Effect of the hydrogen spillover on the selectivity of dibenzothiophene hydrodesulfurization over CoSx/γ-Al2O3, NiSx/γ-Al2O3 and MoS2/γ-Al2O3 catalysts

N. Escalona; R. García; G. Lagos; C. Navarrete; P. Baeza; F. J. Gil-Llambías

doi:10.1016/j.catcom.2006.05.011

Effect of the hydrogen spillover on the selectivity of dibenzothiophene hydrodesulfurization over CoS_x/γ-Al₂O₃, NiS_x/γ-Al₂O₃ and MoS₂/γ-Al₂O₃ catalysts

N. Escalona, R. García, G. Lagos, C. Navarrete, P. Baeza, F. J. Gil-Llambías

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

26 Scopus citations

Abstract

Dibenzothiophene (DBT) hydrodesulphurization (HDS) reaction at 3 MPa and 325-375 °C on Mo/γ-Al₂O₃ single-bed and Me/γ-Al₂O₃//SiO₂//Mo/γ-Al₂O₃ (Me = Co or Ni) double-bed catalysts were investigated. Results indicate that ratio cyclohexylbenzene (CHB)/biphenyl (BP) or selectivity is higher when using double-beds rather than a single-bed. Synergy in dibenzothiophene hydrodesulphurization on Co//Mo and Ni//Mo double-beds is also detected. Changes in selectivity and conversion are attributed to the action of spillover hydrogen (Hso) formed in the first bed that reaches the second bed.

Original language	English
Pages (from-to)	1053-1056
Number of pages	4
Journal	Catalysis Communications
Volume	7
Issue number	12
DOIs	https://doi.org/10.1016/j.catcom.2006.05.011
State	Published - Dec 2006
Externally published	Yes

Keywords

Dibenzothiophene
Hydrodesulfurization
Selectivity
Spillover hydrogen

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@article{fac020a6cfa14571a000513f2bf564d1,

title = "Effect of the hydrogen spillover on the selectivity of dibenzothiophene hydrodesulfurization over CoSx/γ-Al2O3, NiSx/γ-Al2O3 and MoS2/γ-Al2O3 catalysts",

abstract = "Dibenzothiophene (DBT) hydrodesulphurization (HDS) reaction at 3 MPa and 325-375 °C on Mo/γ-Al2O3 single-bed and Me/γ-Al2O3//SiO2//Mo/γ-Al2O3 (Me = Co or Ni) double-bed catalysts were investigated. Results indicate that ratio cyclohexylbenzene (CHB)/biphenyl (BP) or selectivity is higher when using double-beds rather than a single-bed. Synergy in dibenzothiophene hydrodesulphurization on Co//Mo and Ni//Mo double-beds is also detected. Changes in selectivity and conversion are attributed to the action of spillover hydrogen (Hso) formed in the first bed that reaches the second bed.",

keywords = "Dibenzothiophene, Hydrodesulfurization, Selectivity, Spillover hydrogen",

author = "N. Escalona and R. Garc{\'i}a and G. Lagos and C. Navarrete and P. Baeza and Gil-Llamb{\'i}as, {F. J.}",

note = "Funding Information: Financial supports for the present study were received from DIUC-UDEC Grant No. 205.22.21-1.0, FONDECYT Grant No. 1020046 and CONICYT Grant AT 4040033.",

year = "2006",

month = dec,

doi = "10.1016/j.catcom.2006.05.011",

language = "English",

volume = "7",

pages = "1053--1056",

journal = "Catalysis Communications",

issn = "1566-7367",

publisher = "Elsevier",

number = "12",

}

TY - JOUR

T1 - Effect of the hydrogen spillover on the selectivity of dibenzothiophene hydrodesulfurization over CoSx/γ-Al2O3, NiSx/γ-Al2O3 and MoS2/γ-Al2O3 catalysts

AU - Escalona, N.

AU - García, R.

AU - Lagos, G.

AU - Navarrete, C.

AU - Baeza, P.

AU - Gil-Llambías, F. J.

N1 - Funding Information: Financial supports for the present study were received from DIUC-UDEC Grant No. 205.22.21-1.0, FONDECYT Grant No. 1020046 and CONICYT Grant AT 4040033.

PY - 2006/12

Y1 - 2006/12

N2 - Dibenzothiophene (DBT) hydrodesulphurization (HDS) reaction at 3 MPa and 325-375 °C on Mo/γ-Al2O3 single-bed and Me/γ-Al2O3//SiO2//Mo/γ-Al2O3 (Me = Co or Ni) double-bed catalysts were investigated. Results indicate that ratio cyclohexylbenzene (CHB)/biphenyl (BP) or selectivity is higher when using double-beds rather than a single-bed. Synergy in dibenzothiophene hydrodesulphurization on Co//Mo and Ni//Mo double-beds is also detected. Changes in selectivity and conversion are attributed to the action of spillover hydrogen (Hso) formed in the first bed that reaches the second bed.

AB - Dibenzothiophene (DBT) hydrodesulphurization (HDS) reaction at 3 MPa and 325-375 °C on Mo/γ-Al2O3 single-bed and Me/γ-Al2O3//SiO2//Mo/γ-Al2O3 (Me = Co or Ni) double-bed catalysts were investigated. Results indicate that ratio cyclohexylbenzene (CHB)/biphenyl (BP) or selectivity is higher when using double-beds rather than a single-bed. Synergy in dibenzothiophene hydrodesulphurization on Co//Mo and Ni//Mo double-beds is also detected. Changes in selectivity and conversion are attributed to the action of spillover hydrogen (Hso) formed in the first bed that reaches the second bed.

KW - Dibenzothiophene

KW - Hydrodesulfurization

KW - Selectivity

KW - Spillover hydrogen

UR - http://www.scopus.com/inward/record.url?scp=33750047848&partnerID=8YFLogxK

U2 - 10.1016/j.catcom.2006.05.011

DO - 10.1016/j.catcom.2006.05.011

M3 - Article

AN - SCOPUS:33750047848

SN - 1566-7367

VL - 7

SP - 1053

EP - 1056

JO - Catalysis Communications

JF - Catalysis Communications

IS - 12

ER -

Effect of the hydrogen spillover on the selectivity of dibenzothiophene hydrodesulfurization over CoS_x/γ-Al₂O₃, NiS_x/γ-Al₂O₃ and MoS₂/γ-Al₂O₃ catalysts

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