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Direct epoxidation of propylene to propylene oxide on various catalytic systems: A combinatorial micro-reactor study
Date
2015-02-10
Author
Kalyoncu, Sule
Duzenli, Derya
Önal, Işık
Seubsai, Anusorn
Noon, Daniel
Senkan, Selim
Metadata
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A combinatorial approach is used to investigate several bimetallic catalytic systems and the promoter effect on these catalysts to develop highly active and selective catalysts for direct epoxidation of propylene to propylene oxide (PO) using molecular oxygen. 2%Cu/5%Ru/c-SiO2 catalyst yielded the highest performance with high propylene conversion and PO selectivity among the bimetallic catalytic systems including silver, ruthenium, manganese and copper metals. On the other hand, the most effective catalyst and promoter in the epoxidation reaction was determined to be sodium chloride promoted Cu-Ru catalyst supported over SiO2 with 36% selectivity & 9.6% conversion (3.46% yield) at 300 degrees C and 0.5 feed gas ratio (propylene/oxygen).
Subject Keywords
Propylene
,
Epoxidation
,
Ru
,
Cu
,
SiO2
URI
https://hdl.handle.net/11511/32308
Journal
CATALYSIS COMMUNICATIONS
DOI
https://doi.org/10.1016/j.catcom.2014.12.002
Collections
Graduate School of Natural and Applied Sciences, Article
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A combinatorial approach is used to investigate several alkali metals promoted Cu-Ru binary oxide catalysts with improved catalytic performance in the propylene partial oxidation. 2 %Cu/5 %Ru/c-SiO2 catalyst had the best yield with high propylene conversion and propylene oxide (PO) selectivity. Among the promoters screening in the study, NaCl promotion significantly increased the PO selectivity accompanied by some attenuation in the total propylene conversion. It was proposed that binary oxide catalysts rev...
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Catalytic reaction of propylene to propylene oxide on various catalysts
Kalyoncu, Şule; Önal, Işık; Şeker, Erol; Department of Chemical Engineering (2012)
Throughout this thesis work, various catalysts were investigated with combinational approach to develop highly active and selective novel catalysts for direct epoxidation of propylene to PO using molecular oxygen. The promoted and un-promoted silver (Ag), copper (Cu), ruthenium (Ru), manganese (Mn) mono and multimetallic catalytic systems over different silica supports were prepared via sol-gel method and incipient wetness method. In addition to support effect, the effects of different promoters on the cata...
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BibTeX
S. Kalyoncu, D. Duzenli, I. Önal, A. Seubsai, D. Noon, and S. Senkan, “Direct epoxidation of propylene to propylene oxide on various catalytic systems: A combinatorial micro-reactor study,”
CATALYSIS COMMUNICATIONS
, pp. 16–20, 2015, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/32308.