Title:
METHOD FOR PRODUCING CONCENTRATED AQUEOUS SUGAR SOLUTION
Document Type and Number:
WIPO Patent Application WO/2012/077698
Kind Code:
A1
Abstract:
Provided is a method for producing a concentrated aqueous sugar solution using cellulose-containing biomass as a raw material, the method comprising (1) a step for hydrolyzing cellulose-containing biomass to produce an aqueous sugar solution, (2) a step for filtering the aqueous sugar solution obtained in (1) through a microfiltration membrane and/or an ultrafiltration membrane and recovering the aqueous sugar solution from the permeated side, and (3) a step for filtering the aqueous sugar solution obtained in (2) through a nanofiltration membrane and/or a reverse osmosis membrane and collecting the permeated water from the permeated side and an aqueous concentrated sugar solution from the non-permeated side, wherein at least a part of the permeated water of the nanofiltration membrane and/or the reverse osmosis membrane is used as wash water in steps (1) and/or (2), thereby conserving water.
Inventors:
HANAKAWA MASAYUKI
KANAMORI SATOKO
KURIHARA HIROYUKI
TAKEUCHI NORIHIRO
MINAMINO ATSUSHI
KANAMORI SATOKO
KURIHARA HIROYUKI
TAKEUCHI NORIHIRO
MINAMINO ATSUSHI
Application Number:
PCT/JP2011/078249
Publication Date:
June 14, 2012
Filing Date:
December 07, 2011
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
HANAKAWA MASAYUKI
KANAMORI SATOKO
KURIHARA HIROYUKI
TAKEUCHI NORIHIRO
MINAMINO ATSUSHI
HANAKAWA MASAYUKI
KANAMORI SATOKO
KURIHARA HIROYUKI
TAKEUCHI NORIHIRO
MINAMINO ATSUSHI
International Classes:
C13K1/04; B01D71/08; C12S3/04; C13K13/00
Domestic Patent References:
| WO2010067785A1 | 2010-06-17 |
Foreign References:
| JP2010046008A | 2010-03-04 | |||
| JP2009184894A | 2009-08-20 | |||
| JP2004121055A | 2004-04-22 | |||
| JP2008029911A | 2008-02-14 |
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