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Language: English

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received November 30, 2020
Accepted April 4, 2021

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Solid-state reaction between MoS2 and MoO3 in a fluidized bed reactor

Jae-Rang Lee Yong-Ha Kim^1† Yong Sun Won^1†

Climate Change Research Division, Korea Institute of Energy Research, 152 Gajeong-ro, Yuseong-gu, Daejeon 34129, Korea ¹Department of Chemical Engineering, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 48513, Korea

Korean Journal of Chemical Engineering, September 2021, 38(9), 1791-1796(6), 10.1007/s11814-021-0797-1

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Abstract

MoO2 was produced by mixing MoS2 and MoO3 via a solid-state reaction in a fluidized bed reactor. The basic fluidization data were acquired by monitoring the minimum fluidization velocity of MoS2 and MoO3. The conversion rate of MoS2 and MoO3 to MoO2 was derived based on the solid-state reactions carried out for 1 h at various stoichiometric ratios. This study confirmed that the optimal stoichiometric ratio of MoS2 and MoO3 was 1.0 : 6. The conversion rate at the optimum stoichiometric ratio was studied by varying the reaction temperature. A conversion rate of 99% was achieved when the reaction temperature and superficial gas velocity were 973 K and 0.3m/s, respectively. Detailed analysis of the final product after the solid-state reaction was by scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive spectrometry (EDS) and X-ray diffraction (XRD), to determine the shape, structure, and diffraction patterns.

Keywords

Fluidized Bed Reactor Fluidization Solid-state Reaction Minimum Fluidization Velocity Conversion Rate

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