(19)
(11) EP 4 568 773 A1

(12)

(43) Date of publication:
18.06.2025 Bulletin 2025/25

(21) Application number: 23762122.2

(22) Date of filing: 08.08.2023
(51) International Patent Classification (IPC): 
B01D 53/047(2006.01)
C10L 3/10(2006.01)
(52) Cooperative Patent Classification (CPC):
B01D 53/047; B01D 53/0476; B01D 2253/102; B01D 2253/106; B01D 2253/108; B01D 2253/1085; B01D 2257/102; B01D 2257/7025; B01D 2259/4145; C10L 3/08; C10L 3/105; C10L 2290/10; C10L 2290/26; C10L 2290/46; C10L 2290/48; C10L 2290/542
(86) International application number:
PCT/US2023/071867
(87) International publication number:
WO 2024/036169 (15.02.2024 Gazette 2024/07)
(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:
KH MA MD TN

(30) Priority: 09.08.2022 US 202217884051
09.08.2022 US 202263576452 P

(71) Applicant: Archaea Energy, Inc.
Houston, Texas 77079 (US)

(72) Inventor:
  • MITARITEN, Michael J.
    Pittstown, New Jersey 08867 (US)

(74) Representative: Mewburn Ellis LLP 
Aurora Building Counterslip
Bristol BS1 6BX
Bristol BS1 6BX (GB)

   


(54) NITROGEN REMOVAL SYSTEM FOR METHANE PURIFICATION FROM LANDFILL GAS, AND METHOD THEREOF