Infrared spectroscopic investigation for catalytic desulfurization of organic sulfur compounds

Conference · Thu Mar 01 04:00:00 EST 1979 · Prepr., Div. Pet. Chem., Am. Chem. Soc.; (United States)

OSTI ID:5953979

Sugioka, M; Kamanaka, T; Aomura, K

Various kinds of zeolites, such as Na-zeolites, HY and MeY, showed catalytic activity for the cracking of ethanethiol; and the products were ethylene and hydrogen sulfide except on NaX. A substantial amount of diethylsulfide together with ethylene and hydrogen sulfide was formed in the ethanethiol cracking on NaX. HY and MeY, but not Na zeolites, showed activity for the cracking of thiophene without gas phase hydrogen; and the products were predominantly hydrogen sulfide. The infrared spectra of ethanethiol and thiophene adsorbed on zeolites suggest that the adsorption states of ethanethiol and thiophene on zeolites depend on the acidic characteristics of zeolites and, in all cases, there is the interaction between these organic sulfur compounds and the surface hydroxyl group or surface oxygen anion of zeolites. It is, thus, concluded that the surface hydroxyl group or surface oxygen anion of zeolites plays an important role for the adsorption of these organic sulfur compounds. Models of adsorption states and the cracking mechanism of ethanethiol and thiophene on zeolites were proposed on the basis of obtained infrared spectra. 3 figures, 2 tables.

• Research Organization: Hokkaido Univ., Sapporo, Japan
• OSTI ID: 5953979
• Report Number(s): CONF-790415-P4
• Conference Information: Journal Name: Prepr., Div. Pet. Chem., Am. Chem. Soc.; (United States) Journal Volume: 24:2
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ADSORPTION
ALKENES
ANIONS
CATALYTIC CRACKING
CHALCOGENIDES
CHARGED PARTICLES
CHEMICAL REACTIONS
CRACKING
CRYOGENIC FLUIDS
DECOMPOSITION
DESULFURIZATION
ELEMENTS
ETHYLENE
FLUIDS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
HYDROXIDES
INFRARED SPECTRA
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
IONS
MINERALS
NONMETALS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
OXYGEN IONS
PYROLYSIS
SORPTION
SPECTRA
SULFIDES
SULFUR COMPOUNDS
THERMOCHEMICAL PROCESSES
THIOPHENE
ZEOLITES