Direct Gas-Phase Epoxidation of Propene with Hydrogen Peroxide on TS-1 Zeolite in a Microstructured Reactor
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- 作者：Elias Klemm ; Enrico Dietzsch ; Thomas Schwarz ; Thomas Kruppa ; Armin Lange de Oliveira ; Frank Becker ; Georg Markowz ; Steffen Schirrmeister ; Rü ; diger Schü ; tte ; Karl J. Caspary ; Ferdi Schü ; th
- 刊名：Industrial & Engineering Chemistry Research
- 出版年：2008
- 出版时间：March 19, 2008
- 年：2008
- 卷：47
- 期：6
- 页码：2086 - 2090
- 全文大小：118K
- 年卷期：v.47,no.6(March 19, 2008)
- ISSN：1520-5045
文摘
Direct epoxidation of propene with hydrogen peroxide vapor was conducted in a microstructured reactorcontaining TS-1 catalyst coatings. At 140 
C, 1 bar, 5 vol % hydrogen peroxide, and 15 vol % propene,productivities of more than 1 kg of propene oxide per kg of catalyst and hour are obtained in lab scale, whichis in an industrially highly relevant range. Excellent selectivities to propene oxide based on propene of >90%were reached. Potential and need for improvement lie in the propylene oxide selectivity based on hydrogenperoxide, which was observed to be about 25%. By increasing the molar excess of propene to about 6.6,propylene oxide selectivities related to hydrogen peroxide of up to 60% have been observed in the pilotplant.
C, 1 bar, 5 vol % hydrogen peroxide, and 15 vol % propene,productivities of more than 1 kg of propene oxide per kg of catalyst and hour are obtained in lab scale, whichis in an industrially highly relevant range. Excellent selectivities to propene oxide based on propene of >90%were reached. Potential and need for improvement lie in the propylene oxide selectivity based on hydrogenperoxide, which was observed to be about 25%. By increasing the molar excess of propene to about 6.6,propylene oxide selectivities related to hydrogen peroxide of up to 60% have been observed in the pilotplant.