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Selective ring opening of decalin with Pt–Ir/Al2O3 catalyst prepared by catalytic reduction

Paper ID Volume ID Publish Year Pages File Format Full-Text
55703 47062 2011 6 PDF Available
Title
Selective ring opening of decalin with Pt–Ir/Al2O3 catalyst prepared by catalytic reduction
Abstract

The reaction of selective ring opening using alumina supported Pt–Ir catalysts with and without Mg addition was studied. The catalysts were prepared by the method of catalytic reduction, having 1 wt% of Pt whereas the Ir content varied in the range 0.1–0.6 wt%. Electron diffraction showed that the method of preparation leads to catalysts with strong interaction between Pt and Ir being observed the presence of a solid phase of Pt–Ir. In the catalysts without Mg no changes in the hydrogenolysis activity was observed as the Ir content increases. However, a decrease both in acidity and dehydrogenating activity was observed. In the Mg containing catalysts, the addition of Ir increases the acidity, the dehydrogenating and hydrogenolytic activity. For the isomerization reaction of n-pentane it was found that the addition of Ir improves the stability of the catalysts and formation of isomers of C5 in both series of catalysts (with and without Mg). The conversion of decalin by ring opening depends on the content of Ir for both studied series.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (97 K)Download as PowerPoint slideResearch highlights► SRO using alumina supported Pt–Ir catalysts with and without Mg addition was studied. ► Ir deposition on Pt/Al2O3 catalyst by the catalytic reduction method produces changes in the acid and metal functions. ► The activity of the metal and acid function depend on the contents of Ir and Mg. ► The conversion of decalin depends on the content of Ir for both studied series.

Keywords
Selective ring opening; Decalin; Catalytic reduction method; Pt–Ir/Al2O3
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Selective ring opening of decalin with Pt–Ir/Al2O3 catalyst prepared by catalytic reduction
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 172, Issue 1, 25 August 2011, Pages 177–182
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us