CS_2在超高交联树脂上的吸附脱附特性研究

Adsorption and desorption behavior of carbon disulfide on hypercrosslinked resin

研究超高交联树脂对二硫化碳的吸附与脱附性能。以静态法测定了二硫化碳在吸附树脂上的吸附等温线,采用Dubinin-Radushkevich(D-R)方程和Langmiur方程对吸附平衡数据进行拟合,显示D-R方程拟合效果更好,R2均大于0.99;研究了不同温度(303,313,323 K)下二硫化碳的穿透曲线,结果表明,温度对于树脂吸附二硫化碳具有显著影响,323 K时吸附穿透时间比303 K时减少44.08%;热脱附实验显示,当温度上升到363 K时,吸附树脂能完全再生,且随着温度的升高,其再生速率加快。

The adsorption and desorption properties of carbon disulfide on hypercrosslinked resin were studied.The adsorption isotherm of disulfide carbon on hypercrosslinked resin was studied by static method.The Dubinin-Radushkevich(D-R)and the Langmuir equations were used to fit adsorption equilibrium data.The results showed that the fitting effect of the D-R equation was better,R 2>0.99.The breakthrough curves of carbon disulfide under different temperatures(303,313 and 323 K)were investigated by column adsorption method.The results showed that temperature had an adverse effect on carbon disulfide adsorption on hypercrosslinked resin;the breakthrough time at 323 K decreased by 44.08%compared to that at 303 K.In addition,the thermal desorption experiment showed that the hypercrosslinked resin could be regenerated completely at 363 K,and the rate of regeneration increased with increase of the temperature.