A new method for preparing highly active unsupported Mo sulfide. Catalytic activity for hydrogenolysis of 4-(1-naphthylmethyl)bibenzyl

Yoshiharu Yoneyama, Chunshan Song

Research output: Contribution to journalConference article

33 Citations (Scopus)

Abstract

This paper reports on the catalytic activity of unsupported Mo sulfide (MoS2 like) catalysts which were prepared by a new and simple method comprised of decomposing ammonium tetrathiomolybdate (ATTM) in an organic solvent with added water under H2 pressure. Model compound reactions of 4-(1-naphthylmethyl)bibenzyl (NMBB) were carried out at 350-425°C under H2 pressure in order to examine the activity of the Mo sulfide catalysts generated from ATTM with and without added water for C-C bond cleavage and hydrogenation of aromatic ring. The Mo sulfide catalysts generated from ATTM with added water were much more effective for C-C bond cleavage and hydrogenation of aromatic moieties at 350-425°C than those from ATTM alone. Two-step tests revealed that the addition of water is effective for generating highly active Mo sulfide catalyst from ATTM, but water itself does not promote catalytic conversion. Removal of water after the decomposition of ATTM with added water at 350-400°C under H2 pressure by hot purging gives highly active Mo sulfide catalyst. These results demonstrate that we have found a new and simple method for preparing highly active, dispersed (unsupported) Mo sulfide catalysts for hydroprocessing.

Original languageEnglish (US)
Pages (from-to)19-27
Number of pages9
JournalCatalysis Today
Volume50
Issue number1
DOIs
StatePublished - Apr 6 1999
EventProceedings of the 1997 ACS Symposium at the 214th ACS National Meeting - Las Vegas, NV, United States
Duration: Sep 7 1997Sep 11 1997

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Hydrogenolysis
Sulfides
Catalyst activity
Water
Catalysts
Hydrogenation
Purging
Organic solvents
tetrathiomolybdate
Decomposition

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

Cite this

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title = "A new method for preparing highly active unsupported Mo sulfide. Catalytic activity for hydrogenolysis of 4-(1-naphthylmethyl)bibenzyl",
abstract = "This paper reports on the catalytic activity of unsupported Mo sulfide (MoS2 like) catalysts which were prepared by a new and simple method comprised of decomposing ammonium tetrathiomolybdate (ATTM) in an organic solvent with added water under H2 pressure. Model compound reactions of 4-(1-naphthylmethyl)bibenzyl (NMBB) were carried out at 350-425°C under H2 pressure in order to examine the activity of the Mo sulfide catalysts generated from ATTM with and without added water for C-C bond cleavage and hydrogenation of aromatic ring. The Mo sulfide catalysts generated from ATTM with added water were much more effective for C-C bond cleavage and hydrogenation of aromatic moieties at 350-425°C than those from ATTM alone. Two-step tests revealed that the addition of water is effective for generating highly active Mo sulfide catalyst from ATTM, but water itself does not promote catalytic conversion. Removal of water after the decomposition of ATTM with added water at 350-400°C under H2 pressure by hot purging gives highly active Mo sulfide catalyst. These results demonstrate that we have found a new and simple method for preparing highly active, dispersed (unsupported) Mo sulfide catalysts for hydroprocessing.",
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A new method for preparing highly active unsupported Mo sulfide. Catalytic activity for hydrogenolysis of 4-(1-naphthylmethyl)bibenzyl. / Yoneyama, Yoshiharu; Song, Chunshan.

In: Catalysis Today, Vol. 50, No. 1, 06.04.1999, p. 19-27.

Research output: Contribution to journalConference article

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