Fate of Nitrogen and Sulfur during Reduction Process of Carbon-containing Pellet Prepared by Vapor Deposition of Gaseous-Tar and the Influences of the Hetero Elements on the Reduction Behavior and Crushing Strength
Fate of Nitrogen and Sulfur during Reduction Process of Carbon-containing Pellet Prepared by Vapor Deposition of Gaseous-Tar and the Influences of the Hetero Elements on the Reduction Behavior and Crushing Strength
复制标题
气相焦油气相沉积含碳球团还原过程中氮、硫的去向及杂元素对还原行为和压碎强度的影响
DOI：
10.2355/isijinternational.isijint-2017-577
复制
发表时间：
2018
期刊：
影响因子：
--
通讯作者：
T. Akiyama
中科院分区：
文献类型：
--
作者：
Y. Mochizuki;N. Tsubouchi;T. Akiyama
在日本，钢铁制造业在能源、资源和环境方面存在三个主要问题：能源消耗高、资源枯竭和资源价格上涨、CO2排放量大。因此，需要能够同时解决这三个问题的技术。到目前为止，降低热储备区温度有望减少CO2排放和/或高炉能耗。1 -3）因此，快速还原炼铁材料的技术开发对于解决这些问题非常重要。然而，在高炉中使用需要具有低还原分解指数（RDI）的铁材料，因为还原分解在高炉的上部区域中通过在具有体积膨胀的块矿/烧结矿中将赤铁矿还原成磁铁矿而发生，这导致高炉中的透气性损失。4）通常，低RDI块状/烧结铁矿石焦油气相沉积含碳球团还原过程中氮、硫的去向及其对还原行为和破碎强度的影响
In Japan, the iron-steel making industry has three main problems related to energy, resources, and the environment: high energy consumption, depleting resources and/or appreciating resource prices, and a large amount of CO2 emission, respectively. Thus, technologies that can simultaneously address these three problems are in demand. So far, reducing the thermal reserve zone temperature is expected to reduce CO2 emissions and/or energy consumption from blast furnaces.1–3) Therefore, the technical development of ironmaking materials that are rapidly reducible is very important to solve these problems. However, iron materials with a low reduction disintegration index (RDI) are required for use in blast furnace because the reduction disintegration occurs in the upper region of the blast furnace by the reduction of hematite to magnetite in lump ore/sinters with a volumetric expansion, which causes a loss of permeability in the blast furnace.4) In general, lump/sinter iron ores of low RDI Fate of Nitrogen and Sulfur during Reduction Process of Carboncontaining Pellet Prepared by Vapor Deposition of Gaseous-Tar and the Influences of the Hetero Elements on the Reduction Behavior and Crushing Strength