B01D53/225 - CPC Classification Index

ClassID:

29669 ⎘

B01D53/225 - CPC Classification

Classification description:

Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols, by diffusion Multiple stage diffusion

Sub-classes:

B01D53/226 » {in serial connexion} 255
B01D53/227 » {in parallel connexion} 80

Recent Application in this class:

20250065270

2025-02-27

ADVANCED LIQUID DESICCANT SOLUTION REGENERATOR

20250018332

2025-01-16

BIOGAS PURIFICATION UNIT

20230211293

2023-07-06

Gas separation membrane module with hollow fiber carbon molecular sieve membranes

20220288538

2022-09-15

POROUS MEMBRANE, PRODUCTION METHOD THEREFOR, SEPARATION MEMBRANE, LAYERED MODULE, AND GAS PERMEATION MODULE

20220168686

2022-06-02

MEMBRANE CAPTURE OF CO2 FROM REFINERY EMISSIONS

20220143549

2022-05-12

Method of transporting hydrogen

20220081328

2022-03-17

Method And Device For A Plasma-Induced Water Purification

20210138395

2021-05-13

Carbon dioxide reduction filter

20210130259

2021-05-06

Oxidative coupling of methane

#10

20210086129

2021-03-25

Method for distilling a gas stream containing oxygen

#11

20210069633

2021-03-11

Method and system for extracting pure helium

#12

20200347311

2020-11-05

Process for natural gas production

#13

20200047111

2020-02-13

Method to control the extraction rate in a membrane based biogas upgrading plant

#14

20190381449

2019-12-19

Multi-stage membrane systems with polymeric and microporous zeolitic inorganic membranes for gas separations

#15

20190329076

2019-10-31

Oxygen concentrating self-rescuer device

#16

20190176084

2019-06-13

SYSTEMS AND METHODS FOR MULTI-STAGE AIR DEHUMIDIFICATION AND COOLING

#17

20190100479

2019-04-04

Method and system for light olefin separation

#18

20190085132

2019-03-21

Polyimide, dianhydride monomers, and polymers, methods of making and uses thereof

#19

20180361310

2018-12-20

METHOD AND SYSTEM FOR PURIFICATION OF NATURAL GAS USING MEMBRANES

#20

20180163668

2018-06-14

Natural gas fuel system for an internal combustion engine

#21

20180043299

2018-02-15

Process for removing COfrom crude natural gas

#22

20170368497

2017-12-28

Process for separation of gases with reduced maintenance costs

#23

20170354904

2017-12-14

Methods and systems for treating a switchable polarity material, and related methods of liquid treatment

#24

20170298873

2017-10-19

Natural gas fuel system for an internal combustion engine

#25

20170283292

2017-10-05

Multistage Membrane Separation and Purification Process and Apparatus for Separating High Purity Methane Gas

#26

20170157557

2017-06-08

Method and system for purification of natural gas using membranes

#27

20170157556

2017-06-08

Method and system for purification of natural gas using membranes

#28

20170157555

2017-06-08

METHOD AND SYSTEM FOR PURIFICATION OF NATURAL GAS USING MEMBRANES

#29

20170120085

2017-05-04

Oxygen concentrating self-rescuer device

#30

20170050900

2017-02-23

Process for recovering olefins from manufacturing operations

#31

20160375401

2016-12-29

Monolithic substrate, monolithic separation membrane structure, and method for producing monolithic substrate

#32

20160346740

2016-12-01

ULTRA-SELECTIVE CARBON MOLECULAR SIEVE MEMBRANES AND METHODS OF MAKING

#33

20160325993

2016-11-10

OXYGEN TRANSPORT MEMBRANE

#34

20160250581

2016-09-01

Methods and systems of enhanced carbon dioxide recovery

#35

20160201983

2016-07-14

ON-BOARD AIRCRAFT OXYGEN ENRICHED AIR AND NITROGEN ENRICHED AIR GENERATION SYSTEM AND METHOD

#36

20160146764

2016-05-26

Simulataneous gas chromatograph analysis of a multi-stream natural gas upgrade generated through a multi-membrane process

#37

20160059181

2016-03-03

Device for separating carbon dioxide using silicone separation film and method for manufacturing same

#38

20160001219

2016-01-07

Methods and systems of enhanced carbon dioxide recovery

#39

20150336054

2015-11-26

PROCESS AND APPARATUS FOR PRODUCING OXYGEN AND NITROGEN USING ION TRANSPORT MEMBRANES

#40

20150321140

2015-11-12

Membrane separation device

#41

20150314229

2015-11-05

Fuel deoxygenation and fuel tank inerting system and method

#42

20150122122

2015-05-07

Method and system for removing carbon dioxide from hydrocarbons

#43

20140345457

2014-11-27

Method for separating gases

#44

20140283683

2014-09-25

Fluid separation apparatus and method of selectively separating mixed fluid

#45

20140144318

2014-05-29

Systems and methods for multi-stage air dehumidification and cooling

#46

20140142205

2014-05-22

Fischer-Tropsch process for producing hydrocarbons from biogas

#47

20130253250

2013-09-26

Method for High-Pressure Hydrocarbon Gas Mixture Purification and Plant for Implementing Thereof

#48

20130098242

2013-04-25

Process for separation of gases

#49

20120292574

2012-11-22

Process For The Production Of Hydrogen And Carbon Dioxide

#50

20120291485

2012-11-22

Process For The Production Of Hydrogen And Carbon Dioxide

#51

20120291484

2012-11-22

Process For The Production Of Hydrogen And Carbon Dioxide

#52

20120260799

2012-10-18

Apparatus and method for recovery of sulfur hexafluoride

#53

20120118155

2012-05-17

Systems and methods for multi-stage air dehumidification and cooling

#54

20120118148

2012-05-17

Systems and methods for air dehumidification and sensible cooling using a multiple stage pump

#55

20120118147

2012-05-17

Systems and methods for air dehumidification and cooling with membrane water vapor rejection

#56

20110200491

2011-08-18

Combustion systems and power plants incorporating parallel carbon dioxide capture and sweep-based membrane separation units to remove carbon dioxide from combustion gases

#57