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

Other

Christian Monereau

Guillaume Rodrigues

Vincent Gueret

Philippe Andreani

Yves Engler

Pierre Petit

Elise Renou

Nathalie Derive

Arthur Darde

Serge Moreau

Pluton Pullumbi

Wilfrid Petrie

Louis Toulemonde

Jean-Pierre Tranier

Guillaume De Souza

Philippe Court

Dominique Rouge

Yudong Chen

Lian-Ming Sun

Simon Jallais

Benjamin Morineau

Vladimir Hasanov

Bao V Ha

Alain Briglia

Jean-Renaud Brugerolle

Marc Wagner

François Fuentes

Benoit Davidian

Antoine Hernandez

Edgar S Sanders, Jr

Pascal Tessier

Christophe Montfort

Maxime Perez

Bruno Alban

Guillaume De Smedt

Ivan Sanchez-Molinero

Jean-Marc Belot

Céline Carriere

Xavier Vigor

Mathieu Leclerc

Natacha Haik-Beraud

Christian Barbe

Pierre Gauthier

Ludovic Granados

Trapti Chaubey

Christophe Szamlewski

Eric Biret

Frederick Lockwood

Francois De Bussy

Bernard Fraioli

Christophe Claeys

Anne Dubois

Claire Bourhy-Weber

Philippe Merino

Jean-Claude Calviac

Anne Berthelemot

Ingrid Bellec

Yann-Pierrick Lemaire

Pierre Olivier Dolle

Francois Fuentes

Michel Poteau

David Bigot

Didier Miniscloux

Jean-Baptiste Dellon

Clotilde Muller

Itziar Urrutia

Michel Eclancher

David Frimat

Stéphane Pusiol

Christophe Sobre

Jean-Claude Aiguesparses

Marie Dehestru

Gregory Demar

Chuan-Min Zhuo

Pierre Jean Louis Petit

François Demoisy

Nicolas Siadous

Paulo Silva

Serge Phelut

Samuel Amy

Nathalie Derive-Teuscher

Fr&eacute;d&eacute;ric Despreaux

Thierry Gesbert

Alain Combier

Romain Bonay

Pierre Jeannot

Patrick Pereira

Pierre Louis Petit

A method for adjusting a gas stream separation unit having N adsorbers, where N≥2, each following a PSA, VSA or VPSA adsorption cycle, with a time lag of a phase time, said adjustment method including continuously measuring a physical parameter associated with the gas stream entering and/or leaving the adsorber; for at least one step of the adsorption cycle, determining at least one characteristic value of the step chosen in step a) which is selected from the values of the physical parameter measured in step a) or a function of those values; comparing this characteristic value with a target value; and modifying the flow of the gas stream in order to obtain the target value, in the event of a variation between the value of this (these) difference(s) and the target values.

Method for adjusting an oxygen production unit with different set points for each adsorber

The invention relates to a method for regulating a unit for separating a gas stream, having P adsorbers, where P≥2, each following a PSA-type adsorption cycle with a phase time shift, the method involving the steps of operating the unit according to the nominal cycle when the required flow rate is equal to a nominal flow rate or optionally when the required flow rate is higher than the nominal flow rate, and operating the unit according to the reduced cycle when the required flow rate is lower than or equal to a predetermined flow rate, the predetermined flow rate being lower than the nominal flow rate.

Method for regulating a unit for separating a gas stream

A gas processing vessel of cylindrical shape having a cylindrical shell of the vertical axis, a gas distribution device and a first particulate material, the distribution device being fixed in the vessel next to a gas inlet or outlet orifice recessed into a lower end wall, a cover being designed to be in contact without a weld with the lower end wall and having a diameter greater than or equal to one third of the diameter of the vessel, a second particulate material with an equivalent diameter De greater than or equal to 10 mm and greater than the dimensions of the openings in the cover, and a means for centering the cover above the inlet or outlet orifice, the means being fixed to the pipe that is connected to the orifice.

Device for distributing gas in a gas processing vessel comprising a particulate material

Certain embodiments of the invention relate to a method and facility for purifying a high-flow gas stream by absorption, the purification facility comprising at least one absorber having a parallelepipedal enclosure arranged horizontally and comprising: a gas stream inlet and outlet, two fixed-bed absorbent masses each having a likewise parallelepipedal shape, the surfaces of which are parallel to the surfaces of the enclosure, and a set of volumes allowing the traversing of the two absorbent masses by the gas streams, in parallel but opposite directions, the traversing occurring horizontally over the entire cross-section of each of the absorbent masses and over their entire thicknesses.

Method and facility for purifying a high-flow gas stream

A radial adsorber comprising: an adsorbent mass containing particles, a cylindrical shell ring extending along a longitudinal axis that is vertical when the adsorber is in operation, an external grid and an internal grid arranged in such a way as to be permeable to the gas and impermeable to the particles, the internal grid and external grid between them forming an annular volume housing the adsorbent mass, an internal chamber located between the vertical longitudinal axis and the internal grid, an external chamber located between the external grid and the shell ring, the internal chamber and external chamber being intended for the circulation of the gas, the external grid being formed by a plurality of wires and a plurality of supports, the supports being mounted transversely to the wires, the supports and the wires being mounted secured to one another.

Radial adsorber with radial circulation of gas

A unit for purifying a gas mixture by adsorption, including at least one adsorber having at least one cluster of N identical adsorbent modules operating in parallel, where N≥2, each cluster of N adsorbent modules includes a common inlet manifold having a straight inlet duct of axis Xe supplying N inlet nozzles Tei, where i ranges from 1 to N, respectively connected to the inlets Ei, where i ranges from 1 to N, of the N modules of the cluster, a common outlet manifold having a straight outlet duct of axis Xs collecting the flow leaving the N outlet nozzles Tsi, where i ranges from 1 to N, respectively connected to the outlets Si, where i ranges from 1, of the N modules of the cluster.

Adsorber with at least one cluster comprising a plurality of adsorbent modules

A process for producing a purified gas stream having impurities, using a production unit for producing a gas stream and a storage reservoir. The process includes producing a first gas stream by means of the production unit. Storing at least a portion of the first gas stream in the storage reservoir. Extracting, from the storage reservoir, a second gas stream corresponding to at least one portion of the first stream polluted by the impurities. Purifying the second gas stream by transfer of at least one portion of the impurities contained in the second gas stream into the first gas stream. And recovery of the purified gas stream at the output of the purification.

Method for producing a gaseous flow using a storage tank

A device configured to be interposed between a lower layer and an upper layer of particles arranged inside a cylindrical shell, thereby limiting or preventing the migration of particles between the layers.

Device for limiting or eliminating the migration of particles between two layers

A device configured to be interposed between a lower layer and an upper layer of particles arranged inside a cylindrical shell, so as to limit or prevent the migration of particles between the layers.

Device made of fabric for limiting or preventing the migration of particles between two layers

A process for regulating a unit for the production of oxygen from atmospheric air comprising N adsorbers (, N being = or &#x3e;2, each according to a PSA, VSA or VPSA adsorption cycle with an offset of a phase time, the regulation process including determining a value of differential pressure characteristic of a step of the adsorption cycle for each adsorber, calculating the difference between the values of differential pressures characteristic of the various adsorbers, comparing this difference with a target value and, in the event of a dissimilarity being noted, correcting by modification of the transfer of at least one oxygen-rich gas stream between adsorbers or optionally between adsorber and storage tank.

Process for regulating an oxygen production unit by comparison of the differential pressures characteristic of different adsorbers

A method for producing oxygen by adsorbing a stream of atmospheric air, using four VPSA, one air compressor and two vacuum pumps, each adsorber undergoing a single pressure cycle including the following steps: a) producing a first stream of gas having an oxygen content T1 while loading the adsorber of the stream of atmospheric air upstream; b) producing a second stream of gas including an oxygen content T2&#x3c;T1: c) producing a third stream of gas including an oxygen content T3&#x3c;T2&#x3c;T1 while simultaneously extracting a nitrogen-enriched residual stream; d) eluting the adsorber, from which the three streams of gas produced in steps a), b), and c) are taken with the second stream of gas produced in step b); e) repressurizing the adsorber consecutively with at least two streams, first and second repressurizing streams, with increasing oxygen content.

Method for producing oxygen by VPSA comprising four adsorbers

A method for producing oxygen by adsorbing a stream of atmospheric air, using a VPSA, including at least one adsorber, each adsorber undergoing a single pressure cycle including the following steps: a) producing a first stream of gas having an oxygen content T1 while loading the adsorber of the stream of atmospheric air upstream; b) producing a second stream of gas including an oxygen content T2&#x3c;T1: c) producing a third stream of gas including an oxygen content T3&#x3c;T2&#x3c;T1 while simultaneously extracting a nitrogen-enriched residual stream; d) eluting the adsorber, from which the three streams of gas produced in steps a), b), and c) are taken with the second stream of gas produced in step b); e) repressurizing the adsorber consecutively with at least two streams, first and second repressurizing streams, with increasing oxygen content.

Method for producing oxygen by VPSA

Oxygen production process of VSA type from a flow of air, implementing at least one group of at least 3 adsorbers installed in parallel and following the same VSA cycle comprising, in succession, a phase of adsorption at the high pressure of the cycle, a phase of desorption at pressures lower than the high pressure of the cycle, a phase of repressurization of the adsorber to the high pressure of the cycle, characterized in that, periodically or exceptionally: a) at least one adsorber of the group of adsorbers is isolated so as to no longer follow the pressure cycle, b) the adsorbent contained in the adsorber isolated in the step a) is regenerated by raising the temperature, and c) the adsorber regenerated in the step b) is re-incorporated in the group of adsorbers so as to once again follow the pressure cycle.

Oxygen production process of VSA type with period regeneration

A pressure swing adsorption process for producing a gas stream enriched in a compound X from a feed gas stream is provided. The process includes at least 2 adsorbers, with each adsorber being subjected to a pressure cycle having a high pressure and a low pressure. The process includes adsorption at the high pressure with production of the gas stream enriched in compound X; then depressurization; then elution at the low pressure; and finally repressurization to the high pressure. The elution gas is made up fractions of gas stream resulting from the depressurization of an adsorber and the gas stream enriched in compound X. The pressure cycle has a phase time corresponding to the duration of a pressure cycle divided by the number of adsorbers and the fraction of the gas stream enriched in compound X is determined as a function of the phase time.

Pressure swing adsorption method with additional elution

A pressure swing adsorption process for producing a gas stream enriched in a compound X from a feed gas stream is provided. The process includes at least 2 adsorbers, with each adsorber being subjected to a pressure cycle having a high pressure and a low pressure. The process includes adsorption at the high pressure with production of the gas stream enriched in compound X, depressurization to the low pressure with production of at least one portion of an elution gas, c) elution at the low pressure, and repressurization to the high pressure. The pressure cycle has a phase time corresponding to the duration of a pressure cycle divided by the number of adsorbers. The pressure of the pressure cycle is modified to keep the phase time of the PSA equal to or within &#xb1;5% of the nominal phase time.

Method of pressure swing adsorption with regulation

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Paris, France

Christian Monereau