阿塞洛-米塔尔 and SEKISUI 化学 have been partnering on a project to capture and reuse CO₂ 在炼钢过程中排放. 作为合作的一部分, the two companies have been supported by the New Energy and Industrial Technology Development Organization (NEDO), 日本’s national research and development agency, and have launched an “International collaboration on CCU for circular carbon in Steelmaking” (hereafter, NEDO项目), scheduled for three years from 2021.

   One of the research topics is to develop a fundamental technology for Synthesis Gas (carbon monoxide and hydrogen) production using SEKISUI 化学’s unique chemical looping technology.

  Through tests using actual blast furnace gas at 阿塞洛-米塔尔's plant in Asturias, Spain, a CO₂ conversion rate of 90% and a hydrogen conversion rate of 75% has been achieved, higher than the project target of a CO₂ conversion rate of 85% or higher and a hydrogen conversion rate of 60% or higher using this technology.^*1 . To obtain these results, it was important to carry out a CO₂ capture process reaching 90% of CO₂ 纯度.

  作为下一步, the two companies will further optimise the conditions, replace the catalyst with a high-performance one, and conduct a long-term test with a higher reaction yield by December 2023. 同时, they will consider new projects to demonstrate the ability to scale up the new technology.

  Steelmaking accounts for 7-9 percent of global CO₂ 排放. The blast furnace process in particular, which produces pig iron from iron ore, accounts for about 70% of CO₂ 排放 in the steel industry, and therefore reducing these 排放 is a major challenge for the steel industry. 在NEDO项目中，CO₂ separated and captured from blast furnace gas is converted to Synthesis Gas (a mixture of CO and H₂)通过化学过程. The converted syngas is introduced into the blast furnace as a 减少 agent to replace coke (CCU for carbon circulation in steelmaking). 通过项目, the companies will demonstrate technologies that contribute to the effective use of CO₂ 和有限公司₂ 减少.

  In addition to completing the NEDO project, both companies aim to launch a new project to demonstrate the ability to scale up for commercialization.

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Headquartered in 日本, 关井化工有限公司.有限公司. (TSE: 4204) and its subsidiaries make up the SEKISUI 化学 Group. 26,000 employees in over 180 companies throughout 21 countries and regions aim to contribute to improving the lives of the people of the world and the earth’s environment. Thanks to a history of innovation, dedication and a pioneering spirit, SEKISUI 化学 now holds leading positions in its three diverse 业务 divisions as well as top global market share in interlayer film, 泡沫产品, conductive particles and more.
自1947年成立以来, the SEKISUI 化学 Group has dedicated itself to social and environmental contribution and is now an internationally recognized leader in sustainability and environmental initiatives, having recently been selected as one of the 全球 100 most sustainable companies. SEKISUI 化学 Group will continue to maintain a strong corporate presence for 100 years and beyond.