Hongyu Lin, Yiyang Zhao, Lang Qiu*, Yuting Deng, Manqi Tang, Yongpeng Liu, Junbo Zhou, Benhe Zhong and Xiaodong Guo*,
{"title":"用CFD-PBE模型研究Ni-Mn-Co氢氧化物前驱体在CSTR内的共沉淀过程","authors":"Hongyu Lin, Yiyang Zhao, Lang Qiu*, Yuting Deng, Manqi Tang, Yongpeng Liu, Junbo Zhou, Benhe Zhong and Xiaodong Guo*, ","doi":"10.1021/acs.iecr.5c01476","DOIUrl":null,"url":null,"abstract":"<p >The coprecipitation process of Ni<sub>0.92</sub>Mn<sub>0.04</sub>Co<sub>0.04</sub>(OH)<sub>2</sub> in a continuous stirred tank reactor (CSTR) is modeled by using a CFD–PBE approach. The simulation results align with the evolutionary trend of particle size in the precursor under different stirring speeds. Based on the analysis of the simulation data, a three-stage coprecipitation process and its internal mechanism are proposed, where particle evolution and changes in supersaturation within the stirred tank are closely interconnected. Based on the proposed three-stage mechanism, we contend that the impact of stirring speed on the secondary particle size is achieved through its influence on the number of crystal seeds during the early stages of synthesis, which aligns with the particle size results from variable speed synthesis. The simulation revealed that supersaturation within the CSTR begins to rise several hours into the coprecipitation process, a finding consistent with the structural changes of the precursor particles.</p>","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":"64 25","pages":"12686–12695"},"PeriodicalIF":3.9000,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Insight into the Coprecipitation Process of Ni–Mn–Co Hydroxide Precursors within a CSTR Using a CFD–PBE Model\",\"authors\":\"Hongyu Lin, Yiyang Zhao, Lang Qiu*, Yuting Deng, Manqi Tang, Yongpeng Liu, Junbo Zhou, Benhe Zhong and Xiaodong Guo*, \",\"doi\":\"10.1021/acs.iecr.5c01476\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >The coprecipitation process of Ni<sub>0.92</sub>Mn<sub>0.04</sub>Co<sub>0.04</sub>(OH)<sub>2</sub> in a continuous stirred tank reactor (CSTR) is modeled by using a CFD–PBE approach. The simulation results align with the evolutionary trend of particle size in the precursor under different stirring speeds. Based on the analysis of the simulation data, a three-stage coprecipitation process and its internal mechanism are proposed, where particle evolution and changes in supersaturation within the stirred tank are closely interconnected. Based on the proposed three-stage mechanism, we contend that the impact of stirring speed on the secondary particle size is achieved through its influence on the number of crystal seeds during the early stages of synthesis, which aligns with the particle size results from variable speed synthesis. The simulation revealed that supersaturation within the CSTR begins to rise several hours into the coprecipitation process, a finding consistent with the structural changes of the precursor particles.</p>\",\"PeriodicalId\":39,\"journal\":{\"name\":\"Industrial & Engineering Chemistry Research\",\"volume\":\"64 25\",\"pages\":\"12686–12695\"},\"PeriodicalIF\":3.9000,\"publicationDate\":\"2025-06-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Industrial & Engineering Chemistry Research\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://pubs.acs.org/doi/10.1021/acs.iecr.5c01476\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENGINEERING, CHEMICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Industrial & Engineering Chemistry Research","FirstCategoryId":"5","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acs.iecr.5c01476","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
Insight into the Coprecipitation Process of Ni–Mn–Co Hydroxide Precursors within a CSTR Using a CFD–PBE Model
The coprecipitation process of Ni0.92Mn0.04Co0.04(OH)2 in a continuous stirred tank reactor (CSTR) is modeled by using a CFD–PBE approach. The simulation results align with the evolutionary trend of particle size in the precursor under different stirring speeds. Based on the analysis of the simulation data, a three-stage coprecipitation process and its internal mechanism are proposed, where particle evolution and changes in supersaturation within the stirred tank are closely interconnected. Based on the proposed three-stage mechanism, we contend that the impact of stirring speed on the secondary particle size is achieved through its influence on the number of crystal seeds during the early stages of synthesis, which aligns with the particle size results from variable speed synthesis. The simulation revealed that supersaturation within the CSTR begins to rise several hours into the coprecipitation process, a finding consistent with the structural changes of the precursor particles.
期刊介绍：
ndustrial & Engineering Chemistry, with variations in title and format, has been published since 1909 by the American Chemical Society. Industrial & Engineering Chemistry Research is a weekly publication that reports industrial and academic research in the broad fields of applied chemistry and chemical engineering with special focus on fundamentals, processes, and products.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
