Elf France

Institut Francais Du Pe'trole

Societe Nationale Elf Aquitaine

Elf Aquitaine Production

Elf-union

Elf Atochem S.a.

Total Sa

Elf Exploration Production

Elf Aquitaine

Total France

Totalfinaelf France

Entreprise De Recherches Et D'activites Petrolieres (e.r.a.p.)

Total Raffinage Marketing

Jacques Bousquet

Jean-Rene Bernard

Charles Cameron

Patrick Chaumette

Quang Dang Vu

Cuong Pham-Huu

Marc-Jacques Ledoux

Sabine Savin-Poncet

Claude Gueguen

Guy Desgrandchamps

Jacques Barbier

Pierre Renard

Jean-Francois Le Page

Jean-Marie Basset

Alain Billon

Yves Correia

Francois Fajula

Frederic Morel

Francois Figueras

Jean-Jacques Masini

Francesco S Di Renzo

Jacques Tournier-Lasserve

Philippe Schulz

Maurice A Bergougnou

Jean Rene Bernard

Robert Mutin

Michel Laborde

Thierry J Barbou Des Courieres

Jean-Marc Le Blevec

Daniel Vautier

Claude Guguen

Pierre Turlier

Jean-Michel Biedermann

Jean Pierre Mermoz

Michel Grand

Didier Tichit

Abbas Mattrod-Bashi

Alain Secq

Jacquos Tournier-Lasserve

Behrang Madani

Pascaline Leroi

Didier Anglerot

Didier Colson

Christine Bebon

Jean-Paul Klein

Alain Storck

Peter Kinzel

Gerard Valentin

Le Xuan Huynh

Alain Catros

Jean-Luc Volle

Maxime Lacroix

Daniel Schweich

Sophie Mariotti

Danielle Barjon

In a process for the conversion of carbon monoxide to Chydrocarbons in the presence of hydrogen and of a catalyst comprising a metal and a support comprising silicon carbide, the support comprises more than 50% by weight of silicon carbide in the beta form. A process for the conversion of carbon monoxide to Chydrocarbons in the presence of hydrogen and of a catalyst the effluent thus obtained are also disclosed.

Process for the conversion of a synthesis gas to hydrocarbons in the presence of beta-SiC and effluent from this process

The invention relates to a method for obtaining synthesis gas by partial catalytic oxidation, consisting in bringing a hydrocarbon in a gaseous state into contact with an oxidizing gas, and therefore possibly a small amount of water vapor, in the presence of a catalyst comprising at least one silicon carbide at a temperature of more than 800&#xb0; C. According to the invention, the silicon carbide has a specific surface which is determined by the BET method and which is less than or equal to 100 m/g, the contact time between the mixture of gaseous hydrocarbon, oxidizing gas and silicon carbide being more than 0.05 seconds and the pressure inside the reactor being greater than atmospheric pressure.

Method for obtaining synthesis gas by partial catalytic oxidation

Method of zeolite synthesis with homogeneous shaking out of the medium,

The invention concerns a method consisting: in passing the sea water through an electrically conductive catalyst (10), arranged in the cathode section of an electrolytic cell (1), comprising a cathode section (3) and an anode section (4) provided with, the former, with at least one cathode (11a, . . . ) and, the latter, with at least one anode (18) and separated by a wall (2) permeable only to the cations and in circulating, in the anode section (4), a conductive aqueous solution of a particular anolyte; in providing an electric voltage between the cathode and the anode of the cell (1) while maintaining the contents of the cathode and the anode sections at specific potentials, so as to produce, in the cathode section, consumption of oxygen dissolved in the treated water and in decomposing, in the anode section, an appropriate amount of solution for ensuring the electroneutrality of the treated water.

Electrocatalytic method for the deoxygenation of sea water and device

Method and catalyst for forced catalytic deoxygenation of sea water

The invention concerns steps in a process for the synthesis of at least one alkyl tertiobutyl ether, preferably respectively MTBE or ETBE, from at least one alcohol and from isobutene, each synthesized at least partially from natural gas. The alcohol, preferably methanol or ethanol respectively, is synthesized at least partially from synthesis gas, a portion of said synthesis gas being prepared in a natural gas steam prereforming zone. The isobutene is synthesized in a series of processes which includes direct transformation of natural gas to ethylene, known as oxidative coupling of methane (OCM), dimerisation of ethylene to normal butene, isomerisation of n-butene to isobutene, and the separation units associated therewith.

Steps in a process for the production of at least one alkyl tertiobutyl

The invention concerns a process for the synthesis of at least one alkyl tertiobutyl ether, preferably respectively MTBE or ETBE, from at least one alcohol and from isobutene, each synthesized at least partially from natural gas. The alcohol, preferably methanol or ethanol respectively, is synthesized at least partially from synthesis gas, a portion of said synthesis gas being prepared in natural gas steam prereforming zone. The isobutene is synthesized in a series of processes which includes direct transformation of natural gas to ethylene, known as oxidative coupling of methane (OCM), dimerization of ethylene to normal butene, isomerization of n-butene to isobutene, and the separation units associated therewith.

Process for the production of at least one alkyl tertiobutyl ether from

Vinyl chloride monomer is selectively prepared by intimately contacting, in the absence of steam, a feedstream of 1,2-dichloroethane with a flow of fluid or solid particulates heated to such elevated temperature and for such minim period of time, e.g., 0.010 to 0.5 second, as to flash transfer a dehydrochlorinating amount of thermal energy to the 1,2-dichloroethane and thereby ultrapyrolyzing at least a fraction of same into vinyl chloride and HCl, and recovering the vinyl chloride from the medium of ultrapyrolysis.

Prepartion of vinyl chloride by ultrapyrolysis of 1,2-dichloroethane

Device for dispersion of gas in a liquid phase

This invention concerns a process for the thermal treatment of hydrocarbon charges having a high content of asphaltenes in the presence of additives which prevent coke formation. The additive according to the invention is a salt of a metal selected from V, Mo, Cr, W, Fe, Co and Ni at a concentration between 100 and 2500 ppm of metal relative to the charge either in the form of a suspension of solid particles, in solution or as an emulsion. These additives prevent the coke formation in all thermal treatments of which the temperature is above about 420.degree. C., such as viscoreduction or hydro viscoreduction.

Process for the thermal treatment of hydrocarbon charges in the presence

There are provided clays of laminated structure bridged by metallic oxides selected from oxides of aluminum and zirconium and containing from 10 to 50% and preferably from 20 to 40% of an oxide of the metal of the group of the lanthanides, preferably of cerium. The presence of cerium improves the thermal resistance during a dry calcination or even under humid air. The clays can be used as catalysts during the conversion of hydrocarbons.

Bridged clays of improved thermal stability process for their

Process for deasphalting a hydrocarbon charge by means of a deasphalting solvent. The charge (1) is introduced, at 100.degree.-200.degree. C., in admixture with a deasphalting solvent (3and 4), into a settler (7). The deasphalted oil (24) is separated from the solvent (23). Asphalt (9) is washed in a column and then separated from the washing liquid (21).

Process for deasphalting a hydrocarbon charge containing asphaltenes

The present invention concerns a hydrotreatment process for petroleum cuts, in order to achieve simultaneously their desulfurization and the improvement of their flow properties. The process comprises treating the cuts in the presence of a catalytic system based on a zeolitic crystalline silico aluminate of the offretite type, wherein the synthetic offretite used has a crystalline structure identical to natural offretite and has the chemical formula (M.sub.1 M.sub.2 . . . ).sub.2 (Al.sub.2 O.sub.3) (SiO.sub.2).sub.y in which y is comprised between 10 and 50, M.sub.1 and M.sub.2 are selected from among cations of group I and II of the Periodic Table of Elements and this offretite is associated with a bimetallic catalyst comprising a mixture of an oxide or sulfide of a metal selected from among the group comprising chromium, molybdenum and tungsten with an oxide or a sulfide of a metal selected from among the group comprising iron, cobalt and nickel.

Hydrotreatment for petroleum cuts with offretite

The invention relates to a process to improve the stability of a catalyst to be used for lowering the cloud or turbidity point and the filterability limit temperature of gas-oils. The catalyst is formed of a composite system constituting 5 to 90% of a hydrodesulfuration type catalyst A and 95 to 10% of a hydroconversion type catalyst B, these two catalysts being either mixed or superposed, in which case catalyst A forms the top of the catalytic bed.

Process for improving the stability of catalysts for the catalytic

The invention is directed to a catalytic process for hydro-treating gas oils in order to improve their flow properties, the feed stock being treated at a temperature of between 400.degree. and 550.degree. C., under a total pressure of between 18 and 60 bars with a hydrogen/hydrocarbon molar ratio of between 2 and 8 in the presence of a catalyst comprising by weight from 0.1 to 1% of platinum and 0.01 to 1% of iridium deposited on an alumina support having a specific surface higher than 50 m.sup.2 /g, a silica content of less than 10% weight and a halogen content of less than 0.1%.

Catalytic process for hydro-treating gas oils in the presence of hydrogen

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Irigny, France

Jacques Bousquet