文章基本信息

标题：Convection-diffusion Model For Alumina Concentration in Hall-Héroult Process*
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作者：Lucas José da Silva Moreira ; Gildas Besançon ; Francesco Ferrante 等
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2022
卷号：55
期号：21
页码：150-155
DOI：10.1016/j.ifacol.2022.09.259
语种：English
出版社：Elsevier
摘要：AbstractHall-Héroult process is an electrolysis method to produce aluminum at industrial scale. It is based on an electrochemical reaction that requires an alumina dissolution in a bath solution. The hazardous operational conditions make it difficult the development of a sensor for continuous measurement. Moreover, local variations of alumina concentration throughout the pot cell arise during daily operations. This paper presents a modeling procedure to obtain a spatio-temporal dynamic representation of alumina concentration distribution. From the convection-diffusion relations, the alumina source term is analyzed and expanded to obtain the relations between the available signals and the output. The goal is to develop a system that is able to predict the obtained measurement by taking into account transport properties. The model is validated with industrial data and compared with other models.
关键词：KeywordsHall-Héroult processProcess Modeling