PROCESS AND APPARATUS FOR ENZYMATIC HYDROLYSIS OF LIGNOCELLULOSIC MATERIAL AND FERMENTATION OF SUGARS
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Issued Date -
Nov 14, 2019
app pub date -
Aug 28, 2018
filing date -
Apr 3, 2014
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Published
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Abstract
The invention relates to a process for the preparation of a sugar product from lignocellulosic material, comprising the following steps:
- a) optionally, pretreatment of the lignocellulosic material;b) optionally, washing of the optionally pretreated lignocellulosic material;c) enzymatic hydrolysis of the optionally washed and/or optionally pretreated lignocellulosic material in a hydrolysis reactor using an enzyme composition comprising at least two cellulase; andd) optionally, recovery of a sugar product;wherein during the enzymatic hydrolysis oxygen-containing gas is added to the lignocellulosic material in the hydrolysis reactor and wherein part of the oxygen-containing gas, added to the lignocellulosic material, is gas originating from the headspace of the reactor,preferably during part of the time of the enzymatic hydrolysis less oxygen is added to the lignocellulosic material compared to the other part of the time of the enzymatic hydrolysis, or preferably during part of the time of the enzymatic hydrolysis no oxygen is added to the lignocellulosic material.
First Claim
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Patent Owner(s)
Patent Owner | Address | |
---|---|---|
DSM IP ASSETS B V | 6411 TE HEERLEN |
International Classification(s)
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- [Patents Count]
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
BERKHOUT, Michael Petrus Jozef | Echt, NL | 18 | 182 |
HOFMEESTER, Joseph Johannes Maria | Echt, NL | 2 | 17 |
NOORDAM, Bertus | Echt, NL | 40 | 279 |
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