公开(公告)号：EP2147270A2

公开(公告)日：2010-01-27

申请号：EP08805696.5

申请日：2008-04-23

申请人： L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude

发明人： BILLY, Jean ,  HERNANDEZ, Antoine ,  KHY, Marie-Khuny

IPC分类号： F25J3/02

CPC分类号： F25J3/0233 ,  F25J3/0223 ,  F25J3/0252 ,  F25J3/0271 ,  F25J2200/70 ,  F25J2200/72 ,  F25J2205/30 ,  F25J2210/06 ,  F25J2215/02 ,  F25J2215/04 ,  F25J2230/24 ,  F25J2235/02 ,  F25J2245/02 ,  F25J2270/12 ,  F25J2270/14 ,  F25J2270/20 ,  F25J2270/24 ,  F25J2270/30 ,  F25J2270/42 ,  F25J2270/50 ,  F25J2270/58 ,  F25J2270/60 ,  F25J2290/34

摘要： The invention relates to a method for separating by cryogenic distillation a mixture containing hydrogen, methane and carbon monoxide, in which the mixture is cooled down and at least a portion is fed into a liquid-CO scrubbing column (5), a head gas (7) of the scrubbing column is collected, the liquid of the scrubbing column tank is fed, optionally after purification, to a CO/CH4 separation column (33), a CO-rich liquid (47, 59) is collected from the CO/CH4 separation column, then pressurised (49) and fed to the head of the scrubbing column, a cycle is used for providing at least a portion of the frigories, and a methane-rich liquid (39) is collected at the tank of the CO/CH4 separation column as the end product (45).

公开(公告)号：EP4174214A1

公开(公告)日：2023-05-03

申请号：EP21020527.4

申请日：2021-10-26

申请人： L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude

发明人： KHY, Marie-Khuny ,  BUTLER, Maxime ,  PORTIER, Marie

IPC分类号： C25B1/04 ,  C25B15/08 ,  C25B9/77

摘要： The invention relates to an electrolysis arrangement for alkaline electrolysis and a method for producing hydrogen and oxygen by electrolysis of an alkaline electrolysis medium. According to the invention, an anolyte deaerating means is arranged downstream of an anolyte gas-liquid separator and is arranged upstream of the electrolysis cell stack of the electrolysis arrangement, and/or a catholyte deaerating means is arranged downstream of a catholyte gas-liquid separator and arranged upstream of the electrolysis cell stack of the electrolysis arrangement. By this arrangement, the fact is exploited that many undesirable gas components have a much lower solubility in the alkaline electrolysis medium than in pure deionised water, which is supplied as fresh water to the electrolysis arrangement for compensation of the water consumed by the electrochemical reaction.

公开(公告)号：EP2147270B1

公开(公告)日：2019-11-06

申请号：EP08805696.5

申请日：2008-04-23

申请人： L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude

发明人： BILLY, Jean ,  HERNANDEZ, Antoine ,  KHY, Marie-Khuny

IPC分类号： F25J3/02

公开(公告)号：EP1993690A2

公开(公告)日：2008-11-26

申请号：EP07731593.5

申请日：2007-02-09

申请人： L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude

发明人： KHY, Marie-Khuny

IPC分类号： B01D3/22 ,  C01B3/56

CPC分类号： B01D53/22 ,  B01D2311/14 ,  C01B3/501 ,  C01B2203/048

摘要： The invention relates to a method of treating a gas comprising at least hydrogen and at least one other compound by means of a hydrogen-permeable separation membrane, in which the gas to be treated is brought into contact with the membrane so as to produce a hydrogen-enriched permeate and a hydrogen-depleted retentate. The differential pressure across the membrane is adjusted so that the ratio R of formula: in which Qr represents the flow rate of the retentate, Q represents the flow rate of the gas to be treated, FH2 represents a quantity characteristic of the hydrogen concentration of the gas to be treated and n is a decimal number strictly positive or negative, is equal to or greater than the value of the radio Rmin at which at least one compound present in the retentate condenses.