Capturing CO2 Emissions in the Iron Industries using a Magnetite-Iron Mixture

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• 作者：Dr. Sushant Kumar ; Dr. Vadym Drozd ; Dr. Andriy Durygin and Prof. Dr. Surendra K. Saxena
• 刊名：Energy Technology
• 出版年：2016
• 出版时间：May 2016
• 年：2016
• 卷：4
• 期：5
• 页码：560-564
• 全文大小：1031K
• ISSN：2194-4296

文摘

We examined a mixture of magnetite (Fe₃O₄) and iron (Fe) as a possible CO₂ sorbent easily applicable for any ironmaking industries. The mixture reacts with CO₂ to form siderite (FeCO₃). Our experimental results illustrate a capture capacity of 7.98 mmolCO2  g-1sorbent for the reactant mixture at 200 °C and 10 bar CO₂ pressure in 3 h. The results also show that the kinetics of the carbonation reaction vastly depend on the applied temperature and CO₂ pressure. The magnetite was completely regenerated by heating siderite at 350 °C under air flow. The proposed set of reactions can be integrated at any ironmaking sites and can provide a potential solution for CO₂ capture in the future.