J. Janowski, A. Barański, M. Łagan, J. Nedoma, A. Sadowski
{"title":"裂纹核模型在磁铁矿还原为浮士体中的应用","authors":"J. Janowski, A. Barański, M. Łagan, J. Nedoma, A. Sadowski","doi":"10.1016/0168-7336(90)80012-9","DOIUrl":null,"url":null,"abstract":"<div><p>The reduction of magnetite to wustite Fe<sub>0.936</sub>O was studied by means of thermogravimetry at 1293 K. Sphere-like samples of constant radius, within the radius range 0.3–5.0 mm, were reduced by flowing a CO<sub>2</sub> + CO gas mixture at nearly atmospheric pressure. Sigmoidal-type kinetic curves were obtained.</p><p>The crackling core model proposed in 1975 by Park and Levenspiel fits the data. The model takes into account crackling of solid grains and a chemical reaction. The limits of applicability of the model are discussed in more detail and the original procedure for calculating its parameters was modified to some extent.</p></div>","PeriodicalId":101061,"journal":{"name":"Reactivity of Solids","volume":"8 1","pages":"Pages 103-114"},"PeriodicalIF":0.0000,"publicationDate":"1990-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0168-7336(90)80012-9","citationCount":"3","resultStr":"{\"title\":\"On the application of the crackling core model to the reduction of magnetite to wustite\",\"authors\":\"J. Janowski, A. Barański, M. Łagan, J. Nedoma, A. Sadowski\",\"doi\":\"10.1016/0168-7336(90)80012-9\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The reduction of magnetite to wustite Fe<sub>0.936</sub>O was studied by means of thermogravimetry at 1293 K. Sphere-like samples of constant radius, within the radius range 0.3–5.0 mm, were reduced by flowing a CO<sub>2</sub> + CO gas mixture at nearly atmospheric pressure. Sigmoidal-type kinetic curves were obtained.</p><p>The crackling core model proposed in 1975 by Park and Levenspiel fits the data. The model takes into account crackling of solid grains and a chemical reaction. The limits of applicability of the model are discussed in more detail and the original procedure for calculating its parameters was modified to some extent.</p></div>\",\"PeriodicalId\":101061,\"journal\":{\"name\":\"Reactivity of Solids\",\"volume\":\"8 1\",\"pages\":\"Pages 103-114\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1990-06-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0168-7336(90)80012-9\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Reactivity of Solids\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0168733690800129\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Reactivity of Solids","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0168733690800129","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
On the application of the crackling core model to the reduction of magnetite to wustite
The reduction of magnetite to wustite Fe0.936O was studied by means of thermogravimetry at 1293 K. Sphere-like samples of constant radius, within the radius range 0.3–5.0 mm, were reduced by flowing a CO2 + CO gas mixture at nearly atmospheric pressure. Sigmoidal-type kinetic curves were obtained.
The crackling core model proposed in 1975 by Park and Levenspiel fits the data. The model takes into account crackling of solid grains and a chemical reaction. The limits of applicability of the model are discussed in more detail and the original procedure for calculating its parameters was modified to some extent.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
