Investigation of the precipitation of Na2SO4 in supercritical water

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Investigation of the precipitation of Na2SO4 in supercritical water. / Voisin, T.; Erriguible, A.; Philippot, G.; Ballenghien, D.; Mateos, D.; Cansell, F.; Iversen, B. B.; Aymonier, C.

I: Chemical Engineering Science, Bind 174, 31.12.2017, s. 268-276.

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

Harvard

Voisin, T, Erriguible, A, Philippot, G, Ballenghien, D, Mateos, D, Cansell, F, Iversen, BB & Aymonier, C 2017, 'Investigation of the precipitation of Na2SO4 in supercritical water', Chemical Engineering Science, bind 174, s. 268-276. https://doi.org/10.1016/j.ces.2017.09.009

APA

Voisin, T., Erriguible, A., Philippot, G., Ballenghien, D., Mateos, D., Cansell, F., Iversen, B. B., & Aymonier, C. (2017). Investigation of the precipitation of Na2SO4 in supercritical water. Chemical Engineering Science, 174, 268-276. https://doi.org/10.1016/j.ces.2017.09.009

CBE

Voisin T, Erriguible A, Philippot G, Ballenghien D, Mateos D, Cansell F, Iversen BB, Aymonier C. 2017. Investigation of the precipitation of Na2SO4 in supercritical water. Chemical Engineering Science. 174:268-276. https://doi.org/10.1016/j.ces.2017.09.009

MLA

Vancouver

Voisin T, Erriguible A, Philippot G, Ballenghien D, Mateos D, Cansell F o.a. Investigation of the precipitation of Na2SO4 in supercritical water. Chemical Engineering Science. 2017 dec 31;174:268-276. https://doi.org/10.1016/j.ces.2017.09.009

Author

Voisin, T. ; Erriguible, A. ; Philippot, G. ; Ballenghien, D. ; Mateos, D. ; Cansell, F. ; Iversen, B. B. ; Aymonier, C. / Investigation of the precipitation of Na2SO4 in supercritical water. I: Chemical Engineering Science. 2017 ; Bind 174. s. 268-276.

Bibtex

@article{d30645e74870474f8551cdc235484d65,
title = "Investigation of the precipitation of Na2SO4 in supercritical water",
abstract = "SuperCritical Water Oxidation process (SCWO) is a promising technology for treating toxic and/or complex chemical wastes with very good efficiency. Above its critical point (374 °C, 22.1 MPa), water exhibits particular properties and organic compounds can be easily dissolved and degraded with the addition of oxidizing agents. But these interesting properties imply a main drawback regarding inorganic compounds. Highly soluble at ambient temperature in water, these inorganics (such as salts) are no longer soluble in supercritical water and precipitate into solids, creating plugs in SCWO processes. Although this precipitation phenomenon is well known as a limiting factor for SCWO process, it is still not well understood. This work intends to investigate the precipitation phenomenon with a new methodology. A common salt, disodium sulfate (Na2SO4), is taken as a reference for the study. Na2SO4 solubility in sub- and supercritical water is determined on a wide temperature range using a continuous set-up. Crystallite sizes formed after precipitation are measured with in situ synchrotron wide angle X-ray scattering (WAXS). Combining these experimental results, a numerical modeling of the precipitation in supercritical conditions is performed by taking into account all the implied physical phenomena: thermodynamic, hydrodynamic and nucleation & growth.",
keywords = "In situ analysis, Numerical modeling, Salt precipitation, Supercritical water, Supercritical water oxidation",
author = "T. Voisin and A. Erriguible and G. Philippot and D. Ballenghien and D. Mateos and F. Cansell and Iversen, {B. B.} and C. Aymonier",
year = "2017",
month = dec,
day = "31",
doi = "10.1016/j.ces.2017.09.009",
language = "English",
volume = "174",
pages = "268--276",
journal = "Chemical Engineering Science",
issn = "0009-2509",
publisher = "Pergamon Press",

}

RIS

TY - JOUR

T1 - Investigation of the precipitation of Na2SO4 in supercritical water

AU - Voisin, T.

AU - Erriguible, A.

AU - Philippot, G.

AU - Ballenghien, D.

AU - Mateos, D.

AU - Cansell, F.

AU - Iversen, B. B.

AU - Aymonier, C.

PY - 2017/12/31

Y1 - 2017/12/31

N2 - SuperCritical Water Oxidation process (SCWO) is a promising technology for treating toxic and/or complex chemical wastes with very good efficiency. Above its critical point (374 °C, 22.1 MPa), water exhibits particular properties and organic compounds can be easily dissolved and degraded with the addition of oxidizing agents. But these interesting properties imply a main drawback regarding inorganic compounds. Highly soluble at ambient temperature in water, these inorganics (such as salts) are no longer soluble in supercritical water and precipitate into solids, creating plugs in SCWO processes. Although this precipitation phenomenon is well known as a limiting factor for SCWO process, it is still not well understood. This work intends to investigate the precipitation phenomenon with a new methodology. A common salt, disodium sulfate (Na2SO4), is taken as a reference for the study. Na2SO4 solubility in sub- and supercritical water is determined on a wide temperature range using a continuous set-up. Crystallite sizes formed after precipitation are measured with in situ synchrotron wide angle X-ray scattering (WAXS). Combining these experimental results, a numerical modeling of the precipitation in supercritical conditions is performed by taking into account all the implied physical phenomena: thermodynamic, hydrodynamic and nucleation & growth.

AB - SuperCritical Water Oxidation process (SCWO) is a promising technology for treating toxic and/or complex chemical wastes with very good efficiency. Above its critical point (374 °C, 22.1 MPa), water exhibits particular properties and organic compounds can be easily dissolved and degraded with the addition of oxidizing agents. But these interesting properties imply a main drawback regarding inorganic compounds. Highly soluble at ambient temperature in water, these inorganics (such as salts) are no longer soluble in supercritical water and precipitate into solids, creating plugs in SCWO processes. Although this precipitation phenomenon is well known as a limiting factor for SCWO process, it is still not well understood. This work intends to investigate the precipitation phenomenon with a new methodology. A common salt, disodium sulfate (Na2SO4), is taken as a reference for the study. Na2SO4 solubility in sub- and supercritical water is determined on a wide temperature range using a continuous set-up. Crystallite sizes formed after precipitation are measured with in situ synchrotron wide angle X-ray scattering (WAXS). Combining these experimental results, a numerical modeling of the precipitation in supercritical conditions is performed by taking into account all the implied physical phenomena: thermodynamic, hydrodynamic and nucleation & growth.

KW - In situ analysis

KW - Numerical modeling

KW - Salt precipitation

KW - Supercritical water

KW - Supercritical water oxidation

UR - http://www.scopus.com/inward/record.url?scp=85029420805&partnerID=8YFLogxK

U2 - 10.1016/j.ces.2017.09.009

DO - 10.1016/j.ces.2017.09.009

M3 - Journal article

AN - SCOPUS:85029420805

VL - 174

SP - 268

EP - 276

JO - Chemical Engineering Science

JF - Chemical Engineering Science

SN - 0009-2509

ER -