L'air Liquide, Soci&#xe9;t&#xe9; Anonyme Pour L'etude Et L'exploitation Des Proc&#xe9;d&#xe9;s Georges Claude

L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des

L'air Liquide, Societe Anonyme a Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude

Centre National De La Recherche Scientifique

Alma Mater Studiorum Universita De Bologna

Ekoscan

Daniel Gary

Rene Lardeau

Angelo Vaccari

Philippe Fraysse

Frederic Castellanet

Giuseppe Fornasari

Marie Basin

Jean-Yves Thonnelier

Laurent Prost

Francesco Basile

Pascal Del Gallo

Jean-Philippe Tadiello

Jean Louise

Valentina Rosetti

Aude Cuni

Bertrand Mollaret

Jean-Marc Girard

Serge Moreau

Laurent Allidieres

Marc Wagner

Bernard Darredeau

Bernard Saulnier

Jean-Christophe Rostaing

Thierry Chartier

Pascal Del-Gallo

Antonio Coscia

Dieter Ulber

Jean Gallarda

Cyrille Millet

Philippe Arpentinier

Nicolas Richet

Diana Tudorache

Mathieu Cornillac

Matthieu Flin

Julien Cances

Olivier Dubet

Solène Valentin

Mikael Wattiau

Sébastien Cadalen

Erika Scavetta

Jacques Segret

Florence Gouhinec

Florent Chaffotte

Dirck Simons

Jader Furtado

Raphaël Faure

Carlo Lucarelli

Patrice Levee

David Frimat

Frederic Rouseau

Clement Lix

Olivier Bardoux

Valentin Perret

Hugo Cence

Christiane Muller

Anna Fraczkiewicz

Karolina Maminska

Dominique Fournis

Jean-Marie Friedt

Caroline Bertail

Clément Lix

Antoine Hsu

Frederic Camy-Perret

Martina Ridlova

Giuseppe Brenna

Olivier Debellemaniere

Raphael Faure

Frédéric Bornette

Isabelle Pitault

Clémence Nikitine

Domenica Tonelli

Nik Lygeros

Amara Fezoua

Nicola Schiaroli

Marion David

Frank Bruder

Guillaume Lodier

Frédéric Rousseau

Fabrice c/o Université De Limoges Rossignol

A method of monitoring a portion of an equipment under pressure implementing a control station to control an ultrasonic non-destructive testing device through a remote network, includes: the control station sends a first measurement request to the non-destructive testing device; the control station receives a first plurality of measurement data from the non-destructive testing device, constructs a first mapping of the portion of the structure from the data; sends a second measurement request to the non-destructive testing device, receives a second plurality of measurement data from the non-destructive testing device, constructs a second mapping of the portion of the structure, from the second plurality of measurement data, and compares the first mapping and the second mapping.

Method for monitoring the change over time of a defect in a structure

Disclosed is a packing made up of a stack of plates, having been shaped to form corrugations in the plate and assembled to form a cross-corrugated packing block for a mass and/or heat transfer application, wherein the material of the packing plates is an open-pore metal foam, and in that the specific surface area of the packing is greater than 500 m2/m3 and in that the thickness (e) of the plate is less than 2 mm before the shaping operation.

Cross-corrugated packing made from metal foam

The invention relates to a process for producing hydrogen from a light hydrocarbon source, in which a synthesis gas is generated by steam methane reforming after desulfurization and optionally pre-reforming of the feedstock. The synthesis gas is enriched with hydrogen by steam conversion of carbon monoxide, and is subsequently purified in a pressure swing adsorption unit to give a pure Hproduct and a residual gas mixture containing CH, CO, Hand CO; in accordance with the invention, the conversion step is performed in a cooled reactor in which the heat of the conversion reaction is transferred to a fluid which feeds the burners of the reformer, or to the gas for reforming.

Process for producing hydrogen by steam reforming and conversion of co

A device for measuring the internal temperature of a reforming tube including a first structure having an axial part of tubular shape positioned in the lengthwise direction of a reforming tube and a radial part projecting radially towards the central axis of the reforming tube, a second structure of oblong shape having at least one thermocouple made of welded Nicrosil/Nisil conductors arranged longitudinally against the axial part and radially against the radial part, and an outer sheath enveloping the first structure and the second structure.

Device for measuring the inner temperature of a reforming tube

A process for the production of a hydrogen gas stream having a CO content of less than 1 ppm having a production cycle comprising two phases: phase 1 includes a) purifying a synthesis gas in a PSA unit, b) recovering a hydrogen gas stream comprising a CO content of greater than 1 ppm, c) purifying the gas stream by adsorption in a TSA unit, and recovery a hydrogen gas stream exhibiting a CO content of less than 1 ppm, and phase 2 includes e) purifying the synthesis gas in a PSA unit, f) recovering a hydrogen gas stream having a CO content of less than 1 ppm, where throughout steps e) and f), the TSA unit is bypassed by the hydrogen gas stream and is regenerated.

Method for the continuous production of a gaseous hydrogen stream

A reformer tube for producing synthesis gas by steam reforming of hydrocarbon-containing feed gases, in which a structured stream reforming catalyst is used, is proposed. According to the invention, a heat exchanger tube is arranged in the interior of the structured catalyst, with the feed gas stream flowing firstly through the structured catalyst and subsequently in countercurrent through the heat exchanger tube. This improves the heat exchange between the synthesis gas product stream and the structured catalyst and the feed gas stream flowing through it, especially in the radial direction.

Reformer tube having a structured catalyst and improved heat balance

The invention relates to an exchanger-reactor comprising at least three stages with at least one stage comprising both: millimetric channels at least partially covered with a catalyst for stimulating a steam reforming reaction, and millimetric channels at least partially covered with a catalyst for stimulating a water gas reaction.

Exchanger-reactor performing steam reforming and water gas reactions for the production of hydrogen

The invention relates to a microstructure of an alloy for a tube for reformers, having an austenitic matrix structure, characterised in that: i) primary micrometric precipitates in the form of MC-type carbides, where M=Fe, Ni or Cr, and/or M(C,N)-type carbides, where M==Nb or Ti, are formed during the solidification of the alloy; ii) secondary nanometric precipitates in the form of MC-type carbides, where M=Fe, Ni or Cr and/or M(C,N)-type carbides, where M==Nb or Ti, are formed during the activation of the tube; and iii) between 0.1 and 0.3% of NiSi7Nb-type intermetallic precipitates is formed during the use of the tube.

Method for producing an alloy for a reforming tube

A process to synthesize a catalyst performing Water-Gas shift reaction at a temperature more than 300&#xb0; C. using a precursor having general formula [(Cu, Zn)(Al, M)(OH)](A).kHO with M=Al, La, Ga or In, A=CO, 0.33&#x3c;x&#x3c;0.5, 1&#x3c;n&#x3c;3.

Process to synthesize a catalyst performing water-gas shift reaction at a high temperature

A catalyst for catalytic reactors of which the outer shape is a helix with n blades, where n is greater than or equal to 1, wherein the stack void fraction percentage is between 75% and 85% and the surface area/volume ratio is greater than 1000 square meters/square meters.

Catalyst having a helical outer shape, improving hydrodynamics in reactors

Process for treating a catalytic reactor comprising a catalyst bed that includes the successive steps of passivating the catalytic reactor leading to the production of an oxidation layer at the surface of the active sites of the catalyst bed, opening the reactor, and skimming at least one portion of the catalyst bed.

Method of treatment for a catalytic reactor

The invention relates to a method for decreasing the spread of the tube temperatures between tubes in a process involving the heating of at least one fluid in a furnace that comprises at least one radiation chamber with radiant walls, at least one essentially vertical row of tubes inside of which circulate the at least one fluid to be heated, and being equipped with burners that heat the tubes, where the method comprises the steps of: determining, for each of the tubes the skin temperature of the tube, selecting the 50% tubes having the lowest temperatures determined, the process being stopped, realizing on each tube selected an operation that decreases the flow of the fluid distributed to said tube while keeping the total flow rate of the fluid unchanged.

Method to homogenize the tube temperatures between tubes during processes involving heating of gas flowing in the tubes

The invention relates to a catalytic reactor including: at least one first architecture/microstructure including a ceramic and/or metal cellular architecture having a pore size of 2 to 80 ppi and a macroporosity of more than 85%, and a microstructure having a grain size of 100 nm to 5 microns, and skeleton densification of more than 95%, and a catalytic layer; and at least one second architecture/microstructure including a spherical or cylindrical architecture having a pore size of 0.1 to 100 &#x3bc;m and a macroporosity of less than 60%, and a microstructure having a grain size of 20 nm to 10 &#x3bc;m and a skeleton densification of 20% to 90%, and a catalytic layer; the first and second architecture/microstructure being stacked inside said reactor.

Catalytic reactor including one cellular area having controlled macroporosity and a controlled microstructure and one area having a standard microstructure

The invention relates to a catalytic reactor including: a reaction chamber; at least one catalytic structure made up of at least one catalytic cell-like architecture having outer dimensions at most 10% smaller than the inner dimensions of the reaction chamber; an annular space between the inner wall of the reaction chamber and the cell-like architectures; and at least one second structure positioned in the annular space, selected from among: a) a fibrous structure, or b) a structure including at least one metal collar clasping at least one portion of the cell-like architectures and supporting metal fins.

Catalytic reactor including a cell-like structure and elements optimizing the contact thereof with the inner wall of the reactor

The invention concerns in particular a method for purifying an input mixture comprising carbon dioxide (CO&#x3c;SUB&#x3e;2&#x3c;/SUB&#x3e;) and carbon monoxide (CO), to eliminate the carbon monoxide contained in said mixture, which consists in contacting, at a temperature higher than room temperature, the input mixture with a purifying material comprising at least one metal oxide, so as to bring about the reduction of the purifying material by the input mixture, leading to oxidization of at least part of the CO of the input mixture into CO&#x3c;SUB&#x3e;2&#x3c;/SUB&#x3e;. The invention also concerns a gaseous chilling method and installation integrating such a purifying operation.

[object Object]

Growing community of inventors

Montigny le Bretonneux, France

Daniel Gary