Hydrodesulfurization catalysts prepared from X(MS/sub 4/)/sup 2 -//sub 2/ thioheteroanions containing Ni or Co and Mo or W: correlation of ESR signal intensity with thiophene conversion
Hydrodesulfurization catalysts were prepared by impregnating silica and alumina with aqueous solutions of thioheteroanion complexes containing Ni or Co and Mo or W. Their catalytic activities are comparable to those of conventionally prepared catalysts and the ESR spectra are also very similar. Under H/sub 2/S/H/sub 2/ atmosphere the thioheteroanions transform into metal sulfides. Combining the results obtained with catalysts prepared via the new method with those of conventionally prepared catalysts, a larger spread in catalytic activities for thiophene hydrodesulfurization and ESR signal intensities was obtained than for conventional catalysts only. As a result a correlation could be established between the intensity of the ESR signal from Mo/sup 3 +/ and W/sup 3 +/, in interaction with nickel or cobalt promoter ions at the surface of MoS/sub 2/ or WS/sub 2/ crystallites, and the catalytic activity for thiophene hydrodesulfurization.
- Research Organization:
- Eindhoven Univ. of Tech., Netherlands
- OSTI ID:
- 6482280
- Journal Information:
- J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 76:2; ISSN JCTLA
- Country of Publication:
- United States
- Language:
- English
Similar Records
The role of Co in unsupported Co-Mo sulfides in the hydrodesulfurization of thiophene
W-incorporated CoMo/{lambda}-Al{sub 2}O{sub 3} hydrodesulfurization catalyst. I. Catalytic activities
Related Subjects
010402* -- Coal
Lignite
& Peat-- Purification & Upgrading
02 PETROLEUM
020400 -- Petroleum-- Processing
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
04 OIL SHALES AND TAR SANDS
040404 -- Oil Shales & Tar Sands-- Purification
CATALYSIS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
COBALT
DATA
DESULFURIZATION
ELECTRON SPIN RESONANCE
ELEMENTS
ENERGY SOURCES
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
INFORMATION
MAGNETIC RESONANCE
METALS
MOLYBDENUM
NICKEL
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PETROLEUM
RESONANCE
SULFIDES
SULFUR COMPOUNDS
THIOPHENE
TRANSITION ELEMENTS
TUNGSTEN