In Situ EXAFS Studies on Ni2P Hydrodesulfurization Catalysts in the Presence of High Pressure and High Temperature Oil

doi:10.1063/1.2644609

Title: In Situ EXAFS Studies on Ni2P Hydrodesulfurization Catalysts in the Presence of High Pressure and High Temperature Oil

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Abstract

A Ni2P/SiO2 catalyst that is highly active for hydrodesulfurization (HDS) reaction was studied by in situ extended x-ray absorption fine structure (EXAFS) under the real reaction conditions. The measurements were conducted at realistic conditions of high pressure (3 MPa) and high temperature (613 K) in the presence of model oil. We used a low-volume cell with cubic boron nitride windows. The obtained spectra revealed that the bulk Ni2P structure was stable at reaction conditions and that the active surface had Ni-S bonds under reaction conditions, which played an important role for HDS reactions.

Authors:

Kawai, Toshihide; Asakura, Kiyotaka ^[1]; Bando, Kyoko K. ^[2]; Lee, Yong-Kul; Oyama, S. Ted. ^[3]; Chun, Wang-Jae ^[1]

Catalysis Research Center, Hokkaido University, Sapporo 001-0021 (Japan)
National Institute of Advanced Industrial Science and Technology, 16-1, Onogawa, Tsukuba, 305-8569 (Japan)
Department of Chemical Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061 (United States)

Publication Date:: Fri Feb 02 00:00:00 EST 2007

OSTI Identifier:: 21054696

Resource Type:: Journal Article

Resource Relation:: Journal Name: AIP Conference Proceedings; Journal Volume: 882; Journal Issue: 1; Conference: XAFS13: 13. international conference on X-ray absorption fine structure, Stanford, CA (United States), 9-14 Jul 2006; Other Information: DOI: 10.1063/1.2644609; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; ABSORPTION SPECTRA; ABSORPTION SPECTROSCOPY; BORON NITRIDES; CATALYSIS; CATALYSTS; FINE STRUCTURE; INTERFACES; NICKEL PHOSPHIDES; OILS; PRESSURE DEPENDENCE; PRESSURE RANGE MEGA PA 10-100; REFINING; SILICON OXIDES; SURFACES; TEMPERATURE DEPENDENCE; X-RAY SPECTRA; X-RAY SPECTROSCOPY

Citation Formats


                    Kawai, Toshihide, Asakura, Kiyotaka, Bando, Kyoko K., Lee, Yong-Kul, Oyama, S. Ted., and Chun, Wang-Jae. In Situ EXAFS Studies on Ni2P Hydrodesulfurization Catalysts in the Presence of High Pressure and High Temperature Oil.  United States: N. p., 2007. 
        Web.  doi:10.1063/1.2644609.

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                    Kawai, Toshihide, Asakura, Kiyotaka, Bando, Kyoko K., Lee, Yong-Kul, Oyama, S. Ted., & Chun, Wang-Jae. In Situ EXAFS Studies on Ni2P Hydrodesulfurization Catalysts in the Presence of High Pressure and High Temperature Oil.  United States.  doi:10.1063/1.2644609.

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                    Kawai, Toshihide, Asakura, Kiyotaka, Bando, Kyoko K., Lee, Yong-Kul, Oyama, S. Ted., and Chun, Wang-Jae. Fri .  
        "In Situ EXAFS Studies on Ni2P Hydrodesulfurization Catalysts in the Presence of High Pressure and High Temperature Oil".  United States.  
        doi:10.1063/1.2644609.

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@article{osti_21054696,

  title        = {In Situ EXAFS Studies on Ni2P Hydrodesulfurization Catalysts in the Presence of High Pressure and High Temperature Oil},

  author       = {Kawai, Toshihide and Asakura, Kiyotaka and Bando, Kyoko K. and Lee, Yong-Kul and Oyama, S. Ted. and Chun, Wang-Jae},

  abstractNote = {A Ni2P/SiO2 catalyst that is highly active for hydrodesulfurization (HDS) reaction was studied by in situ extended x-ray absorption fine structure (EXAFS) under the real reaction conditions. The measurements were conducted at realistic conditions of high pressure (3 MPa) and high temperature (613 K) in the presence of model oil. We used a low-volume cell with cubic boron nitride windows. The obtained spectra revealed that the bulk Ni2P structure was stable at reaction conditions and that the active surface had Ni-S bonds under reaction conditions, which played an important role for HDS reactions.},

  doi          = {10.1063/1.2644609},

  journal      = {AIP Conference Proceedings},

  number       = 1,

  volume       = 882,

  place        = {United States},

  year         = {Fri Feb 02 00:00:00 EST 2007},

  month        = {Fri Feb 02 00:00:00 EST 2007}

}

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DOI: 10.1063/1.2644609

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