HmimBF_4-二乙醇胺复合材料吸收SO_2的研究  

Research on SO_2 Absorption Using HmimBF_4-Diethanolamine Composite Material

作　　者：刘宝友[1] 张佩文 王涛[1] LIU Baoyou;ZHANG Peiwen;WANG Tao(College of Environment Science and Engineering,Hebei University of Science and Technology,Shijiazhuang 050000,China)

机构地区：[1]河北科技大学环境科学与工程学院,河北石家庄050000

出　　处：《环境科学与技术》2018年第11期132-136,共5页Environmental Science & Technology

基　　金：河北省自然基金项目(2015208122);2017河北科技大学雾霾治理专项课题

摘　　要：测定了HmimBF_4-二乙醇胺复合材料的密度黏度等物理性质,并对其进行了在不同摩尔比和不同温度下的SO_2吸收实验。结果表明,当摩尔比为8∶2时复合材料对SO_2的吸收量最大,吸收量为0.592 1 g/g(45℃,1 atm)。复合材料在离子液体摩尔数(0,0.669 9)区间内表现出拮抗作用,在(0.669 9,1)区间内表现出协同作用。在摩尔比8∶2和45℃条件下复合材料可重复吸收至少8次,均表现较高吸收效率。以复合材料黏度与SO_2吸收量的比值最小为优化目标,建立了非线性规划模型。利用MATLAB软件优化,得到在45℃条件下离子液体摩尔比x=0.613 3时,复合材料能够在较小的黏度下实现相对较高的吸收量,吸收量为0.540 7 g/g。The density and viscosity physical properties of HmimBF4-diethanolamine composite material were measured and SO2 absorption experiments were carried out at different molar ratios and temperatures. In the molar ratio of 8∶2, the composite material has the largest absorption amount of SO2, with the absorption amount as 0.592 1 g/g(45 ℃, 1 atm). The composite material showed antagonism effect in the range mole of ionic liquid(0, 0.669 9), and showed synergistic in the range of(0.669 9,1). At molar ratio of 8∶2 and 45 ℃, the composite material can be repeatedly absorbed for at least 8 times and still has higher absorption efficiency. Taking the minimum ratio of composite viscosity and SO2 absorption as the optimization objective, a nonlinear programming model was established. Using MATLAB software to optimize the ionic liquid molar ratio x = 0.386 7 at 45 ℃, the composite material can achieve a relatively high absorption at a small viscosity with an absorption of0.540 7 g/g.

关 键 词：离子液体 复合材料 SO2 吸收 协同作用 拮抗作用 

分 类 号：X701.3[环境科学与工程—环境工程]