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Study on Desulfurization Characteristics of Limestone in a O_2/CO_2 Atmosphere

Keliang Pang

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Abstract

The desulfurization characteristics of pulverized limestone have been studied with the help of a drop-tube furnace.Tests show that a combustion assisting gas mixture of 20% O_2 and 80% CO_2 is not only more favourable for desulfurization than air,but in addition helps to diminish the emission of NO_x and is thus helpful for simultaneously getting the three pollutants i.e.CO_2,SO_2 and NO_x,under control.Figs 8 and refs 8.

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The desulfurization characteristics of pulverized limestone have been studied with the help of a drop-tube furnace.Tests show that a combustion assisting gas mixture of 20% O_2 and 80% CO_2 is not only more favourable for desulfurization than air,but in addition helps to diminish the emission of NO_x and is thus helpful for simultaneously getting the three pollutants i.e.CO_2,SO_2 and NO_x,under control.Figs 8 and refs 8.

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Available abstract

The desulfurization characteristics of pulverized limestone have been studied with the help of a drop-tube furnace.Tests show that a combustion assisting gas mixture of 20% O_2 and 80% CO_2 is not only more favourable for desulfurization than air,but in addition helps to diminish the emission of NO_x and is thus helpful for simultaneously getting the three pollutants i.e.CO_2,SO_2 and NO_x,under control.Figs 8 and refs 8.

Key concepts: Flue-gas desulfurization, Combustion, Atmosphere (unit), Pollutant, Waste management, Pulverized coal-fired boiler, Chemistry, Air pollutants

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