关键词: 乙烯 , 丙醛 , 吸附剂 , 活性炭 , 3A分子筛 , 亚硫酸氢钠溶液

Abstract: The experiment of screening agents of removing propanal has carried on. The experimental results showed that the removing rate of propanal by anion resin had reduced to less than 40% after adsorbing 120 minutes. And the removing rate of propanal by 3A molecular sieve had also reduced to less than 40% after adsorbing 200 minutes. But the removing rate of propanal by activate carbon still had about 60% after adsorbing 300 minutes. Propanal was removed more than 99% by sodium hydrogensulfite solution. The rate of removal propanal has been improved when increased the amount of 3A molecular sieve and activated carbon, which had a better absorbing effect for propanal. But the 3A molecular sieve had a smaller saturated adsorption. Meanwhile, activate carbon, which had a larger saturated adsorption for propanal, was choosed for the different feed gas flow rate and selectivity experiments. It was concluded that the removing rate of propanal was the highest in the feed gas flow of 30 mL/min and the lowest in the feed gas flow of 70 mL/min. And the ethylene adsorption rate of active carbon had reduced to less than 1% after adsorbing 40 minutes, what is more, the propanal removing rate of active carbon was nearly the same as the previous one.

Key words: Ethylene, Propanal , Adsorbents ,  Active Carbon , 3A Molecular Sieve , Sodium Hydrogensulfite Solution