Catalytic desulfurization of organic sulfur compounds over zeolite catalysts

Conference · Sat Mar 01 04:00:00 EST 1980 · Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States)

OSTI ID:5290876

Sugioka, M; Aomura, K

Various kinds of zeolites, such as Na-zeolites, MeY and HY, showed catalytic activity for the dehydrosulfurization of ethanethiol. The catalytic activity of MeY in the dehydrosulfurization of ethanethiol at 400/sup 0/C was changed by the kind of metal ions in the zeolites and a volcano shape order was observed between the catalytic activity and the electronegativity, Xi, of the metal ions. The order of the catalytic activity was NaX>NaY>NaA. The changes in the activity of HY in ethanethiol dehydrosulfurization and cumene dealkylation by calcination agreed with the decrease in the Bronsted acidity determined by Ward but was independent of Lewis acidity. Me/sup 0/Y, such as Co/sup 0/Y, Ni/sup 0/Y, Cu/sup 0/Y and Ag/sup 0/Y, showed higher catalytic activity than a commercial hydrodesulfurization catalyst and the order of the activity was Ni/sup 0/Y>Co/sup 0/Y>Cu/sup 0/Y>Ag/sup 0/Y. Reduced and presulfided Me/sup 0/Y zeolites showed selective hydrodesulfurization activity for thiophene. The remarkable promoting effect of NiO and MoO/sub 3/ upon the catalytic activity of Me/sup 0/Y was not observed in the hydrodesulfurization of thiophene. Zeolite catalysts have a possibility of use as effective hydrodesulfurization catalysts for petroleum if further improvement in catalyst deactivation of Me/sup 0/Y zeolite is accomplished. The investigation of the hydrodesulfurization of thiophene over Me/sup 0/Y zeolites would become a good model to clarify the mechanism of the hydrodesulfurization of petroleum.

• Research Organization: Hokkaido Univ., Sapporo, Japan
• OSTI ID: 5290876
• Report Number(s): CONF-800303-(Vol.25No.2)
• Conference Information: Journal Name: Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States) Journal Volume: 25:2
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTIONS
CRYOGENIC FLUIDS
DESULFURIZATION
ELEMENTS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUELS
HETEROCYCLIC COMPOUNDS
HYDROGEN
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MINERALS
NONMETALS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PETROLEUM
THIOLS
THIOPHENE
ZEOLITES