البحث في مجموعات البراءات الوطنية والدولية

2. (US20170016179) CATALYTIC BIOMASS CONVERSION

Pub. No.:    20170016179    International Application No.:    15180845
Publication Date: Fri Jan 20 00:59:59 CET 2017 International Filing Date: Tue Jun 14 01:59:59 CEST 2016
IPC: D21C 3/22
C08B 15/08
B01J 37/12
B01J 37/03
D21C 9/16
B01J 23/889
Applicants: NANO-GREEN BIOREFINERIES INC.
Inventors: Andrew A. OLKOWSKI
Bernard LAARVELD
Norman ARRISON
Title: CATALYTIC BIOMASS CONVERSION
Abstract:

A biorefining method of processing a lignocellulosic biomass to separate lignin and hemicellulose from cellulose includes the steps of (a) reacting the biomass in an aqueous slurry having a pH less than 7, comprising a transition metal catalyst, hydrogen peroxide; and (b)

separating a solid cellulose fraction from dissolved lignin and hemicellulose fractions. The method may also be used to treat cellulose and produce microcrystalline or nanocrystalline cellulose. The transition metal catalyst may be a nanoparticulate catalyst including multivalent iron, iron oxides and iron hydroxides. The nanoparticulate catalyst may be formed by oxidizing a highly reduced solution of iron, such as groundwater that has not been exposed to oxygen.