ClassID:

30538

B01D2258/05 - page 2 - CPC Classification

Classification description:

Sources of waste gases Biogas

Recent Application in this class:
#301
20110306807
2011-12-15

Methanol purification method and apparatus

#302
20110290109
2011-12-01

Low energy, high recovery, rapid cycle kinetic PSA for biogas

#303
20110280773
2011-11-17

Apparatus for microwave induced destruction of siloxanes and hydrogen sulfide in biogas

#304
20110244555
2011-10-06

METHOD AND SYSTEM FOR PURIFYING RAW GASES, PARTICULARLY BIOGAS, FOR OBTAINING METHANE

#305
20110239543
2011-10-06

Apparatus and method for converting gas into fuel

#306
20110236961
2011-09-29

Systems and methods for treating landfill gas using landfill leachate

#307
20110206588
2011-08-25

METHOD AND APPARATUS FOR REMOVING AMMONIA FROM A GAS STREAM

#308
20110197640
2011-08-18

Regenerable removal of sulfur from gaseous or liquid mixtures

#309
20110185901
2011-08-04

Absorbent solution based on N, N, N′, N′-tetramethylhexane-1,6-diamine and on a particular amine comprising primary or secondary amine functions and method for removing acid compounds from a gaseous effluent

#310
20110185899
2011-08-04

Methods for Abatement of Arsenic and Phosphorous Contaminants From Fuel Gases Prior to Gasification

#311
20110185896
2011-08-04

GAS PURIFICATION PROCESSES

#312
20110182788
2011-07-28

Catalytic moving bed filter

#313
20110176981
2011-07-21

ABSORBENT SOLUTION BASED ON A TERTIARY OR HINDERED AMINE AND ON A PARTICULAR ACTIVATOR AND METHOD FOR REMOVING ACID COMPOUNDS FROM A GASEOUS EFFLUENT

#314
20110175032
2011-07-21

Method and plant for the production of synthesis gas from biogas

#315
20110123878
2011-05-26

Dual Purpose Gas Purification by Using Pressure Swing Adsorption Columns for Chromatographic Gas Separation

#316
20110110834
2011-05-12

Absorbent solution containing a thiadiazole-derived degradation inhibitor and method for limiting the degradation of an absorbent solution

#317
20110104779
2011-05-05

Heat-stable carbonic anhydrases and their use

#318
20110094378
2011-04-28

Oxygen removal from contaminated gases

#319
20110084020
2011-04-14

Systems and methods for converting gaseous byproducts of wastewater treatment into energy

#320
20110048230
2011-03-03

PROCESS FOR STRIPPING AND RECOVERING AMMONIA FROM DIGESTED WASTES AND PLANT FOR CARRYING OUT SAID PROCESS

#321
20110042307
2011-02-24

METHODS AND APPARATUSES TO REDUCE HYDROGEN SULFIDE IN A BIOGAS

#322
20110041689
2011-02-24

Off gas purification

#323
20110033354
2011-02-10

Absorption medium for removing acid gases from a fluid stream

#324
20110023710
2011-02-03

Landfill gas purification method and system

#325
20110023497
2011-02-03

Method for Purifying Biogas

#326
20110015456
2011-01-20

GAS TREATMENT APPARATUS-WATER FLOODED SCREW COMPRESSOR

#327
20110012063
2011-01-20

METHOD AND SYSTEM FOR PRODUCING METHANE ENRICHED BIOGAS

#328
20110005393
2011-01-13

System and method extracting and employing compression heat in biogas treatment plant equipment

#329
20100329953
2010-12-30

Acid gas scrubbing composition

#330
20100326276
2010-12-30

Acid gas scrubbing composition

#331
20100319540
2010-12-23

Removal of acid gases by means of an absorbent comprising a stripping aid

#332
20100307335
2010-12-09

Fuel cleaning for gas fired engines

#333
20100297723
2010-11-25

Heat-stable carbonic anhydrases and their use

#334
20100292524
2010-11-18

Methane recovery from a landfill gas

#335
20100282074
2010-11-11

Method and system for regenerating an amine-containing scrubbing solution obtained during gas purification

#336
20100261266
2010-10-14

BIOLOGICAL DESULFURIZATION APPARATUS

#337
20100255540
2010-10-07

Process for the treatment of methane emissions

#338
20100237290
2010-09-23

Method for producing a purified synthesis gas from a biomass including a purification step upstream from the partial oxidation

#339
20100224067
2010-09-09

Systems and methods for processing methane and other gases

#340
20100192770
2010-08-05

Cyclic-amine-comprising absorption medium for removing acid gases

#341
20100143209
2010-06-10

MICROWAVE INDUCED DESTRUCTION OF IMPURITIES FROM BIOGAS AND NITROGEN OXIDES FROM ENGINE EXHAUST

#342
20100139536
2010-06-10

Method and plant for COcapturing

#343
20100133186
2010-06-03

High performance cross-linked polybenzoxazole and polybenzothiazole polymer membranes

#344
20100119890
2010-05-13

Systems and methods for biomethane cleaning and distribution

#345
20100107872
2010-05-06

BIOGAS UPGRADING

#346
20100101985
2010-04-29

Apparatus for removing dissolved hydrogen sulfide in anaerobic treatment

#347
20100077796
2010-04-01

Hybrid Membrane/Distillation Method and System for Removing Nitrogen from Methane

#348
20100063343
2010-03-11

PROCESS FOR THE PURIFICATION OF METHANE GAS

#349
20100047866
2010-02-25

Heat-stable carbonic anhydrases and their use

#350
20100037772
2010-02-18

Apparatus and method for biogas purification

#351
20100036187
2010-02-11

Method and plant for treating crude gas, in particular biogas, containing methane and carbon dioxide in order to produce methane

#352
20100024647
2010-02-04

Method and device for separating methane and carbon dioxide from biogas

#353
20090314625
2009-12-24

Method for steam biomass reactor

#354
20090206028
2009-08-20

Combined nutrient recovery and biogas scrubbing system integrated in series with animal manure anaerobic digester

#355
20090162922
2009-06-25

DIESEL EXHAUST GAS SCRUBBING METHOD FOR CARBON DIOXIDE REMOVAL

#356
20090156875
2009-06-18

METHANE SEPARATION METHOD, METHANE SEPARATION APPARATUS, AND METHANE UTILIZATION SYSTEM

#357
20090028646
2009-01-29

System and method for treating landfill gas using landfill leachate

#358
20090013870
2009-01-15

Landfill gas purification method and system

#359
20090000482
2009-01-01

System and method extracting compression heat in bio-gas treatment plant

#360
20080289504
2008-11-27

Regenerable purification system for removal of siloxanes and volatile organic carbons

#361
20080289497
2008-11-27

Systems and methods for processing methane and other gases

#362
20080276804
2008-11-13

Functionalized adsorbent for removal of acid gases and use thereof

#363
20080268312
2008-10-30

Desulfurizing device for fuel cell and fuel cell system including the same

#364
20080264254
2008-10-30

Novel sorbents and purification and bulk separation of gas streams

#365
20080257158
2008-10-23

Self-regulating bio-gas treatment system

#366
20080241886
2008-10-02

Process For the Treatment of Methane Emissions

#367
20080197013
2008-08-21

Microwave induced destruction of impurities from biogas and nitrogen oxides from engine exhaust

#368
20080179177
2008-07-31

Microwave induced destruction of siloxanes and hydrogen sulfide in biogas

#369
20080173176
2008-07-24

Fluid scrubber

#370
20080134754
2008-06-12

Process for converting biogas to a pipeline grade renewable natural gas

#371
20070289448
2007-12-20

Biogas fuel conditioning system

#372
20070095205
2007-05-03

Method for processing landfill and other stranded gas containing commercial quantities of methane and contaminated by carbon dioxide, nitrogen and oxygen into a pipeline or vehicle quality natural gas product

#373
20070044339
2007-03-01

Air treatment device for agricultural buildings

#374
20060251571
2006-11-09

Chemical-biological process for the removal of HS from a gas

#375
20060225571
2006-10-12

Siloxane removal process

#376
20060144224
2006-07-06

Regenerable purification system for removal of siloxanes and volatile organic carbons

#377
20050066815
2005-03-31

CO2 separator method and apparatus

#378
18508622
2024-05-14

Jute filters to reduce ammonia inhibition effects of chicken manure for biogas production

#379
18424094
2025-04-22

System and method for cleaning of biogas

#380
18424009
2025-04-01

System and method for cleaning of biogas

#381
18235472
2024-05-14

System and method for producing renewable natural gas from biogas

#382
18215754
2024-04-30

Scrubber for HS removal from continuous biogas flow

#383
18212609
2024-07-16

Jute filters to reduce ammonia inhibition effects of chicken manure for biogas production

#384
17682887
2024-12-31

Wastewater treatment apparatus