X-ray photoelectron spectroscopy study on the surface structure of NiMo catalysts for hydrodesulfurization of 4,6-dimethyldibenzothiophene

Takaaki Isoda, Shinichi Nagao, Xiaoliang Ma, Yozo Korai, Isao Mochida

Research output: Contribution to journalConference article

Abstract

A series of NiMo/Al2O3 catalysts were examined in the desulfurization of 4,6-DMDBT in H2 or H2/H2S varying contents of Ni. In addition, the surface species of Ni and Mo were studied by XPS to find the origin of the catalytic activity or deactivity which are influenced by the atmospheres. In general, the study showed that the deactivation of NiMo catalyst is an attribute of the extensive sulfiding state of Mo and reduction state of Ni species on the catalyst surface.

Original languageEnglish
Pages (from-to)585-589
Number of pages5
JournalAmerican Chemical Society, Division of Petroleum Chemistry, Preprints
Volume40
Issue number4
Publication statusPublished - Aug 1 1995
EventProceedings of the 210th National Meeting of the American Chemical Society - Chicago, IL, USA
Duration: Aug 20 1995Aug 25 1995

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Hydrodesulfurization
Surface structure
X-ray spectroscopy
X ray photoelectron spectroscopy
catalyst
Catalysts
Desulfurization
Catalyst activity
atmosphere

All Science Journal Classification (ASJC) codes

  • Fuel Technology

Cite this

X-ray photoelectron spectroscopy study on the surface structure of NiMo catalysts for hydrodesulfurization of 4,6-dimethyldibenzothiophene. / Isoda, Takaaki; Nagao, Shinichi; Ma, Xiaoliang; Korai, Yozo; Mochida, Isao.

In: American Chemical Society, Division of Petroleum Chemistry, Preprints, Vol. 40, No. 4, 01.08.1995, p. 585-589.

Research output: Contribution to journalConference article

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AU - Mochida, Isao

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N2 - A series of NiMo/Al2O3 catalysts were examined in the desulfurization of 4,6-DMDBT in H2 or H2/H2S varying contents of Ni. In addition, the surface species of Ni and Mo were studied by XPS to find the origin of the catalytic activity or deactivity which are influenced by the atmospheres. In general, the study showed that the deactivation of NiMo catalyst is an attribute of the extensive sulfiding state of Mo and reduction state of Ni species on the catalyst surface.

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