滴流床中乙醛液相氧化合成过氧乙酸新工艺(英文)

被引：6

作者：

张腾云 ^{[1
]}

罗京莉 ^{[2
]}

KChuang ^{[2
]}

钟理 ^{[1
]}

机构：

[1] College of Chemical and Energy Engineering,South China University of Technology

[2] Department of Chemical&Materials Engineering,University of Alberta

来源：

Chinese Journal of Chemical Engineering | 2007年 / 03期

关键词：

D O I：

暂无

中图分类号：

TQ223.8 [有机过氧化物];

学科分类号：

080706 [化工过程机械];

摘要：

In this paper,shorter residence time(a few minutes)with high yield in the trickle bed process for per- acetic acid synthesis by acetaldehyde liquid phase oxidation can be realized on the selected packing material SA-5118.For acetaldehyde in acetone with ferric ion as catalyst,the optimized process conditions were presented. The main factors influencing the yield,selectivity and conversion are residence time,temperature and acetaldehyde concentration,respectively.The temperature range checked is from 30 to 65℃.High yield of 81.53%with high se- lectivity of 91.84%can be obtained at higher temperature of 55℃when the residence time is 5.5min and the acet- aldehyde concentration is 9.85%(by mass).And there is a critical acetaldehyde concentration point(Cccp)between 18%and 19.5%(by mass).At temperature less than 55℃,the highest yield to peracetic acid at each temperature level increases with temperature when the acetaldehyde concentration is below Cccp and decreases with temperature when the acetaldehyde concentration is above Cccp.

引用

页码：320 / 325

页数：6