F25J3/04 - CPC Classification Index

ClassID:

160155 ⎘

F25J3/04 - CPC Classification

Classification description:

Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air

Sub-classes:

F25J3/04006 » {Providing pressurised feed air or process streams within or from the air fractionation unit } 0
F25J3/04151 » {Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams } 2
F25J3/04248 » {Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion} 5
F25J3/044 » {using a single pressure main column system only } 47
F25J3/04406 » {using a dual pressure main column system } 17
F25J3/04436 » {using at least a triple pressure main column system } 1
F25J3/0446 » {using the heat generated by mixing two different phases} 3
F25J3/04472 » {using the cold from cryogenic liquids produced within the air fractionation unit and stored in internal or intermediate storages } 1
F25J3/04521 » {Coupling of the air fractionation unit to an air gas-consuming unit, so-called integrated processes } 10
F25J3/04624 » {using integrated mass and heat exchange, so-called non-adiabatic rectification, e.g. dephlegmator, reflux exchanger} 11
F25J3/04636 » {using a hybrid air separation unit, e.g. combined process by cryogenic separation and non-cryogenic separation techniques } 23
F25J3/04642 » {Recovering noble gases from air } 6
F25J3/04763 » {Start-up or control of the process; Details of the apparatus used } 4

Recent Application in this class:

20260095051

MULTIMODAL MICROGRID SYSTEM

20200256616

Annular divided wall column

20190063828

Annular divided wall column for an air separation unit

20150211789

Condenser-reboiler system and method

20150000335

Method and apparatus for separating air by cryogenic distillation

20140360227

Method For Producing One Or More Air Separation Apparatuses, And Equipment For Air Separation By Cryogenic Distillation

20140345106

Method for installing a condenser in a remote manufacturing yard

20140318179

Process And Apparatus For The Separation Of Air By Cryogenic Distillation

20140283550

METHOD AND INSTALLATION FOR SEPARATING AIR BY CRYOGENIC DISTILLATION

20140260422

Low temperature air separation process for producing pressurized gaseous product

20140230486

Method and device for recovering high-pressure oxygen and high-pressure nitrogen

20140223960

Method and device for generating two purified partial air streams

20140223959

Method and device for the cryogenic decomposition of air

20140216105

Hybrid apparatus for drying a flow of compressed gas

20140174123

Air separation method and apparatus

20140109614

AIR SEPARATION METHOD AND APPARATUS

20140053601

Method and apparatus for separating air by cryogenic distillation

20140013798

METHOD FOR SEPARATING AIR BY MEANS OF CRYOGENIC DISTILLATION

20140007617

METHOD FOR PRODUCING A PRESSURISED AIR GAS BY MEANS OF CRYOGENIC DISTILLATION

20130219959

Process and apparatus for the separation of air by cryogenic distillation

20130152629

"Air cooling and purification apparatus intended for a cryogenic air distillation unit"

20130133364

Apparatus and process for separating air by cryogenic distillation

20130111950

COOLING UNIT, AND APPARATUS FOR SEPARATING AIR BY MEANS OF CRYOGENIC DISTILLATION INCLUDING SUCH COOLING UNIT

20090007595

Low temperature air separation process for producing pressurized gaseous product

20060010912

Low temperature air separation process for producing pressurized gaseous product