ClassID:

160212

F25J3/04357 - 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; Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using quasi-closed loop internal vapor compression refrigeration cycles, e.g. of intermediate or oxygen enriched (waste-)streams of nitrogen and comprising a gas work expansion loop

Recent Application in this class:
#1
20250003679
2025-01-02

AIR SEPARATION SYSTEM AND AIR SEPARATION METHOD

#2
20230221069
2023-07-13

Integrated nitrogen liquefier for a nitrogen and argon producing cryogenic air separation unit

#3
20230103843
2023-04-06

LOW-PRESSURE NITROGEN TURBINE WITH AIR BOOSTER PARALLEL TO THE BOOSTER AIR COMPRESSOR

#4
20230055205
2023-02-23

NITROGEN PRODUCING CRYOGENIC AIR SEPARATION UNIT WITH EXCESS AIR CIRCUIT

#5
20210164729
2021-06-03

Apparatus and process for liquefying gases

#6
20210071948
2021-03-11

Method and device for producing air product based on cryogenic rectification

#7
20200370825
2020-11-26

Method and apparatus for separating air by cryogenic distillation

#8
20180372404
2018-12-27

Method for liquefying natural gas and nitrogen

#9
20180335256
2018-11-22

Apparatus and process for liquefying gases

#10
20180017322
2018-01-18

Method and apparatus for producing compressed nitrogen and liquid nitrogen by cryogenic separation of air

#11
20170284735
2017-10-05

AIR SEPARATION REFRIGERATION SUPPLY METHOD

#12
20130205831
2013-08-15

Method and device for obtaining compressed oxygen and compressed nitrogen by the low-temperature separation of air

#13
20100058805
2010-03-11

Air separation refrigeration supply method

#14
20100024478
2010-02-04

PROCESS AND DEVICE FOR RECOVERING ARGON BY LOW-TEMPERATURE SEPARATION OF AIR

#15
20090320520
2009-12-31

NITROGEN LIQUEFIER RETROFIT FOR AN AIR SEPARATION PLANT

#16
20060254312
2006-11-16

Method and installation for producing, in gaseous form and under high pressure, at least one fluid chosen from oxygen, argon and nitrogen by cryogenic distillation of air

#17
20050138960
2005-06-30

Cryogenic air separation system for producing elevated pressure nitrogen

#18
17558524
2025-12-09

Apparatus and process for liquefying gases