F25J1/0244 - CPC Classification Index

ClassID:

160088 ⎘

F25J1/0244 - CPC Classification

Classification description:

Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process; Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used Operation; Control and regulation; Instrumentation

Sub-classes:

F25J1/0245 » {Different modes, i.e. 'runs', of operation; Process control} 42
F25J1/0252 » {Control strategy, e.g. advanced process control or dynamic modeling} 24
F25J1/0254 » {controlling particular process parameter, e.g. pressure, temperature} 78
F25J1/0256 » {Safety aspects of operation } 11

Recent Application in this class:

20260126245

2026-05-07

SYSTEMS AND METHODS FOR ALIGNING SEQUENCES TO PERSONALIZED REFERENCES

20250314423

2025-10-09

METHOD AND APPARATUS FOR RELIQUEFACTION AND RECYCLING OF BOIL-OFF GAS INTO AN LNG TANK

20250180285

2025-06-05

INSTALLATION AND METHOD FOR PRODUCING LIQUEFIED HYDROGEN

20240410648

2024-12-12

PURGING SYSTEM AND METHOD FOR BOIL-OFF GAS RELIQUEFACTION APPARATUS FOR SHIP

20240053095

2024-02-15

COMBINED CYCLE NATURAL GAS PROCESSING SYSTEM

20230194160

2023-06-22

LIQUEFIED GAS STORAGE FACILITY

20220373255

2022-11-24

Mixed refrigerant system and method

20210404739

2021-12-30

METHOD AND APPARATUS FOR MAINTAINING PRODUCT AVAILABILITY DURING A DISTURBANCE IN AN AIR SEPARATION UNIT

20200333050

2020-10-22

Refrigeration cycle for liquid oxygen densification

#10

20200232704

2020-07-23

Systems and methods for using multiple cryogenic hydraulic turbines

#11

20200064062

2020-02-27

Primary loop start-up method for a high pressure expander process

#12

20200041179

2020-02-06

Mixed refrigerant system and method

#13

20200003070

2020-01-02

Raw material gas liquefying device and method of controlling this raw material gas liquefying device

#14

20190285339

2019-09-19

Raw material gas liquefying device and method of controlling this raw material gas liquefying device

#15

20190101329

2019-04-04

System for treating a gas deriving from the evaporation of a cryogenic liquid and supplying pressurized gas to a gas engine

#16

20190011179

2019-01-10

Boil-off gas supply device

#17

20190003425

2019-01-03

System for supplying compressed gas to several gas-fed devices

#18

20180202690

2018-07-19

Refrigeration cycle for liquid oxygen densification

#19

20180128543

2018-05-10

Method and controller for controlling a continuous process

#20

20180058776

2018-03-01

MAIN HEAT EXCHANGER AND A PROCESS FOR COOLING A TUBE SIDE STREAM

#21

20170307290

2017-10-26

LIQUEFACTION PROCESS FOR PRODUCING SUBCOOLED LNG

#22

20170219265

2017-08-03

Method for adjusting a Cryogenic refrigeration apparatus and corresponding apparatus

#23

20170003072

2017-01-05

Systems and methods for using multiple cryogenic hydraulic turbines

#24

20160282041

2016-09-29

Liquefaction process for producing subcooled LNG

#25

20140283938

2014-09-25

Three-way integrated Joule-Thomson valve and liquefied gas expander

#26

20140283549

2014-09-25

Method of gas expansion using liquefied gas expander and integrated Joule-Thomson valve

#27

20140053598

2014-02-27

Liquefier system

#28

20130333415

2013-12-19

Liquefaction process producing subcooled LNG

#29

20130327085

2013-12-12

Semi-closed loop LNG process

#30

20130111947

2013-05-09

Rebalancing a main heat exchanger in a process for liquefying a tube side stream

#31

20130068431

2013-03-21

Main heat exchanger and a process for cooling a tube side stream

#32

20130014517

2013-01-17

Liquefier with pressure-controlled liquefaction chamber

#33

20120079850

2012-04-05

Controlling liquefaction of natural gas

#34

20120060552

2012-03-15

METHOD AND APPARATUS FOR COOLING A GASEOUS HYDROCARBON STREAM

#35

20120039724

2012-02-16

Methods and devices used for automatically controlling speed of an expander

#36

20120037254

2012-02-16

Methods and devices used for automatically controlling speed of an expander

#37

20110253225

2011-10-20

Method for controlling a gas flow between a plurality of gas streams

#38

20110168377

2011-07-14

METHOD OF COOLING A HYDROCARBON STREAM AND AN APPARATUS THEREFOR

#39

20100300144

2010-12-02

Liquefied gas expander and integrated Joule-Thomson valve

#40

20100251763

2010-10-07

Apparatus and Methods for Natural Gas Transportation and Processing

#41

20100186929

2010-07-29

Method and apparatus for cooling a hydrocarbon stream

#42

20100175862

2010-07-15

BRAZED ALUMINUM HEAT EXCHANGER WITH SPLIT CORE ARRANGEMENT

#43

20090031755

2009-02-05

Natural gas liquefaction process to extend lifetime of gas wells

#44

20090025422

2009-01-29

Controlling Liquefaction of Natural Gas

#45

20080264076

2008-10-30

System and method for recovering and liquefying boil-off gas

#46

20080256976

2008-10-23

SEMI-CLOSED LOOP LNG PROCESS

#47

20060213223

2006-09-28

Apparatus for the liquefaction of natural gas and methods relating to same

#48

20050279133

2005-12-22

Semi-closed loop LNG process

#49

20050279131

2005-12-22

Noninvasive measurement and control system for use in hydrocarbon processing