Title:
METHOD FOR PRODUCING SUGAR BY HYDROLYZING THICK MASH OF AGRICULTURAL AND FOREST BIOMASS RAW MATERIAL
Document Type and Number:
WIPO Patent Application WO/2018/133619
Kind Code:
A1
Abstract:
Provided is a method for producing sugar by hydrolyzing a thick mash of an agricultural and forest biomass raw material, comprising the following steps: (1) subjecting a cellulosic raw material to a digestion treatment in a glycerol phase, wherein a glycerol crude cellulose and a glycerol treatment liquid are obtained after separation; (2) recycling the above-mentioned collected glycerol treatment liquid in the digestion treatment in step (1) 7 to 11 times; and (3) hydrolyzing, by means of cellulase, the glycerol crude cellulose obtained in step (2) to obtain a fermentable sugar. The glycerol phase digestion treatment refers to a digestion temperature of 230ºC-270ºC at a gauge pressure of 0-5 atm and maintaining the temperature for 10-30 minutes; or the acid addition amount of 0.01%-0.3% (w/v) solution volume, a digestion temperature of 160ºC-240ºC at a gauge pressure of 0-5 atm and maintaining the temperature for 10-30 minutes; or the alkali addition amount of 0.01%-0.3% (w/v) solution volume, a digestion temperature of 160ºC-240ºC at a gauge pressure of 0-5 atm and maintaining the temperature for 10-30 minutes.
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Inventors:
SUN FUBAO (CN)
HONG JIAPENG (CN)
TANG SONG (CN)
ZHOU HAO (CN)
HONG JIAPENG (CN)
TANG SONG (CN)
ZHOU HAO (CN)
Application Number:
PCT/CN2017/117785
Publication Date:
July 26, 2018
Filing Date:
December 21, 2017
Export Citation:
Assignee:
UNIV JIANGNAN (CN)
International Classes:
C12P19/14; C12P7/10
Foreign References:
| CN106755198A | 2017-05-31 | |||
| CN101323871A | 2008-12-17 | |||
| CN104862344A | 2015-08-26 | |||
| CN104894087A | 2015-09-09 |
Attorney, Agent or Firm:
HARBIN SHINEIP INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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