Hydrogenation of aromatic hydrocarbons catalyzed by sulfided CoO-MoO/sub 3//. gamma. -Al/sub 2/O/sub 3/: reactivities, reaction networks, and kinetics
There has been a surge of development work on processes for upgrading heavy fossil fuels, including coal liquids, shale oil, tar sands, and petroleum residua. Upgrading is normally effected by hydrotreating in the presence of catalysts like cobalt molybdate or nickel molybdate at 50 to 250 atm and 300 to 450/sup 0/C. Hydrogenation of aromatics is also important in developing coal liquefaction technology exemplified by the donor solvent process and some forms of the solvent refined coal process; in these processes the product liquid undergoes catalytic hydrogenation and is then recycled to the liquefaction reactor, where it transfers hydrogen to the liquefying coal. The experiments reported here were carried out to establish the reactivities and reaction networks for hydrogenation of benzene, biphenyl, naphthalene, and 2-phenylnaphthalene as well as detailed kinetics of biphenyl hydrogenation in the presence of a commercial catalysts (sulfided cobalt molybdate, CoO-MoO/sub 3//..gamma..-Al/sub 2/O/sub 3/). Biphenyl and 2-phenylnaphthalene were chosen as model reactants in part because they are the principal aromatic products formed in the hydrodesulfurization of dibenzothiophene and of benzo(b)naphtho(2,3-d)-thiophene, respectively. The latter two compounds are typical of the least reactive sulfur-containing compounds found in the heavier petroleum residua and coal-derived liquids. Naphthalene was chosen because upon hydrogenation it forms tetralin, the most widely used model compound used as a hydrogen donor in coal liquefaction experiments.
- Research Organization:
- Univ. of Delaware, Newark
- OSTI ID:
- 5270503
- Report Number(s):
- CONF-800303-P4
- Journal Information:
- Am. Chem. Soc., Div. Fuel Chem., Prepr.; (United States), Journal Name: Am. Chem. Soc., Div. Fuel Chem., Prepr.; (United States) Vol. 25:1; ISSN ACFPA
- Country of Publication:
- United States
- Language:
- English
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Hydrogenation of aromatic compounds catalyzed by sulfided CoO-MoO/sub 3//. gamma. -Al/sub 2/O/sub 3/
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Related Subjects
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
AROMATICS
BENZENE
BIPHENYL
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COAL LIQUEFACTION
COAL LIQUIDS
COBALT
CONDENSED AROMATICS
DATA
DATA FORMS
ELEMENTS
EXPERIMENTAL DATA
GRAPHS
HYDROCARBONS
HYDROGENATION
INFORMATION
KINETICS
LIQUEFACTION
METALS
MOLYBDENUM
NAPHTHALENE
NICKEL
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC SOLVENTS
PROCESSING
REACTION KINETICS
REFINING
REFRACTORY METALS
SOLVENTS
STRUCTURAL MODELS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS