转炉渣吸附CO2反应研究

炼钢 ›› 2019, Vol. 35 ›› Issue (2): 66-69.

转炉渣吸附CO2反应研究

孔祥辉1，陈韧1，李玲玲1，孙野1，张作良1，李丽丽1，颜澍1,2

（1.辽宁科技学院辽宁省本溪低品位非伴生铁矿优化应用重点实验室，辽宁本溪 117004; 2.福建罗源闽光钢铁有限责任公司，福建福州 350000）

接受日期:1900-01-01 出版日期:2019-04-05

Study on CO2 adsorption reaction of converter slag

Accepted:1900-01-01 Online:2019-04-05

摘要/Abstract

摘要： 采用PCA-2200型化学吸附分析仪，考察了不同温度下转炉渣对纯CO2和模拟高炉煤气中CO2的吸附能力。模拟高炉煤气的成分为φ(CO2)=19.89 %、φ(CO)=25.00 %以及φ(N2)=55.11 %，没有考虑高炉煤气中其他少量气体的影响。试验结果表明：温度对转炉渣吸附CO2反应有显著影响，升高温度可以提高转炉渣对CO2的吸附能力。在400 ℃时，每千克转炉渣吸附纯CO2和模拟高炉煤气中CO2量分别为3.448 g和5.575 g，可以看出，该温度下转炉渣对模拟高炉煤气中CO2吸附能力更强，随着反应温度升高到500 ℃和550 ℃时，转炉渣对纯CO2的吸附能力强于高炉煤气中CO2。在550 ℃时，每千克转炉渣吸附纯CO2和模拟高炉煤气中CO2量达到最高，分别为9.339 g和7.062 g。

关键词: 转炉渣, 纯CO2, 模拟高炉煤气, CO2吸附

Abstract: The adsorption capacity of converter slag for pure CO2 and CO2 in simulated blast furnace gas was detected by PCA-2200 chemical adsorption analyzer. Regardless of the influence of other gases in the blast furnace gas,the simulated blast furnace gas was consisted of 19.89% (volume fraction) CO2, 25.00 % CO, and 55.11% N2. The results show that the temperature has a notable effect on the CO2 adsorption reaction of converter slag. Increasing temperature improves the adsorption capacity of converter slag for CO2. At 400 ℃,the amount of CO2 adsorbed by converter slag per kilogram of pure CO2 and simulated blast furnace gas is 3.448 g and 5.575 g, respectively. However, when the reaction temperature rises to 500 ℃ and 550 ℃, the adsorption capacity of converter slag for pure CO2 is higher than that for CO2 in simulated blast furnace gas. At 550 ℃, the uptake for pure CO2 and CO2 in simulated blast furnace gas by the per kilogram converter slag reached the highest, which are 9.339 g and 7.062 g, respectively.

Key words: converter slag, pure CO2, simulated blast furnace gas, CO2 adsorption

孔祥辉1，陈韧1，李玲玲1，孙野1，张作良1，李丽丽1，颜澍1,2. 转炉渣吸附CO2反应研究[J]. 炼钢, 2019, 35(2): 66-69.