Institut Francais Du Pe'trole

Pierre-Henri Bigeard

Alain Billon

Samuel Mignard

Patrick Briot

Pierre Dufresne

Slavik Kasztelan

Nathalie Marchal

Marcel Aussillous

Eric Benazzi

Christophe Gueret

Nathalie Marchal-George

Pierre Marion

Frederic Morel

Jean-Luc Duplan

Fr&eacute;d&eacute;ric Morel

Tivadar Cseri

St&eacute;phane Kressmann

Didier Duee

Jean-Pierre Peries

The invention concerns a process for producing gasoline with an improved octane number, optionally accompanied by oil and/or middle distillate production, by conversion-hydroisomerization of the paraffins in the feed using a catalyst containing at least one noble metal deposited on an amorphous acidic support. Isoparaffins are separated from the gasoline cut obtained, and normal paraffins and possibly monobranched paraffins contained in the resulting effluent are isomerized using a catalyst containing at least one hydrodehydrogenating metal and at least one acidic solid. The ensemble of the streams charged with isoparaffins with an improved octane number is sent to the gasoline pool. The residue undergoes catalytic dewaxing.

Process for producing gasoline with an improved octane number

A process for converting a hydrocarbon fraction includes a step a) for treating a hydrocarbon feed in the presence of hydrogen in at least on three-phase reactor, containing at least one hydroconversion catalyst in an ebullated bed, operating in riser mode of liquid and of gas, the reactor including at least one means located close to the bottom of the reactor for extracting catalyst from the reactor and at least one means located close to the top of the reactor for adding fresh catalyst to the reactor, a step b) for treating at least a portion of the effluent from step a) in the presence of hydrogen in at least one reactor containing at least one hydrotreatment catalyst in a fixed bed under conditions for producing an effluent with a reduced sulphur content, and a step c) in which at least a portion of the product from step b) is sent to a distillation zone from which a gaseous fraction, a gasoline type engine fuel fraction, a diesel type engine fuel fraction and a liquid fraction which is heavier than the diesel type fraction are recovered. The process can also include a step d) for catalytic cracking of the heavy fraction obtained from step c).

Process for converting heavy crude oil fractions, comprising an ebullating bed hydroconversion step and a hydrotreatment step

A process for converting a hydrocarbon fraction comprises a step a) for treating a hydrocarbon feed in the presence of hydrogen in at least one three-phase reactor, containing at least one hydrotreatment catalyst in an ebullating bed, operating in riser mode of liquid and of gas, the reactor comprising at least one means located close to the bottom of the reactor for extracting catalyst from the reactor and at least one means located close to the top of the reactor for adding fresh catalyst to the reactor, a step b) for treating at least a portion of the effluent from step a) in the presence of hydrogen in at least one reactor containing at least one hydrocracking catalyst in a fixed bed under conditions for producing an effluent with a reduced sulphur content, and a step c) in which at least a portion of the product from step b) is sent to a distillation zone from which a gaseous fraction, a gasoline type engine fuel fraction, a diesel type engine fuel fraction and a liquid fraction which is heavier than the diesel type fraction are recovered. The process can also comprise a step d) for catalytic cracking of the heavy fraction obtained from step c).

Process for converting heavy crude oil fractions, comprising an

Precious metal and silica-alumina based catalyst and hydroisomerisation

The invention concerns a plant for purifying spent oil, including apparatus for dehydration, preferably by atmospheric distillation, directly followed by vacuum distillation producing a residue and at least one distilled oil fraction. The vacuum residue directly undergoes solvent extraction and the clarified oil obtained and the distilled oil fraction(s) undergo finishing hydrotreatment.

Plant for purifying spent oil

Hydroisomerization treatment process for feeds from the fisher-tropsch

The invention concerns a process and plant for purifying spent oil, comprising dehydration, preferably by atmospheric distillation, directly followed by vacuum distillation producing a residue and at least one distilled oil fraction. The vacuum residue directly undergoes solvent extraction and the clarified oil obtained and the distilled oil fraction(s) undergo finishing hydrotreatment.

Process and plant for purifying spent oil

A process for the joint production of middle distillates and oil bases (viscosity index between 95 and 150) particularly from vacuum distillates and/or deasphalted oils, comprises a first step in which the feedstock is brought into contact with an amorphous catalyst containing at least one metal or metallic compound with a hydro-dehydrogenating function, such as Ni, Mo, W or Co, at a temperature of between 350.degree. C. and 430.degree. C., a pressure of between 5 and 20 MPa, a space velocity of between 0.1 and 5 h.sup.-1 in the presence of hydrogen in a ratio H.sub.2 /HC of 150 to 2,000 by volume. The product from the first step is brought into contact in a second step with a second catalyst comprising a support, a Y zeolite, at least one group VIB element and at least one group VIII metal at a temperature of between 350.degree. C. and 430.degree. C., a pressure of between 5 and 20 MPa and a space velocity of between 0.1 and 5 h.sup.-1.

Process for the improved production of middle distillates jointly with

A method of hydrocracking charges emanating from the Fischer-Tropsch process, in which:

Method of hydrocracking paraffins emanating from the Fischer-Tropsch

For Hydroisomerizering charges emanating from the Fischer-Tropsch process:

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Vienne, France

Pierre-Henri Bigeard