Pretreating raw material of plant fiber by soft alkali / oxidation process, and technique of cyclic using solvent |
Title： |
| Pretreating raw material of plant fiber by soft alkali / oxidation process, and technique of cyclic using solvent |
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Application Number： |
200710062808 |
Application Date： |
2007/01/18 |
Announcement Date： |
2007/07/25 |
Pub. Date： |
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Publication Number： |
101003955 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
D21B 1/02C08B 1/00C12P 7/10 |
Applicant(s)： |
Tsinghua Univ. |
Inventor(s)： |
Chen Keke, Zhang Jianan, Zhao Zhigang, Zhou Yujie, Liu Hongjuan, Yang Mingde, Liu Dehua, Xu Jingming |
Key Words： |
raw material of plant fiber, soft alkali / oxidation process, cyclic using solvent |
Abstract： |
The present invention discloses a plant fiber raw material mild alkali/oxidation pretreatment and circulating utilization process of pretreatment liquor, belonging to the field of biological energy source and green chemical engineering technology. It is characterized by that said process includes the following steps: using solution containing alkali and H2O2 as pretreatment liquor, in which H2O2 is oxidation agent making plant fiber undergo the processes of cutting and removing dust, then adding said plant fiber into a pretreatment tank according to a certain solid-liquid ratio, in the pretreatment tank making the plant fiber undergo the process of alkali oxidation water pretreatment with a certain temperature for a certain period of time, then making the plant fiber be fed into spray rinsing chamber, spray rinsing, then feeding plant fiber raw material into hydrolysis tank, and making hydrolysis, colleting residual alkali oxidation water obtained by washing plant fiber raw material and pumping said alkali oxidation water into pretreatment tank to make secondary circulating utilization. |
Claim： |
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Priority： |
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PCT： |
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