EP 4065764 A1 20221005 - METHOD AND PLANT FOR OBTAINING CELLULOSE FIBRES
Title (en)
METHOD AND PLANT FOR OBTAINING CELLULOSE FIBRES
Title (de)
VERFAHREN UND ANLAGE ZUR GEWINNUNG VON ZELLULOSEFASERN
Title (fr)
PROCÉDÉ ET INSTALLATION DESTINÉS À L'OBTENTION DE FIBRES DE CELLULOSE
Publication
Application
Priority
- AT 602652019 A 20191129
- AT 601142020 A 20200424
- AT 2020060421 W 20201127
Abstract (en)
[origin: WO2021102498A1] The invention relates to a method for obtaining cellulose fibres from fibrous biomass (10), in which: the biomass (10) is first subjected to thermo-pressure hydrolysis, preferably with steam explosion, in a thermo-pressure hydrolysis plant (100), and then separation of the fibrous sludge (20) obtained from the thermo-pressure hydrolysis plant (100) is carried out in at least one separation plant (300, 300A, 300B, 300C, 300D), wherein a press cake (30) of cellulose fibres, preferably with a dry material content of over 20%, preferably of over 25%, and a filtrate (40, 40A, 40B, 40C, 40D, 40E, 40F, 41, 41A) of flowable, solids-rich thin sludge are obtained, and wherein the thin sludge is fed to a biogas plant (2000) as a fermentation substrate to obtain biogas. The invention also relates to a plant (1000) for carrying out this method.
IPC 8 full level
C02F 11/04 (2006.01); C12M 1/107 (2006.01); D21C 1/02 (2006.01); D21C 3/00 (2006.01)
CPC (source: EP US)
C12M 21/04 (2013.01 - EP US); C12M 45/06 (2013.01 - EP US); C12M 45/20 (2013.01 - EP US); D21C 1/02 (2013.01 - EP US); D21C 3/003 (2013.01 - EP US); Y02E 50/30 (2013.01 - EP)
Citation (search report)
See references of WO 2021102498A1
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
DOCDB simple family (publication)
WO 2021102498 A1 20210603; BR 112022010265 A2 20220816; CA 3158716 A1 20210603; CN 114746606 A 20220712; EP 4065764 A1 20221005; US 2023002971 A1 20230105
DOCDB simple family (application)
AT 2020060421 W 20201127; BR 112022010265 A 20201127; CA 3158716 A 20201127; CN 202080082468 A 20201127; EP 20819615 A 20201127; US 202017779837 A 20201127