钢铁工业的CO2排放量占人类总CO2排放量的6%,在全球碳排放控制日益严格的大环境下,高碳排放的钢铁工业的生存面临着前所未有的危机,而目前世界最先进的减排方法已达到瓶颈,世界各国都大力开发能够显著降低CO2排放量的突破性新工艺.阐述了欧洲的超二氧化碳炼钢项目的最新进展和未来研究,其中炉顶煤气循环工艺(TGR-BF)、新的熔融还原工艺(HIsarna)、新型直接还原工艺(ULCORED)和碱性电解还原铁工艺(ULCOWIN,ULCOLYSIS)被认为最有前景,结合碳捕集存储技术,最高可降低80% 的CO2排放量,投资成本和运营成本都比传统高炉工艺的要低.
The CO2 emitted by iron and steel industry accounts for 6% of the total world anthropogenic CO2 emission.As the control of CO2 emission becomes increasingly stringent all over the world,the iron and steel industry now is facing an unprecedented crisis.And now even the most advanced technologies for reducing carbon emission have reached the bottleneck,so many countries in the world are striving to develop the breakthrough technologies for significantly cutting the carbon emission.The current progress and future research of ultra-low CO2 steelmaking program in Europe are stated,among which TGR-BF,HIsarna,ULCORED,ULCOWIN and ULCOLYSIS are considered to be the most promising technologies.Combined with the technology of carbon capture and storage,CO2 emission can be reduced by as much as 80%.Compared with the traditional technologies,investment cost and operating cost are much lower.
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