Acetone, Methyl Ethyl Ketone, Ethyl Acetate, Butyl Acetate, And Dmf, The Solubility In Water And In The Leather Waste Gas Treatment Applications

It is rather important to treat organic waste gas in the air pollution control. Absorption is the most economical, convenient and well-developed among other treatment methods. In the absorption process, the gas solubility in the solvent plays a key role on removal efficiency and operation price. This paper focus on the gas solubility of Acetone, Z-Butanone, Ethyl acetate , n-Butyi acetate, N,N-Dimethylformamide(DMF) in the water at 15~40℃ and normal air pressure. The infection of temperature and liquid concentration on the gas solubility is studied. UNIFAC model is used to simulate the gas-liquid equilibira and compared with experimental data. The operation character of packed tower in leaher production waste gas treatment is also investigated.From the experimental data, the gas solubility from high to low in the water can be ranged as DMF, Acetone , Z-Butanone, Ethyl acetate and n-Butyi acetate. UNIFAC model is accord well with the experimental data at temperature below 30℃ and low liquid concentration. But the deviation between UNIFAC model and experimental data increases as the temperature or the liquid concentration increases. For the same substance at low liquid concentration, the gas solubility of it remain unchanged when temperature changes.The removal efficiency of DMF and Acetone decreases with increase of The liquid concentration and inlet concentration in the industrial packed tower. The removal efficiency of Acetone is affected more intensive than that of DMF. The outlet temperature decreases as L/G increases, and they are in a linear relation. The total pressure drop increases with the increase of gas velocity. The liquid hold is affected by the insufflation density.