生物质复合型煤固硫特性研究

A Study of the Sulfur Retention Characteristics of Biomass Compound Type of Coal

对所研制的生物质复合型煤的固硫机理进行了分析 ,并对生物质复合型煤的固硫特性进行了试验研究 ,结果表明生物质复合型煤较一般型煤有更高的固硫率 ,当Ca/S=2 0、燃烧温度低于 90 0℃时 ,生物质复合型煤的固硫率可以达到 90 %以上 ;生物质复合型煤的固硫率受燃烧温度、生物质添加量、钙硫比等因素影响 ,加入铁系氧化物能增强生物质复合型煤的固硫性能。

On the basis of analyzing the sulfur retention mechanism of the biomass compound type of coal developed by the authors an experimental study was conducted of the sulfur retention characteristics of this type of coal. The results of the study indicate that the coal under discussion enjoys a higher sulfur retention ratio than that of conventional types of coal. When Ca/S is equal to 2 and the combustion temperature lower than 900 ℃ the sulfur retention ratio of the biomass compound type of coal can reach in excess of 90%. This retention ratio is subject to various factors, such as combustion temperature, the amount of biomass added, Ca/S ratio, etc. Some additives, such as Fe 2O 3 can significantly enhance the sulfur retention capability.