Thiophene hydrogenolysis for the evaluation of hydrodesulfurization catalysts

Journal Article · Sat Jul 01 04:00:00 EDT 1978 · Ind. Eng. Chem. Process Des. Dev.; (United States)

DOI:https://doi.org/10.1021/i260067a016· OSTI ID:5318129

Chang, H R; Weller, S W

Thiophene hydrogenolysis at 400/sup 0/C and 1 atm in a vapor-phase, pulsed microcatalytic reactor was used to compare the hydrodesulfurization, olefin hydrogenation, and olefin isomerization functions of a commercial cobalt-molybdenum-alumina hydrodesulfurization catalyst, Harshaw 0402T, and two laboratory catalysts prepared by double impregnation of small- and large-pored aluminas. The small-pored catalyst had the highest hydrodesulfurization and olefin hydrogenation activity; the commercial catalyst was intermediate; the large-pored, the lowest. Sintering at 800/sup 0/ or 925/sup 0/C decreased catalyst activity. Catalyst presulfiding increased total thiophene conversion but decreased olefin hydrogenation. At 400/sup 0/C, the conversion over a 28-35 mesh commercial catalyst was 47%, but over a 10-80 mesh catalyst it was 55%. This particle size effect has possible implications for the use of cobalt-molybdenum-alumina catalysts in the hydrodesulfurization of coal or coal-derived liquids; substantially lower effectiveness factors may be expected in hydrotreating heavy liquids.

• Research Organization: State Univ., Buffalo, NY
• OSTI ID: 5318129
• Journal Information: Ind. Eng. Chem. Process Des. Dev.; (United States), Journal Name: Ind. Eng. Chem. Process Des. Dev.; (United States) Vol. 17:3; ISSN IEPDA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALKENES
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CARBONACEOUS MATERIALS
CATALYSIS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL
COBALT
DESULFURIZATION
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HETEROCYCLIC COMPOUNDS
HIGH TEMPERATURE
HYDROCARBONS
HYDROGENATION
ISOMERIZATION
MATERIALS
METALS
MOLYBDENUM
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POROSITY
THIOPHENE
TRANSITION ELEMENTS