(19)
(11) EP 4 823 715 A1

(12)

(43) Date of publication:
21.10.2026 Bulletin 2026/43

(21) Application number: 24821434.8

(22) Date of filing: 10.12.2024
(51) International Patent Classification (IPC): 
B01D 53/56(2006.01)
B01D 53/77(2006.01)
 B01D 53/86(2006.01)
C01B 21/40(2006.01)
(52) Cooperative Patent Classification (CPC):
B01D 53/565; B01D 53/864; B01D 53/8643; B01D 53/8628; B01D 53/8625; B01D 53/56; B01D 53/78; B01D 53/77; C01B 21/40; C01B 21/38; C01B 21/0411; Y02C 20/10
(86) International application number:
PCT/EP2024/085424
(87) International publication number:
WO 2025/125207 (19.06.2025 Gazette 2025/25)
(84) Designated Contracting States:
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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
GE KH MA MD TN

(30) Priority: 11.12.2023 EP 23215467

(71) Applicant: BASF SE
67056 Ludwigshafen am Rhein (DE)

(72) Inventors:
  • MUELLER, Matthias
    67056 Ludwigshafen am Rhein (DE)
  • WOELFERT, Andreas
    67056 Ludwigshafen am Rhein (DE)
  • WATERS, Gerrit
    67056 Ludwigshafen am Rhein (DE)
  • FRIEDRICH, Holger
    67056 Ludwigshafen am Rhein (DE)

(74) Representative: Kudla, Karsten 
Patentanwälte Isenbruck Bösl Hörschler PartG mbB Eastsite One Seckenheimer Landstraße 4
68163 Mannheim
68163 Mannheim (DE)

   


(54) PROCESS FOR REMOVING NITROGEN MONOXIDE, NITROGEN DIOXIDE AND NITROUS OXIDE FROM AN EXHAUST GAS STREAM