F25J1/0245 - CPC Classification Index

ClassID:

160089 ⎘

F25J1/0245 - 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 Different modes, i.e. 'runs', of operation; Process control

Sub-classes:

F25J1/0247 » {start-up of the process} 47
F25J1/0248 » {Stopping of the process, e.g. defrosting or deriming, maintenance; Back-up mode or systems} 43
F25J1/0249 » {Controlling refrigerant inventory, i.e. composition or quantity } 41
F25J1/0251 » {Intermittent or alternating process, so-called batch process, e.g. "peak-shaving"} 61

Recent Application in this class:

20260029193

2026-01-29

LIQUEFIER CONTROL FOR TRANSIENT HEAT LOADS

20250180286

2025-06-05

SOLVENT RECOVERY DEVICE

20240410649

2024-12-12

INSTALLATION AND A METHOD FOR COOLING A FLUID TO CRYOGENIC TEMPERATURE

20240401876

2024-12-05

PROCESS AND APPARATUS FOR THE RECOVERY OF BOIL-OFF GAS FROM THE LIQUEFACTION OF HYDROGEN

20240101241

2024-03-28

Power supply and cooling system for a floating structure

20230160632

2023-05-25

LIQUEFACTION AND SUBCOOLING SYSTEM AND METHOD

20220196004

2022-06-23

GAS HANDLING SYSTEM AND METHOD FOR EFFICIENTLY MANAGING CHANGES IN GASEOUS CONDITIONS

20220196003

2022-06-23

GAS HANDLING SYSTEM AND METHOD FOR EFFICIENTLY MANAGING CHANGES IN GASEOUS CONDITIONS

20220155008

2022-05-19

Method and system for efficient nonsynchronous LNG production using large scale multi-shaft gas turbines

#10

20210356204

2021-11-18

Installation and method for purifying and liquefying natural gas

#11

20210341221

2021-11-04

CONFIGURATIONS AND METHODS FOR SMALL SCALE LNG PRODUCTION

#12

20200217585

2020-07-09

Method and system for cooling a hydrocarbon stream

#13

20200200471

2020-06-25

Multi-product liquefaction method and system

#14

20190203667

2019-07-04

Gas treatment system and vessel including the same

#15

20190078840

2019-03-14

Multi-product liquefaction method and system

#16

20190063807

2019-02-28

Helium management control system

#17

20180335253

2018-11-22

Method and system for efficient nonsynchronous LNG production using large scale multi-shaft gas turbines

#18

20180320637

2018-11-08

Gas processing system and vessel including the same

#19

20180058752

2018-03-01

Refrigerant recovery in natural gas liquefaction processes

#20

20180003429

2018-01-04

Configurations and methods for small scale LNG production

#21

20160102908

2016-04-14

Refrigerant recovery in natural gas liquefaction processes

#22

20160040928

2016-02-11

Flexible liquefied natural gas plant

#23

20150330574

2015-11-19

Method and apparatus for reliquefying natural gas

#24

20150143843

2015-05-28

Integration of a small scale liquefaction unit with an LNG plant to convert end flash gas and boil-off gas to incremental LNG

#25

20140238076

2014-08-28

Nitrogen rejection unit

#26

20130042645

2013-02-21

Method for turndown of a liquefied natural gas (LNG) plant

#27

20130036763

2013-02-14

Method for start-up of a liquefied natural gas (LNG) plant

#28

20130008204

2013-01-10

Refrigeration process

#29

20120240618

2012-09-27

Apparatus and method for cooling and liquefying a fluid

#30

20120240600

2012-09-27

METHOD OF HANDLING A BOIL OFF GAS STREAM AND AN APPARATUS THEREFOR

#31

20120060553

2012-03-15

NATURAL GAS LIQUEFACTION

#32

20120036888

2012-02-16

METHOD AND SYSTEM FOR THE SMALL-SCALE PRODUCTION OF LIQUIFIED NATURAL GAS (LNG) AND COLD COMPRESSED GAS (CCNG) FROM LOW-PRESSURE NATURAL GAS

#33

20100236286

2010-09-23

Method and system for regulation of cooling capacity of a cooling system based on a gas expansion process

#34

20100186447

2010-07-29

METHOD AND APPARATUS FOR CONTROLLING THE TURNDOWN OF A COMPRESSOR FOR A GASEOUS HYDROCARBON STREAM

#35

20100186446

2010-07-29

APPARATUS FOR THE LIQUEFACTION OF A GAS AND METHODS RELATING TO SAME

#36

20100139316

2010-06-10

Operating system of liquefied natural gas ship for subcooling and liquefying boil-off gas

#37

20100011663

2010-01-21

Method for liquefaction of natural gas

#38

20090071190

2009-03-19

CLOSED CYCLE MIXED REFRIGERANT SYSTEMS

#39

20080120993

2008-05-29

Operating system of liquefied natural gas ship for sub-cooling and liquefying boil-off gas

#40

20080115529

2008-05-22

LIQUEFIED NATURAL GAS PLANT WITH ENHANCED OPERATING FLEXIBILITY

#41

20080000266

2008-01-03

System to increase capacity of LNG-based liquefier in air separation process

#42

20070017250

2007-01-25

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

#43

20060156758

2006-07-20

Operating system of liquefied natural gas ship for sub-cooling and liquefying boil-off gas

#44

20050210915

2005-09-29

Method for liquefying a flow rich in hydrocarbons