Fluidization in combined acoustic-magnetic field for mixtures of ultrafine particles--颗粒学报PARTICUOLOGY

Liu, H., & Guo, Q. (2007). Fluidization in combined acoustic-magnetic field for mixtures of ultrafine particles. China Particuology, 5(1), 111–115. https://doi.org/10.1016/j.cpart.2007.01.007

Fluidization in combined acoustic-magnetic field for mixtures of ultrafine particles

Huie Liu ^a, Qingjie Guo ^a *

a State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum, Dongying 257061, Shandong, China

10.1016/j.cpart.2007.01.007

Volume 5, Issues 1–2, February–April 2007, Pages 111-115

Received 20 September 2006, Accepted 24 January 2007, Available online 6 June 2007.

E-mail: qjguo@mail.hdpu.edu.cn

Highlights

Abstract

Four kinds of SiO₂ (5–10 nm) + Fe₃O₄ (44.8 μm) particle were fluidized in a sole acoustic field, a sole magnetic field and a combined acoustic-magnetic field. Introduction of a single field, 100 dB/40–60 Hz acoustic or 10 mT magnetic, could suppress plugging and channeling and reduce the superficial minimum fluidization gas velocities, U_mf. Combination of both acoustic and magnetic fields demonstrated even more promising results, especially more significant reduction of U_mf.

Graphical abstract

Keywords

Ultrafine particle; Combined acoustic-magnetic field; Acoustic field; Magnetic field

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