EP 4127110 A1 20230208 - METHOD FOR UTILIZING SLUDGES FROM WOOD PULPING
Title (en)
METHOD FOR UTILIZING SLUDGES FROM WOOD PULPING
Title (de)
VERFAHREN ZUR NUTZUNG VON SCHLÄMMEN AUS HOLZZELLSTOFFEN
Title (fr)
PROCÉDÉ D'UTILISATION DES BOUES PROVENANT DE LA FABRICATION DE LA PÂTE DE BOIS
Publication
Application
Priority
- SE 2050328 A 20200325
- SE 2021050092 W 20210208
Abstract (en)
[origin: WO2021194403A1] A method for production of fuel pellets or briquettes from surplus lignocellulose containing biomass of tree material used in a Kraft pulping process. The method comprises separating (21) the tree material into wood material and surplus lignocellulose containing biomass, processing (22) the wood material in the Kraft pulping process to produce pulp, withdrawing (23) at least one effluent from the Kraft pulping process to a waste water treatment plant, treating (24) the at least one effluent to obtain at least one sludge, reducing (25) the water content of the at least one sludge to obtain dewatered sludge, adding (29) at least a portion of the dewatered sludge to at least a portion of the surplus lignocellulose containing biomass to obtain a biomass and sludge mixture, and densifying (210) the mixture to form fuel pellets or briquettes.
IPC 8 full level
C10L 5/44 (2006.01); C02F 11/12 (2006.01); C10L 5/48 (2006.01); D21C 11/00 (2006.01)
CPC (source: EP SE)
C02F 1/5245 (2013.01 - EP); C02F 11/12 (2013.01 - SE); C02F 11/122 (2013.01 - EP); C02F 11/13 (2019.01 - EP); C10L 5/20 (2013.01 - EP); C10L 5/361 (2013.01 - EP); C10L 5/363 (2013.01 - EP); C10L 5/44 (2013.01 - EP SE); C10L 5/48 (2013.01 - SE); C10L 9/08 (2013.01 - EP); D21C 11/0007 (2013.01 - SE); C02F 2103/28 (2013.01 - EP SE); C02F 2301/066 (2013.01 - EP); C02F 2303/06 (2013.01 - EP); C02F 2303/26 (2013.01 - EP); C10L 5/442 (2013.01 - EP); C10L 5/48 (2013.01 - EP); C10L 2290/08 (2013.01 - EP); C10L 2290/24 (2013.01 - EP); C10L 2290/28 (2013.01 - EP); C10L 2290/30 (2013.01 - EP); C10L 2290/48 (2013.01 - EP); C10L 2290/50 (2013.01 - EP); Y02E 50/10 (2013.01 - EP); Y02E 50/30 (2013.01 - EP)
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 2021194403 A1 20210930; EP 4127110 A1 20230208; EP 4127110 A4 20240417; SE 2050328 A1 20210427; SE 543633 C2 20210427
DOCDB simple family (application)
SE 2021050092 W 20210208; EP 21775698 A 20210208; SE 2050328 A 20200325