fulltext.study @t Gmail

Conversion of decalin and 1-methylnaphthalene over AlSBA-15 supported Pt catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
55347 47048 2012 9 PDF Available
Title
Conversion of decalin and 1-methylnaphthalene over AlSBA-15 supported Pt catalysts
Abstract

Platinum catalysts (1.5 wt.%) containing AlSBA-15 obtained with various aluminium precursors were tested for activity in 1-methylnaphthalene hydrogenation. Experiments were carried out in a continuous-flow system at atmospheric pressure (240–350 °C, W/F = 0.8 g s/cm3). It was found that 1-methylnaphthalene conversion over Pt-loaded catalysts was not influenced by the aluminium precursor used in the preparation of the Pt/AlSBA-15 catalysts. However, the Pt catalyst prepared with AlSBA-15 obtained from aluminium sulphate provided a higher cis-methyldecalins/trans-methyldecalins ratio in the reaction products as compared to the catalysts obtained with aluminium nitrate or aluminium isopropoxide. Consideration was also given to the influence of platinum amount (0.5, 2.5 and 4.5 wt.%) on the catalytic performance of bifunctional Pt/AlSBA-15 catalysts (AlSBA-15 obtained with aluminium sulphate) in decalin hydroconversion. It was shown that impregnation of AlSBA-15 with H2PtCl6 increased Brønsted acidity. Investigations into decalin conversion were conducted in a continuous-flow system with a fixed-bed reactor (5 MPa, 300–380 °C, H2:CH = 500 N m3/m3; WHSV = 2 h−1). Incorporation of 0.5 wt.% Pt into AlSBA-15 yielded a catalyst with the highest dispersion of the platinum phase and the highest yield of ring opening products, amounting to 26.4 wt.% at 380 °C.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (208 K)Download as PowerPoint slideHighlights► Pt/AlSBA-15 catalysts (1.5 wt.% of Pt) with various aluminium precursors. ► Catalysts for 1-methylnaphthalene hydrogenation. ► Pt/AlSBA-15 catalyst from aluminium sulphate provided a higher cis-methyldecalins/trans-methyldecalins ratio. ► Pt/AlSBA-15 catalysts (0.5, 2.5 and 4.5 wt.% of Pt) for decalin hydroconversion. ► Pt(0.5 wt.%)/AlSBA-15 gave the highest yield of ring opening products, amounting to 26.4 wt.% at 380 °C.

Keywords
Decalin; Ring opening; 1-Methylnaphthalene; Hydrogenation; Platinum catalyst; AlSBA-15
First Page Preview
Conversion of decalin and 1-methylnaphthalene over AlSBA-15 supported Pt catalysts
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
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 196, Issue 1, 30 November 2012, Pages 110–118
Authors
, , , ,
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