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 a Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude

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

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L'air Liquide

Centre National De La Recherche Scientifique-cnrs

Bernard Saulnier

Alain Guillard

Patrick Le Bot

Emmanuel Garnier

Didier Magnet

Jean-Renaud Brugerolle

Jean-Louis Girault

Mikael Wattiau

Bao V Ha

Jean-Yves Lehman

Arthur Darde

Daniel Gary

Jean-Pierre Tranier

Benoit Davidian

Marc Wagner

Bernard Darredeau

Antoine Hernandez

Jean-Marc Tsevery

Jean-Pierre Gourbier

Patrice Cavagne

François Fuentes

Guillaume Cardon

Marie-Pascal Victor

Giovanni Massimo

Antonio Trueba

Fran&ccedil;ois De Bussy

Alain Fossier

Quentin Saniez

Erwan Le Guludec

David Quere

Benoît Davidian

Frederic Rouseau

David Frimat

David Bednarski

Nicolas Kofman

Clement Lix

Fr&eacute;d&eacute;ric Staine

Jean-Luc Bretesche

Sophie Deschodt

Clément Lix

Alain Briglia

Laurent Samy

Frédéric Rousseau

A unit for producing argon by cryogenic distillation, suitable for connection to a double air separation column consisting of first and second columns interconnected thermally, comprises an argon separation column surmounted with a top condenser and a denitrogenation column, means for withdrawing an argon-rich and nitrogen-depleted product (LAR) at the bottom of the denitrogenation column, means for connecting the top of the argon separation column to the denitrogenation column, means for sending a top gas from the argon separation column to the atmosphere, means for withdrawing a nitrogen-rich fluid from the top of the denitrogenation column, an analyser for measuring the nitrogen content at the top of the argon separation column, and means for opening and closing the means for connecting the top of the argon separation column to the denitrogenation column depending on the nitrogen content detected by the analyser.

Method for starting up an argon separation column of an apparatus for air separation by cryogenic distillation and unit for implementing the method

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

In a method for separating argon by cryogenic distillation, in which a flow containing argon, oxygen and nitrogen and being more rich in argon than the air is sent to a distillation column, and an argon-rich gas flow is withdrawn at the top of the column, a portion of the argon-rich gas flow is mixed with beads to form a gas mixture containing beads, the beads being capable of adsorbing oxygen in the presence of argon at the column operating temperatures; the portion of the argon-rich gas flow mixed with the beads is condensed and then sent to the top of the column; and a bottom liquid containing beads is withdrawn from the column and treated to remove the beads, the beads removed being regenerated to remove the adsorbed oxygen and being again mixed with the argon-rich gas flow.

Method and apparatus for adsorptive distillation for cryogenic argon/oxygen separation

A stackable modular element comprises a parallelepipedal caisson, the caisson comprising at least one layer of thermal insulation of thickness less than one-third of the width of the caisson, the layer of insulation covering at least the lateral and frontal faces of the caisson and surrounding at least one chamber having a parallelepipedal volume within the caisson, the chamber containing at least one body of material that permits the exchange of mass and/or of heat, the body being parallelepipedal in shape and filling at least part of the chamber, the chamber having an opening on the upper face and/or an opening on the lower face to allow fluid to be transferred to the body from outside the element and/or from the body to outside the element.

Element for construction of a mass- and/or heat-exchange device, assembly of two elements and exchange method using an assembly

A method for separating a feed gas, containing nitrogen and carbon monoxide as main components, in a distillation column: the feed gas is cooled in a heat exchanger; at least a portion of the feed gas, or at least a portion of a gas derived from the feed gas, is sent to a reboiler of the distillation column so as to condense the gas while producing a liquid, and optionally a gas; at least a portion of the liquid is sent to the distillation column; a nitrogen gas-rich flow is extracted from the distillation column; a carbon monoxide-rich flow is extracted from the distillation column, heated in the heat exchanger, and compressed so as to provide a carbon monoxide-rich material at production pressure.

Method for cryogenically separating a mixture of nitrogen and carbon monoxide

A method for repairing a plate heat exchanger of the type comprising a plurality of plates which, together with side bars arranged on the plates, define fluid flow paths is presented.

Method for repairing plate heat exchangers

According to the inventive method, incoming air enters (via) the separation unit (); at least one fraction of said incoming air is supplied from the gas turbine (), and at least one gas flow (via), which is enriched with nitrogen, is extracted from the separation unit (); heat exchange occurs in a first exchanger () between the fraction of incoming air from the gas turbine () and a liquid fraction () to be heated in order to obtain a first heated liquid fraction (); said heated liquid fraction () is added to a liquid mixture fraction () in order to obtain a liquid fraction to be cooled (); heat exchange occurs between said liquid fraction which is to be cooled and the nitrogen-enriched gas flow in a second exchanger ().

Method and system for supplying an air separation unit by means of a gas turbine

Integrated air separation units with a petrochemical process. This invention provides an integrated process and gas treatment process wherein at least one first pressurized gas derived from a first process at a first site is expanded. Using the work generated by the expansion of at least one pressurized gas, a first gas compressor at the first site is driven, operates, and removes compressed gas from the first gas compressor. At least part of the compressed gas from the first gas compressor is sent to a gas treatment unit located at a remote second site. At least part of the compressed gas sent from the first site to the second site is treated in the gas treatment unit. At least one fluid from the gas treatment unit is removed and at least part of the fluid removed from the gas treatment unit is sent to the first site.

Integrated process and gas treatment process

Methods and apparatus for treating a liquid bath of oxygen. A liquid bath of at least 70 mol % of oxygen is located at the base of a cryogenic distillation column. The bath is continuously boiled by an aluminum reboiler. A portion of the liquid bath is purged to prevent a build up of inflammable impurities in the bath. A portion of the purge is sent to a second reboiler, which is less inflammable than the first reboiler. Oxygen boiled by the second reboiler is sent back to the column, and a portion of the oxygen rich liquid bath treated by the second reboiler is also purged. The invention also relates to an apparatus of carrying out this method.

Method and system for treating an oxygen-rich liquid bath collected at the foot of a cryogenic distillation column

An integrated process and air separation process including the steps of: Work expanding at least one first pressurized gasderived from a first process at a first site, using work generated by the expansion of the at least one pressurized gas to drive a first air compressorat the first site and removing compressed air from the first air compressor, sending at least part of the compressed airfrom the first air compressor to an air separation unit, located at a second siteremote by at least 1 km from the first site, separating at least part of the compressed air sent from the first site to the second site in the air separation unit and removing at least one fluidenriched in a component of air from the air separation unit and sending at least part of the fluid enriched in a component of air to the first site.

Integrated process and air separation process

In order to boost production of a product (A) of an existing separation plant (X, ), an additional plant (Y) is integrated with the original plant so as to enable the original plant (X) to produce more of that product (A&plus;B), whilst the additional plant may or may not necessarily itself produce the same product directly. For example, air is separated in a first unit, which is an existing double column distillation plant, to produce an oxygen rich fluid. So as to increase the production of the oxygen rich fluid, a second unit, which is a wash column ( ), is integrated with the first unit. Air ( ) is separated in the single nitrogen wash column ( ) to remove oxygen and gaseous nirogen ( ) is produced at the top of the column. The wash column is fed with liquid nitrogen ( ) from the high pressure column ( ) of an existing air separation unit.

Variable capacity fluid mixture separation apparatus and process

In a process for separating argon-enriched gas, the gas is purified of oxygen in a first column ( ) and then a stream ( ) removed from the top of the first column is sent into a stripping column ( ). The product ( ) is withdrawn as bottoms therefrom.

Process and plant for producing argon by cryogenic distillation

The present invention relates to an air separation plant integrated with another process. Work is recovered from a nitrogen enriched stream produced by an air separation process either by expanding the nitrogen enriched stream directly or by combustion of the nitrogen enriched stream with a fuel stream and expanding gas produced by the combustion.

Integrated power generation system

A separation device which does not produce ultra-pure products. At least one distillation column which has a diameter of at least 4 m and/or is configured for operation at a pressure above 4.5 bar, consists of non-oxidizing steel or steel containing 9 to 10% by weight nickel. The separation device can be an air separation device.

Device and method for separating substances by cryogenic distillation

A method for air distillation with production of argon using an air distilling installation (1) comprising an air distilling apparatus (2) in particular with double column, and at least one column for producing impure argon. The installation has dimensions for supplying argon with a nominal yield &rgr;,of argon extraction at the impure argon producing column output. For reduced argon production requirements corresponding to a required yield &rgr; of argon extraction at the impure argon producing column output, with &rgr;&lE;&rgr;,&lE;&rgr;,where &rgr;,is a predetermined optimal yield, the argon extraction yield in the impure argon producing column is maintained at the value &rgr;,.

Method and installation for air distillation with production of argon

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La Garenne Colombes, France

Bernard Saulnier