Institut Francais Du Pe'trole

Elf France

Dang V Quang

Jean-Francois Le Page

Pierre Amigues

Regis Bonifay

Pierre Ham

Jean-Ferdinand Gaillard

Claude Raimbault

Daniel Gelas

Christian Legrand

Dominique Commereuc

Philippe Courty

Yves Chauvin

Charles Cameron

Andre Sugier

Daniel Durand

Alain Feugier

Bernard M Poussin

Paul Gateau

Jacques Leonard

Jean-Luc Nocca

Jean Paul Euzen

Claude Pradel

Michel Davidson

A device for carrying out a succession of heterogeneous catalysis reactions and thermal reactions has an external cylindrical envelope with a longitudinal axis, a coaxial gas permeable casing containing a catalyst located within the envelope, a central manifold, a unit for the injection of a principal reagent into the gas permeable casing, a unit for the injection of reactive components for the catalytic reaction into said casing and an outlet for discharging reaction products from the envelope; an internal diameter of the casing being greater than an external diameter of the central manifold in order to create an annular space therebetween for providing sufficient time for products of a catalytic reaction to remain in order to permit a thermal reaction to develop.

Reactor for carrying out a succession of heterogeneous catalysis and

The invention concerns a process and an apparatus for performing chemical reactions under pressure in the presence of a solid catalyst in a multi-stage reaction zone, after external intermediary thermal conditioning. This process may be used for the synthesis of ammonia or methanol or for gasoline reforming. It is characterized in that at least one reaction fluid is introduced into at least one compartment, a first reaction effluent is recovered, a heat exchange takes place, outside the reaction zone, between a first effluent and an external heat exchange medium, then the first effluent is introduced into at least one subsequent compartment and a second reaction effluent is recovered from the subsequent compartment. The reaction fluid or reaction effluent circulates cross-wise in the compartments substantially perpendicularly to the reaction zone, the compartments being tight and of elongate shape, each compartment being adjacent to one or two other compartments, each group of two adjacent compartments comprising a common partition wall, either substantially parallel to generatrix or substantially oblique with respect thereto.

Apparatus for performing chemical reactions under pressure in a

The invention concerns a process and an apparatus for performing chemical reactions under pressure in the presence of a solid catalyst in a multi-stage reaction zone, after external intermediary thermal conditioning. This process may be used for the synthesis of ammonia or methanol or for gasoline reforming. It is characterized in that at least one reaction fluid is introduced into at least one compartment, a first reaction effluent is recovered, a heat exchange takes place, outside the reaction zone, between a first effluent and an external heat exchange medium, then said first effluent is introduced into at least one subsequent compartment and a second reaction effluent is recovered from said subsequent compartment. The reaction fluid or reaction effluent circulates cross-wise in the compartments substantially perpendicularly to the reaction zone, the compartments being tight and of elongate shape, each compartment being adjacent to one or two other compartments, each group of two adjacent compartments comprising a common partition, wall, either substantially parallel to said generatrix or substantially oblique with respect thereto.

Process and apparatus for performing chemical reactions under pressure

The invention concerns a process and apparatus for manufacturing methyl tert-butyl ether (MTBE) by reacting methanol with an isobutene-containing hydrocarbon mixture. This process is characterized by the steps of:

Apparatus for reactive distillation

The present invention provides a burner for the partial oxidation under pressure of a first fluid by the second fluid. This burner comprises two fluid introduction tubes, one being internal to the other, with each of the tubes comprising a plate, and with each plate having several holes and a plate of the external tube has holes placed opposite the holes in the internal plate.

Partial oxidation burner for producing synthetic gases

The invention concerns a process for manufacturing methyl tert-butyl ether (MTBE) by reacting methanol with an isobutene-containing hydrocarbon mixture. This process is characterized by the steps of:

Process for manufacturing a tertiary alkyl ether by reactive distillation

The invention relates to a process for the production of hydrogen by catalytic reforming of methanol with water vapor. A mixture of methanol, water and carbon dioxide is passed in contact with a catalyst, containing copper, in a fixed bed, in a catalytic zone, at a temperature comprised between 150.degree. and 400.degree. C., the molar ratio of the carbon dioxide to the methanol, at the entrance of the catalytic zone, being comprised between 0.001 and 0.2.

Process for the production of hydrogen by catalytic reforming of

Process and apparatus for carrying out reactions in gas phase, wherein the gas is passed through a cylindrical catalytic reactor so designed that the catalyst bed is divided into several portions arranged in distinct vertical parallelepipedic compartments which are successively traversed by the reaction gas in a direction perpendicular to the axis of the cylindrical reactor. Fresh gas may be supplied between two compartments to maintain the temperature in a well controlled range.

Longitudinal reactor for chemical syntheses in gas phase and

A process for manufacturing synthesis gas (16) from hydrocarbons, water, free oxygen, and a transfer gas containing steam and carbon oxides. The transfer gas is passed through a succession of essentially adiabatic catalyst beds (2, 3, 4, 5, 6, 7) and the hydrocarbons (9, 10,11) and oxygen (13, 14, 15) are alternately introduced at the input of each catalyst bed. The transfer gas may be prepared by vivid combustion of hydrocarbon or by hydrocarbon steam-reforming.

Process for manufacturing synthesis gas by indirect oxidation of

A synthesis gas for methanol production, containing hydrogen and carbon oxides, is obtained by performing, separately, a steam-reforming of hydrocarbons and a hydrocarbon combustion step: the effluents are admixed and the resultant mixture is subjected to steam-reforming.

Process for manufacturing synthesis gas, particularly useful for

Process for the catalytic synthesis of methane by reaction of carbon oxides with hydrogen in the presence of liquid water, wherein the catalyst is formed of a carrier consisting either of coal or charcoal, preferably of plant origin, or of alumina-silica, on which is deposited ruthenium, for example by impregnation with ruthenium acetylacetonate, said catalyst being preferably used as particles suspended in water.

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Neuilly sur Seine, France

Dang V Quang