ClassID:

160318

F25J3/066 - 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 partial condensation characterised by the separated product stream separation of nitrogen

Recent Application in this class:
#1
20260036367
2026-02-05

SYSTEMS AND METHODS FOR REMOVING NITROGEN DURING LIQUEFACTION OF NATURAL GAS

#2
20250044022
2025-02-06

CO2 Separation Systems and Methods

#3
20240208813
2024-06-27

METHOD FOR SEPARATING HYDROGEN AND NITROGEN FROM CRACKED AMMONIA

#4
20230168029
2023-06-01

REFRIGERANT AND NITROGEN RECOVERY

#5
20210270524
2021-09-02

Systems and related methods for separating nitrogen from a natural gas stream containing less than 25% nitrogen

#6
20210140710
2021-05-13

SYSTEMS AND METHODS FOR REMOVING NITROGEN DURING LIQUEFACTION OF NATURAL GAS

#7
20190293348
2019-09-26

Nitrogen production method and nitrogen production apparatus

#8
20190170436
2019-06-06

Highly cost effective technology for capture of industrial emissions without reagent for clean energy and clean environment applications

#9
20180328659
2018-11-15

METHODS FOR RECOVERING NITROGEN FROM PROCESS GAS STREAMS

#10
20180328658
2018-11-15

METHODS FOR PRODUCING PRESSURIZED ALKENE GAS

#11
20180328656
2018-11-15

METHODS FOR RECOVERING ALKENES FROM PROCESS GAS STREAMS

#12
20180238618
2018-08-23

PRODUCTION OF HELIUM FROM A GAS STREAM CONTAINING HYDROGEN

#13
20180120007
2018-05-03

Gas recovery system, compressor system, and refrigeration cycle system

#14
20180100696
2018-04-12

Facility and method for producing liquid helium

#15
20180031315
2018-02-01

Carbon Dioxide Capture from Flu Gas

#16
20170284737
2017-10-05

Integrated nitrogen removal in the production of liquefied natural gas using intermediate feed gas separation

#17
20170241707
2017-08-24

Method for the capture of carbon dioxide through cryogenically processing gaseous emissions from fossil-fuel power generation

#18
20160123662
2016-05-05

Method and device for oxygen production by low-temperature separation of air at variable energy consumption

#19
20150121953
2015-05-07

PROCESS FOR RELIQUEFYING A METHANE-RICH FRACTION

#20
20140238076
2014-08-28

Nitrogen rejection unit

#21
20130291720
2013-11-07

Systems and methods for recovering hydrocarbons from a polyolefin purge gas product

#22
20130125581
2013-05-23

Ethylene expansion for low temperature refrigeration in polyethylene vent recovery

#23
20130036764
2013-02-14

Apparatus and process for the separation of gases using supersonic expansion and oblique wave compression

#24
20130000349
2013-01-03

APPARATUS AND METHODS FOR THE RECOVERY OF HYDROCARBONACEOUS AND ADDITIONAL PRODUCTS FROM OIL SHALE AND SANDS VIA MULTI-STAGE CONDENSATION

#25
20120279227
2012-11-08

Method for the capture and disposal of carbon dioxide in an energy conversion process

#26
20120036890
2012-02-16

NITROGEN REJECTION METHODS AND SYSTEMS

#27
20110226010
2011-09-22

CARBON DIOXIDE CAPTURE FROM FLUE GAS

#28
20110192191
2011-08-11

HIGH PRESSURE PHYSICAL ABSORPTION PROCESS FOR USE IN CARBON CAPTURE IN ENERGY PRODUCTION PROCESSES

#29
20100258476
2010-10-14

Apparatus for the recovery of hydrocarbonaceous and additional products from oil shale and sands via multi-stage condensation

#30
20100024471
2010-02-04

Method and system for extracting carbon dioxide by anti-sublimation at raised pressure

#31
20090035207
2009-02-05

METHOD AND DEVICE FOR SEPARATING A GAS MIXTURE

#32
20080302133
2008-12-11

Method and Device for Recovering Carbon Dioxide from Fumes

#33
20070157662
2007-07-12

Method and apparatus for producing products from natural gas including helium and liquefied natural gas

#34
20060248921
2006-11-09

Landfill gas purification and liquefaction process