EP 2694723 A1 20140212 - LIGNOCELLULOSE PROCESSING
Title (en)
LIGNOCELLULOSE PROCESSING
Title (de)
LIGNOZELLULOSEVERARBEITUNG
Title (fr)
TRAITEMENT DE LA LIGNOCELLULOSE
Publication
Application
Priority
- IE 20110161 A 20110401
- IE 2012000014 W 20120329
Abstract (en)
[origin: WO2012131665A1] A method of transforming a lignocellulose material comprises the steps of: a. combining a lignocellulose material with a solution containing hydrogen peroxide and a hydrogen peroxide stabiliser to produce a mixture that is at least 3% by mass hydrogen peroxide, b. feeding said mixture to the entrance of a continuous reactor concomitant with providing an agent that facilitates the rapid decomposition of the hydrogen peroxide in the solution proximal to the entrance of the reactor so as to cause exothermic, explosive decomposition of the hydrogen peroxide to oxygen and water thus forming a mixture of gas, liquid, and solids and increasing the pressure and temperature in the reactor to at least 15 bar, and 70°C respectively without addition of heat from an external source, c. exiting the mixture of gas, water and solids formed in the reactor through an outlet with a pressure change, into a flash vessel wherein the mixture is separated into a liquid phase containing dissolved or suspended solids and a gas phase substantially rich in oxygen, and d. continuously removing from the flash vessel a gas stream substantially rich in oxygen and a separate heated liquid stream having suspended or dissolved therein chemically and physically altered components of the lignocellulose including a substantially cellulosic material with reduced recalcitrance relative to the starting lignocellulose material.
IPC 8 full level
D21C 1/08 (2006.01); D21C 3/02 (2006.01); D21C 3/22 (2006.01); D21C 9/16 (2006.01)
CPC (source: EP)
D21C 1/08 (2013.01); D21C 3/026 (2013.01); D21C 3/222 (2013.01); D21C 9/163 (2013.01); D21C 3/04 (2013.01); D21C 3/06 (2013.01)
Citation (search report)
See references of WO 2012131665A1
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
DOCDB simple family (publication)
WO 2012131665 A1 20121004; BR 112013024925 A2 20161220; EP 2694723 A1 20140212
DOCDB simple family (application)
IE 2012000014 W 20120329; BR 112013024925 A 20120329; EP 12716644 A 20120329