| 滴流床中乙醛液相氧化合成过氧乙酸新工艺 |
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| 引用本文： | 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]. 中国化学工程学报, 2007, 15(3): 320-325. DOI: 10.1016/S1004-9541(07)60087-1 |
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| 作者姓名： | 张腾云 罗京莉 K.Chuang 钟理 |
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| 作者单位： | [1]College of Chemical and Energy Engineering, South China University of Technology, Guangzhou 510640, China [2]Department of Chemical ＆ Materials Engineering, University of Alberta, Edmonton, AB Canada, T6G 2G6 |
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| 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?n 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.
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| 关 键 词： | 滴流床 乙醛 液相氧化 过氧乙酸 合成工艺 |
| 收稿时间： | 2006-07-19 |
| 修稿时间： | 2006-07-192006-11-02 |
Peracetic acid synthesis by acetaldehyde liquid phase oxidation in trickle bed reactor |
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| ZHANG Tengyun,LUO Jingli,K.Chuang,ZHONG Li. Peracetic acid synthesis by acetaldehyde liquid phase oxidation in trickle bed reactor[J]. Chinese Journal of Chemical Engineering, 2007, 15(3): 320-325. DOI: 10.1016/S1004-9541(07)60087-1 |
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| Authors: | ZHANG Tengyun LUO Jingli K.Chuang ZHONG Li |
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| Affiliation: | College of Chemical and Energy Engineering, South China University of Technology, Guangzhou 510640, China;Department of Chemical & Materials Engineering, University of Alberta, Edmonton, AB Canada, T6G 2G6 |
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| 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 selectivity of 91.84% can be obtained at higher temperature of 55℃ when the residence time is 5.5min and the acetaldehyde 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 Cccoy. |
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| Keywords: | peracetic acid liquid phase oxidation acetaldehyde trickle bed |
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