滴流床中乙醛液相氧化合成过氧乙酸新工艺

CIESC Journal

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滴流床中乙醛液相氧化合成过氧乙酸新工艺

张腾云^a; 罗京莉^b; K.Chuang^b; 钟理^a

^a College of Chemical and Energy Engineering, South China University of Technology,
Guangzhou 510640, China
^b Department of Chemical & Materials Engineering, University of Alberta, Edmonton, AB
Canada, T6G 2G6

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-06-28 发布日期:2007-06-28
通讯作者: 张腾云

Peracetic acid synthesis by acetaldehyde liquid phase oxidation in trickle bed reactor

ZHANG Tengyun^a; LUO Jingli^b; K.Chuang^b; ZHONG Li^a

^a College of Chemical and Energy Engineering, South China University of Technology,
Guangzhou 510640, China
^b Department of Chemical & Materials Engineering, University of Alberta, Edmonton, AB
Canada, T6G 2G6

Received:1900-01-01 Revised:1900-01-01 Online:2007-06-28 Published:2007-06-28
Contact: ZHANG Tengyun

摘要/Abstract

摘要： In this paper, shorter residence time (a few minutes) with high yield in the trickle bed
process for peracetic 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.

关键词: peracetic acid;liquid phase oxidation;acetaldehyde;trickle bed

Abstract: In this paper, shorter residence time (a few minutes) with high yield in the trickle bed
process for peracetic 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.

Key words: peracetic acid, liquid phase oxidation, acetaldehyde, trickle bed

张腾云, 罗京莉, K.Chuang, 钟理. 滴流床中乙醛液相氧化合成过氧乙酸新工艺[J]. CIESC Journal.

ZHANG Tengyun, LUO Jingli, K.Chuang, ZHONG Li. Peracetic acid synthesis by acetaldehyde liquid phase oxidation in trickle bed reactor[J]. .

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滴流床中乙醛液相氧化合成过氧乙酸新工艺

Peracetic acid synthesis by acetaldehyde liquid phase oxidation in trickle bed reactor

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