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通过液态锡阴极的盐电解和多重效应蒸生产

Armaghan Ehsani Telgerafchi¹, Madison Rutherford^1,2, Gabriel Espinosa¹

¹Energy Metals Research Group, Department of Mechanical and Materials Engineering, Worcester Polytechnic Institute, Worcester, MA, United States.

Frontiers in chemistry

|July 19, 2023

概括

这项研究提出了一种新的,低成本的方法,用于使用溶盐电解和先进蒸来生产清洁的金属. 该工艺的成本和排放量与生产相似,增强了的作用.

科学领域:

材料科学与工程材料科学与工程
化学工程是化学工程的重要组成部分.
金工业是金工业的一个方面.

背景情况:

金属对于轻量级元件和能源技术至关重要.
目前的生产方法面临成本和环境挑战.
开发低成本,清洁的生产途径对于更广泛的采用至关重要.

研究的目的:

引入和分析一种用于低成本,清洁的金属初级生产的新工艺.
评估拟议方法的技术经济可行性和环境影响.
将拟议的工艺与传统的生产和生产进行比较.

主要方法:

用MgF2-CaF2电解质和液态锡阴极对MgO进行化盐电解.
使用重力驱动的多效热系统 (G-METS) 蒸用于分离和锡回收.
进行技术经济分析,包括质量和能量平衡,以及从摇篮到门的温室气体 (GHG) 排放评估.

主要成果:

电解实现了高电流产量 (>90%使用碳阳极,84%使用固体氧化物膜 (SOM) 阳极).
与传统方法相比,G-METS蒸显示出大幅降低成本和能源的潜力.
该过程可以利用CaO杂质,类似于化净化如何工作,潜在地降低成本.
使用SOM惰性阳极将成本增加10-15%,但将温室气体排放量减少1kgCO2/kgMg.
总体成本和温室气体排放量与生产相当.

结论:

描述的电解和G-METS蒸过程为低成本,清洁的金属生产提供了可行的途径.
该过程证明了相对于生产而言具有竞争力的经济和环境性能.
进一步优化,特别是在阳极选择方面,可以提高成本效益和环境效益.

关键词:

蒸蒸是一种蒸.惰性阳极是一种惰性阳极.的含量是多少? 的含量是多少?溶盐电解是溶盐的电解.多重效应热系统多重效应热系统反应性阴极的反应性阴极.

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