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

Natacha Haik-Beraud

Jean-Marc Peyron

Arthur Darde

Antoine Hernandez

Sophie Lazzarini

Alain Briglia

Philippe Grigoletto

Guillaume Teixeira

Pascal Marty

Thomas Morel

Bernd Polster

Marie-Khuny Khy

Christian Monereau

Marc Wagner

Philippe Court

Vincent Gueret

Jean Billy

Emmanuel Garnier

Patrice Cavagne

Ludovic Granados

Jorge Ernesto Tovar Ramos

Frederic Crayssac

Guillaume Cardon

Olivier De Cayeux

Frederic Rousseau

Marine Andrich

Frédéric Crayssac

Anne Berthelemot

Jean-François Rauch

Thierry Gesbert

Nathalie P Schmitt

Eduard Rosa

Sophie Lazarrini

Francine Chommy

Frédéric Rousseau

Nathalie Schmitt

A method for liquefying a hydrocarbon stream using at least one heat exchanger of the plate and fin type having at least one first part and one second part, the first and second parts being physically separate and each comprising at least one stack of a plurality of plates that are parallel to one another and to a longitudinal direction that is substantially vertical, the plates of the first part and the plates of the second part being stacked in a stacking direction that is orthogonal to the plates, the plates being stacked with spacing so as to define between them a plurality of first passages for the flow of at least part of a second two-phase cooling stream in the first part and a plurality of second passages for the flow of at least part of a first two-phase cooling stream in the second part.

Method for liquefying natural gas with improved exchanger configuration

A heat exchanger having multiple plates which are mutually parallel and parallel to a longitudinal direction, the exchanger having a length measured in the longitudinal direction, the plates being stacked with spacing so as to define a first series of passages for the flow, in a general flow direction parallel to the longitudinal direction, of at least a first refrigerant fluid and a second refrigerant fluid, at least one passage of the first series being defined between two adjacent plates.

Heat exchanger having a configuration of passages and improved heat-exchange structures, and cooling method using at least one such heat exchanger

A method for liquefying a hydrocarbon stream using a heat exchanger having a plurality of plates parallel to each other and to a longitudinal direction that is substantially vertical, the exchanger having a length measured in the longitudinal direction, the plates being stacked with spacing so as to define between them at least one first series of passages for the flow of at least part of a two-phase cooling stream vaporizing by exchanging heat with at least the hydrocarbon stream.

Method for liquefying natural gas with improved circulation of a mixed refrigerant stream

The invention relates to a heat exchanger for vaporizing a coolant fluid by heat exchange with a calorigenic fluid, said exchanger comprising several parallel plates defining a plurality of passages between them which are suitable for the coolant fluid or calorigenic fluid to flow, a first wave and a second wave extending between two successive plates so as to define a plurality of channels within the same passage, said first and second waves comprising two adjacent edges, at least one assembly member extending from one edge to the other so as to connect the waves to one another. According to the invention, the assembly member is forcibly engaged in at least one part of a channel of the first wave on one hand, and in at least one part of a channel of the second wave on the other hand.

Heat exchanger with improved wave junction, associated installation of air separation and method for manufacturing such an exchanger

A heat exchanger with several plates arranged in parallel is provided. The heat exchanger has a first series of passages for channeling at least one first fluid and a second series of passages for channeling at least one second fluid. The second fluid being in a heat-exchange relationship with at the first fluid. A mixer is arranged in the passage of the first series. The mixer has at least one first channel for the flow of a first phase of the first fluid in a flow direction. The mixer has at least one second channel for the flow of a second phase of the first fluid. The mixer has at least one opening fluidically connecting the first channel to the second channel.

Heat exchanger with liquid/gas mixer device having openings with an improved shape

Heat exchanger with plates comprising a first series of passages for conducting at least one frigorigenic fluid and a second series of passages for conducting at least one calorigenic fluid, each passage being defined between two successive plates and extending parallel to a longitudinal axis, at least one mixing device arranged in at least one passage of the first series, said mixing device being configured to receive a liquid phase and a gaseous phase of the frigorigenic fluid and to distribute a mixture of said phases into said at least one passage. According to the invention, at least one passage of the second series adjacent to said at least one passage of the first series comprises a heat exchange structure divided in the longitudinal direction into at least a first portion and a second portion which are juxtaposed along the longitudinal axis, the second portion extending facing at least part of the mixing device, and being configured so as to present a heat exchange coefficient which is lower than the heat exchange coefficient of the first portion.

Heat exchanger comprising a device for distributing a liquid/gas mixture

The invention relates to a column for separating air by means of cryogenic distillation, said column comprising a shell and at least four distillation segments, including at least a first intermediate distillation segment of the low-pressure column, which is surrounded by an auxiliary shell around which a space is defined that is divided into a lower section and an upper section along the radius of the column, the intermediate segment(s) being located in an intermediate part of the low-pressure column, the capacity of the first intermediate segment being greater than that of at least one adjacent segment, and an opening being disposed in the shell between two adjacent segments, which opening can be sealed if the column is to form part of an argon production device.

Column for separating air by cryogenic distillation, air separation device comprising such a column and method for producing such a column

A method and apparatus for producing carbon monoxide by cryogenic distillation is presented.

Method and apparatus for producing carbon monoxide by cryogenic distillation using a distillation column system supplied with a mixture of which the main components are at least hydrogen and carbon monoxide

A method and an apparatus for producing carbon dioxide by cryogenic distillation is provided.

Method and apparatus for producing carbon monoxide by cryogenic distillation

A process and to an apparatus for the generation and separation of a mixture of hydrogen and carbon monoxide is provided.

Process for generating and separating a hydrogen-carbon monoxide mixture by cryogenic distillation

The invention relates to a method for separating a mixture comprising at least carbon monoxide, hydrogen, and methane. According to said method, the mixture is separated by a first separating means, at least one liquid fraction of the chamber of the separating means is sent to a product stripper, and at least part of the liquid fraction is sent from the product stripper to a CO/CHseparating column in order to produce a methane-enriched liquid flow and a gaseous flow enriched with carbon monoxide. The process is carried out under cold conditions at least partially as a result of a carbon monoxide cycle, said cycle at least partially ensuring the condensation at the top of the CO/CHseparating column and/or the reboiling in the chamber of the product stripper and/or the reboiling in the chamber of the CO/CHseparating column and/or the cooling of the mixture for the first separating means.

Method for separating a mixture of carbon monoxide, methane, hydrogen and optionally nitrogen by cryogenic distillation

A method for generating and purifying syngas and to an apparatus for generating and purifying syngas is presented.

Process and apparatus for generating and purifying a syngas

A storage enclosure and an apparatus and method for producing carbon monoxide and/or hydrogen by means of cryogenic separation, including one such enclosure is provided.

Storage enclosure, method and apparatus for producing carbon monoxide and/or hydrogen by means of cryogenic separation, including one such enclosure

A method for purifying or separating a gas mixture comprising at least one fuel, using a unit having at least one adsorber subjected to a pressure cycle comprising at least one step of placing under vacuum by means of a vacuum pump, wherein at least one adsorber and/or the vacuum pump, depressurized during the cycle, is repressurized at least partly by an external gas to said unit and not containing a sufficient quantity of oxidizer to create an inflammable mixture during this repressurization.

Repressurization of a VSA treating a gas mixture comprising a fuel

The invention relates to a method for producing carbon monoxide consisting, during an adsorption step, in using N adsorbers (A,B), wherein N is equal to greater than two, each of which follows, at an offset; the same period T cycle during which adsorption and regeneration phases succeed each other, in exposing, at the beginning of the adsorption phase, each adsorber to an eluting phase during which only a part of a nominal flowrate of the mixture is transferred to the adsorber until said adsorber is substantially carbon monoxide saturated while at least the second adsorber is maintained in the adsorption phase and a purified gaseous mixture is partially liquefied for producing a liquefied gaseous mixture, in storing said mixture in a capacity () and in transferring the liquefied gaseous mixture from the capacity to at least one column () for the separation thereof into a carbon monoxide rich product and, during at least one part of the adsorber eluting phases, the liquid level in the container is decreased and during at lest one part of the cycle outside of the eluting periods, said level is increased.

Growing community of inventors

Champigny sur Marne, France

Natacha Haik-Beraud