ClassID:

84525

C01B17/0456 - CPC Classification

Classification description:

Sulfur; Compounds thereof; Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by processes comprising a dry catalytic conversion of hydrogen sulfide-containing gases, e.g. the Claus process the hydrogen sulfide-containing gas being a Claus process tail gas

Recent Application in this class:
#1
20250382173
2025-12-18

COMPROPORTIONATION-BASED AUTOCATALYTIC CYCLES AND RELATED METHODS

#2
20240391771
2024-11-28

Sulfur Recovery Unit to Convert Hydrogen Sulfide to Elemental Sulfur

#3
20240109776
2024-04-04

Removal of Sulfur Compounds from Gas

#4
20230139298
2023-05-04

Sulfur recovery by solidifying sulfur on reactor catalyst

#5
20220234891
2022-07-28

Method for production of elemental sulfur by part or fully catalytic oxidation of Claus tail gas

#6
20220227625
2022-07-21

METHOD FOR PRODUCTION OF ELEMENTAL SULFUR AND SULFURIC ACID

#7
20220177307
2022-06-09

Method for production of sulfur and sulfuric acid

#8
20220177306
2022-06-09

Revamping of a claus plant with a sulfuric acid plan

#9
20220062818
2022-03-03

Membrane process for H2 recovery from sulfur recovery tail gas stream of sulfur recovery units and process for environmentally greener sales gas

#10
20210031139
2021-02-04

Helium recovery from gaseous streams

#11
20200277186
2020-09-03

Thermal stage and reduction absorption sulfur recovery process

#12
20200039825
2020-02-06

“ENRICH-SMAX”—integrated H2S removal, separation of impurities and partial acid gas enrichment in sour gas processing

#13
20180353898
2018-12-13

Helium recovery from gaseous streams

#14
20180065851
2018-03-08

SETR- SUPER ENHANCED TAIL GAS RECOVERY; A TAIL GAS PROCESS WITH ADSORBENT REACTORS FOR ZERO EMISSIONS

#15
20170333880
2017-11-23

Catalyst for selectively catalytically oxidizing hydrogen sulfide, catalyst for burning tail-gas, and process for deeply catalytically oxidizing hydrogen sulfide to element sulfur

#16
20170260049
2017-09-14

Claus process for sulfur recovery with intermediate water vapor removal by adsorption

#17
20170216812
2017-08-03

Integrated process to recover high quality native COfrom a sour gas comprising HS and CO

#18
20170190574
2017-07-06

Claus process for sulfur recovery with intermediate water vapor removal by adsorption

#19
20170044015
2017-02-16

Supersulf-a process with internal cooling and heating reactors in subdewpoint sulfur recovery and tail gas treating systems

#20
20160167964
2016-06-16

Treatment of gases

#21
20150376007
2015-12-31

Process for degassing condensed sulfur from a Claus sulfur recovery system

#22
20150307359
2015-10-29

Integrated process to recover high quality native COfrom a sour gas comprising HS and CO

#23
20150273392
2015-10-01

Configurations and methods for advanced oxygen enrichment for sulfur recovery

#24
20150191360
2015-07-09

Integrated process for native COrecovery from a sour gas comprising HS and CO

#25
20150132213
2015-05-14

Sulfur recovery unit

#26
20140374070
2014-12-25

Apparatus for in-situ production of low dissolved hydrogen sulfide, degassed, sulfur from Claus sulfur recovery

#27
20140374069
2014-12-25

Apparatus for in-situ production of low dissolved hydrogen sulfide, degassed, sulfur from Claus sulfur recovery

#28
20130224094
2013-08-29

Ammonia destruction methods for use in a Claus tail gas treating unit

#29
20130216462
2013-08-22

Method for processing a sulfur-containing gas and a hydrogenation catalyst used therefor

#30
20120308474
2012-12-06

Process for the production of sulfur from sulfur dioxide with tail gas recycle

#31
20120186788
2012-07-26

Low-energy waste gas cooling using direct contact condenser

#32
20110268650
2011-11-03

Methods and apparatus for sulfur recovery from acid gases

#33
20110195008
2011-08-11

DESULFURIZATION PROCESS

#34
20110008229
2011-01-13

Sulfur recovery plant tail gas treatment process

#35
20100266483
2010-10-21

Process for desulphurization of a gaseous effluent comprising a device for on-line analysis and control

#36
20100175865
2010-07-15

In-situ gas analyzer probe

#37
20100111824
2010-05-06

Hydrogen production method

#38
20100111784
2010-05-06

Configurations and methods for carbon dioxide and hydrogen production from gasification streams

#39
20100098618
2010-04-22

SULFUR REMOVAL FROM GASES

#40
20090226364
2009-09-10

Process for treating acid gas in staged furnaces with inter-stage heat recovery and inter-stage sulfur production

#41
20090226354
2009-09-10

Process for catalytic tail gas incineration

#42
20090196808
2009-08-06

Simultaneous removal of HS and SOfrom tail gases

#43
20090010834
2009-01-08

Process for the thermal reduction of sulfur dioxide to sulfur

#44
20080311030
2008-12-18

Apparatus and method for operating the apparatus for continuously recovering sulfur from gas containing HS

#45
20080279759
2008-11-13

Process for producing a purified gas stream

#46
20080247927
2008-10-09

Ammonia destruction methods for use in a claus tail gas treating unit

#47
20080187485
2008-08-07

Method of extracting the hydrogen sulfide contained in a hydrocarbon gas

#48
20080172942
2008-07-24

INTEGRATION OF SULFUR RECOVERY PROCESS WITH LNG AND/OR GTL PROCESSES

#49
20070134147
2007-06-14

Process for recovering sulphur from a gas stream containing hydrogen sulphide

#50
20060204432
2006-09-14

Process for the recovery of sulfur from Claus tail gas streams

#51
20050214925
2005-09-29

Process for the high recovery efficiency of sulfur from an acid gas stream

#52
17704552
2023-05-02

Enhanced tail gas treatment of sulfur recovery unit with steam swept membranes

#53
17510600
2023-01-10

Treating sulfur dioxide containing stream by acid aqueous absorption

#54
15457338
2018-04-17

Enhancement of claus tail gas treatment with membrane and reducing step

#55
14276317
2015-05-05

Process of conversion sulfur compounds to elemental sulfur by using direct reduction and oxidation catalysts in Claus units