ClassID:

160470

F25J2240/12 - CPC Classification

Classification description:

Processes or apparatus involving steps for expanding of process streams; Expansion of a process fluid in a work-extracting turbine (i.e. isentropic expansion), e.g. of the feed stream the fluid being nitrogen

Recent Application in this class:
#1
20260092734
2026-04-02

Method of Hydrogen Liquefaction Using Optimized Claude Refrigeration Cycles

#2
20250305764
2025-10-02

PROCESS FOR REMOTE LOX/LIN PRODUCTION BY HPAIR TURBO EXPANSION

#3
20250264274
2025-08-21

AIR SEPARATION UNIT

#4
20250244075
2025-07-31

HYDROGEN COOLING

#5
20250236968
2025-07-24

SYSTEM AND METHOD FOR CONTROLLING COOLING OF AN ELECTROLYZER UNIT

#6
20250121315
2025-04-17

FACILITY FOR RECOVERING CO2 FROM A FEED GAS FLOW

#7
20250060158
2025-02-20

NITROGEN GENERATING DEVICE AND NITROGEN GENERATING METHOD

#8
20250060154
2025-02-20

System and Method for Turndown of a Hydrogen Precooling and/or Hydrogen Liquefaction System

#9
20240418437
2024-12-19

Method of Hydrogen Liquefaction Using Optimized Claude Refrigeration Cycles

#10
20240393041
2024-11-28

INSTALLATION AND METHOD FOR THE LIQUEFACTION OF HYDROGEN

#11
20240384927
2024-11-21

SYSTEM AND METHOD FOR RELIQUEFACTION OF BOIL-OFF GAS OF SHIP AND SYSTEM AND METHOD FOR TREATING OFFGAS OF RELIQUEFACTION APPARATUS

#12
20240353173
2024-10-24

ULTRA-HIGH-PURITY OXYGEN PRODUCTION METHOD AND ULTRA-HIGH-PURITY OXYGEN PRODUCTION APPARATUS

#13
20240288218
2024-08-29

METHOD FOR PRODUCTION AND SUPPLY OF A DENSIFIED LIQUID OXYGEN PRODUCT FOR SPACE VEHICLE APPLICATIONS

#14
20240255219
2024-08-01

PROCESS FOR COOLING A GAS BY MEANS OF A REFRIGERATION CYCLE

#15
20240019206
2024-01-18

CRYOGENIC PROCESS FOR RECOVERING VALUABLE COMPONENTS FROM A HYDROGEN-RICH FEED GAS

#16
20230408193
2023-12-21

APPARATUS AND METHOD FOR SEPARATING AIR

#17
20230235955
2023-07-27

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

#18
20230129424
2023-04-27

SYSTEM AND METHOD TO PRODUCE LIQUEFIED NATURAL GAS

#19
20230114229
2023-04-13

SYSTEM AND METHOD TO PRODUCE LIQUEFIED NATURAL GAS

#20
20230023477
2023-01-26

METHOD AND APPARATUS FOR SEPARATING CARBON DIOXIDE FROM A RESIDUAL GAS IN A FLUIDISED BED CATALYTIC CRACKING PLANT (FCC)

#21
20220290919
2022-09-15

SYSTEM AND METHOD FOR PRECOOLING IN HYDROGEN OR HELIUM LIQUEFACTION PROCESSING

#22
20220282914
2022-09-08

Process and apparatus for the separation of air by cryogenic distillation

#23
20220128301
2022-04-28

METHOD AND APPARATUS FOR PRODUCING HIGH-PRESSURE NITROGEN

#24
20220099364
2022-03-31

OFFSHORE LIQUEFACTION PROCESS WITHOUT COMPRESSION

#25
20220074652
2022-03-10

Natural gas liquefaction by a high pressure expansion process

#26
20210348839
2021-11-11

SYSTEM AND METHOD FOR CRYOGENIC AIR SEPARATION USING A BOOSTER LOADED LIQUID TURBINE FOR EXPANSION OF A LIQUID AIR STREAM

#27
20210180864
2021-06-17

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

#28
20210156613
2021-05-27

METHODS AND SYSTEMS FOR REMOVING NITROGEN FROM NATURAL GAS

#29
20200370823
2020-11-26

System and method for small scale LNG production

#30
20200087143
2020-03-19

Plant and method for generation of synthesis gas

#31
20190308877
2019-10-10

Method and plant for generation of synthesis gas

#32
20190101328
2019-04-04

Natural Gas Liquefaction by a High Pressure Expansion Process

#33
20190101327
2019-04-04

Natural Gas Liquefaction by a High Pressure Expansion Process

#34
20180356152
2018-12-13

System and method for enhanced argon recovery from a feed stream comprising hydrogen, methane, nitrogen and argon

#35
20180180357
2018-06-28

PROCESS FOR PRODUCING ONE OR MORE AIR PRODUCTS, AND AIR SEPARATION PLANT

#36
20180142949
2018-05-24

PARTIAL OPEN-LOOP NITROGEN REFRIGERATION PROCESS AND SYSTEM FOR AN OIL OR GAS PRODUCTION OPERATION

#37
20180100696
2018-04-12

Facility and method for producing liquid helium

#38
20180080710
2018-03-22

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

#39
20180080709
2018-03-22

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

#40
20180080708
2018-03-22

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

#41
20180038643
2018-02-08

Method for the integration of liquefied natural gas and syngas production

#42
20180038642
2018-02-08

PROCESS INTEGRATION OF A GAS PROCESSING UNIT WITH LIQUEFACTION UNIT

#43
20180038638
2018-02-08

Integration of industrial gas site with liquid hydrogen production

#44
20180023888
2018-01-25

METHOD FOR RECOVERING HELIUM

#45
20170268821
2017-09-21

System and method for enhanced argon recovery from a feed stream comprising hydrogen, methane, nitrogen and argon

#46
20170241705
2017-08-24

Method and apparatus to avoid LNG flash when expanding to the LNG storage facility

#47
20170167787
2017-06-15

Method of natural gas liquefaction on LNG carriers storing liquid nitrogen

#48
20170038137
2017-02-09

METHOD FOR THE PRODUCTION OF LIQUEFIED NATURAL GAS AND NITROGEN

#49
20170038132
2017-02-09

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

#50
20150369534
2015-12-24

Natural gas isobaric liquefaction apparatus

#51
20150362250
2015-12-17

Natural gas isobaric liquefaction apparatus

#52
20130205831
2013-08-15

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

#53
20130111948
2013-05-09

Purification of Carbon Dioxide

#54
20120279227
2012-11-08

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

#55
20120213676
2012-08-23

Process for the Production of Ammonia Synthesis Gas With Improved Cryogenic Purification

#56
20120103010
2012-05-03

System and method for producing LNG from contaminated gas streams

#57
20120067082
2012-03-22

METHOD AND APPARATUS FOR PRODUCING AT LEAST ONE ARGON-ENRICHED FLUID AND AT LEAST ONE OXYGEN-ENRICHED FLUID FROM A RESIDUAL FLUID

#58
20110192191
2011-08-11

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

#59
20100251763
2010-10-07

Apparatus and Methods for Natural Gas Transportation and Processing

#60
20100192626
2010-08-05

Method and apparatus for liquefying a gaseous hydrocarbon stream

#61
20100051876
2010-03-04

PROCESS FOR THE PRODUCTION OF AMMONIA SYNTHESIS GAS WITH IMPROVED CRYOGENIC PURIFICATION

#62
20090199590
2009-08-13

METHOD AND APPARATUS FOR COMPRESSING A NATURAL GAS STREAM

#63
20090013717
2009-01-15

Process and apparatus for the separation of a gaseous mixture

#64
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

#65
20060230783
2006-10-19

Nitrogen rejection method and apparatus

#66
20060218967
2006-10-05

Integrated process and apparatus for the separation of air

#67
20060065119
2006-03-30

Electricity generation system

#68
20050139072
2005-06-30

Process to remove nitrogen and/or carbon dioxide from methane-containing streams