The Technology of Producing Sponge Iron, Lime and Nitrogen-Free Gas Simultaneously with Enclosed Heating Furnace

Abstract

本文阐明了利用封闭式加热炉同时生产海绵铁，石灰和无氮型高热值煤气的理论和实验结果。利用氧化铁中的氧直接生产无氮的煤气，利用石灰石分解的二氧化碳和碳生产无氮的煤气，利用石灰捕捉烟道气二氧化碳，这个技术的优点是自然资源得到完全利用，煤炭耗量大大下降，经济效益显著，二氧化碳排放量超过国际能源署要求捕捉掩埋的数量，对生产海绵铁的各种炉型进行了讨论，高炉型应当是能耗最小的炉型，文中也提到了“过度捕捉”。 In this paper, the theoretical and experimental results of simultaneous production of sponge iron, lime and nitrogen-free high calorific value gas by enclosed heating furnace are expounded. The oxygen in iron oxide is used to produce nitrogen-free gas directly. Nitrogen-free gas is produced from carbon dioxide decomposed by limestone and carbon, making use of lime to capture carbon dioxide in flue gas. The advantage of this technology is that natural resources are fully utilized. Coal consumption is greatly reduced and economic benefits are remarkable. Carbon dioxide emissions far exceed the IEA’s requirement to capture buried amounts. Various furnace types for producing sponge iron are discussed. Blast furnace type should be the least energy consumption furnace type. It also refers to “over capture”.