CFD simulation of multifluid mixing and structure optimization of rotating liquid film reactor for magnesium hydroxide production

作者：Wenwen Lin, Jiahao Wan, Yingying Zhang, Wenyan Liu, Wenyan Liu, Kaitao Li, Xiongzhong Yan, Jicang Li, Shengting Li, Wendi Liu, Wendi Liu, Yanjun Lin · 发表于：Chemical Engineering Journal · 年份：2025 · DOI：10.1016/j.cej.2025.168398 · 被引用次数：4 · 研究领域：Layered Double Hydroxides Synthesis and Applications、Magnesium Oxide Properties and Applications、Holomorphic and Operator Theory

Homogeneous particle size distribution and morphology are crucial in the application of nanomaterials. Herein, the rotary liquid film reactor (RLFR) was manufactured and updated for the preparation of nano-sized Mg(OH) 2 . CFD simulation helped predict the fluid mixing and product formation under different condition during the synthesis of Mg(OH) 2 in the RLFR, and it was proposed that the mixing effect be evaluadted by the mass fraction of generated Mg(OH) 2 . It is found that by increasing the number of inlets, the uniformity of fluid distribution and mixing effect can be largely promoted with product mass fraction of 95.07 %. According to this, a 4-inlet RLFR was fabricated for the fast preparation of nano-sized Mg(OH) 2 . Compare to conventional RLFR, Mg(OH) 2 synthesized by the 4-inlet reactor presented regular crystalline structure, uniform morphology, and high dispersion, and the particle size is 56 nm.