Mössbauer study of the sulfidation of hydrodesulfurization catalysts: so Called 'Co-Mo-S' phase observed in carbon-supported Co and Co-Mo Sulfide catalysts

M.W.J. Crajé; E. Gerkema; V.H.J. Beer, de; A.M. Kraan, van der

doi:10.1016/S0167-2991(08)60497-8

Mössbauer study of the sulfidation of hydrodesulfurization catalysts: so Called 'Co-Mo-S' phase observed in carbon-supported Co and Co-Mo Sulfide catalysts

M.W.J. Crajé, E. Gerkema, V.H.J. Beer, de, A.M. Kraan, van der

Inorganic Materials & Catalysis

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic

8 Citations (Scopus)

Abstract

In-situ Mössbauer Emission Spectroscopy (MES) has been used to study the type of phases present in sulfided activated carbon-supported Co and Co-Mo hydrodesulfurization (HDS) catalysts. Most of the reported MES studies are performed on Co-Mo/Al2O3 catalysts. Co species in the so-called "Co-Mo-S" phase, so far only observed in sulfided catalysts containing Co and Mo, should govern the HDS activity. The present observations show that the same Co species in sulfided Co/C and Co-Mo/C catalysts, with the same quadrupole splitting (QS) as "Co-Mo-S" can be formed. Similar results are obtained for sulfided Fe/C and Fe-Mo/C catalysts. Furthermore, it turns out that the QS-value of the "active phase" in the sulfided Co/C and Co-Mo/C catalysts depends on the sulfiding temperature and Co content. Hence, it seems unlikely that there will be only one well defined active sulfide phase which governs the HDS activity.

Original language	English
Title of host publication	Hydrotreating Catalysts - Preparation, Characterization and Performance, Proceedings of the Annual International AlChE Meeting, Washington, DC
Editors	L. Occelli, R.G. Anthony
Place of Publication	Amsterdam
Publisher	Elsevier
Pages	165-179
ISBN (Print)	0-444-88032-1
DOIs	https://doi.org/10.1016/S0167-2991(08)60497-8
Publication status	Published - 1989
Event	1988 AIChE Annual Meeting - Washington, United States Duration: 27 Nov 1988 → 2 Dec 1988

Publication series

Name	Studies in Surface Science and Catalysis
Volume	50
ISSN (Print)	0167-2991

Conference

Conference	1988 AIChE Annual Meeting
Country/Territory	United States
City	Washington
Period	27/11/88 → 2/12/88

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10.1016/S0167-2991(08)60497-8

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Crajé, M. W. J., Gerkema, E., Beer, de, V. H. J., & Kraan, van der, A. M. (1989). Mössbauer study of the sulfidation of hydrodesulfurization catalysts: so Called 'Co-Mo-S' phase observed in carbon-supported Co and Co-Mo Sulfide catalysts. In L. Occelli, & R. G. Anthony (Eds.), Hydrotreating Catalysts - Preparation, Characterization and Performance, Proceedings of the Annual International AlChE Meeting, Washington, DC (pp. 165-179). (Studies in Surface Science and Catalysis; Vol. 50). Elsevier. https://doi.org/10.1016/S0167-2991(08)60497-8

Crajé, M.W.J. ; Gerkema, E. ; Beer, de, V.H.J. et al. / Mössbauer study of the sulfidation of hydrodesulfurization catalysts: so Called 'Co-Mo-S' phase observed in carbon-supported Co and Co-Mo Sulfide catalysts. Hydrotreating Catalysts - Preparation, Characterization and Performance, Proceedings of the Annual International AlChE Meeting, Washington, DC. editor / L. Occelli ; R.G. Anthony. Amsterdam : Elsevier, 1989. pp. 165-179 (Studies in Surface Science and Catalysis).

@inproceedings{fdea55c298e34ba19f823bedd2d2150d,

title = "M{\"o}ssbauer study of the sulfidation of hydrodesulfurization catalysts: so Called 'Co-Mo-S' phase observed in carbon-supported Co and Co-Mo Sulfide catalysts",

abstract = "In-situ M{\"o}ssbauer Emission Spectroscopy (MES) has been used to study the type of phases present in sulfided activated carbon-supported Co and Co-Mo hydrodesulfurization (HDS) catalysts. Most of the reported MES studies are performed on Co-Mo/Al2O3 catalysts. Co species in the so-called {"}Co-Mo-S{"} phase, so far only observed in sulfided catalysts containing Co and Mo, should govern the HDS activity. The present observations show that the same Co species in sulfided Co/C and Co-Mo/C catalysts, with the same quadrupole splitting (QS) as {"}Co-Mo-S{"} can be formed. Similar results are obtained for sulfided Fe/C and Fe-Mo/C catalysts. Furthermore, it turns out that the QS-value of the {"}active phase{"} in the sulfided Co/C and Co-Mo/C catalysts depends on the sulfiding temperature and Co content. Hence, it seems unlikely that there will be only one well defined active sulfide phase which governs the HDS activity.",

author = "M.W.J. Craj{\'e} and E. Gerkema and {Beer, de}, V.H.J. and {Kraan, van der}, A.M.",

year = "1989",

doi = "10.1016/S0167-2991(08)60497-8",

language = "English",

isbn = "0-444-88032-1",

series = "Studies in Surface Science and Catalysis",

publisher = "Elsevier",

pages = "165--179",

editor = "L. Occelli and R.G. Anthony",

booktitle = "Hydrotreating Catalysts - Preparation, Characterization and Performance, Proceedings of the Annual International AlChE Meeting, Washington, DC",

address = "Netherlands",

note = "1988 AIChE Annual Meeting ; Conference date: 27-11-1988 Through 02-12-1988",

}

Crajé, MWJ, Gerkema, E, Beer, de, VHJ & Kraan, van der, AM 1989, Mössbauer study of the sulfidation of hydrodesulfurization catalysts: so Called 'Co-Mo-S' phase observed in carbon-supported Co and Co-Mo Sulfide catalysts. in L Occelli & RG Anthony (eds), Hydrotreating Catalysts - Preparation, Characterization and Performance, Proceedings of the Annual International AlChE Meeting, Washington, DC. Studies in Surface Science and Catalysis, vol. 50, Elsevier, Amsterdam, pp. 165-179, 1988 AIChE Annual Meeting, Washington, District of Columbia, United States, 27/11/88. https://doi.org/10.1016/S0167-2991(08)60497-8

Mössbauer study of the sulfidation of hydrodesulfurization catalysts: so Called 'Co-Mo-S' phase observed in carbon-supported Co and Co-Mo Sulfide catalysts. / Crajé, M.W.J.; Gerkema, E.; Beer, de, V.H.J. et al.
Hydrotreating Catalysts - Preparation, Characterization and Performance, Proceedings of the Annual International AlChE Meeting, Washington, DC. ed. / L. Occelli; R.G. Anthony. Amsterdam: Elsevier, 1989. p. 165-179 (Studies in Surface Science and Catalysis; Vol. 50).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic

TY - GEN

T1 - Mössbauer study of the sulfidation of hydrodesulfurization catalysts: so Called 'Co-Mo-S' phase observed in carbon-supported Co and Co-Mo Sulfide catalysts

AU - Crajé, M.W.J.

AU - Gerkema, E.

AU - Beer, de, V.H.J.

AU - Kraan, van der, A.M.

PY - 1989

Y1 - 1989

N2 - In-situ Mössbauer Emission Spectroscopy (MES) has been used to study the type of phases present in sulfided activated carbon-supported Co and Co-Mo hydrodesulfurization (HDS) catalysts. Most of the reported MES studies are performed on Co-Mo/Al2O3 catalysts. Co species in the so-called "Co-Mo-S" phase, so far only observed in sulfided catalysts containing Co and Mo, should govern the HDS activity. The present observations show that the same Co species in sulfided Co/C and Co-Mo/C catalysts, with the same quadrupole splitting (QS) as "Co-Mo-S" can be formed. Similar results are obtained for sulfided Fe/C and Fe-Mo/C catalysts. Furthermore, it turns out that the QS-value of the "active phase" in the sulfided Co/C and Co-Mo/C catalysts depends on the sulfiding temperature and Co content. Hence, it seems unlikely that there will be only one well defined active sulfide phase which governs the HDS activity.

AB - In-situ Mössbauer Emission Spectroscopy (MES) has been used to study the type of phases present in sulfided activated carbon-supported Co and Co-Mo hydrodesulfurization (HDS) catalysts. Most of the reported MES studies are performed on Co-Mo/Al2O3 catalysts. Co species in the so-called "Co-Mo-S" phase, so far only observed in sulfided catalysts containing Co and Mo, should govern the HDS activity. The present observations show that the same Co species in sulfided Co/C and Co-Mo/C catalysts, with the same quadrupole splitting (QS) as "Co-Mo-S" can be formed. Similar results are obtained for sulfided Fe/C and Fe-Mo/C catalysts. Furthermore, it turns out that the QS-value of the "active phase" in the sulfided Co/C and Co-Mo/C catalysts depends on the sulfiding temperature and Co content. Hence, it seems unlikely that there will be only one well defined active sulfide phase which governs the HDS activity.

U2 - 10.1016/S0167-2991(08)60497-8

DO - 10.1016/S0167-2991(08)60497-8

M3 - Conference contribution

SN - 0-444-88032-1

T3 - Studies in Surface Science and Catalysis

SP - 165

EP - 179

BT - Hydrotreating Catalysts - Preparation, Characterization and Performance, Proceedings of the Annual International AlChE Meeting, Washington, DC

A2 - Occelli, L.

A2 - Anthony, R.G.

PB - Elsevier

CY - Amsterdam

T2 - 1988 AIChE Annual Meeting

Y2 - 27 November 1988 through 2 December 1988

ER -

Crajé MWJ, Gerkema E, Beer, de VHJ, Kraan, van der AM. Mössbauer study of the sulfidation of hydrodesulfurization catalysts: so Called 'Co-Mo-S' phase observed in carbon-supported Co and Co-Mo Sulfide catalysts. In Occelli L, Anthony RG, editors, Hydrotreating Catalysts - Preparation, Characterization and Performance, Proceedings of the Annual International AlChE Meeting, Washington, DC. Amsterdam: Elsevier. 1989. p. 165-179. (Studies in Surface Science and Catalysis). doi: 10.1016/S0167-2991(08)60497-8

Mössbauer study of the sulfidation of hydrodesulfurization catalysts: so Called 'Co-Mo-S' phase observed in carbon-supported Co and Co-Mo Sulfide catalysts

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