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Reactive adsorption of sulfur compounds in diesel on nickel supported on mesoporous silica

Paper ID Volume ID Publish Year Pages File Format Full-Text
48377 46504 2008 7 PDF Available
Title
Reactive adsorption of sulfur compounds in diesel on nickel supported on mesoporous silica
Abstract

Sulfur compounds in commercial diesel were selectively removed by reactive adsorption using metallic nickel nanoparticles supported on mesoporous silica. Nanosize nickel particles were supported on mesoporous silica SBA-15 and KIT-6 by impregnation of nickel nitrate and subsequent reduction. X-ray diffraction and transmission electron microscopy study revealed that the maximum nickel concentration achieved was 30 wt% for both the substrates, before particle agglomeration sets. Under these conditions, the best dynamic adsorption capacity observed was 1.7 mg/g at 10 ppmw S breakthrough level with a high sulfur diesel (240 ppmw) on 30 wt% Ni/SBA-15. For a low sulfur diesel (11.7 ppmw), the corresponding result was 0.47 mg/g for the same adsorbent at 0.1 ppmw S breakthrough level, which is suitable for fuel cell applications.

Keywords
Reactive adsorption; Desulfurization; Nickel nanoparticle; Mesoporous silica
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Reactive adsorption of sulfur compounds in diesel on nickel supported on mesoporous silica
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 81, Issues 3–4, 24 June 2008, Pages 244–250
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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