Chemistry of hydrocarbon compounds – Aromatic compound synthesis – By condensation of entire molecules or entire hydrocarbyl...
Patent
1992-12-07
1994-04-12
McFarlane, Anthony
Chemistry of hydrocarbon compounds
Aromatic compound synthesis
By condensation of entire molecules or entire hydrocarbyl...
585 25, 585 26, 585467, C07C 266, C07C 1524, C07C 1527
Patent
active
053027698
ABSTRACT:
A polycyclic aromatic is contacted with an alkyl-substituted single ring aromatic, such as toluene, o-, m- or p-xylene or mesitylene, over a catalyst comprising a zeolite, such as zeolite beta, USY or ZSM-5 to alkylate the polycyclic aromatic. The polycyclic aromatic can be a fused polynuclear aromatic, e.g. phenanthrene, or an assembly of two or more cyclic systems, e.g. biphenyl. The polycyclic aromatic can also include carbocyclic systems such as fluorene and naphthalene or heterocyclic systems such as benzothiophene and dibenzothiophene. The polycyclic aromatic can be derived from a cycle oil, coker gas oil, extract of lubricant solvent refining or crude distillate fraction. The transalkylating agent can be derived from a reformate, pyrolysis gasoline or coker naphtha.
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"Recent Advances in the Chemistry of Dibenzothiophenes", Ashby et al., Advances in Heterocyclic Chemistry, vol. 16, pp. 221-230 (1974).
D. Fraenkel et al., "Shape-Selective Alkylation of Naphthalene and Methylnaphthalene with Methanol over H-ZSM-5 Zeolite Catalysts", 101, J. Catal., pp. 273-283 (1986).
Marler David O.
Mazzone Dominick N.
Rollmann L. Deane
Keen Malcolm D.
McFarlane Anthony
McKillop Alexander J.
Mobil Oil Corporation
Sinnott Jessica M.
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