MD//Mo and MD//W [MD = Mn, Fe, Co, Ni, Cu and Zn] promotion via spillover hydrogen in hydrodesulfurization

M. Villarroel; P. Baeza; N. Escalona; J. Ojeda; B. Delmon; F. J. Gil-Llambías

doi:10.1016/j.apcata.2008.04.033

M_D//Mo and M_D//W [M_D = Mn, Fe, Co, Ni, Cu and Zn] promotion via spillover hydrogen in hydrodesulfurization

M. Villarroel, P. Baeza, N. Escalona, J. Ojeda, B. Delmon, F. J. Gil-Llambías

Research output: Contribution to journal › Article › peer-review

46 Scopus citations

Abstract

The promotion effect of Mn, Fe, Co, Ni, Cu and Zn sulfides on the hydrodesulfurization (HDS) activity of Mo and W sulfides, under experimental conditions like industrial ones, using staked beds, was studied. Synergism between staked beds in all the studied pairs, with a magnitude that leads a volcano curve with a maximum in Co and Ni sulfides was detected. Promotion was well explained by the formation of spillover hydrogen (Hso) in the first bed (in which Mn, Fe, Co, Ni, Cu or Zn sulfides supported on γ-Al₂O₃ were located) that migrate to the second bed (in which Mo or W sulfides supported on γ-Al₂O₃ were located), 5 mm below.

Original language	English
Pages (from-to)	152-157
Number of pages	6
Journal	Applied Catalysis A: General
Volume	345
Issue number	2
DOIs	https://doi.org/10.1016/j.apcata.2008.04.033
State	Published - 1 Aug 2008
Externally published	Yes

Keywords

Hydrotreating
Promotion effect
Spillover hydrogen
Volcano curves

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10.1016/j.apcata.2008.04.033

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@article{a17609315a4543df81dfaf551923a383,

title = "MD//Mo and MD//W [MD = Mn, Fe, Co, Ni, Cu and Zn] promotion via spillover hydrogen in hydrodesulfurization",

abstract = "The promotion effect of Mn, Fe, Co, Ni, Cu and Zn sulfides on the hydrodesulfurization (HDS) activity of Mo and W sulfides, under experimental conditions like industrial ones, using staked beds, was studied. Synergism between staked beds in all the studied pairs, with a magnitude that leads a volcano curve with a maximum in Co and Ni sulfides was detected. Promotion was well explained by the formation of spillover hydrogen (Hso) in the first bed (in which Mn, Fe, Co, Ni, Cu or Zn sulfides supported on γ-Al2O3 were located) that migrate to the second bed (in which Mo or W sulfides supported on γ-Al2O3 were located), 5 mm below.",

keywords = "Hydrotreating, Promotion effect, Spillover hydrogen, Volcano curves",

author = "M. Villarroel and P. Baeza and N. Escalona and J. Ojeda and B. Delmon and Gil-Llamb{\'i}as, {F. J.}",

note = "Funding Information: We gratefully acknowledge financial support by FONDECYT (Chile), grants 1060029, FONDAP Project 11980002. MV thanks CONICYT-Chile for her doctoral fellows.",

year = "2008",

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doi = "10.1016/j.apcata.2008.04.033",

language = "English",

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journal = "Applied Catalysis A: General",

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T1 - MD//Mo and MD//W [MD = Mn, Fe, Co, Ni, Cu and Zn] promotion via spillover hydrogen in hydrodesulfurization

AU - Villarroel, M.

AU - Baeza, P.

AU - Escalona, N.

AU - Ojeda, J.

AU - Delmon, B.

AU - Gil-Llambías, F. J.

N1 - Funding Information: We gratefully acknowledge financial support by FONDECYT (Chile), grants 1060029, FONDAP Project 11980002. MV thanks CONICYT-Chile for her doctoral fellows.

PY - 2008/8/1

Y1 - 2008/8/1

N2 - The promotion effect of Mn, Fe, Co, Ni, Cu and Zn sulfides on the hydrodesulfurization (HDS) activity of Mo and W sulfides, under experimental conditions like industrial ones, using staked beds, was studied. Synergism between staked beds in all the studied pairs, with a magnitude that leads a volcano curve with a maximum in Co and Ni sulfides was detected. Promotion was well explained by the formation of spillover hydrogen (Hso) in the first bed (in which Mn, Fe, Co, Ni, Cu or Zn sulfides supported on γ-Al2O3 were located) that migrate to the second bed (in which Mo or W sulfides supported on γ-Al2O3 were located), 5 mm below.

AB - The promotion effect of Mn, Fe, Co, Ni, Cu and Zn sulfides on the hydrodesulfurization (HDS) activity of Mo and W sulfides, under experimental conditions like industrial ones, using staked beds, was studied. Synergism between staked beds in all the studied pairs, with a magnitude that leads a volcano curve with a maximum in Co and Ni sulfides was detected. Promotion was well explained by the formation of spillover hydrogen (Hso) in the first bed (in which Mn, Fe, Co, Ni, Cu or Zn sulfides supported on γ-Al2O3 were located) that migrate to the second bed (in which Mo or W sulfides supported on γ-Al2O3 were located), 5 mm below.

KW - Hydrotreating

KW - Promotion effect

KW - Spillover hydrogen

KW - Volcano curves

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U2 - 10.1016/j.apcata.2008.04.033

DO - 10.1016/j.apcata.2008.04.033

M3 - Article

AN - SCOPUS:46349100082

SN - 0926-860X

VL - 345

SP - 152

EP - 157

JO - Applied Catalysis A: General

JF - Applied Catalysis A: General

IS - 2

ER -

M_D//Mo and M_D//W [M_D = Mn, Fe, Co, Ni, Cu and Zn] promotion via spillover hydrogen in hydrodesulfurization

Abstract

Keywords

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