Magnetic Field-Enhanced Mass Transport in Energy Conversion Systems

A special issue of Magnetochemistry (ISSN 2312-7481). This special issue belongs to the section "Magnetic Field".

Deadline for manuscript submissions: closed (20 December 2022) | Viewed by 1801

Special Issue Editors

Multiscale Transfer & Energy Conversion Lab, Southwest Petroleum University, Chengdu 610500, China
Interests: Water electrolysis; multiphase flow; porous mdium; multiscale transfer; pore network model; MHD convection

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Guest Editor
Institute of Fluid Dynamics, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany
Interests: electrochemistry; magnetic field; magnetoelectrochemistry

Special Issue Information

Dear Colleagues,

In ancient times, magnetite meteorites from outer space brought infinite mystery to us. Magnetic energy also showed amazing and unexpected positive effects in modern science and technology research fields, such as the mass and heat transfer in energy conversion processes. The aim of this collection is to capture the latest advances in the field of magnetic energy enhancing mass and heat transfer. As an external energy field, the magnetic interference with processes and systems is often multiscale, from molecular motion to macroscopic flow, and improves mass transfer and changes the transfer mechanism. This Special Issue aims to publish a collection of forefront research articles that will expose the latest achievements in the experiment design, numerical method, and theory development that impact the future magnetic energy utilization in the energy conversion system and process.

Dr. Hongbo Liu
Dr. Xuegeng Yang
Guest Editors

Manuscript Submission Information

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Keywords

  • hydrogen energy
  • mass transport
  • MHD convection
  • water electrolysis
  • bubble dynamics
  • porous medium

Published Papers (1 paper)

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Research

17 pages, 3343 KiB  
Article
Biodiesel Production from Macroalgae Oil from Fucus vesiculosus Using Magnetic Catalyst in Unconventional Reactor Assisted by Magnetic Field
by Euripedes Garcia Silveira Junior, Lilian Fiori Boechat de Souza, Victor Haber Perez, Oselys Rodriguez Justo, Euclésio Simionatto and Lincoln Carlos Silva de Oliveira
Magnetochemistry 2022, 8(12), 177; https://doi.org/10.3390/magnetochemistry8120177 - 01 Dec 2022
Cited by 1 | Viewed by 1543
Abstract
A novel magnetic catalyst with hollow cylinder shape based on K2CO3/γ-Al2O3/Sepiolite/CoFe2O4 was prepared to convert macroalgae oil (Fucus vesiculosus) into biodiesel in an unconventional reactor assisted by magnetic field. Catalysts [...] Read more.
A novel magnetic catalyst with hollow cylinder shape based on K2CO3/γ-Al2O3/Sepiolite/CoFe2O4 was prepared to convert macroalgae oil (Fucus vesiculosus) into biodiesel in an unconventional reactor assisted by magnetic field. Catalysts were formulated by the extrusion and characterized satisfactorily by physicochemical (mechanical strength, XRD, TG/DTG, FTIR and TPD-CO2), magnetic (VSM and EPR), morphological (SEM) and textural properties (BET). While their catalytic performance was also evaluated at 70 °C, oil: ethanol molar ratio 1:12 and 6 wt.% of catalyst using two different reaction systems for comparative purposes: (a) conventional stirred reactor and (b) fluidized bed reactor assisted by a magnetic field. The attained biodiesel presents properties in accordance with the standard limits (ASTM and EN) and total conversion (>99%) was observed in both cases after 2 h of reaction without significant differences between the two reactors. However, the magnetic properties of these catalysts allowed stabilization of the bed under a magnetic field and easy magnetic catalyst separation/recovery at the reaction end, showing their great potential for biodiesel production with regard to conventional process and thus, transforming it into a more sustainable technology. Full article
(This article belongs to the Special Issue Magnetic Field-Enhanced Mass Transport in Energy Conversion Systems)
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