甲酰氯甘蔗基生物炭吸附二氧化硫性能研究

以甘蔗渣为生物炭前驱体,浸渍法制备了甲酰氯甘蔗基生物炭,并研究了其内部孔道结构和SO₂吸附性能,结果表明:碳化温度对甲酰氯甘蔗基生物炭的内部孔道结构和吸附量有较大影响,400℃时得到的生物炭比表面积最大,超声波震荡30 min,能使氯化亚砜与二甲基甲酰胺较好地均匀分布于炭表面,在60℃、1500 h-1空速条件下,碳材料二氧化硫吸附量为27.86 mg/g,且高温有利于SO2解吸。

Study on SO2 Adsorption Performance of Formyl Chloride Sugarcane Based Biochar

With bagasse as biochar precursor,impregnation method for the formyl chloride sugarcane biochar,and its inner hole structure and SO₂ adsorption performance was studied.The results show that the carbonization temperature on the formyl chloride sugar cane based biochar than biochar has a great influence on internal hole structure and adsorption quantity.The maximum specific surface area of biochar can be obtained at 400℃,ultrasonic oscillations 30 min,can make the sulfoxide chloride and dimethyl formamide better uniform distribution in the surface of carbon.Under the condition of 60℃and 1500 h^-1 airspeed,the SO₂ adsorption capacity of carbon material is 27.86 mg/g,and the high temperature is conducive to SO₂ desorption.