The Extractive Industry’s Decarbonization Potential Using Electrification and Hydrogen Technologies

The challenge of achieving net-zero CO<sub>2</sub> emissions will require a significant scaling up of the production of several raw materials that are critical for decarbonizing the global economy. In contrast, metal extraction processes utilize carbon as a reducing agent, which is oxidi...

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Bibliographic Details
Main Authors: Antonis Peppas, Chrysa Politi, Maria Taxiarchou
Format: Article
Language:English
Published: MDPI AG 2025-03-01
Series:Hydrogen
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Online Access:https://www.mdpi.com/2673-4141/6/2/19
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Summary:The challenge of achieving net-zero CO<sub>2</sub> emissions will require a significant scaling up of the production of several raw materials that are critical for decarbonizing the global economy. In contrast, metal extraction processes utilize carbon as a reducing agent, which is oxidized to CO<sub>2</sub>, resulting in considerable emissions and having a negative impact on climate change. In order to abate their emissions, extractive industries will have to go through a profound transformation, including switching to alternative climate-neutral energy and feedstock sources. This paper presents the authors’ perspectives for consideration in relation to the H<sub>2</sub> potential for direct reduction of oxide and sulfide ores. For each case scenario, the reduction of CO<sub>2</sub> emissions is analyzed, and a breakthrough route for H<sub>2</sub>S decomposition is presented, which is a by-product of the direct reduction of sulfide ores with H<sub>2</sub>. Electrified indirect-fired metallurgical kiln advantages are also presented, a solution that can substitute fossil fuel-based heating technologies, which is one of the main backbones of industrial processes currently applied to the extractive industries.
ISSN:2673-4141