Measurement of gas holdup characteristics in two-phase column flotation by electrical capacitance volume tomography

Harisma Nugraha; Didied Haryono; Sri Harjanto; Mahfudz Al Huda; Warsito P. Taruno

doi:10.1088/1402-4896/ad008a

Measurement of gas holdup characteristics in two-phase column flotation by electrical capacitance volume tomography

Harisma Nugraha, Didied Haryono, Sri Harjanto, Mahfudz Al Huda, Warsito P. Taruno

Department of Metallurgical and Material Engineering

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Electrical capacitance volume tomography measured the gas holdup in two-phase column flotation. The purpose was to characterize gas holdup and understand its relation to flow patterns as a function of the types and doses of frothers. Experiments were conducted using laboratory-scale column flotation cells with dimensions of 5 ×125 cm. The superficial gas velocities in the experiment were 0.5-4 cm s⁻¹ with an interval of 0.5 cm/s. Methyl isobutyl carbinol (MIBC) and Oreprep F-583-OZ (Oreprep) were used as frothers at 5-40 ppm doses. The results showed that the difference between the lowest and highest gas holdup in the bubbly flow regime was ∼0.07, and the transition from the bubbly to churn-turbulent flow occurred at a superficial gas velocity of 2 c m /s .

Original language	English
Article number	115033
Journal	Physica Scripta
Volume	98
Issue number	11
DOIs	https://doi.org/10.1088/1402-4896/ad008a
Publication status	Published - 1 Nov 2023

Keywords

column flotation
ECVT
flow pattern
non-intrusive measurement
non-invasive
two-phase system

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10.1088/1402-4896/ad008a

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title = "Measurement of gas holdup characteristics in two-phase column flotation by electrical capacitance volume tomography",

abstract = "Electrical capacitance volume tomography measured the gas holdup in two-phase column flotation. The purpose was to characterize gas holdup and understand its relation to flow patterns as a function of the types and doses of frothers. Experiments were conducted using laboratory-scale column flotation cells with dimensions of 5 ×125 cm. The superficial gas velocities in the experiment were 0.5-4 cm s−1 with an interval of 0.5 cm/s. Methyl isobutyl carbinol (MIBC) and Oreprep F-583-OZ (Oreprep) were used as frothers at 5-40 ppm doses. The results showed that the difference between the lowest and highest gas holdup in the bubbly flow regime was ∼0.07, and the transition from the bubbly to churn-turbulent flow occurred at a superficial gas velocity of 2 c m /s .",

keywords = "column flotation, ECVT, flow pattern, non-intrusive measurement, non-invasive, two-phase system",

author = "Harisma Nugraha and Didied Haryono and Sri Harjanto and Huda, {Mahfudz Al} and Taruno, {Warsito P.}",

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AU - Nugraha, Harisma

AU - Haryono, Didied

AU - Harjanto, Sri

AU - Huda, Mahfudz Al

AU - Taruno, Warsito P.

PY - 2023/11/1

Y1 - 2023/11/1

N2 - Electrical capacitance volume tomography measured the gas holdup in two-phase column flotation. The purpose was to characterize gas holdup and understand its relation to flow patterns as a function of the types and doses of frothers. Experiments were conducted using laboratory-scale column flotation cells with dimensions of 5 ×125 cm. The superficial gas velocities in the experiment were 0.5-4 cm s−1 with an interval of 0.5 cm/s. Methyl isobutyl carbinol (MIBC) and Oreprep F-583-OZ (Oreprep) were used as frothers at 5-40 ppm doses. The results showed that the difference between the lowest and highest gas holdup in the bubbly flow regime was ∼0.07, and the transition from the bubbly to churn-turbulent flow occurred at a superficial gas velocity of 2 c m /s .

AB - Electrical capacitance volume tomography measured the gas holdup in two-phase column flotation. The purpose was to characterize gas holdup and understand its relation to flow patterns as a function of the types and doses of frothers. Experiments were conducted using laboratory-scale column flotation cells with dimensions of 5 ×125 cm. The superficial gas velocities in the experiment were 0.5-4 cm s−1 with an interval of 0.5 cm/s. Methyl isobutyl carbinol (MIBC) and Oreprep F-583-OZ (Oreprep) were used as frothers at 5-40 ppm doses. The results showed that the difference between the lowest and highest gas holdup in the bubbly flow regime was ∼0.07, and the transition from the bubbly to churn-turbulent flow occurred at a superficial gas velocity of 2 c m /s .

KW - column flotation

KW - ECVT

KW - flow pattern

KW - non-intrusive measurement

KW - non-invasive

KW - two-phase system

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Measurement of gas holdup characteristics in two-phase column flotation by electrical capacitance volume tomography

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Keywords

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