Reduction Behavior of Carbon Composite Pellets Including Alumina and Silica at 1 273 K and 1 373 K

Hyunsik PARK; Veena SAHAJWALLA

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Reduction Behavior of Carbon Composite Pellets Including Alumina and Silica at 1 273 K and 1 373 K

机译：碳复合颗粒（包括氧化铝和二氧化硅）在1 273 K和1 373 K下的还原行为

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The effect of alumina and silica on the reaction behavior of carbon composite pellet was investigated by thermogravimetric analysis at 1 273 K (1 000℃) and 1 373 K (1 100℃). X-ray diffraction was used for the phase analysis of iron oxide changing from hematite to reduced iron. The overall reaction was divided into three stages according to phase transformation of iron oxide. CO and CO_2 from off-gas data was used for kinetic analysis and for understanding reaction mechanism. The Boudouard reaction was largely influenced by alumina and silica that changed CO gas concentration resulting in different reduction behavior of the pellets. Alumina increased the reaction rate of carbon composite pellet while silica decreased the overall reaction rate.

机译：通过在1 273 K（1000℃）和1 373 K（1100℃）下进行热重分析，研究了氧化铝和二氧化硅对碳复合材料粒料反应行为的影响。 X射线衍射用于分析从赤铁矿到还原铁的氧化铁的相分析。根据氧化铁的相变，将整个反应分为三个阶段。来自尾气数据的CO和CO_2用于动力学分析和理解反应机理。 Boudouard反应在很大程度上受到氧化铝和二氧化硅的影响，氧化铝和二氧化硅改变了CO气体的浓度，从而导致颗粒的还原行为不同。氧化铝提高了碳复合颗粒的反应速率，而二氧化硅降低了整体反应速率。

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来源
《ISIJ international》 |2014年第6期|1256-1265|共10页
作者
Hyunsik PARK; Veena SAHAJWALLA;
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作者单位

Centre for Sustainable Materials Research & Technology (SMaRT), School of Materials Science & Engineering, UNSW, SYDNEY, 2052 NSW, Australia;

Centre for Sustainable Materials Research & Technology (SMaRT), School of Materials Science & Engineering, UNSW, SYDNEY, 2052 NSW, Australia;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
中图分类
关键词
iron making; carbon composite pellet; reduction behavior; Boudouard reaction; alumina and silica;

机译：炼铁碳复合颗粒减少行为;Boudouard反应;氧化铝和二氧化硅;

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专利

1. Reduction Behavior of Carbon Composite Pellets Including Alumina and Silica at 1273 K and 1373 K [J] . Hyunsik Park, Veena Sahajwalla ISIJ international . 2014,第6期

机译：碳复合颗粒（包括氧化铝和二氧化硅）在1273 K和1373 K下的还原行为
2. Effect of Silica on Reduction Behaviors of Hematite-carbon Composite Compact at 1 223-1 373 K [J] . Zhikai LIANG, Lingyun YI, Zhucheng HUANG, ISIJ international . 2019,第2期

机译：二氧化硅对在1 223-1 373 K下赤铁矿-碳复合压块还原行为的影响
3. Friction and Wear Behaviors of Carbon Nanotube Reinforced Silica and Alumina Matrix Composites Fabricated by Catalyst Sol-Gel and CVD Process [J] . Lee Kuo-Jung, Yeh Yu-Ting, Cheng Huy-Zu, Materials transactions . 2018,第2期

机译：碳纳米管增强二氧化硅和氧化铝基复合材料的摩擦磨损行为催化剂溶胶 - 凝胶和CVD工艺制备
4. Preparation and Reduction Behavior of Carbon Composite Iron Oxide Pellets Intentionally Including Residual Volatile Matter [C] . Hirokazu Konishi, Tateo Usui, Kazuhiro Azuma International Congress on the Science and Technology of Ironmaking . 2006

机译：碳复合氧化铁颗粒的制备和减少行为有意地包括残留挥发物质
5. Simulation of reduction of iron-oxide-carbon composite pellets in a rotary hearth furnace. [D] . Halder, Sabuj. 2007

机译：旋转炉床式炉中还原铁-碳-碳复合颗粒的模拟。
6. Anomalous Terminal Shear Viscosity Behavior of Polycarbonate Nanocomposites Containing Grafted Nanosilica Particles [O] . Vaidyanath Ramakrishnan, Johannes G. P. Goossens, Theodorus L. Hoeks, 2021

机译：含有接枝纳米硅颗粒的聚碳酸酯纳米复合材料的异常末端剪切粘度行为
7. Reduction behavior of carbon composite pellets including alumina and silica at 1273 K and 1373 K [O] . Park, H, Sahajwalla, V 2014

机译：碳复合颗粒包括氧化铝和二氧化硅在1273 K和1373 K下的还原行为

Reduction Behavior of Carbon Composite Pellets Including Alumina and Silica at 1 273 K and 1 373 K

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