ClassID:

160343

F25J2200/50 - CPC Classification

Classification description:

Processes or apparatus using separation by rectification using multiple (re-)boiler-condensers at different heights of the column

Sub-classes:
Recent Application in this class:
#1
20230251033
2023-08-10

Dual column nitrogen producing air separation unit with split kettle reboil and integrated condenser-reboiler

#2
20230235955
2023-07-27

System and Method for Separating Methane and Nitrogen with Reduced Horsepower Demands

#3
20210381763
2021-12-09

Dual column nitrogen producing air separation unit with split kettle reboil and integrated condenser-reboiler

#4
20210180864
2021-06-17

System and method for separating methane and nitrogen with reduced horsepower demands

#5
20210156613
2021-05-27

METHODS AND SYSTEMS FOR REMOVING NITROGEN FROM NATURAL GAS

#6
20200340740
2020-10-29

Single column nitrogen rejection unit with side draw heat pump reflux system and method

#7
20200318898
2020-10-08

Cryogenic air separation apparatus

#8
20200103166
2020-04-02

NITROGEN RECOVERY APPARATUS AND METHOD OF RECOVERING NITROGEN

#9
20190368811
2019-12-05

Process and apparatus for separating air using a split heat exchanger

#10
20190331419
2019-10-31

System and method for enhanced recovery of argon and oxygen from a nitrogen producing cryogenic air separation unit

#11
20190293348
2019-09-26

Nitrogen production method and nitrogen production apparatus

#12
20190219328
2019-07-18

Heat exchange mechanism for removing contaminants from a hydrocarbon vapor stream

#13
20190136141
2019-05-09

Apparatus for separation and recovery of hydrocarbons from LNG

#14
20190128600
2019-05-02

Method and apparatus for separating hydrocarbons

#15
20190056176
2019-02-21

Process and device for the cryogenic separation of synthesis gas

#16
20190041128
2019-02-07

Recovery Of Helium From Nitrogen-Rich Streams

#17
20180202713
2018-07-19

Method and system for cooling and separating a hydrocarbon stream

#18
20180106535
2018-04-19

Heat exchangers for low temperature carbon dioxide separation from natural gas

#19
20170370640
2017-12-28

Reducing refrigeration and dehydration load for a feed stream entering a cryogenic distillation process

#20
20170234612
2017-08-17

Treatment of nitrogen-rich natural gas streams

#21
20170045291
2017-02-16

METHOD FOR PURIFYING, COOLING AND SEPARATING A GASEOUS MIXTURE AND ASSOCIATED APPARATUS

#22
20160370109
2016-12-22

Method for producing a flow rich in methane and a flow rich in C2hydrocarbons, and associated installation

#23
20160245586
2016-08-25

Method and device for separating air by cryogenic distillation

#24
20160187061
2016-06-30

Accumulation and melt tray assembly for a distillation tower

#25
20160187058
2016-06-30

Ethane recovery methods and configurations

#26
20160138864
2016-05-19

Liquid collection system

#27
20160138863
2016-05-19

Heat exchange mechanism for removing contaminants from a hydrocarbon vapor stream

#28
20160116210
2016-04-28

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

#29
20160010917
2016-01-14

Method and system for separating fluids in a distillation tower

#30
20150300735
2015-10-22

Method and system for starting up a distillation tower

#31
20150184932
2015-07-02

Process for recovering hydrocarbons from crude carbon dioxide fluid

#32
20150159947
2015-06-11

Method and device for separating hydrocarbons and contaminants with a heating mechanism to destabilize and/or prevent adhesion of solids

#33
20150159946
2015-06-11

Method and system of modifying a liquid level during start-up operations

#34
20150159945
2015-06-11

Method of removing solids by modifying a liquid level in a distillation tower

#35
20150159944
2015-06-11

Method and device for separating a feed stream using radiation detectors

#36
20150159943
2015-06-11

Method and device for separating hydrocarbons and contaminants with a spray assembly

#37
20150159941
2015-06-11

Method and system for preventing accumulation of solids in a distillation tower

#38
20150159940
2015-06-11

Method and system of dehydrating a feed stream processed in a distillation tower

#39
20150159939
2015-06-11

Method and system of maintaining a liquid level in a distillation tower

#40
20150158796
2015-06-11

Method and system for separating a feed stream with a feed stream distribution mechanism

#41
20150114033
2015-04-30

Purification of carbon dioxide

#42
20150114032
2015-04-30

Purification of carbon dioxide

#43
20130219959
2013-08-29

Process and apparatus for the separation of air by cryogenic distillation

#44
20130219956
2013-08-29

He-3 recovery from natural helium by distillation

#45
20130074542
2013-03-28

SYSTEM AND METHOD FOR RECOVERING NATURAL GAS LIQUIDS WITH AUTO REFRIGERATION SYSTEM

#46
20130047666
2013-02-28

METHOD AND DEVICE FOR OBTAINING PRESSURIZED NITROGEN AND PRESSURIZED OXYGEN BY LOW-TEMPERATURE SEPARATION OF AIR

#47
20120285196
2012-11-15

PROCESS AND APPARATUS FOR SEPARATION OF NITROGEN FROM LNG

#48
20120103010
2012-05-03

System and method for producing LNG from contaminated gas streams

#49
20120042690
2012-02-23

LNG facility with integrated NGL recovery for enhanced liquid recovery and product flexibility

#50
20120000246
2012-01-05

Liquefied natural gas and hydrocarbon gas processing

#51
20110277500
2011-11-17

Nitrogen removal from natural gas

#52
20110239701
2011-10-06

METHOD OF REJECTING NITROGEN FROM A HYDROCARBON STREAM TO PROVIDE A FUEL GAS STREAM AND AN APPARATUS THEREFOR

#53
20110146344
2011-06-23

Process and apparatus for the separation of air by cryogenic distillation

#54
20110048067
2011-03-03

Natural gas liquefaction method with high-pressure fractionation

#55
20110041550
2011-02-24

PROCESS AND APPARATUS FOR THE SEPARATION OF LIGHT-BOILING COMPONENTS FROM HYDROCARBON MIXTURES

#56
20110005273
2011-01-13

Method for producing a flow rich in methane and a flow rich in C hydrocarbons, and associated installation

#57
20100326134
2010-12-30

Hydrocarbon gas processing including a single equipment item processing assembly

#58
20100287985
2010-11-18

Liquefied Natural Gas And Hydrocarbon Gas Processing

#59
20100011809
2010-01-21

Ethane recovery methods and configurations

#60
20090301132
2009-12-10

Optimized heavies removal system in an LNG facility

#61
20090266107
2009-10-29

Integrated controlled freeze zone (CFZ) tower and dividing wall (DWC) for enhanced hydrocarbon recovery

#62
20090221864
2009-09-03

High Ethane Recovery Configurations And Methods In LNG Regasification Facility

#63
20090211296
2009-08-27

METHOD AND APPARATUS FOR SEPARATING A FRACTION RICH IN C2+ FROM LIQUEFIED NATURAL GAS

#64
20090211263
2009-08-27

Apparatus and method for regasification of liquefied natural gas

#65
20090178408
2009-07-16

Thermal integration of oxygen plants

#66
20090071191
2009-03-19

Cryogenic air separation process with excess turbine refrigeration

#67
20080302650
2008-12-11

Process to recover low grade heat from a fractionation system

#68
20080110203
2008-05-15

Cryogenic process system with extended bonnet filter

#69
20070245771
2007-10-25

Dual stage nitrogen rejection from liquefied natural gas

#70
20070095100
2007-05-03

Cryogenic air separation process with excess turbine refrigeration

#71
20070012072
2007-01-18

LNG FACILITY WITH INTEGRATED NGL EXTRACTION TECHNOLOGY FOR ENHANCED NGL RECOVERY AND PRODUCT FLEXIBILITY

#72
20060277943
2006-12-14

Process and apparatus for separation of hydrocarbons from liquefied natural gas

#73
20060260358
2006-11-23

Gas separation liquefaction means and processes

#74
20060131218
2006-06-22

Method for recovery of natural gas liquids for liquefied natural gas

#75
20060130521
2006-06-22

Method for recovery of natural gas liquids for liquefied natural gas

#76
20060130520
2006-06-22

Method for recovery of natural gas liquids for liquefied natural gas

#77
20060075779
2006-04-13

Process for the cryogenic distillation of air

#78
20060042312
2006-03-02

Process for extracting ethane and heavier hydrocarbons from LNG

#79
20060032269
2006-02-16

Hydrocarbon gas processing