Synergism in alumina-supported noble metals and molybdenum stacked-bed catalysts via spillover hydrogen in gas-oil hydrodesulphurization

M. Villarroel; A. Méndez; G. Águila; N. Escalona; P. Baeza; F. Gil-Llambías

doi:10.1016/j.cattod.2010.01.008

Synergism in alumina-supported noble metals and molybdenum stacked-bed catalysts via spillover hydrogen in gas-oil hydrodesulphurization

M. Villarroel, A. Méndez, G. Águila, N. Escalona, P. Baeza, F. Gil-Llambías

INSTITUTE OF CHEMISTRY

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17 Scopus citations

Abstract

A study is made of Ru/γ-Al₂O₃//Mo/γ- Al₂O₃, Rh/γ-Al₂O₃//Mo/γ- Al₂O₃, Pd/γ-Al₂O₃//Mo/γ- Al₂O₃, and Pt/γ-Al₂O₃//Mo/ γ-Al₂O₃ stacked beds, separated by SiO₂, in the gas-oil hydrodesulphurization reaction. Synergism between these beds is clearly detected. This synergism occurs in the absence of mixed phases. The results show that the presence of hydrogen spillover must be considered to explain the promotion effects in all HDS the reactors in which sulphides of Ru, Rh, Pd or Pt, and Mo are present.

Original language	English
Pages (from-to)	65-68
Number of pages	4
Journal	Catalysis Today
Volume	156
Issue number	1-2
DOIs	https://doi.org/10.1016/j.cattod.2010.01.008
State	Published - 25 Oct 2010

Keywords

Gas-oil hydrotreating
Hydrodesulphurization
Noble metal
Spillover hydrogen
Stacked bed

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10.1016/j.cattod.2010.01.008

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title = "Synergism in alumina-supported noble metals and molybdenum stacked-bed catalysts via spillover hydrogen in gas-oil hydrodesulphurization",

abstract = "A study is made of Ru/γ-Al2O3//Mo/γ- Al2O3, Rh/γ-Al2O3//Mo/γ- Al2O3, Pd/γ-Al2O3//Mo/γ- Al2O3, and Pt/γ-Al2O3//Mo/ γ-Al2O3 stacked beds, separated by SiO2, in the gas-oil hydrodesulphurization reaction. Synergism between these beds is clearly detected. This synergism occurs in the absence of mixed phases. The results show that the presence of hydrogen spillover must be considered to explain the promotion effects in all HDS the reactors in which sulphides of Ru, Rh, Pd or Pt, and Mo are present.",

keywords = "Gas-oil hydrotreating, Hydrodesulphurization, Noble metal, Spillover hydrogen, Stacked bed",

author = "M. Villarroel and A. M{\'e}ndez and G. {\'A}guila and N. Escalona and P. Baeza and F. Gil-Llamb{\'i}as",

note = "Funding Information: The authors acknowledge the support of FONDECYT under project 1095120, CONICYT under project AT 24080088, UCV under project 125.746/2009, and DICYT USACH .",

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doi = "10.1016/j.cattod.2010.01.008",

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AU - Villarroel, M.

AU - Méndez, A.

AU - Águila, G.

AU - Escalona, N.

AU - Baeza, P.

AU - Gil-Llambías, F.

N1 - Funding Information: The authors acknowledge the support of FONDECYT under project 1095120, CONICYT under project AT 24080088, UCV under project 125.746/2009, and DICYT USACH .

PY - 2010/10/25

Y1 - 2010/10/25

N2 - A study is made of Ru/γ-Al2O3//Mo/γ- Al2O3, Rh/γ-Al2O3//Mo/γ- Al2O3, Pd/γ-Al2O3//Mo/γ- Al2O3, and Pt/γ-Al2O3//Mo/ γ-Al2O3 stacked beds, separated by SiO2, in the gas-oil hydrodesulphurization reaction. Synergism between these beds is clearly detected. This synergism occurs in the absence of mixed phases. The results show that the presence of hydrogen spillover must be considered to explain the promotion effects in all HDS the reactors in which sulphides of Ru, Rh, Pd or Pt, and Mo are present.

AB - A study is made of Ru/γ-Al2O3//Mo/γ- Al2O3, Rh/γ-Al2O3//Mo/γ- Al2O3, Pd/γ-Al2O3//Mo/γ- Al2O3, and Pt/γ-Al2O3//Mo/ γ-Al2O3 stacked beds, separated by SiO2, in the gas-oil hydrodesulphurization reaction. Synergism between these beds is clearly detected. This synergism occurs in the absence of mixed phases. The results show that the presence of hydrogen spillover must be considered to explain the promotion effects in all HDS the reactors in which sulphides of Ru, Rh, Pd or Pt, and Mo are present.

KW - Gas-oil hydrotreating

KW - Hydrodesulphurization

KW - Noble metal

KW - Spillover hydrogen

KW - Stacked bed

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DO - 10.1016/j.cattod.2010.01.008

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JO - Catalysis Today

JF - Catalysis Today

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ER -

Synergism in alumina-supported noble metals and molybdenum stacked-bed catalysts via spillover hydrogen in gas-oil hydrodesulphurization

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Keywords

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