The effect of phosphate on the hydrodenitrogenation activity and selectivity of alumina-supported sulfide Mo, Ni, and Ni-Mo catalysts

S. Eijsbouts; L.M.P. van Gruijthuijsen; J. Volmer; V.H.J. Beer, de; R. Prins

doi:10.1016/S0167-2991(08)60490-5

The effect of phosphate on the hydrodenitrogenation activity and selectivity of alumina-supported sulfide Mo, Ni, and Ni-Mo catalysts

S. Eijsbouts, L.M.P. van Gruijthuijsen, J. Volmer, V.H.J. Beer, de, R. Prins

Inorganic Materials & Catalysis

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

6 Citations (Scopus)

Abstract

Al2O3–supported Mo, Ni and Ni–Mo catalysts were prepared via pore volume impregnation of the support with aqueous solutions of H3PO4, (NH4)6Mo7O24 and Ni(NO3)2. The catalysts were sulfided in situ and tested in the hydrodenitrogenation (HDN) of quinoline (643 K, 3.0 MPa) and the hydrodesulfurisation (HDS) of thiophene (673 K, 0.1 MPa) and were further characterized by X–ray photoelectron spectroscopy (XPS). The Ni/Al2O3 and Mo/Al2O3 catalysts had very low quinoline conversions to hydrocarbons which changed somewhat in the presence of phosphate. For the Ni–Mo catalysts the addition of phosphate resulted in an increased quinoline conversion to hydrocarbons and an increased selectivity for unsaturated N–free hydrocarbons. The effect of phosphate on the HDN activity and selectivity did not correlate with its effect on the dispersion of Ni or Mo as determined by XPS. Moreover the HDS activity was not influenced by the presence of phosphate. This indicates that the addition of phosphate does not lead to an increase in the formation of the active "Ni–Mo–S" metal sulfide sites but rather to the formation of a new type of HDN site which is associated with phosphate.

Original language	English
Title of host publication	Proceedings of the Annual International AlChE Meeting: Hydrotreating Catalysts - Preparation, Characterization and Performance, 27 November - 2 December 1988, Washington, USA
Editors	L. Occelli, R.G. Anthony
Place of Publication	Amsterdam
Publisher	Elsevier
Pages	79-90
ISBN (Print)	0-444-88032-1
DOIs	https://doi.org/10.1016/S0167-2991(08)60490-5 https://doi.org/10.1016/0169-4332(91)90142-7
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	United States
City	Washington
Period	27/11/88 → 2/12/88

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Eijsbouts, S., van Gruijthuijsen, L. M. P., Volmer, J., Beer, de, V. H. J., & Prins, R. (1989). The effect of phosphate on the hydrodenitrogenation activity and selectivity of alumina-supported sulfide Mo, Ni, and Ni-Mo catalysts. In L. Occelli, & R. G. Anthony (Eds.), Proceedings of the Annual International AlChE Meeting: Hydrotreating Catalysts - Preparation, Characterization and Performance, 27 November - 2 December 1988, Washington, USA (pp. 79-90). (Studies in Surface Science and Catalysis; Vol. 50). Amsterdam: Elsevier. https://doi.org/10.1016/S0167-2991(08)60490-5, https://doi.org/10.1016/0169-4332(91)90142-7

Eijsbouts, S. ; van Gruijthuijsen, L.M.P. ; Volmer, J. ; Beer, de, V.H.J. ; Prins, R. / The effect of phosphate on the hydrodenitrogenation activity and selectivity of alumina-supported sulfide Mo, Ni, and Ni-Mo catalysts. Proceedings of the Annual International AlChE Meeting: Hydrotreating Catalysts - Preparation, Characterization and Performance, 27 November - 2 December 1988, Washington, USA. editor / L. Occelli ; R.G. Anthony. Amsterdam : Elsevier, 1989. pp. 79-90 (Studies in Surface Science and Catalysis).

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title = "The effect of phosphate on the hydrodenitrogenation activity and selectivity of alumina-supported sulfide Mo, Ni, and Ni-Mo catalysts",

abstract = "Al2O3–supported Mo, Ni and Ni–Mo catalysts were prepared via pore volume impregnation of the support with aqueous solutions of H3PO4, (NH4)6Mo7O24 and Ni(NO3)2. The catalysts were sulfided in situ and tested in the hydrodenitrogenation (HDN) of quinoline (643 K, 3.0 MPa) and the hydrodesulfurisation (HDS) of thiophene (673 K, 0.1 MPa) and were further characterized by X–ray photoelectron spectroscopy (XPS). The Ni/Al2O3 and Mo/Al2O3 catalysts had very low quinoline conversions to hydrocarbons which changed somewhat in the presence of phosphate. For the Ni–Mo catalysts the addition of phosphate resulted in an increased quinoline conversion to hydrocarbons and an increased selectivity for unsaturated N–free hydrocarbons. The effect of phosphate on the HDN activity and selectivity did not correlate with its effect on the dispersion of Ni or Mo as determined by XPS. Moreover the HDS activity was not influenced by the presence of phosphate. This indicates that the addition of phosphate does not lead to an increase in the formation of the active {"}Ni–Mo–S{"} metal sulfide sites but rather to the formation of a new type of HDN site which is associated with phosphate.",

author = "S. Eijsbouts and {van Gruijthuijsen}, L.M.P. and J. Volmer and {Beer, de}, V.H.J. and R. Prins",

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language = "English",

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Eijsbouts, S, van Gruijthuijsen, LMP, Volmer, J, Beer, de, VHJ & Prins, R 1989, The effect of phosphate on the hydrodenitrogenation activity and selectivity of alumina-supported sulfide Mo, Ni, and Ni-Mo catalysts. in L Occelli & RG Anthony (eds), Proceedings of the Annual International AlChE Meeting: Hydrotreating Catalysts - Preparation, Characterization and Performance, 27 November - 2 December 1988, Washington, USA. Studies in Surface Science and Catalysis, vol. 50, Elsevier, Amsterdam, pp. 79-90, 1988 AIChE Annual Meeting, Washington, United States, 27/11/88. https://doi.org/10.1016/S0167-2991(08)60490-5, https://doi.org/10.1016/0169-4332(91)90142-7

The effect of phosphate on the hydrodenitrogenation activity and selectivity of alumina-supported sulfide Mo, Ni, and Ni-Mo catalysts. / Eijsbouts, S.; van Gruijthuijsen, L.M.P.; Volmer, J.; Beer, de, V.H.J.; Prins, R.

Proceedings of the Annual International AlChE Meeting: Hydrotreating Catalysts - Preparation, Characterization and Performance, 27 November - 2 December 1988, Washington, USA. ed. / L. Occelli; R.G. Anthony. Amsterdam : Elsevier, 1989. p. 79-90 (Studies in Surface Science and Catalysis; Vol. 50).

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

TY - GEN

T1 - The effect of phosphate on the hydrodenitrogenation activity and selectivity of alumina-supported sulfide Mo, Ni, and Ni-Mo catalysts

AU - Eijsbouts, S.

AU - van Gruijthuijsen, L.M.P.

AU - Volmer, J.

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

AU - Prins, R.

PY - 1989

Y1 - 1989

N2 - Al2O3–supported Mo, Ni and Ni–Mo catalysts were prepared via pore volume impregnation of the support with aqueous solutions of H3PO4, (NH4)6Mo7O24 and Ni(NO3)2. The catalysts were sulfided in situ and tested in the hydrodenitrogenation (HDN) of quinoline (643 K, 3.0 MPa) and the hydrodesulfurisation (HDS) of thiophene (673 K, 0.1 MPa) and were further characterized by X–ray photoelectron spectroscopy (XPS). The Ni/Al2O3 and Mo/Al2O3 catalysts had very low quinoline conversions to hydrocarbons which changed somewhat in the presence of phosphate. For the Ni–Mo catalysts the addition of phosphate resulted in an increased quinoline conversion to hydrocarbons and an increased selectivity for unsaturated N–free hydrocarbons. The effect of phosphate on the HDN activity and selectivity did not correlate with its effect on the dispersion of Ni or Mo as determined by XPS. Moreover the HDS activity was not influenced by the presence of phosphate. This indicates that the addition of phosphate does not lead to an increase in the formation of the active "Ni–Mo–S" metal sulfide sites but rather to the formation of a new type of HDN site which is associated with phosphate.

AB - Al2O3–supported Mo, Ni and Ni–Mo catalysts were prepared via pore volume impregnation of the support with aqueous solutions of H3PO4, (NH4)6Mo7O24 and Ni(NO3)2. The catalysts were sulfided in situ and tested in the hydrodenitrogenation (HDN) of quinoline (643 K, 3.0 MPa) and the hydrodesulfurisation (HDS) of thiophene (673 K, 0.1 MPa) and were further characterized by X–ray photoelectron spectroscopy (XPS). The Ni/Al2O3 and Mo/Al2O3 catalysts had very low quinoline conversions to hydrocarbons which changed somewhat in the presence of phosphate. For the Ni–Mo catalysts the addition of phosphate resulted in an increased quinoline conversion to hydrocarbons and an increased selectivity for unsaturated N–free hydrocarbons. The effect of phosphate on the HDN activity and selectivity did not correlate with its effect on the dispersion of Ni or Mo as determined by XPS. Moreover the HDS activity was not influenced by the presence of phosphate. This indicates that the addition of phosphate does not lead to an increase in the formation of the active "Ni–Mo–S" metal sulfide sites but rather to the formation of a new type of HDN site which is associated with phosphate.

U2 - 10.1016/S0167-2991(08)60490-5

DO - 10.1016/S0167-2991(08)60490-5

M3 - Conference contribution

SN - 0-444-88032-1

T3 - Studies in Surface Science and Catalysis

SP - 79

EP - 90

BT - Proceedings of the Annual International AlChE Meeting: Hydrotreating Catalysts - Preparation, Characterization and Performance, 27 November - 2 December 1988, Washington, USA

A2 - Occelli, L.

A2 - Anthony, R.G.

PB - Elsevier

CY - Amsterdam

ER -

Eijsbouts S, van Gruijthuijsen LMP, Volmer J, Beer, de VHJ, Prins R. The effect of phosphate on the hydrodenitrogenation activity and selectivity of alumina-supported sulfide Mo, Ni, and Ni-Mo catalysts. In Occelli L, Anthony RG, editors, Proceedings of the Annual International AlChE Meeting: Hydrotreating Catalysts - Preparation, Characterization and Performance, 27 November - 2 December 1988, Washington, USA. Amsterdam: Elsevier. 1989. p. 79-90. (Studies in Surface Science and Catalysis). https://doi.org/10.1016/S0167-2991(08)60490-5, https://doi.org/10.1016/0169-4332(91)90142-7

The effect of phosphate on the hydrodenitrogenation activity and selectivity of alumina-supported sulfide Mo, Ni, and Ni-Mo catalysts

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