqueous free excess enthalpy of solution (HEiw) and enthalpy of air-water transfer (ΔwaHi) for both compounds were calculated and compared with literature values. Finally the effect of the cosolvency of tert butyl alcohol (TBA) was analyzed.

AB - The thermodynamics of the mass transfer process of fuel oxygenates (MTBE and ETBE) from aqueous phase to air by batch air stripping (BAS) has been studied in this work. This study analyzes the influence of the aeration flow and the temperature. The Mackay approach was used in order to calculate the Henry's law constant for each operational condition and they were compared with those obtained by static methods. The thermodynamics functions of the process, aqueous free excess enthalpy of solution (HEiw) and enthalpy of air-water transfer (ΔwaHi) for both compounds were calculated and compared with literature values. Finally the effect of the cosolvency of tert butyl alcohol (TBA) was analyzed.

KW - Aeration

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KW - Henry's law constant

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KW - Thermodynamics and cosolvency

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Thermodynamics of water-air transfer of fuel oxygenates by the dynamic method of batch air stripping: Experimental study of temperature and cosolvency effects

Abstract

Keywords

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