F25J2200/94 - CPC Classification Index

#1

20250251189

2025-08-07

System and Method for Separating Nitrogen from Methane with Ultra-Low Greenhouse Gas Emissions

#2

20230043513

2023-02-09

PROCESS AND PLANT FOR PROVISION OF OXYGEN PRODUCT

#3

20230038170

2023-02-09

PROCESS AND PLANT FOR LOW-TEMPERATURE SEPARATION OF AIR

#4

20230021328

2023-01-26

HYDROCARBON GAS PROCESSING

#5

20220260311

2022-08-18

ALTERNATIVE TWO COLUMN HRU DESIGN WITH RICH REFLUX

#6

20220146196

2022-05-12

SYSTEM AND METHOD FOR FLEXIBLE RECOVERY OF ARGON FROM A CRYOGENIC AIR SEPARATION UNIT

#7

20220146195

2022-05-12

METHOD FOR FLEXIBLE RECOVERY OF ARGON FROM A CRYOGENIC AIR SEPARATION UNIT

#8

20210396465

2021-12-23

MIXED REFRIGERANT SYSTEM FOR NATURAL GAS PROCESSING

#9

20210115338

2021-04-22

Hydrocarbon gas processing

#10

20210055048

2021-02-25

PROCESS AND APPARATUS FOR PRODUCTION OF CARBON MONOXIDE BY PARTIAL CONDENSATION

#11

20200378682

2020-12-03

USE OF DENSE FLUID EXPANDERS IN CRYOGENIC NATURAL GAS LIQUIDS RECOVERY

#12

20200355431

2020-11-12

Impurity control for a high pressure COpurification and supply system

#13

20200355430

2020-11-12

Impurity control for a high pressure COpurification and supply system

#14

20200072547

2020-03-05

System and method for separating natural gas liquid and nitrogen from natural gas streams

#15

20200064064

2020-02-27

System and Method for Natural Gas Liquid Production with Flexible Ethane Recovery or Rejection

#16

20200003490

2020-01-02

Mixing and heat integration of melt tray liquids in a cryogenic distillation tower

#17

20190390900

2019-12-26

Gas liquefaction column

#18

20190293348

2019-09-26

Nitrogen production method and nitrogen production apparatus

#19

20190242646

2019-08-08

Method and apparatus for obtaining pressurized nitrogen by cryogenic separation of air

#20

20190204009

2019-07-04

System and method for flexible recovery of argon from a cryogenic air separation unit

#21

20190128601

2019-05-02

Process and plant for the combination production of a mixture of hydrogen and nitrogen and also of carbon monoxide by cryogenic distillation and cryogenic scrubbing

#22

20190056176

2019-02-21

Process and device for the cryogenic separation of synthesis gas

#23

20180298292

2018-10-18

CYROGENIC SEPARATION OF LIGHT OLEFINS AND METHANE FROM SYNGAS

#24

20180266757

2018-09-20

Alternative two column HRU design with rich reflux

#25

20180231306

2018-08-16

System and method for separating natural gas liquid and nitrogen from natural gas streams

#26

20180202713

2018-07-19

Method and system for cooling and separating a hydrocarbon stream

#27

20180080710

2018-03-22

System and method for cryogenic purification of a feed stream comprising hydrogen, methane, nitrogen and argon

#28

20180080709

2018-03-22

System and method for cryogenic purification of a feed stream comprising hydrogen, methane, nitrogen and argon

#29

20180080708

2018-03-22

System and method for cryogenic purification of a feed stream comprising hydrogen, methane, nitrogen and argon

#30

20180017322

2018-01-18

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

#31

20170370641

2017-12-28

SYSTEMS AND METHODS FOR REMOVAL OF NITROGEN FROM LNG

#32

20170370640

2017-12-28

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

#33

20170205142

2017-07-20

Method for obtaining an air product in an air separation plant and air separation plant

#34

20170045290

2017-02-16

Helium recovery from streams containing helium, carbon dioxide, and at least one of nitrogen and methane

#35

20160377341

2016-12-29

HYDROCARBON GAS PROCESSING FEATURING A COMPRESSED REFLUX STREAM FORMED BY COMBINING A PORTION OF COLUMN RESIDUE GAS WITH A DISTILLATION VAPOR STREAM WITHDRAWN FROM THE SIDE OF THE COLUMN

#36

20160153710

2016-06-02

Cryogenic separation of synthesis gas

#37

20160040930

2016-02-11

Cryogenic system for removing acid gases from a hydrocarbon gas stream

#38

20150300733

2015-10-22

Nitrogen removal with ISO-pressure open refrigeration natural gas liquids recovery

#39

20140260420

2014-09-18

Flexible NGL recovery methods and configurations

#40

20140130541

2014-05-15

Nitrogen removal with ISO-pressure open refrigeration natural gas liquids recovery

#41

20130213088

2013-08-22

Systems and methods for separating hydrocarbons using one or more dividing wall columns

#42

20130074542

2013-03-28

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

#43

20120125043

2012-05-24

CRYOGENIC SYSTEM FOR REMOVING ACID GASES FROM A HYDROCARBON GAS STREAM

#44

20110257276

2011-10-20

Process and apparatus for the production of hydrocarbon compounds from methane

#45

20110167868

2011-07-14

Hydrocarbon gas processing

#46

20110138853

2011-06-16

Process for generating and separating a hydrogen-carbon monoxide mixture by cryogenic distillation

#47

20110067443

2011-03-24

Hydrocarbon Gas Processing

#48

20110067442

2011-03-24

Hydrocarbon gas processing featuring a compressed reflux stream formed by combining a portion of column residue gas with a distillation vapor stream withdrawn from the side of the column

#49

20110067441

2011-03-24

Hydrocarbon Gas Processing

#50

20110041552

2011-02-24

Apparatus And Method For Separating Air By Cryogenic Distillation

#51

20100251765

2010-10-07

Cryogenic Separation of Synthesis Gas

#52

20100242537

2010-09-30

PROCESS AND APPARATUS FOR CRYOGENIC AIR SEPARATION

#53

20100223950

2010-09-09

Nitrogen removal with iso-pressure open refrigeration natural gas liquids recovery

#54

20100199717

2010-08-12

Method and system for the separation of a mixture containing carbon dioxide, hydrocarbon and hydrogen

#55

20100108487

2010-05-06

Dividing wall column with a heat pump

#56

20100011810

2010-01-21

NGL Recovery Methods and Configurations

#57

20090120128

2009-05-14

Low Temperature Air Fractionation with External Fluid

#58

20090107177

2009-04-30

PROCESS AND DEVICE FOR LOW TEMPERATURE AIR FRACTIONATION

#59

20080289362

2008-11-27

PROCESS AND APPARATUS FOR LOW-TEMPERATURE AIR FRACTIONATION

#60

20080141712

2008-06-19

Integrated olefin recovery process

#61

20070204652

2007-09-06

PROCESS AND APPARATUS FOR PRODUCING ULTRAPURE OXYGEN

#62

20070199865

2007-08-30

Method for cold supply to the low-temperature separation stage of an olefin plant

#63

20070151291

2007-07-05

Method and installation for producing carbon monoxide by cryogenic distillation

#64

20070044507

2007-03-01

Process for the recovery of krypton and/or xenon by low-temperature separation of air

#65

20060254311

2006-11-16

Process and installation for supplying gaseous carbon monoxide and/or a gaseous mixture containing at least 10% carbon monoxide

#66

20060074132

2006-04-06

Process and apparatus for the production of hydrocarbon compounds from methane

#67

20060021380

2006-02-02

Method and installation for production of noble gases and oxygen by means of cryrogenic air distillation

#68

20050232854

2005-10-20

Method and installation for separating a mixture of hydrogen and carbon monoxide