论文部分内容阅读
Experiments were conducted on a trickle bed with 0.283m ID to elucidate the relation-ship between hysteretic phenomena and 1iquid distribution.The hysteresis of pressure drop andthe variance of radial liquid distribution were observed simultaneously.Residence time distribu-tion(RTD),holdup and mean residence time(RT) of liquid phase were also found to demonstratehysteresis of the same nature.RTD,liquid holdup and mean RT calculated with a simple modelfrom the distribution of liquid flow rate show characteristics consistant with the experimelltal data,suggesting that the hyteretic phenomena originate from the multiplicity and nonuniformity of liquidfiow distribution.
Experiments were conducted on a trickle bed with 0.283m ID to elucidate the relation-ship between hysteretic phenomena and 1iquid distribution. Hysteresis of pressure drop and the variance of radial liquid distribution were observed simultaneously. Residence time distribu tion (RTD), holdup and mean residence time (RT) of liquid phase were also found to demonstratehysteresis of the same nature. RTD, liquid holdup and mean RT calculated with a simple modelfrom the distribution of liquid flow rate show characteristics consistant with the experimelltal data, suggesting that the hyteretic phenomena originate from the multiplicity and nonuniformity of liquidfiow distribution.