Preparation and characterization of nano-sized CoMo/Al2O 3 catalyst for hydrodesulfurization

Ki Hyouk Choi, Yozo Korai, Isao Mochida

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

CoMo on Al2O3 catalyst prepared by spray pyrolysis method was found in the form of spheres of 0.5-1.2 μm, which consisted of tiny primary particles of ca. 10-20nm diameter. The materials shows comparable activity to those of commercial catalysts in HDS of straight run gas oil, in particular, refractory 4,6-dimethyldibenzothiophene (4,6-DMDBT). Weaker interactions between CoMo and Al2O3 are suggested by temperature-programmed reduction (TPR), Raman spectroscopy, to give more active species than those over the impregnated catalysts. This accounts for its comparable activity in spite of its smaller surface area.

Original languageEnglish
Pages (from-to)229-236
Number of pages8
JournalApplied Catalysis A: General
Volume260
Issue number2
DOIs
Publication statusPublished - Apr 8 2004

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Hydrodesulfurization
Catalysts
Spray pyrolysis
Gas oils
Refractory materials
Raman spectroscopy
Temperature

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Process Chemistry and Technology

Cite this

Preparation and characterization of nano-sized CoMo/Al2O 3 catalyst for hydrodesulfurization. / Choi, Ki Hyouk; Korai, Yozo; Mochida, Isao.

In: Applied Catalysis A: General, Vol. 260, No. 2, 08.04.2004, p. 229-236.

Research output: Contribution to journalArticle

Choi, Ki Hyouk ; Korai, Yozo ; Mochida, Isao. / Preparation and characterization of nano-sized CoMo/Al2O 3 catalyst for hydrodesulfurization. In: Applied Catalysis A: General. 2004 ; Vol. 260, No. 2. pp. 229-236.
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