F25J2240/44 - CPC Classification Index

ClassID:

160477 ⎘

F25J2240/44 - CPC Classification

Classification description:

Processes or apparatus involving steps for expanding of process streams; Expansion without extracting work, i.e. isenthalpic throttling, e.g. JT valve, regulating valve or venturi, or isentropic nozzle, e.g. Laval the fluid being nitrogen

Recent Application in this class:

20250251189

2025-08-07

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

20250244075

2025-07-31

HYDROGEN COOLING

20250003679

2025-01-02

AIR SEPARATION SYSTEM AND AIR SEPARATION METHOD

20240401877

2024-12-05

Nitrogen Rejection Unit System and Method for Low Nitrogen Concentration Feeds

20240288217

2024-08-29

SYSTEM AND METHOD FOR RELIQUEFYING BOIL-OFF GAS OF VESSEL

20200318895

2020-10-08

Device and System for Condensing Gas

20200149808

2020-05-14

AIR SEPARATION METHOD AND APPARATUS

20200072547

2020-03-05

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

20190308877

2019-10-10

Method and plant for generation of synthesis gas

#10

20190301795

2019-10-03

Integration methods of gas processing plant and nitrogen rejection unit for high nitrogen feed gases

#11

20180292128

2018-10-11

Liquid natural gas liquefier utilizing mechanical and liquid nitrogen refrigeration

#12

20180231306

2018-08-16

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

#13

20180010848

2018-01-11

AIR SEPARATION METHOD AND APPARATUS

#14

20170268819

2017-09-21

Integration methods of gas processing plant and nitrogen rejection unit for high nitrogen feed gases

#15

20170102182

2017-04-13

Method and arrangement for producing liquefied methane gas (LMG) from various gas sources

#16

20170038137

2017-02-09

METHOD FOR THE PRODUCTION OF LIQUEFIED NATURAL GAS AND NITROGEN

#17

20170038136

2017-02-09

METHOD FOR THE INTEGRATION OF A NITROGEN LIQUEFIER AND LIQUEFACTION OF NATURAL GAS FOR THE PRODUCTION OF LIQUEFIED NATURAL GAS AND LIQUID NITROGEN

#18

20170038135

2017-02-09

METHOD FOR THE PRODUCTION OF LIQUEFIED NATURAL GAS AND LIQUID NITROGEN

#19

20170038134

2017-02-09

METHOD FOR THE PRODUCTION OF LIQUEFIED NATURAL GAS

#20

20170038133

2017-02-09

METHOD FOR THE INTEGRATION OF A NITROGEN LIQUEFIER AND LETDOWN OF NATURAL GAS FOR THE PRODUCTION OF LIQUID NITROGEN AND LOWER PRESSURE NATURAL GAS

#21

20170038132

2017-02-09

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

#22

20170016668

2017-01-19

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

#23

20170016667

2017-01-19

Liquefied natural gas production system and method with greenhouse gas removal

#24

20170010041

2017-01-12

Systems and methods for the production of liquefied nitrogen using liquefied natural gas

#25

20170003071

2017-01-05

PURIFYING CRYOGENIC FLUIDS

#26

20150354888

2015-12-10

Air separation apparatus to produce oxygen and nitrogen through isobaric separation

#27

20140250911

2014-09-11

Power generation and LNG production

#28

20130205831

2013-08-15

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

#29

20130139547

2013-06-06

AIR SEPARATION METHOD AND APPARATUS

#30

20130139546

2013-06-06

AIR SEPARATION METHOD AND APPARATUS

#31

20130047666

2013-02-28

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

#32

20110214453

2011-09-08

PROCESS AND DEVICE FOR CRYOGENIC AIR FRACTIONATION

#33

20110067444

2011-03-24

Processes and Device for Low Temperature Separation of Air

#34

20060230783

2006-10-19

Nitrogen rejection method and apparatus