纯碱对石灰水脱除煤气中二氧化碳影响的试验研究

Experimental Study on Soda Affecting Limewater Disposal of Carbon Dioxide From Gas

在实验室中利用Na2CO3与CaO混合后的溶液对模拟高炉煤气进行脱除CO2实验研究。通过研究发现反应溶液的浓度、溶液温度、煤气流速以及液柱高度与喷淋高度之比对CO2脱除率有影响。在试验条件下:反应溶液的浓度为0.6mol/L,气体流速是0.5m/s,溶液的温度是35℃,液柱高度与喷淋高度之比是1∶2时,脱除率达到最大,为59.53%。

The mixed solution of sodium carbonate and calcium oxide removing the carbon dioxide from the simulate blast furnace gas was researched in laboratory. The study found that concentration of reaction solution, solution temperature, gas flow rate and the ratio of spraying height and liquid column height have effects on the removal rate of carbon dioxide. When the concentration of reaction solution is 0.6 mol/L, the gas flow rate is 0.5 m/s, the solu tion temperature is 35 ℃, the ratio of liquid column height and spraying height is 1 ： 2, the maximum removal rate reached 59.53%.