ISIJ International
Online ISSN : 1347-5460
Print ISSN : 0915-1559
ISSN-L : 0915-1559
Perspectives on the Promising Pathways to Zero Carbon Emissions in the Steel Industry toward 2050
Tatsuro Ariyama
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JOURNAL OPEN ACCESS Advance online publication

Article ID: ISIJINT-2024-320

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Abstract

Addressing the threat of global climate change is an urgent priority for all industries. The Paris Agreement set the global long-term goal of carbon neutral by 2050 for all member countries. As the steel industry occupies approximately 7.2 % of the total global greenhouse-gas emissions, innovative technologies that build upon or move beyond the past developments are desired to reach this long-term goal. Various zero carbon technologies have been proposed for the steel industry. This review focuses on the current state of the steel industry from the perspective of long-term targets and pathways for the future. The design of an optimal ironmaking process for low carbon and decarbonization is discussed from a technological perspective, considering comprehensive consistency with sustainability in the steel industry. In particular, perspectives on the hydrogen-based ironmaking process using renewable energy for carbon direct avoidance and smart carbon usage are described.

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© 2024 The Iron and Steel Institute of Japan

This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs license
https://creativecommons.org/licenses/by-nc-nd/4.0/
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