Abstract: The activated carbon/polyurethane sponge (AC/PU) composites are prepared by physical load method.The effects of the volatilization temperature and time of diluents,and the mass concentration of glue during preparation process on the structure of the prepared composites are investigated.As well,the effects of the structure of the prepared composites on the adsorption performance are also studied.The results show that neither volatilization temperature nor time of diluents has significant effect on the composites' structure.The larger the mass concentration of the glue,the larger the activated carbon load amount,and then the greater the bed pressure drop,but the specific surface area of activated carbon is not affected significantly.When the mass concentration of glue is 50%,the load capacity of polyurethane sponge is 13-15 g/g of activated carbon.When the wind speed reaches 12 m·s-1,the pressure drop of the bed fluctuates in the range of 0.4-0.5 kPa.Compared to the fixed-bed,the pressure drop in this bed is 17%-33% less.The average adsorption capacity for asphalt-based activated carbon sponge is 0.092 4 g·g-1,with a drop of 32.2%.The penetration adsorption capacity of as prepared AC/PU increases 2.37 times compared with the powder activated carbon polyurethane sponge (PAC/PU).
林云, 梁晓怿, 李松原, 吕妍. 活性炭/聚氨酯海绵的制备工艺与吸附性能[J]. 现代化工, 2018, 38(7): 162-166.
LIN Yun, LIANG Xiao-yi, LI Song-yuan, LV Yan. Preparation of activated carbon/polyurethane sponge and its adsorption property. Modern Chemical Industry, 2018, 38(7): 162-166.
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