Patent ID: 9109049
Filing Date: 2015-08-18
Classification: C08B,C08H,C10B,Y02E

Abstract:
1. A method for pretreating lignocellulosic biomass containing alkali and/or alkaline earth metal (AAEM) comprising: providing a lignocellulosic biomass containing AAEM; determining the amount of the AAEM present in the lignocellulosic biomass; identifying, based on said determining, the amount of a mineral acid sufficient to titrate the AAEM present in the lignocellulosic biomass and to completely convert the mineral acid and the AAEM in the lignocellulosic biomass to thermally-stable, catalytically-inert salts without requiring residual acid disposal; and treating the lignocellulosic biomass with the identified amount of the mineral acid to produce a treated lignocellulosic biomass containing thermally-stable, catalytically inert AAEM salts, wherein said method does not remove the catalytically-inert AAEM salts from the lignocellulosic biomass.