Oldshoe-Rushton column in supercritical fluid extraction

Antero Laitinen (Corresponding Author), Juha Kaunisto

Research output: Contribution to journalArticleScientificpeer-review

4 Citations (Scopus)

Abstract

The performance of a mechanically agitated Oldshue–Rushton column using carbon dioxide solvent at 10 MPa and 313 K to extract ethanol from aqueous feed was investigated. The overall mass-transfer coefficient K od a, the height equivalent to a theoretical stage (HETS), dispersed phase holdup, as well as the column capacity data were measured as a function of solvent-to-feed ratio and rotor speed. The values of overall mass transfer coefficient K od a generally ranged from 0.009 to 0.012 s−1, and the values of the HETS ranged from 0.44 to 0.74 m. The total throughput of the Oldshue–Rushton column without agitation was approximately 68 m3·h−1·m−2, whereas at 300 rpm the total throughput was approximately 48 m3·h−1·m−2.
Original languageEnglish
Pages (from-to)1859-1872
Number of pages14
JournalSeparation Science and Technology
Volume34
Issue number9
DOIs
Publication statusPublished - 1999
MoE publication typeA1 Journal article-refereed

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Supercritical fluids
Mass transfer
Throughput
Carbon Dioxide
Carbon dioxide
Ethanol
Rotors

Cite this

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title = "Oldshoe-Rushton column in supercritical fluid extraction",
abstract = "The performance of a mechanically agitated Oldshue–Rushton column using carbon dioxide solvent at 10 MPa and 313 K to extract ethanol from aqueous feed was investigated. The overall mass-transfer coefficient K od a, the height equivalent to a theoretical stage (HETS), dispersed phase holdup, as well as the column capacity data were measured as a function of solvent-to-feed ratio and rotor speed. The values of overall mass transfer coefficient K od a generally ranged from 0.009 to 0.012 s−1, and the values of the HETS ranged from 0.44 to 0.74 m. The total throughput of the Oldshue–Rushton column without agitation was approximately 68 m3·h−1·m−2, whereas at 300 rpm the total throughput was approximately 48 m3·h−1·m−2.",
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Oldshoe-Rushton column in supercritical fluid extraction. / Laitinen, Antero (Corresponding Author); Kaunisto, Juha.

In: Separation Science and Technology, Vol. 34, No. 9, 1999, p. 1859-1872.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Oldshoe-Rushton column in supercritical fluid extraction

AU - Laitinen, Antero

AU - Kaunisto, Juha

PY - 1999

Y1 - 1999

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AB - The performance of a mechanically agitated Oldshue–Rushton column using carbon dioxide solvent at 10 MPa and 313 K to extract ethanol from aqueous feed was investigated. The overall mass-transfer coefficient K od a, the height equivalent to a theoretical stage (HETS), dispersed phase holdup, as well as the column capacity data were measured as a function of solvent-to-feed ratio and rotor speed. The values of overall mass transfer coefficient K od a generally ranged from 0.009 to 0.012 s−1, and the values of the HETS ranged from 0.44 to 0.74 m. The total throughput of the Oldshue–Rushton column without agitation was approximately 68 m3·h−1·m−2, whereas at 300 rpm the total throughput was approximately 48 m3·h−1·m−2.

U2 - 10.1081/SS-100100743

DO - 10.1081/SS-100100743

M3 - Article

VL - 34

SP - 1859

EP - 1872

JO - Separation Science and Technology

JF - Separation Science and Technology

SN - 0149-6395

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