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

Air Liquide Advanced Technologies U.S. LLC

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

Pascal Marty

Bernd Polster

Paul Terrien

Yong Ding

Antoine Hernandez

Marie-Pascal Victor

Alain Briglia

Natacha Haik-Beraud

Bhadri Prasad

Arthur Darde

Richard Dubettier-Grenier

Mathieu Leclerc

Jean-Marc Tsevery

Thomas Morel

Nicolas Chambron

Pierre Costa De Beauregard

Catherine Denis

Pierre-Robert Gauthier

Angela Fernandez

Michel-Jean Masson

Laurent Remy

Emmanuelle Brocheriou

Jean-Jacques Talbot

A process for purifying a gaseous feed stream of natural gas including methane, COand heavy hydrocarbons including step a): cooling the gaseous feed stream in a heat exchanger; step b): introducing the cooled stream into a phase-separating chamber to produce a liquid stream depleted in methane and enriched in heavy hydrocarbons and a gaseous stream; step c): separating the gaseous stream obtained from step b) in a first membrane producing at least one CO-enriched permeate stream and a residual stream enriched in methane; step d): introducing the residual stream obtained from step c) into a phase-separator to produce a liquid stream and a gaseous stream; step e): heating the gaseous stream obtained from step d) by introducing it into the heat exchanger used in step a) counter-currentwise with the feed stream thereby producing a gaseous stream depleted in COand enriched in methane.

Method for purifying natural gas using an economizer

Natural gas liquefaction process in combination with a synthesis gas production process, where the steam derived from the synthesis gas production process is used as a heating source for the implementation of the pre-treatment step for eliminating the impurities liable to freeze during the natural gas liquefaction process.

Synthesis gas production process for the implementation of a natural gas liquefaction

A process for purifying a feed gas including methane and heavy hydrocarbons, including: step a): cooling the feed gas in a heat exchanger; step b): introducing the resulting into a first phase separator to produce a liquid stream depleted in methane and enriched in heavy hydrocarbons and a gas stream; step c): separating the gas stream in a membrane from which a methane-enriched permeate stream and a partially condensed residue stream exit; step d): introducing the residue stream from step c) into a second phase separator vessel in order to produce a liquid stream and a gas stream; step e): introducing at least one portion of the gas stream resulting from step d) into a JT expansion means; and step f): heating at least one portion of the expanded stream in the heat exchanger used in step a) counter-current to the feed stream in order to cool the latter.

Method for separating a natural gas stream into a methane-enriched fraction and a fraction enriched in Cand higher hydrocarbons

A process for purifying a natural gas feed gas stream including methane and hydrocarbons, including step a): cooling the feed gas stream; step b): introducing the cooled stream into a first phase separator vessel in order to produce a liquid stream and a gas stream; step c): separating the gas stream resulting from step b) in a membrane unit from which a methane-enriched permeate stream and one partially condensed residue stream enriched in hydrocarbons exit; step d): introducing the residue stream resulting from step c) into a second phase separator vessel to produce a liquid stream and a gas stream; step e): introducing at least one portion of the liquid stream resulting from step d) into a JT expansion means; step f): heating at least one portion of the expanded by introduction into the heat exchanger used in step a) counter-current to the feed stream.

Method for purifying a natural gas stream

The invention relates to an apparatus for cryogenic separation of a mixture of carbon monoxide, hydrogen and nitrogen, including a stripping column and a denitrogenation column, a pipe for sending the mixture in liquid form to the head of the stripping column, a pipe for removing a liquid depleted of hydrogen connected to the stripping column, a pipe for removing a gas enriched with hydrogen from the stripping column, means for sending the liquid depleted of hydrogen or a fluid derived from said liquid to the denitrogenation column, a pipe for drawing a liquid enriched with carbon monoxide from the denitrogenation column, a pipe for drawing a gas enriched with nitrogen from the head of the denitrogenation column and means for sending at least one portion of the gas enriched with hydrogen to the denitrogenation column.

Method and apparatus for cryogenic separation of a mixture containing at least carbon monoxide, hydrogen and nitrogen

The invention relates to a method for treating a mixture in order to separate carbon dioxide and hydrogen from said mixture, in which: i) the mixture is cooled and partially condensed and a first liquid is separated from the rest of the mixture in a first phase separator; ii) a gas from or derived from a gas from the first phase separator is treated in a hydrogen pressure swing adsorption module in order to produce a hydrogen-rich gas and a hydrogen-depleted residual gas; and iii) said hydrogen-depleted residual gas or a gas derived from said depleted gas is cooled and partially condensed and a second liquid is separated from the remaining gas in a second phase separator, separate from the first phase separator, wherein the first and/or second liquid being rich in carbon dioxide. The invention also relates to an installation for implementing such a method.

Treatment method for separating carbon dioxide and hydrogen from a mixture

In a process for the cryogenic separation of a feed mixture of at least carbon monoxide, hydrogen and methane, the feed mixture is separated in a methane wash column fed by a liquid methane stream at the top of the methane wash column to produce a gas enriched in hydrogen, a liquid stream from the bottom of the methane wash column is treated to produce a mixture of carbon monoxide and methane, the mixture of carbon monoxide and methane is separated in a separation column to produce a gas enriched in carbon monoxide and a liquid methane flow at least part of which forms a purge stream, the purge stream being varied to take account of load variations.

Process and apparatus for the separation by cryogenic distillation of a mixture of methane, carbon dioxide and hydrogen

The present invention concerns a process for producing synthesis gas by steam reforming a hydrocarbon load in a reforming furnace provided with a combustion chamber and a convection chamber; the combustion chamber includes vertical tubes filled with catalyst wherein a mixture of hydrocarbons and steam circulates from top to bottom recovering raw synthesis gas at the bottom of the tubes, and burners disposed in rows heat the tubes; the convection chamber discharges fumes containing the gases produced by the combustion. The process also comprises steps of using the heat contained in the fumes for preheating and/or heating various fluids related or unrelated to the process. In the event of the reduction of the mass flow of fumes, the quantity of energy to be transferred into the convection area is maintained by supplying a supplementary gaseous flow to the combustion area.

Process for producing synthesis gas with preservation of the energy transfer by means of the fumes

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

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

The present invention relates to a process and a plant for the treatment of the vented gas mixture from a deaerator of a steam production process associated with a hydrocarbon-reforming syngas production process.

Process for utilizing the vented gas mixture from a deaerator associated with a syngas production unit and plant for its implementation

A process for separating a gas mixture in a separation unit of the type in which the gas mixture comes from a reaction unit and comprises, as main constituents, hydrogen (H) and/or carbon monoxide (CO).

Method of separating a syngas containing hydrogen and carbon monoxide but also at least carbon dioxide and water vapor

The invention concerns a method for combined production of hydrogen and carbon dioxide from a mixture of hydrocarbons wherein the residual PSA is treated to produce a carbon dioxide-enriched fluid, and wherein: the residual PSA is compressed to a pressure such that the partial pressure of the CO&#x3c;SUB&#x3e;2&#x3c;/SUB&#x3e; contained ranges between about 15 and 40 bar; the residue is subjected to one or more condensation/separation steps with production of CO&#x3c;SUB&#x3e;2&#x3c;/SUB&#x3e;-rich condensate(s) and a purge of noncondensable gas; the purge of noncondensable gas is preferably treated to produce a H&#x3c;SUB&#x3e;2&#x3c;/SUB&#x3e;-rich permeate which is recycled to the PSA, and a residue which is recycled to syngas generation, Preferably, the condensate(s) are purified by cryogenic distillation to produce food grade CO&#x3c;SUB&#x3e;2&#x3c;/SUB&#x3e;. The invention also concerns an installation for implementing the method.

Method and installation for combined production of hydrogen and carbon dioxide

A method for utilizing a combustible gas product collected in the seal device of a compressor of the combustible gas produce, in particular a method in which combustible gases, or gas mixtures containing combustible gases, are compressed, is provided. The method is particularly advantageous in applications in the field of the production and/or processing of synthesis gas, for producing and/or processing combustible gases or gas mixtures containing combustible gases including in particular H, CO, CH, natural gas and CO.

Method for utilizing product leaks in compressor seal systems for recovery and recycling as fuel

The invention relates to a method for simultaneously producing hydrogen and carbon monoxide consisting in generating a synthesis gas and in processing it by decarbonising and removing water and remaining carbon dioxide by passing said gas through a bed of adsorbents, in separating remaining components by forming at least one Hrich flow, a CO flow containing at least one type of impurity selected from nitrogen and argon, a methane-rich purge gas flow and a flash gas flow. The inventive method also consists in regenerating the bed of adsorbents by passing a regeneration gas comprising at least one non-zero proportion of the formed Hflow and in recycling at least the purge and flash gases for feeding the synthesis gas generation stage.

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Bry sur Marne, France

Pascal Marty