关键词：钢铁；矿物燃料；熔化；稀释剂
摘 要：When a fossil fuel is burned, oxygen in the air chemically reacts with combustible elements of the fuel to produce heat. Since nitrogen is nearly inert, it is mainly a diluent that carries away some of the energy released during the combustion process and produces pollutants. Oxygen-enhanced combustion has been considered as an attractive alternative in order to increase efficiency, to reduce volume of the flue gas, to lower emissions of NO_x and CO_2, and to improve heat transfer and flame stability characteristics. With decreasing costs involved in production of oxygen from air, oxygen-enhanced combustion may not only be limited to glass-melting and steel-making furnaces but also may have potential in the power-generation industry using fossil fuels such as coal and natural gas. Substantial research has been conducted to evaluate the effects of oxygen enrichment on overall efficiency, fuel savings, heat transfer rates, and pollutant emissions.
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