L'air Liquide,societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude

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

Air Liquide Global E&c Solutions US Inc.

Air Liquid Process & Construction, Inc.

Jean-Pierre Tranier

Arthur Darde

Philippe Court

Bao V Ha

Paul Terrien

Sudhir S Kulkarni

Benoit Davidian

Edgar S Sanders, Jr

David J Hasse

Christian Monereau

Serge Moreau

Denis Clodic

Golo Zick

Vladimir Hasanov

Fabrice Delcorso

Edgar S Sanders

Richard Dubettier-Grenier

Youssef Joumani

Elise Renou

Xavier Traversac

Simon Jallais

Guillaume De Smedt

Ivan Sanchez-Molinero

Bruno Alban

Christophe Claeys

Jocelyn Le Dirach

Jean-Yves Lehman

Alain Briglia

Patrick Le Bot

Marc Wagner

Bernard Saulnier

Pierre Petit

Jean-Marc Tsevery

Ludovic Granados

Maurice Bosquain

François Fuentes

Guillaume Cardon

Frederick Lockwood

Ludovic Amant

Solène Valentin

Quentin Saniez

Fabrice Del Corso

Jean-François Rauch

Frédéric Crayssac

Claire Bourhy-Weber

Antony Correia Anacleto

David Frimat

Maxime Rozieres

Alain Ravex

Christophe Michel

Dominique Antonio

Francois-Xavier Lemant

Sophie Deschodt

David Bednarski

Frédérick Lockwood

A method for separating air by cryogenic distillation in a system of columns comprising a first column and a second column operating at a lower pressure than the first column, comprising the steps of compressing all of the feed air in a first compressor to a first output pressure of at least 1 bar greater than the pressure of the first column, sending a first portion of the air under the first output pressure to the second compressor, and compressing the air to a second output pressure, cooling and condensing at least a portion of the air under the second output pressure in a heat exchanger, withdrawal of a liquid from a column of the system of columns, pressurising the liquid and evaporating the liquid by heat exchange in the heat exchanger, and pressure reduction of a portion of the compressed air to a second output pressure, at least partially evaporating said air in the heat exchanger, optionally additional heating of said air in the heat exchanger, and sending at least a portion of this air to the second compressor.

Method and apparatus for air separation by cryogenic distillation

In a method for separating air by cryogenic distillation using a column system consisting of a higher pressure column operating at a first pressure and a lower pressure column operating at a second pressure, a first air flow constituting between 75% and 98% of the air sent to the column system compressed to a third pressure above the first pressure, is sent to the higher pressure column, a second air flow constituting between 5% and 25% of the air sent to the column system is compressed to a fourth pressure above the second pressure but lower than the third pressure, is sent to the lower pressure column, a third column separates an argon-enriched flow and the air sent to the lower pressure column constitutes between 10% and 25% of the total air sent to the column system.

Method and apparatus for separating air by cryogenic distillation

The invention relates to a process for the combined production of hydrogen and carbon dioxide from a hydrocarbon mixture, in which the residual gas of a PSA H() is separated by permeation in order to reduce the hydrocarbon content thereof and the hydrocarbon-purified gas is separated at a low temperature to produce a carbon dioxide-rich liquid ().

Process and device for the combined production of hydrogen and carbon dioxide from a hydrocarbon mixture

A cryogenic installation unit comprises at least one item of equipment to be thermally insulated, a structure for containing the at least one item of equipment, a main insulation contained in the structure and, associated with this main insulation, a secondary insulation of lower thermal conductivity than the main insulation, said secondary insulation consisting of a vacuum insulation panel.

Cryogenic distillation comprising vacuum insulation panel

A process for compressing a gaseous fluid comprising a step (a) of injecting refrigerant during which a refrigerant substance is sprayed into the gaseous fluid to be compressed, and also a compression step (b), during which the passage of said gaseous fluid loaded with refrigerant substance is forced through said compressor in order to compress said gaseous fluid, the mass flow rate (Q3) of the refrigerant substance injected into the gaseous fluid represents between 1% and 5% of the mass flow rate of the gaseous fluid to be compressed, and the refrigerant substance is sprayed in the form of particles having a maximum dimension of less than or equal to 25 pm, and preferably less than or equal to 10 pm.

Gas compression process with introduction of excess refrigerant at compressor inlet

The invention relates to a heat exchanger assembly having two exchangers, each comprising a stack of parallel plates defining a first connection surface and a second connection surface that are adjacent to each other. The heat exchanger assembly can also include an enclosure between the first connection surface and the second connection surface, primary compartments in the enclosure configured to channel primary fluid through the first connection surface and the second connection surface, and a secondary compartment in the enclosure for channeling secondary fluid.

Heat exchanger assembly

The invention relates to a unit and method for melting in a furnace comprising a combustion-heated melting chamber, in which the air is heated by means of heat exchange with the fumes generated by combustion. The heated air is used in a gas turbine in order to generate electrical and/or mechanical energy. In addition, the effluent from the gas turbine is used to pre-heat the combustion oxygen and/or gaseous fuel upstream of the melting chamber.

Energy recovery from fumes from a melting furnace using a gas turbine and heat exchangers

The invention relates to a melting unit and method in which: a melting chamber is heated by means of combustion, the combustion fumes are used to heat the air used as a heat-transfer gas, the heated air is used to pre-heat the combustion oxygen and/or the gaseous fuel, the tempered air resulting from the pre-heating is compressed, the compressed tempered air is heated by means of heat exchange with the combustion fumes, and the mechanical and/or electrical energy is generated by expansion of the heated compressed air.

Energy recovery from fumes from a melting furnace with a gas turbine and heat exchangers

An apparatus for compressing air and producing a carbon dioxide-rich fluid includes an air compressor, an element for bringing the air bound for the air compressor into contact with water to produce humidified air and cooled water, a pipe for sending the humidified compressed air from the air compressor to an installation producing a carbon dioxide-rich gas, a carbon dioxide-rich gas compressor for compressing the carbon dioxide-rich gas, at least one heat exchanger upstream and/or downstream the carbon dioxide-rich gas compressor and pipes for conveying into the heat exchanger water cooled in the contact element and the carbon dioxide-rich gas.

Integrated method and apparatus for compressing air and producing carbon dioxide-rich fluid

Disclosed are methods of obtaining carbon dioxide from a CO-containing gas mixture. The methods combine the benefits of gas membrane separation with cryogenic temperatures.

Method of obtaining carbon dioxide from a carbon dioxide-containing gas mixture

In a method for purifying a flow rich in carbon dioxide and containing at least one impurity lighter than carbon dioxide, the flow is cooled in a heat exchanger () and partially condensed, the partially condensed flow is sent to a first phase separator () operating under a first pressure, a gas from the first phase separator is compressed and sent to a second phase separator () operating under a second pressure higher than the first pressure, a first liquid () is sent from the first phase separator to a housing () operating under a pressure lower than the first pressure, and a second liquid () is sent to the housing.

Method and appliance for purifying a flow rich in carbon dioxide

The invention relates to an integrated device for separating air and heating a gas in the air resulting from said air separation, comprising: an air separation device (); a heat exchanger (); a channel for conveying the gas in the air to the heat exchanger; and a channel for conveying water to the heat exchanger, the water-conveying channel being connected to the water inlet or water outlet of a water preheat exchanger () or a water deaerator (). According to the invention, the preheat exchanger and/or the deaerator are connected to an oxy-combustion boiler () in order to convey water to and from the boiler, said boiler also being connected to the separation device in order to receive an oxygen-enriched gas ().

Method and integrated device for separating air and heating an air gas originating from an air separation device

A process for separating carbon dioxide from a carbon dioxide containing fluid comprises the steps of: compressing the fluid in a compressor to form a compressed fluid, drying at least part of the compressed fluid to form a compressed and dried fluid, cooling at least part of the compressed and dried fluid to form a compressed, dried and cooled fluid, separating the compressed, dried and cooled fluid at a temperature lower than 0&#xb0; C. into a carbon dioxide rich stream, a carbon dioxide lean stream and at least one intermediate purity liquid stream having a carbon dioxide purity lower than that of the carbon dioxide rich stream and higher than that of the carbon dioxide lean stream, expanding at least one intermediate purity liquid stream to produce at least one expanded stream using at least one expanded stream to cool the compressed and dried fluid and recycling at least part of the expanded stream.

Process and apparatus for the separation of a gaseous mixture

The present invention relates to a method for producing hydrogen, with reduced carbon dioxide emissions, from a hydrocarbon mixture. In said method, the hydrocarbon mixture is reformed so as to produce a synthetic gas that is cooled, then treated in a shift reactor so as to be enriched with H2 and CO2. Optionally dried, said mixture is treated in a PSA hydrogen purification unit in order to produce hydrogen. The residue is treated by means of partial condensation with a view to capturing CO4 before said residue is sent as fuel to reforming.

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L'Hay-les-Roses, France

Jean-Pierre Tranier