At present, the steel industry generally meets the increasingly strict requirements of environmental protection laws and regulations by improving energy-saving and environmental protection technology and management level. But with the need of iron ore into metallic iron with carbon as the reducing agent, react and requires a lot of energy to meet the required temperature requirements, therefore, how to reduce carbon dioxide emissions is still a problem in most of the iron and steel enterprises.
Henk Reimink points out that at present, the steel industry faces the following four major challenges in energy conservation and emission reduction:
First, how to minimize the use of raw materials (iron ore, coking coal) and maximize the resource efficiency while ensuring that the quality level of raw materials (iron ore, coking coal) used in the ironmaking process remains unchanged.
Second, how to reduce the intensity of the energy required to make steel, so as to reduce carbon dioxide emissions. Henk Reimink explains that a number of steel companies have proven that while there are many factors affecting energy intensity, they are all controllable.
Third, how to achieve industry 4.0 and apply intelligent manufacturing to energy-intensive processes as soon as possible. Henk Reimink points out that research shows that intelligent control systems can reduce energy use by reducing variables and make processes run more stably and efficiently.
Fourth, how to accelerate the development of breakthrough technologies. Henk Reimink said that after years of development, at present, the global steel industry has been developing energy conservation and environmental protection breakthrough technology, looking for environmental protection solutions has obtained certain achievement, mainly including Europe (ULCOS) and ultra-low carbon steelmaking process based on ULCOS development of smelting reduction process (HIsarna), as well as the innovation of the Japanese ironmaking technology development project (COURSE50), etc. In addition, the steel mills in all further cooperation in the field of environmental protection has been further enhanced, such as South Korea’s posco, China Taiwan “sinosteel” bao wu iron and steel group cooperation and China investment of energy conservation and environmental protection projects. But Henk Reimink believes the steel industry still needs to accelerate development of breakthrough technologies.
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Post time: Jul-04-2018