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

被引：1
|
作者：
Nugraha, Harisma [1 ,3 ]
Haryono, Didied [2 ,3 ]
Harjanto, Sri [1 ]
Huda, Mahfudz Al [3 ]
Taruno, Warsito P. [3 ]
机构：
[1] Univ Indonesia, Dept Met & Mat Engn, Depok 16424, Indonesia
[2] Univ Sultan Ageng Tirtayasa, Dept Met Engn, Serang 42435, Indonesia
[3] CTECH Labs Edwar Technol, Ctr Nondestruct Testing & Proc Imaging, Tangerang 15235, Indonesia
来源：
PHYSICA SCRIPTA | 2023年 / 98卷 / 11期
关键词：
ECVT; non-invasive; non-intrusive measurement; column flotation; flow pattern; two-phase system; RESISTANCE TOMOGRAPHY; BUBBLE-SIZE; DISPERSION; FLOW;
D O I：
10.1088/1402-4896/ad008a
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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 x125 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 similar to 0.07, and the transition from the bubbly to churn-turbulent flow occurred at a superficial gas velocity of 2 c m /s .
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页数：9
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