Compagnie De Raffinage Et De Distribution Total France

Compagnie Francaise De Raffinage

Other

Total Raffinage Marketing

Claude Marty

Philippe Engelhard

Patrick Ansquer

Rene Blondeau

Pierre Maroy

Jean-Claude Courcelle

Marc Durrieu

Jean-Michel Orgebin

Luc Seyfried

Patrice Herrenschmidt

Michael Bourgogne

The invention relates to a fuel containing at least 5 vol. %, and preferably at least 10 vol. %, of a hydrocarbon base (B3) consisting essentially of cycloparaffins comprising between 6 and 8 carbon atoms. The ratio R of the quantities by volume (B1+B2)/B3 is higher than 2 and preferably between 2.3 and 19.

Fuel presenting reduced aromatics levels and a high octane number

Catalytic conversion of a hydrocarbon feedstock comprising a stage of catalytic cracking of a hydrocarbon feedstock, a stage of separation of the products of cracking from the catalytic mass, and a stage of regeneration and recycling of the catalytic mass and between the stage of regeneration of the catalytic mass and the stage of separation of the products of cracking there is injected continuously or intermittently, at one or more points, in admixture with at least one hydrocarbon to be treated, at least one diorganophosphite of the general formula ##STR1## where R.sub.1 and R.sub.2, which may be alike or different, are selected from the group consisting of alkyl, aryl or aralkyl groups having from 1 to 30 carbon atoms.

Process for the catalytic conversion of a hydrocarbon feedstock

The invention relates to a water-soluble demulsifying and antifouling agent capable of separating possibly emulsified water/hydrocarbon mixtures, and particularly water/crude petroleum mixtures containing suspended matter. Said agent comprises from 10 to 60 percent by weight of a combination of the following compounds:

Demulsifying and antifouling agent suitable for separating possibly

The invention relates to a process for the sweetening of a petroleum fraction in a fixed catalytic bed in the presence of an oxidizing agent, by catalytic oxidation of the mercaptans which it contains, in the presence of a catalyst in the form of a support impregnated with a metal chelate and in the absence of an aqueous base, the water content of the support is maintained within a predetermined range of values by action on the solvent power of the feedstock for the water of the support as a function of temperature.

Procedure for the fixed-bed sweetening of petroleum fractions

A process for sweetening a petroleum fraction by catalytic oxidation of mercaptans contained therein in a fixed bed of the supported catalyst, with the oxidation reaction being carried out in the absence of an aqueous phase and in the presence of an oxidizing agent, and the water molecules formed during the oxidation reaction being removed from the catalyst support by washing the latter periodically with a substantial quantity of a polar solvent that is miscible with water.

Process for the fixed-bed sweetening of petroleum fractions

Composite catalytic products composed of a metal chelate based catalyst on a solid adsorbent support for use in fixed-bed processes for sweetening mercaptans contained in petroleum fractions are disclosed. The composites contain from 0.05 to 5 weight percent of a metal chelate, from 5 to 15 weight percent of pyrolyzed carbon and from 60 to 90 weight percent of a mineral matrix. The support material is obtained by pyrolysis of wash concentrates of raw wools.

Catalytic composite product for the oxidation of mercaptans and its use

The invention relates to a process for the pretreatment of a light olefin fraction, or of a mixture of such fractions, for the purpose of selectively removing the isobutene and butadiene present. In accordance with the invention, the olefin fraction is contacted with boron trifluoride in the gas phase, under such conditions and for such a length of time that the isobutene and the butadiene will polymerize selectively, and the boron trifluoride and the isobutene and butadiene polymers obtained are then conventionally separated from the effluent.

Process for the pretreatment of light olefin fractions

A process for the oligomerization of olefin fractions where boron trifluoride in the gas phase is contacted with such a fraction, in the absence of a catalyst carrier, under such conditions and for such a length of time that the isobutene and/or butadiene present will polymerize; the boron trifluoride and the isobutene and/or butadiene polymers obtained are then conventionally separated from said fraction; and the olefins of the fraction so purified are oligomerized in the presence of a boron trifluoride catalyst comprising a catalyst carrier.

Process for the oligomerization of light olefin fractions in the

A catalyst suited for use in the sweetening of petroleum distillates (by oxidizing mercaptans to disulfides) which is formed of a metal complex of a polyaminoalkylpolycarboxylic acid deposited directly on a basic anion exchange resin. The method of making the source by exchanging a metal cation on an acidic resin; forming a complex by the action of a polyaminoalkylpolycarboxylic acid upon said resin; and exchanging the complex so formed on a basic anion exchange resin.

Growing community of inventors

Le Havre, France

Claude Marty