EP 4211072 A1 20230719 - IMPROVEMENT TO CLAUS UNIT AND PROCESS
Title (en)
IMPROVEMENT TO CLAUS UNIT AND PROCESS
Title (de)
VERBESSERUNG AN CLAUS-ANLAGE UND VERFAHREN
Title (fr)
AMÉLIORATION APPORTÉE À UNE UNITÉ ET UN PROCÉDÉ CLAUS
Publication
Application
Priority
- GB 202014455 A 20200914
- GB 2021052381 W 20210914
Abstract (en)
[origin: WO2022053837A1] The invention relates to a process comprising (i) passing some or all feed gases through (a) a Claus unit or sulphur recovery unit comprising a reaction furnace, a waste heat boiler and two or more Claus catalytic reactors, and (b) a tail gas treating unit (TGTU) comprising a hydrogenation reactor, water removal, TGTU absorber and TGTU regenerator; (ii) collecting acid gas from the tail gas treatment unit (TGTU) and (iii) adding said acid gas from the tail gas treatment unit downstream of a first Claus catalytic reactor and upstream of a second Claus catalytic reactor in the Claus unit or sulphur recovery unit.
IPC 8 full level
C01B 17/04 (2006.01); B01D 53/86 (2006.01)
CPC (source: EP)
B01D 53/58 (2013.01); B01D 53/72 (2013.01); C01B 17/0456 (2013.01); B01D 2253/102 (2013.01); B01D 2253/104 (2013.01); B01D 2253/106 (2013.01); B01D 2257/40 (2013.01); B01D 2257/406 (2013.01); B01D 2257/702 (2013.01); Y02P 20/129 (2015.11)
Citation (search report)
See references of WO 2022053837A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022053837 A1 20220317; EP 4211072 A1 20230719; GB 202014455 D0 20201028
DOCDB simple family (application)
GB 2021052381 W 20210914; EP 21778540 A 20210914; GB 202014455 A 20200914