ClassID:

160427

F25J2220/44 - CPC Classification

Classification description:

Processes or apparatus involving steps for the removal of impurities Separating high boiling, i.e. less volatile components from nitrogen, e.g. CO, Ar, O, hydrocarbons

Recent Application in this class:
#1
20210364229
2021-11-25

Systems and Methods of Removing Contaminants in a Liquid Nitrogen Stream Used to Liquefy Natural Gas

#2
20180340731
2018-11-29

Method for Recycling Streams in a Separations Process

#3
20170038137
2017-02-09

METHOD FOR THE PRODUCTION OF LIQUEFIED NATURAL GAS AND NITROGEN

#4
20170038132
2017-02-09

Methods and systems for integration of industrial site efficiency losses to produce LNG and/or LIN

#5
20170016668
2017-01-19

Increasing efficiency in an LNG production system by pre-cooling a natural gas feed stream

#6
20170016667
2017-01-19

Liquefied natural gas production system and method with greenhouse gas removal

#7
20170003071
2017-01-05

PURIFYING CRYOGENIC FLUIDS

#8
20160200446
2016-07-14

On-board aircraft nitrogen enriched air and cooling fluid generation system and method

#9
20160187060
2016-06-30

Method and device for discharging components that are less volatile than oxygen from an air separation plant

#10
20160138865
2016-05-19

Method and apparatus for separating a liquefiable gas mixture

#11
20160116210
2016-04-28

Method and system of controlling a temperature within a melt tray assembly of a distillation tower

#12
20160084571
2016-03-24

Purification of argon through liquid phase cryogenic adsorption

#13
20110259047
2011-10-27

Method and apparatus for producing nitrogen by cryogenic distillation of air

#14
20110209497
2011-09-01

System of carbon capture and sequestration

#15
20110036121
2011-02-17

Refrigerant composition control

#16
20100206711
2010-08-19

Method for concentrating nitrogen isotope

#17
20100084256
2010-04-08

System and method of carbon capture and sequestration

#18
20060130519
2006-06-22

Small-scale gas liquefier