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The suppression of a basic nitrogen compound influence on hydrodesulfurization activity of dibenzothiophene in treated diesel over Al2O3 supported CoMo catalysts by ZrO2 as a secondary support

Paper ID Volume ID Publish Year Pages File Format Full-Text
50489 46796 2015 6 PDF Available
Title
The suppression of a basic nitrogen compound influence on hydrodesulfurization activity of dibenzothiophene in treated diesel over Al2O3 supported CoMo catalysts by ZrO2 as a secondary support
Abstract

•The addition of ZrO2 enhances the HDS activity of CoMo/Al2O3 catalyst.•ZrO2 suppresses the influence of pyridine.•Pyrrole is friendly environment for CoMo/Al2O3 and CoMo/Al2O3–ZrO2 catalysts.

In this study, the effect of ZrO2 as a secondary support on HDS activity of dibenzothiophene in treated diesel over CoMo/Al2O3 catalysts has been investigated. The HDS activity of all prepared catalysts was evaluated at 350 °C and 8 MPa. It was found that CoMo/Al2O3–ZrO2 catalyst with 10 wt.% of ZrO2 exhibited the highest HDS activity. In the presence of pyridine, a basic nitrogen compound, the addition of ZrO2 obviously suppressed the influence of pyridine on the HDS activity of CoMo/Al2O3 based catalyst. These can be explained by the decrease of the total amount of acid sites on CoMo/Al2O3 catalyst when ZrO2 was added.

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Keywords
Hydrodesulfurization; CoMo/Al2O3; CoMo/Al2O3–ZrO2; Dibenzothiophene; Pyridine
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The suppression of a basic nitrogen compound influence on hydrodesulfurization activity of dibenzothiophene in treated diesel over Al2O3 supported CoMo catalysts by ZrO2 as a secondary support
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 62, 5 March 2015, Pages 89–94
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