F25J1/02 - CPC Classification Index

ClassID:

160050 ⎘

F25J1/02 - 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

Sub-classes:

F25J1/0201 » {using only internal refrigeration means, i.e. without external refrigeration} 31
F25J1/0203 » {using a single-component refrigerant [SCR] fluid in a closed vapor compression cycle (not used)} 8
F25J1/0211 » {using a multi-component refrigerant [MCR] fluid in a closed vapor compression cycle } 17
F25J1/0221 » {using the cold stored in an external cryogenic component in an open refrigeration loop} 79
F25J1/0225 » {using other external refrigeration means not provided before, e.g. heat driven absorption chillers} 48
F25J1/0228 » {Coupling of the liquefaction unit to other units or processes, so-called integrated processes } 36
F25J1/0243 » {Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used } 4

Recent Application in this class:

20250283660

SYSTEM FOR COLLECTING AND REUSING CARBON DIOXIDE BY USING BLUE HYDROGEN PRODUCTION

20250146744

Method and System for Ultra-Low Emissions of Natural Gas Storage and Redeployment

20240337441

LEAN GAS LNG HEAVIES REMOVAL PROCESS USING NGL

20210372695

Inspection apparatus and inspection method

20210364232

PROCESS FOR SUPPLYING OXYGEN AND/OR NITROGEN AND ALSO ARGON TO A GEOGRAPHIC ZONE

20210095918

Lean gas LNG heavies removal process using NGL

20210080172

COMPRESSOR TRAIN ARRANGEMENTS

20200318641

COMPRESSION TRAIN INCLUDING TWO CENTRIFUGAL COMPRESSORS AND LNG PLANT INCLUDING TWO CENTRIFUGAL COMPRESSORS

20200271381

PROCESS FOR UTILIZING OF MULTI STAGE COMPRESSORS INTERCOOLERS BLOWDOWN AS A COOLANT FOR PROCESS AIR

20170219265

Method for adjusting a Cryogenic refrigeration apparatus and corresponding apparatus

20170198966

REDUCING REFRIGERATION DUTY ON A REFRIGERATION UNIT IN A GAS PROCESSING SYSTEM

20170191752

Air purification units

20160274068

LIQUID CARBON DIOXIDE DELIVERY PUMP, AND SUPERCRITICAL FLUID CHROMATOGRAPH PROVIDED WITH THE SAME

20160138862

Method and apparatus for cooling a hydrocarbon stream

20160061519

Method to produce LNG

20160047597

Method and apparatus in a cryogenic liquefaction process

20150369534

Natural gas isobaric liquefaction apparatus

20150345860

System and method for recovery and recycling coolant gas at elevated pressure

20150121952

Production method and production system for natural gas

20140366576

Process for recovery and purification of nitrous oxide

20140202205

REACTOR LIQUID COOLDOWN METHOD

20140202204

REACTOR LIQUID COOLDOWN METHOD

20140053598

Liquefier system

20130219955

METHOD FOR PRODUCING PRESSURIZED LIQUEFIED NATURAL GAS, AND PRODUCTION SYSTEM USED IN SAME

20130192273

Gas liquefaction system and method

20130047632

GAS LIQUEFACTION SYSTEM AND METHOD

20100037654

Method and apparatus for cooling a hydrocarbon stream

18766818

Cryogen chamber with adsorber