超声内环流气升式反应器中环己烯环氧化反应的研究

CIESC Journal

• REACTION KINETICS, CATALYSIS AND…… • 上一篇下一篇

超声内环流气升式反应器中环己烯环氧化反应的研究

张萍; 杨梅; 吕效平

^a College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009, China
^b Lianyungang Technical College, Lianyungang 222002, China

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-04-28 发布日期:2007-04-28
通讯作者: 张萍

Epoxidation of cyclohexene with oxygen in ultrasound airlift loop reactor

ZHANGPing;YANGMei;LÜXiaoping

^a College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009, China
^b Lianyungang Technical College, Lianyungang 222002, China

Received:1900-01-01 Revised:1900-01-01 Online:2007-04-28 Published:2007-04-28
Contact: ZHANG Ping

摘要/Abstract

摘要： Epoxidation of cyclohexene to cyclohexene oxide was studied in a new type reactor—the ultrasound airlift loop reactor. The influences of ultrasound intensity, molar ratio of isobutyraldehyde to cyclohexene and oxygen gas flow rate on the conversion of cyclohexene and selectivity of cyclohexene oxide were investigated and discussed, and the optimal operation condition was found, under which 95.2% conversion of cyclohexene and 90.7% selectivity of cyclohexene oxide were achieved. The ultrasonic airlift loop reactor utilizes the synergistic effect of sonochemsitry and higher oxygen transfer rate. Possible reaction mechanisms were outlined and the reason of ultrasound promotion of epoxidation reactionwas analyzed.

关键词: airlift loop reactor;ultrasound;epoxidation;cyclohexene;oxygen

Abstract: Epoxidation of cyclohexene to cyclohexene oxide was studied in a new type reactor—the ultrasound airlift loop reactor. The influences of ultrasound intensity, molar ratio of isobutyraldehyde to cyclohexene and oxygen gas flow rate on the conversion of cyclohexene and selectivity of cyclohexene oxide were investigated and discussed, and the optimal operation condition was found, under which 95.2% conversion of cyclohexene and 90.7% selectivity of cyclohexene oxide were achieved. The ultrasonic airlift loop reactor utilizes the synergistic effect of sonochemsitry and higher oxygen transfer rate. Possible reaction mechanisms were outlined and the reason of ultrasound promotion of epoxidation reactionwas analyzed.

Key words: airlift loop reactor, ultrasound, epoxidation, cyclohexene, oxygen

张萍, 杨梅, 吕效平. 超声内环流气升式反应器中环己烯环氧化反应的研究[J]. CIESC Journal.

ZHANGPing,YANGMei,LÜ,Xiaoping. Epoxidation of cyclohexene with oxygen in ultrasound airlift loop reactor[J]. .

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超声内环流气升式反应器中环己烯环氧化反应的研究

Epoxidation of cyclohexene with oxygen in ultrasound airlift loop reactor

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