METHOD FOR PRODUCING SACCHARIFICATION PRE-PROCESSED MATERIAL OF LIGNOCELLULOSE-BASED BIOMASS, AND SACCHARIFICATION PRE-PROCESSING DEVICE USING SAME

• US 20130052688A1
• Filed: 05/12/2011
• Published: 02/28/2013
• Est. Priority Date: 05/12/2010
• Status: Abandoned Application

• Current Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Original Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Inventors: Baba, Tsuyoshi, Onodera, Minako
• Application Number:
  US13/634,839
• Publication Number:
  US 20130052688A1
• Time in Patent Office: Days
• US Class Current: 435/72
• CPC Class Codes: C13K 1/02 obtained by saccharification of cellulosic materials manufacture of fodder A23K10/32
• CPC Class Codes: D21C 1/06 with alkaline reacting compounds
• CPC Class Codes: D21C 11/0007 Recovery of by-products, i.e. compounds other than those necessary for pulping, for multiple uses or not otherwise provided for volatile compounds obtained by decomposition of spent liquors in order to regenerate them D21C11/125; compounds obtained by fractionating the liquors in order to regenerate them D21C11/0042
• CPC Class Codes: D21C 3/02 with inorganic bases or alkaline reacting compounds, e.g. sulfate processes

Abstract

A method for producing a saccharification pre-processed material capable of producing a saccharification pre-processed material, in which lignin is sufficiently dissociated, when lignocellulose-based biomass is pre-processed with ammonia water, and a pre-processing device used therefor are provided. A saccharification pre-processing device 1 comprises a processing means 2 for mixing a substrate with ammonia water with the concentration from 20 to 30% by mass at a mass ratio of substrate:ammonia water=1:0.7 to 1:1.3 to yield a substrate mixture; heating the substrate mixture while keeping the same at a temperature of 25 to 100° C. for 1 to 100 hours for dissociating lignin from the substrate or swelling the substrate to yield a saccharification pre-processed material containing ammonia; and separating ammonia from the saccharification pre-processed material containing ammonia to yield a saccharification pre-processed material; and an ammonia water supplying means 4 for supplying ammonia water to the processing means 2.

Claims

1. A method for producing a saccharification pre-processed material of lignocellulose-based biomass by pre-processing lignocellulose-based biomass as a substrate prior to saccharification to yield a saccharification pre-processed material, in which lignin is dissociated from the substrate, or the substrate is swollen;

the method comprising the steps of;

mixing the substrate with ammonia water with the concentration in a range of 20 to 30% by mass at a mass ratio of substrate;

ammonia water=1;

0.7 to 1;

1.3 to yield a substrate mixture;

heating the substrate mixture while keeping the same at a temperature in a range of 25 80 to 100°

C. for a time period in a range of 1 to 100 hours for dissociating lignin from the substrate or swelling the substrate to yield a saccharification pre-processed material containing ammonia; and

separating ammonia gas from the saccharification pre-processed material containing ammonia to yield a saccharification pre-processed material.

2. The method for producing a saccharification pre-processed material of lignocellulose-based biomass according to claim 1, further comprising the steps of:

recovering ammonia water formed by dissolving, in water, the ammonia gas separated from the saccharification pre-processed material containing ammonia; and

transferring the saccharification pre-processed material to a post-process step.

3. (canceled)

4. A saccharification pre-processing device for lignocellulose-based biomass for conducting a pre-processing prior to saccharification of lignocellulose-based biomass as a substrate to yield a saccharification pre-processed material, in which lignin is dissociated from the substrate, or the substrate is swollen;

the saccharification pre-processing device comprising;

a processing means for mixing the substrate with ammonia water with the concentration in a range of 20 to 30% by mass are mixed at a mass ratio of substrate;

ammonia water=1;

0.7 to 1;

1.3 to yield a substrate mixture;

heating the yielded substrate mixture and keeping at a temperature in a range of 25 80 to 100°

C. for a time period in a range of 1 to 100 hours for dissociating lignin from the substrate or swelling the substrate to yield a saccharification pre-processed material containing ammonia; and

separating ammonia gas from the yielded saccharification pre-processed material containing ammonia to yield a saccharification pre-processed material; and

an ammonia water supplying means for supplying the ammonia water to the processing means.

5. The saccharification pre-processing device for lignocellulose-based biomass according to claim 4, further comprising:

an ammonia water recovering means for recovering ammonia water formed by dissolving, in water, the ammonia gas separated from the substrate mixture containing ammonia; and

a transferring means for transferring the saccharification pre-processed material to a post-process step.

6. The saccharification pre-processing device for lignocellulose-based biomass according to claim 5, further comprising:

an ammonia water recycling means for recycling the ammonia water recovered by the ammonia water recovering means to the ammonia water supplying means; and

an ammonia water concentration regulating means for regulating the concentration of the ammonia water to be recycled to the ammonia water supplying means.