CN105734178A - Method for preparing levoglucosan from waste nut shells - Google Patents
Method for preparing levoglucosan from waste nut shells Download PDFInfo
- Publication number
- CN105734178A CN105734178A CN201610090571.8A CN201610090571A CN105734178A CN 105734178 A CN105734178 A CN 105734178A CN 201610090571 A CN201610090571 A CN 201610090571A CN 105734178 A CN105734178 A CN 105734178A
- Authority
- CN
- China
- Prior art keywords
- shuck
- levoglucosan
- nut shells
- waste
- inner ether
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13K—SACCHARIDES OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DISACCHARIDES, OLIGOSACCHARIDES OR POLYSACCHARIDES
- C13K13/00—Sugars not otherwise provided for in this class
Abstract
The invention discloses a method for preparing levoglucosan from waste nut shells and relates to the field of biomass. The method includes the steps that the nut shells are completely washed, dried and smashed, and pass through a molecular sieve, nut shell powder is obtained, transferred into a pyrolyzer and vacuumized, the temperature of the pyrolyzer is adjusted, and levoglucosan is obtained after pyrolysis, filtering and drying. The nut shells serve as raw materials, waste resources are fully utilized, and waste is turned into wealth. Cellulose in the nut shells is pyrolyzed into levoglucosan, and levoglucosan can serve as an energy source and a carbon source directly or indirectly to further produce alcohol, organic acid and other products.
Description
Technical field
The present invention relates to biomass technical field, especially a kind of method utilizing discarded shuck to prepare inner ether sugar.
Background technology
Biomass include several big classes such as Organic substance, rubbish and the organic wastewater that plant generated by photosynthesis.The energy sources of biomass is in the sun, and biomass can be accumulated solar energy by photosynthesis, is stored in Organic substance, and these energy are source and the bases of the energy needed for human development.Containing, in daily life, after the edible kernel of people, abandoning by shuck or burn, and shuck is a kind of biomass resource rich in materials such as lignin, cellulose, hemicelluloses, if it directly being abandoned or burning, necessarily causes the significant wastage of resource.Therefore, strengthen the comprehensive utilization to shuck, it is to avoid the waste of shuck resource, produce the product that added value is high, be possible not only to effectively process solid waste, and can turn waste into wealth, improve income.
Inner ether sugar is the product that cellulose biomass is hydrolyzed under certain condition, and it as the direct or indirect energy and carbon source, can produce the product such as ethanol and organic acid further.Containing abundant vitamin in discarded shuck, if being hydrolyzed to inner ether sugar, the utilization rate of shuck necessarily can be improved, but, about utilizing shuck, to prepare the research of inner ether sugar, there is not been reported at present.
Summary of the invention
It is an object of the invention to provide a kind of method utilizing discarded shuck to prepare inner ether sugar, the method that the discarded shuck of this utilization prepares inner ether sugar can make full use of discarded shuck, it is achieved the comprehensive utilization of resource.
In order to solve the problems referred to above, the technical solution used in the present invention is:
The present invention utilizes the method that discarded shuck prepares inner ether sugar to comprise the following steps:
A, shuck is cleaned up, dry, pulverize, cross 100 order～200 order molecular sieves, obtain nut shell powder；
B, proceed to pyrolysis apparatus, evacuation, regulating pyrolysis apparatus temperature is 350 DEG C～400 DEG C, pyrolysis 2 hours～
3 hours；
C, filtration, dry, namely obtain inner ether sugar.
In technique scheme, technical scheme is it may also is that vacuum is 0.1 MPa～0.15 MPa more specifically.
Owing to have employed technique scheme, the present invention compared with prior art has the advantages that
1, the present invention is with shuck for raw material, takes full advantage of waste resource, turns waste into wealth.
2, the cellulose pyrolysis in shuck is inner ether sugar by the present invention, it is possible to as the direct or indirect energy and carbon source, produces the product such as ethanol and organic acid further.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described:
Embodiment 1
The preparation method of the present embodiment inner ether sugar is: cleaned up by shuck, dries, and pulverizes, and crosses molecular sieve, obtaining nut shell powder, proceed to pyrolysis apparatus, be evacuated to 0.1 MPa, regulating pyrolysis apparatus temperature is 350 DEG C, pyrolysis 2 hours, filters, and dries, namely obtains inner ether sugar.
Embodiment 2
The preparation method of the present embodiment inner ether sugar is: cleaned up by shuck, dries, and pulverizes, and crosses molecular sieve, obtaining nut shell powder, proceed to pyrolysis apparatus, be evacuated to 0.15 MPa, regulating pyrolysis apparatus temperature is 400 DEG C, pyrolysis 3 hours, filters, and dries, namely obtains inner ether sugar.
Embodiment 3
The preparation method of the present embodiment inner ether sugar is: cleaned up by shuck, dries, and pulverizes, and crosses molecular sieve, obtaining nut shell powder, proceed to pyrolysis apparatus, be evacuated to 0.13 MPa, regulating pyrolysis apparatus temperature is 370 DEG C, pyrolysis 2.5 hours, filters, and dries, namely obtains inner ether sugar.
Claims (2)
1. one kind utilizes the method that discarded shuck prepares inner ether sugar, it is characterised in that comprise the following steps:
A, shuck is cleaned up, dry, pulverize, cross 100 order～200 order molecular sieves, obtain nut shell powder；
B, proceed to pyrolysis apparatus, evacuation, regulating pyrolysis apparatus temperature is 350 DEG C～400 DEG C, pyrolysis 2 hours～
3 hours；
C, filtration, dry, namely obtain inner ether sugar.
2. the method that the discarded shuck of utilization according to claim 1 prepares inner ether sugar, it is characterised in that: vacuum is 0.1 MPa～0.15 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610090571.8A CN105734178A (en) | 2016-02-18 | 2016-02-18 | Method for preparing levoglucosan from waste nut shells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610090571.8A CN105734178A (en) | 2016-02-18 | 2016-02-18 | Method for preparing levoglucosan from waste nut shells |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105734178A true CN105734178A (en) | 2016-07-06 |
Family
ID=56245317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610090571.8A Pending CN105734178A (en) | 2016-02-18 | 2016-02-18 | Method for preparing levoglucosan from waste nut shells |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105734178A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1624104A (en) * | 2004-10-19 | 2005-06-08 | 中国科学院生态环境研究中心 | Saccharomycetes strain CGMCC No. 1189, its cultivating process and its application |
| CN103045481A (en) * | 2013-01-08 | 2013-04-17 | 南京师范大学 | Method for promoting growth of Nannochlorisoculata and increasing contents of chlorophyll and mycoprotein of Nannochlorisoculata |
| CN103415592A (en) * | 2010-12-20 | 2013-11-27 | 国际壳牌研究有限公司 | Biomass conversion systems having integrated heat management and methods for use thereof |
| CN105037446A (en) * | 2015-06-23 | 2015-11-11 | 河南城建学院 | A method for preparing 1, 6-di-D or 1-18O stable isotope labeled glucose |
-
2016
- 2016-02-18 CN CN201610090571.8A patent/CN105734178A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1624104A (en) * | 2004-10-19 | 2005-06-08 | 中国科学院生态环境研究中心 | Saccharomycetes strain CGMCC No. 1189, its cultivating process and its application |
| CN103415592A (en) * | 2010-12-20 | 2013-11-27 | 国际壳牌研究有限公司 | Biomass conversion systems having integrated heat management and methods for use thereof |
| CN103045481A (en) * | 2013-01-08 | 2013-04-17 | 南京师范大学 | Method for promoting growth of Nannochlorisoculata and increasing contents of chlorophyll and mycoprotein of Nannochlorisoculata |
| CN105037446A (en) * | 2015-06-23 | 2015-11-11 | 河南城建学院 | A method for preparing 1, 6-di-D or 1-18O stable isotope labeled glucose |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160706 |
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| RJ01 | Rejection of invention patent application after publication |