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Catalytic performance of P-modified MoO3/SiO2 in oxidative desulfurization by cumene hydroperoxide

Paper ID Volume ID Publish Year Pages File Format Full-Text
49778 46766 2013 4 PDF Available
Title
Catalytic performance of P-modified MoO3/SiO2 in oxidative desulfurization by cumene hydroperoxide
Abstract

•P-modified MoO3/SiO2 showed enhanced catalytic performance in the oxidation of DBT.•The addition of P suppressed the leaching of Mo species.•The active phase owned a Mo-O-P connectivity similar to that in H3PMo12O40.

Phosphorous-modified MoO3/SiO2 catalysts with various P/Mo molar ratios (MoPxO/SiO2, x = 0.3 − 3.0) were prepared by co-impregnation and compared with MoO3/SiO2 in the oxidation of dibenzothiophene by cumene hydroperoxide. The addition of P significantly enhanced the catalytic performance, and MoP1.0O/SiO2 exhibited the highest oxidation activity. XRD characterization indicated that the active phase of MoP1.0O/SiO2 was amorphous, whereas 31P-NMR measurements revealed that MoP1.0O/SiO2 had a similar connectivity of Mo-O-P to H3PMo12O40. The total sulfur of a hydrotreated diesel was reduced from 298 to 5 ppmw by oxidation with CHP and subsequent dimethylformamide extraction.

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Keywords
Oxidative desulfurization; Supported Mo-P oxides; Dibenzothiophene; Diesel
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Catalytic performance of P-modified MoO3/SiO2 in oxidative desulfurization by cumene hydroperoxide
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 42, 5 December 2013, Pages 6–9
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