Institut Francais Du Pe'trole

Institute Francais Du Petrole

Jean-François Joly

Patrick Briot

Paul Broutin

Elsa Jolimaitre

Dominique Casanave

Sylvie Lacombe

Laurent Bournay

Eric Llido

The invention relates to a method for formulation of a synthetic gas oil or an additive for gas oil in which an alkyl-aromatic compound or a mixture of alkyl-aromatic compounds is selected based on at least one parameter that is selected from the group that consists of the number of cycles of the aromatic core, the number of alkyl chains that are grafted to the aromatic cycle, the length of the alkyl chain or chains, the position of the aromatic cycle or cycles on the alkyl chain or chains of said alkyl-aromatic compound or compounds such that the cetane number of the synthetic gas oil or the additive for gas oil is greater than 30. The invention also relates to a process for the production of alkyl-aromatic compounds for use as a gas oil or additive.

Method for formulation of synthetic gas oils or additives for gas oil

Process for the production of a RON isomerate that is at least equal to 80 and that contains less than 1% by weight of aromatic compounds and a fraction that for the most part contains methylcyclohexane (MCH) and optionally toluene, starting from a fraction with 7 carbon atoms.

Process for isomerization of a C7 fraction with co-production of a cyclic molecule-rich fraction

A process is described for producing phenylalkanes by alkylating at least one aromatic compound using at least one linear olefin containing 9 to 16 carbon atoms per molecule. The alkylation reaction is carried out in the presence of at least two different catalysts used in at least two distinct reaction zones. The selectivity for a monoalkylated products of the catalyst contained in the first reaction zone is lower than that for the catalyst contained in the second reaction zone located downstream of the first in the direction movement of the fluids.

Method for producing phenylalkanes using a combination of two catalysts

A process for the production of an isomerate with a RON that is at least equal to 80 and that contains less than 1% by weight of aromatic compounds, starting with a fraction consisting mostly of hydrocarbons with 7 carbon atoms, and containing paraffins, naphthenes, and aromatic compounds in any proportion is described. Said process uses at least one isomerization unit, at least one unit for opening naphthene rings, and at least one separation unit; these units are combined in such a way as to recycle, to exhaustion, methyl cyclohexane, toluene, and normal paraffins and monobranched paraffins.

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Lyons, France

Jean-François Joly