冶金工业电极和耐火材料中的生物碳替代品综述

IF 2.5 3区 材料科学 Q3 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY
Jesse Franklin White, Luis Miguel López Renau, Björn Glaser
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引用次数: 0

摘要

碳的化学和热物理性质使其在许多高温冶金工艺的非还原剂用途中基本上是不可替代的。目前,生物碳替代品大规模应用于电极和耐火材料在技术上还不可行,而电极和耐火材料是钢铁、铝和有色金属工业的重要消耗品。各种类型的碳电极,包括索德伯格电极、预焙电极、铝阳极/阴极电极、石墨电极以及碳衬膏,都是由粘结在碳基粘结剂基质中的颗粒状碳集合体组成。同样,MgO-C 等耐火材料也同时使用天然(开采的)石墨和碳基粘结剂。用生物碳替代品取代化石碳材料有可能显著减少这些产品的碳足迹。然而,在材料工程方面还必须克服相当大的挑战。本文探讨了这些应用的技术需求以及用生物碳替代的潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

A Review of Biocarbon Substitutes in Electrodes and Refractories for the Metallurgical Industries

A Review of Biocarbon Substitutes in Electrodes and Refractories for the Metallurgical Industries

The chemical and thermophysical properties of carbon make it essentially irreplaceable for non-reductant uses in many high-temperature metallurgical processes. At present, biocarbon substitutes are not technically feasible for large-scale application in electrode and refractory materials that are such vital consumables in the steel, aluminum, and non-ferrous metal industries. Carbon electrodes of all types, including Söderberg, prebaked, and anodes/cathodes for Al, graphite electrodes, as well as carbon lining pastes are all similar in that they are comprised of a granular carbon aggregate bonded in a carbon-based binder matrix. Similarly, refractories such as MgO–C utilize both natural (mined) graphite and carbon-based binders. Replacement of fossil carbon materials with biocarbon substitutes has the potential to dramatically reduce the carbon footprints of these products. However, there are considerable materials engineering challenges that must be surmounted. The technological demands for these applications and potential for substitution with biogenic carbon are explored.

Graphical Abstract

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来源期刊
Journal of Sustainable Metallurgy
Journal of Sustainable Metallurgy Materials Science-Metals and Alloys
CiteScore
4.00
自引率
12.50%
发文量
151
期刊介绍: Journal of Sustainable Metallurgy is dedicated to presenting metallurgical processes and related research aimed at improving the sustainability of metal-producing industries, with a particular emphasis on materials recovery, reuse, and recycling. Its editorial scope encompasses new techniques, as well as optimization of existing processes, including utilization, treatment, and management of metallurgically generated residues. Articles on non-technical barriers and drivers that can affect sustainability will also be considered.
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