Editorial for special issue on hydrogen metallurgy

Abstract

The carbon neutral strategy is promoting the transformation and upgrading of the traditional metallurgical industry, and the high-quality and low-carbon reform of the metallurgical industry is imperative. Hydrogen, as a clean energy in the 21st century, has a potential to realize low-carbon metallurgy from the source, and "hydrogen metallurgy" has become one of the most important directions for metallurgical industry. In recent years, the traditional metallurgical processes, represented by the steel industry, have developed rapidly in terms of hydrogen-rich smelting and new hydrogen metallurgy processes, indicating that the metallurgical industry is making rapid progress on the road of low-carbon transformation.In order to speed up the development of low-carbon metallurgical industry, a special issue of "Hydrogen Metallurgy" is published by the journal of International Journal of Minerals, Metallurgy and Materials (IJMMM). Experts and scholars from the world's top universities or research institutes including the Max Planck Institute in Germany and Kyushu University in Japan were invited to share their progress and prospects in "hydrogen metallurgy" research. The special issue includes a total of 12 papers, including a review of plasma hydrogen metallurgy and 11 research papers.The papers mainly focus on three directions: hydrogen-enriched behavior in traditional ironmaking process, hydrogenbased direct ironmaking process, and hydrogen plasma metallurgy. The special issue covers a comprehensive range of topics, from the innovation of traditional metallurgical processes to the development of new hydrogen-rich metallurgy processes, involving the current hot research directions in hydrogen metallurgy.

Interactions of graphene with oxidants in a mixed atmosphere: synergistic effects of O2/H2O and O2/CO2 on gasification reactivity and kinetics

“…Controlling the kinetics of carbon gasification with O 2 , CO 2 , and H 2 O oxidants is a key technical challenge in applications such as the oxyfuel combustion (OFC) system, 1,2 integrated gasification combined cycle (IGCC), 3 underground coal gasification (UCG), 4,5 net-zero emissions steel production system, 6,7 etc. In the context of future low-carbon scenarios, these processes play a pivotal role in the transformation of coal utilization resources.…”

The road to carbon neutrality in the metallurgical industry: Hydrogen metallurgy processes represented by hydrogen-rich coke oven gas, short-process metallurgy of scrap and low-carbon policy

“…As the world's largest carbon emitter, China accounts for 27% of the world's carbon emissions [3]. And as the most carbon-emitting industry in China, the Chinese steel industry accounts for 6.7% of global carbon dioxide emissions, while in China, this percentage reaches 15% [4]. Such exaggerated figures show that among heavy industries, the steel industry ranks first in terms of Co2 emissions.…”

The Adsorption Mechanism of Hydrogen on FeO Crystal Surfaces: A Density Functional Theory Study

“…As early as the 20th century, the possibility of using H 2 as a reducing agent in blast furnaces to reduce the use of carbon fuel in the ironmaking process was proposed [ 8 , 9 , 10 ]. Since then, the iron and steel industry [ 11 , 12 , 13 ] has developed rapidly with new processes of hydrogen-rich reduction [ 14 , 15 ] and hydrogen metallurgy [ 4 , 16 , 17 , 18 , 19 ]. These hydrogen-based metallurgical processes have been extensively studied both experimentally [ 20 , 21 , 22 , 23 , 24 ] and theoretically [ 5 , 6 , 25 , 26 ].…”