Hydrogenation of aromatic hydrocarbons catalyzed by sulfided CoO-MoO/sub 3//. gamma. -Al/sub 2/O/sub 3/ reactivities, reaction networks, and kinetics

Conference · Tue Jan 01 04:00:00 EST 1980 · Prepr. Pap., Am. Chem. Soc., Div. Fuel Chem.; (United States)

OSTI ID:6330826

Sapre, A V; Gates, B C

Reaction of benzene with excess hydrogen over a commercial cobalt molybdate catalyst at 300/sup 0/-375/sup 0/C and 75 atm was irreversible, and cyclohexane was the only primary product. Under similar conditions, biphenyl was reversibly converted to cyclohexylbenzene (CHB), which was then hydrogenated to bicyclohexyl, and in a parallel route, to unidentified hydrocarbons, probably CHB isomers. Naphthalene was reversibly hydrogenated to tetralin which was further converted to decalins, mainly the trans-isomer. Hydrogenation of 2-phenylnaphthalene (PN) gave 2- and 6-phenyltetralins as the primary products, each of which was further hydrogenated to phenyl-substituted decalins. Benzene and biphenyl had nearly the same reactivities, about an order of magnitude smaller than those of naphthalene or PN. Kinetic data on biphenyl hydrogenation obtained in a high-pressure flow microreactor at 300/sup 0/-375/sup 0/C and 64-200 atm suggested that the equilibrium concentrations of hydroaromatics, the best hydrogen-donors in coal liquefaction, can be maximized by using lower temperatures and high hydrogen partial pressures. Biphenyl and PN are compounds typical of hydrodesulfurized petroleum residua and coal liquids.

• Research Organization: Univ. of Delaware
• OSTI ID: 6330826
• Report Number(s): CONF-800303-
• Conference Information: Journal Name: Prepr. Pap., Am. Chem. Soc., Div. Fuel Chem.; (United States) Journal Volume: 25:1
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
02 PETROLEUM
020400 -- Petroleum-- Processing
ALKANES
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AROMATICS
BENZENE
BIPHENYL
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMICAL REACTORS
COAL LIQUEFACTION
COBALT
COBALT COMPOUNDS
COBALT OXIDES
CONDENSED AROMATICS
CYCLOALKANES
CYCLOHEXANE
DECALIN
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HIGH PRESSURE
HIGH TEMPERATURE
HYDROCARBONS
HYDROGEN
HYDROGENATION
KINETICS
LIQUEFACTION
MEDIUM PRESSURE
METALS
MOLYBDATES
MOLYBDENUM COMPOUNDS
MOLYBDENUM OXIDES
NAPHTHALENE
NONMETALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PARTIAL PRESSURE
PETROLEUM
PETROLEUM FRACTIONS
PETROLEUM RESIDUES
REACTION INTERMEDIATES
REACTION KINETICS
REFRACTORY METAL COMPOUNDS
SULFIDATION
TETRALIN
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS