摘要
对直径280mm、扩大段直径500mm、外循环管直径65mm、总高2900mm的外循环型鼓泡式反应器,在气体空塔线速U_g为0.04～0.55m/s时,用静压差法和脉冲示踪法测定了不同部位的气含率E_g,E_(pg),E_(ug)和循环液速率u_1,并获得了它们的关联式:对反应段,E_g=0.4556U_g^(0.3198)[U_g/(G_g+U_1)]^(0.7396);对反应器扩大段,E_(ug)=0.9389U_(ug)^(0.4431);对循环管,E_(pg)=0.41127U_g^(0.9195),u_1=0.8661U_g^(0.2181).外循环型鼓泡式反应器的液相完全混合时间比直筒标准型鼓泡式反应器约延长15s.
The ratios of gas holdup Eg , Epg , Eug and circulating liquid velocity u1 were measured by static pressure difference method and pulse tracer method respectively in a external circulation bubbling reactor of diameter 280 mm , bigger section diameter 500 mm , external circulation tube diameter 65 mm and total height 2.9 m at gas velocity of 0.04 - 0.55 m /s . Their correlation equations were obtained : in lower section , Eg=04556 Ug0.3198 [tg/(Ug+U1,)]0.7396; in bigger section , Eug=0.9389Uug0.4431 ;in circulation tube , Epg=0.411 27 Ug0.9195, u1 =0.866 1 Ug0.2181. The liquid phase complete mixing time of external circulation bubbling reactor was 15 s later than that of standard cylinder bubbling reactor .
出处
《合成橡胶工业》
CAS
CSCD
北大核心
1995年第3期151-153,共3页
China Synthetic Rubber Industry
基金
青岛化工厂资助项目
关键词
鼓泡式
反应器
气含率
循环液速率
数学模型
external circulation bubbling reactor
gas holdup
circulating liquid velocity
liquid phase complete mixing time
mathematical model
