丙酮/氯气的氯化反应过程传质系数  

Mass-Transfer Coefficients of Chlorination Process of Acetone/Chlorine

作　　者：姚日生[1] 翟林峰[1] 尤亚华[1] 邓胜松[1] 

机构地区：[1]合肥工业大学化工学院,安徽合肥230009

出　　处：《化学反应工程与工艺》2002年第1期90-93,共4页Chemical Reaction Engineering and Technology

基　　金：安徽省自然科学基金资助项目 (990 4 5 4 2 0 )

摘　　要：利用短的湿壁管并结合双膜模型研究了氯气与丙酮并流氯化反应过程的传质系数 ,考察了丙酮流量VL、氯气流量 QG及湿壁管长 l对该气液反应传质的影响。表明该传质过程可视为受气膜控制 ,统计回归分析得气相传质系数关联式 :当 Re≤ 2 0 0 ,有 Nu=k GDt L/ D =2 9.34Re L0 .185Re-0 .1Pr0 .5(l/ Dt L) -0 .73 5;当 Re>2 0 0 ,有 Nu=k GDt L/ D=1.6 0 6 Re L0 .0 8Re0 .52 4Pr0 .5(l/ Dt L) -0 .A gas phase mass transfer process was experimentally studied, in which the chlorine and acetone react in a short paralled flow wetted wall tube reactor. Some factors effected on the gas phase mass transfer, including the liquid rate V L of acetone, the gas rate Q G of chlorine and the length l of the reaction tube, were investigated. Based on the statistic results, two dimensionless corretations were got as follows: Re≤200,Nu=k G D tL / D =29.34 Re L 0.185 Re -0.1 Pr 0.5 (l/D tL ) -0.735 and Re>200,Nu=k G D tL / D =1.606 Re L 0.08 Re 0.524 Pr 0.5 (l/D tL ) -.0735

关 键 词：湿壁管 氯化反应 气相传质系数 氯气 丙酮 

分 类 号：TQ224.5[化学工程—有机化工] TQ021.4