活性炭吸附黏胶纤维生产废气中的CS2

分别采用静态吸附和柱穿透吸附研究了活性炭对黏胶纤维生产废气中CS₂的吸附性能,考察了温度、水蒸气含量和预吸附H₂S时间对活性炭吸附CS₂效果的影响。实验结果表明：活性炭静态吸附CS₂的吸附等温线可用D-R方程很好地拟合,吸附温度升高,活性炭对CS₂的吸附量降低;Y-N方程能很好地拟合CS₂在活性炭上的柱吸附穿透过程,吸附温度升高,CS₂在活性炭上的吸附穿透时间缩短;进气水蒸气含量增大,吸附穿透时间缩短;预吸附H₂S时间延长,活性炭对CS₂的吸附穿透时间缩短;脱附温度升高,CS₂脱附率和脱附速率均加快。

Adsorption-desorption of CS2 from viscose fiber production waste gas on activated carbon

The adsorption of CS₂ in the production of viscose fiber was studied by static adsorption and column breakthrough adsorption,respectively. Effects of temperature,water vapor content and H₂S pre-adsorption time on the adsorption of CS₂ by activated carbon were investigated. The experimental results showed that the adsorptive isotherms of CS₂ could well fit the D-R equation and with the adsorption temperature increasing,the adsorption capacity of CS₂ by activated carbon decreased. The Y-N equation could well fit the breakthrough adsorption process of CS₂ on activated carbon. During the column breakthrough adsorption process,the adsorption breakthrough time of CS₂ on activated carbon was shortened,with the adsorption temperature increasing,the inlet vapor content increasing and the H₂S pre-adsorption time prolonging. Furthermore,with the increasing of temperature,the desorption rate and desorption speed of CS₂ both increased.