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Effect of pore diameter of Ni–Mo/Al-SBA-15 catalysts on the hydrotreating of heavy gas oil

Paper ID Volume ID Publish Year Pages File Format Full-Text
41377 45887 2011 9 PDF Available
Title
Effect of pore diameter of Ni–Mo/Al-SBA-15 catalysts on the hydrotreating of heavy gas oil
Abstract

SBA-15 with pore diameter greater than 10 nm was synthesized by varying the synthesis parameters and adding swelling agent hexane and inorganic salt ammonium fluoride. Direct and post synthesis modification methods were employed to incorporate aluminum in the framework of SBA-15. In the direct synthesis approach, the highest pore diameter achieved was limited to 7 nm, but post synthesis method was employed successfully to achieve high pore diameter catalysts. The pore structure of the synthesized SBA-15 did not collapse until 13 nm of pore diameter as confirmed from the small angle XRD and TEM. The prepared Ni–Mo catalysts with different pore diameters were screened for hydrotreating of heavy gas oil (HGO) in a trickle bed continuous reactor. The catalyst with 13 nm pore diameter gave highest conversion compared to other catalysts.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (112 K)Download as PowerPoint slideHighlights► High pore diameter (>10 nm) Ni–Mo/Al-SBA-15 catalysts were synthesized. ► The pore structure of SBA-15 collapsed above 13 nm pore diameter. ► The activity of HDS and HDN increased with increase in pore diameter till 13 nm. ► Effect of pore diameter on catalytic activity is more on HDN than on HDS.

Keywords
Hydrotreating; TEM; NiMo/Al-SBA-15; Mesoporous materials; Hydrodesulfurization; Hydrodenitrogenation
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Effect of pore diameter of Ni–Mo/Al-SBA-15 catalysts on the hydrotreating of heavy gas oil
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 404, Issues 1–2, 19 September 2011, Pages 21–29
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