固态胺纤维真空解吸CO2影响因素

在温度30～90℃、时间1～6 min、绝对压力700～100 Pa范围内,单因素考察时,其余2个因素依次选取3 min,400 Pa,60℃,得到固态胺纤维(SAF)真空解吸CO2的效率分别为:16.63%～85.47%,32.11%～72.30%,46.42%～78.02%。通过正交实验,得到各因素对反应影响的显著性依次为温度、绝对压力及时间。在实验室条件下,考虑到应用装置寿命、能耗、体积及重量,较优反应条件取温度70℃,再生时间2.5 min,绝对压力300 Pa,此时再生效率为82.32%。

Research on desorption of CO2 in solid amine fiber by vacuum

In the temperature range of 30～90 ℃,time of 1～6 min,absolute pressure of 700~100 Pa,the regeneration efficiency of solid amine fiber(SAF)desorption of CO2 by vacuum were 16.63%~85.47%,32.11%~72.30%,46.42%~78.02% respectively,as single factor was investigated,and the rest took 3 min,400 Pa,60 ℃ in turn.Through the orthogonal experiment,the significance sequence according to the effect of various factors on the reaction was as follows:temperature,absolute pressure,time.Under laboratory conditions,considering the lifetime,energy consumption,size,and weight of the application device,the optimum conditions of solid amine fiber regeneration by vacuum were:70 ℃,2.5 min,300 Pa,the regeneration efficiency was 82.32% simultaneously.