CN1824782A - Method for preprocessing biomass - Google Patents
Method for preprocessing biomass Download PDFInfo
- Publication number
- CN1824782A CN1824782A CNA2005100227603A CN200510022760A CN1824782A CN 1824782 A CN1824782 A CN 1824782A CN A2005100227603 A CNA2005100227603 A CN A2005100227603A CN 200510022760 A CN200510022760 A CN 200510022760A CN 1824782 A CN1824782 A CN 1824782A
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- Prior art keywords
- acid
- cellulose
- biomass
- hydrolysis
- mierocrystalline cellulose
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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- Processing Of Solid Wastes (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Saccharide Compounds (AREA)
Abstract
The present invention relates to a method for pretreating biomass instead of sodium hydroxide, fulfuric acid and vapor explosion. Said invention is characterized by that it adopts the following steps: pulverizing cellulose-live biomasses of crop straw and stalk, grass and wood, etc., removing impurity, making acid hydrolysis, separating and extracting cellulose, using cellulose to hydrolyze cellulose, using saccharomycetes to make fermentation to produce ethyl alcohol and recover silicon fluoride. The above-mentioned acid is hydrofluoric acid.
Description
One, technical field:
The present invention relates to a kind of method of biomass energy, especially relate to the pretreated method of a kind of biomass.
Two, background technology:
At present, it is very slow directly to decompose the microbial process of xylogen and hemicellulose.Cellulase is the direct hydrolysis stalk effectively.The pre-treatment of the xylogen in the stalk, hemicellulose at first being removed by heating, adding mineral acid, alkali etc. is that present biomass ferment is produced the alcoholic acid key.The alkaline process pre-treatment can remove delignification, but contaminated wastewater is serious, and acid system can be removed hemicellulose, but is easy to generate materials such as the furans that suppresses the yeast growth, small molecules acid, the quick-fried method cost of vapour height, product complexity.Find a kind of cheapness, do not increase sodium, sulphur and other element that adds lustre to, do not need the pretreatment process of high pressure, hot conditions, can promote production of fuel ethanol greatly undoubtedly.
Three, summary of the invention:
The present invention provides a kind of biomass pretreated method in order to solve the weak point in the above-mentioned background technology, and it can replace sodium hydroxide, sulfuric acid and vapour quick-fried, reduces cost and environmental pollution.
For achieving the above object, the technical solution used in the present invention is:
The pretreated method of a kind of biomass, its special character is: pulverize cellulose series biomass such as agricultural crop straw, grass and timber, remove foreign matter, acid hydrolysis, separation and Extraction Mierocrystalline cellulose, cellulase hydrolysis Mierocrystalline cellulose, saccharomycetes to make fermentation are produced ethanol and are reclaimed silicon fluoride.
Above-mentioned acid can be etching acid.
The working concentration scope of above-mentioned etching acid can be 0.1%-100% (V/V), and addition is determined according to silicone content, the hardness of stalk.
Above-mentioned technological process comprises following operation steps: wheat stalk is cut into 0.5 centimetre fragment, put in the plastic tank of withstand high temperatures, add 1: behind 1-1.5 (V/V) etching acid, plastic tank put in the boiling water bath of being furnished with the gas recovery pipeline heat, transparent up to seeing that stalk turns to, stop heating after can seeing parallel Mierocrystalline cellulose arranged evenly, pull Mierocrystalline cellulose out, drip washing or air-dry after put into again in another plastic tank, carry out cellulosic enzymolysis, complete until cellulose hydrolysis, also hydrolysis on one side, Yi Bian carry out ethanol fermentation, the silicon fluoride gas that evaporates is all collected, sell behind the purifying.
Compared with prior art, the advantage and the effect that have of the present invention is as follows:
1, the present invention can replace other all acid, alkali, salt and solvent, and the quick-fried method of vapour, does not need high pressure-temperature, and cost is low, does not add the elements that add lustre to such as sodium, sulphur, the noresidue pollutent.
2, the present invention does not produce and suppresses saccharomycetic secondary substance.
3, the Mierocrystalline cellulose yield height of acquisition of the present invention, easily by cellulase hydrolysis.
Four, embodiment:
Production technique of the present invention comprises: cellulose series biomass such as crushing straw, grass and timber, remove foreign matter, acid hydrolysis, separation and Extraction Mierocrystalline cellulose, cellulase hydrolysis Mierocrystalline cellulose, saccharomycetes to make fermentation and produce ethanol and reclaim silicon fluoride.
Principle of the present invention is: contain silicon in straw, the leaf, generate the gaseous state silicon fluoride by the silicon in etching acid and the plant, remove the silicon in the plant, make plant stem-leaf softening, the H in the etching acid
+Along with the progressively generation of silicon fluoride and eliminating and increase H
+Be catalyzer and reductive agent, so quickened originally to have become flexible, Mierocrystalline cellulose, hemicellulose and xylogen be the crosslinked of main three.Fluorine in the etching acid is with the evaporation of silicon fluoride form, and that stay only is H
+, all preprocessing process does not increase any adding lustre to and unnecessary element.Etching acid through being commonly used for the glass corrosion agent has fine solvent action, though discharge fluorine in atmosphere, the present invention's silicon fluoride that will produce, that have certain purity reclaims, and has both reduced environmental pollution, brings new economic benefit again.
Embodiment:
The wheat stalk cutting and grinding are become fragment less than 0.5cm, put into compacting in the plastic tank of withstand high temperatures, add 1: behind 40% (V/V) etching acid of 1-1.5 (V/V), plastic tank put in the boiling water bath of being furnished with the gas recovery pipeline heat, heat while stirring, up to see stalk turn to transparent, stop heating after can seeing parallel Mierocrystalline cellulose arranged evenly, pull Mierocrystalline cellulose out, drip washing or air-dry after put into again in another plastic tank, carry out cellulosic enzymolysis again, complete until cellulose hydrolysis.
Claims (4)
1, the pretreated method of a kind of biomass is characterized in that: pulverize cellulose series biomass such as agricultural crop straw, grass and timber, remove foreign matter, acid hydrolysis, separation and Extraction Mierocrystalline cellulose, cellulase hydrolysis Mierocrystalline cellulose, saccharomycetes to make fermentation are produced ethanol and are reclaimed silicon fluoride.
2, the pretreated method of a kind of biomass according to claim 1, it is characterized in that: described acid is etching acid.
3, the pretreated method of a kind of biomass according to claim 2 is characterized in that: the working concentration scope of described etching acid is 0.1%-100% (V/V), and addition is determined according to silicone content, the hardness of stalk.
4, according to claim 2 or the pretreated method of 3 described a kind of biomass, it is characterized in that comprising following operation steps: wheat stalk is cut into 0.5 centimetre fragment, put in the plastic tank of withstand high temperatures, add 1: behind 1-1.5 (V/V) etching acid, plastic tank put in the boiling water bath of being furnished with the gas recovery pipeline heat, transparent up to seeing that stalk turns to, stop heating after can seeing parallel Mierocrystalline cellulose arranged evenly, pull Mierocrystalline cellulose out, drip washing or air-dry after put into again in another plastic tank, carry out cellulosic enzymolysis, complete until cellulose hydrolysis, also hydrolysis on one side, carry out ethanol fermentation on one side, the silicon fluoride gas that evaporates is all collected, sell behind the purifying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100227603A CN100516228C (en) | 2005-12-29 | 2005-12-29 | Method for preprocessing biomass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100227603A CN100516228C (en) | 2005-12-29 | 2005-12-29 | Method for preprocessing biomass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1824782A true CN1824782A (en) | 2006-08-30 |
| CN100516228C CN100516228C (en) | 2009-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100227603A Expired - Fee Related CN100516228C (en) | 2005-12-29 | 2005-12-29 | Method for preprocessing biomass |
Country Status (1)
| Country | Link |
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| CN (1) | CN100516228C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838946A (en) * | 2010-05-07 | 2010-09-22 | 李平 | Method for comprehensively treating silicon tetrachloride and papermaking pulping black liquor |
| CN101952398A (en) * | 2007-12-03 | 2011-01-19 | 格沃股份有限公司 | Renewable compositions |
| CN101538597B (en) * | 2009-04-22 | 2011-06-08 | 安徽安生生物化工科技有限责任公司 | Method for disposing straws by sulfur trioxide gas |
| CN101736630B (en) * | 2008-11-21 | 2011-08-17 | 安琪酵母股份有限公司 | Pretreatment method for biorefinery of lignocellulose |
| CN103614418A (en) * | 2013-11-27 | 2014-03-05 | 屠纪民 | Method for producing fuel ethanol through synchronous saccharification and fermentation |
| CN103696307A (en) * | 2013-12-17 | 2014-04-02 | 西南交通大学 | Process for removing ash content in straw cellulose |
| US8975461B2 (en) | 2010-05-07 | 2015-03-10 | Gevo, Inc. | Renewable jet fuel blendstock from isobutanol |
| CN106244634A (en) * | 2006-10-26 | 2016-12-21 | 希乐克公司 | Biomass processing |
| CN108329060A (en) * | 2018-03-13 | 2018-07-27 | 上海永通生态工程股份有限公司 | A kind of preparation method of Water Soluble Organic Carbon fertilizer |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102431071A (en) * | 2011-10-25 | 2012-05-02 | 张文生 | Straw fiber board manufacturing method and liquid ball mill with plastic lining boards |
-
2005
- 2005-12-29 CN CNB2005100227603A patent/CN100516228C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106244634A (en) * | 2006-10-26 | 2016-12-21 | 希乐克公司 | Biomass processing |
| CN101952398A (en) * | 2007-12-03 | 2011-01-19 | 格沃股份有限公司 | Renewable compositions |
| CN101952398B (en) * | 2007-12-03 | 2014-05-21 | 格沃股份有限公司 | Renewable compositions |
| CN101736630B (en) * | 2008-11-21 | 2011-08-17 | 安琪酵母股份有限公司 | Pretreatment method for biorefinery of lignocellulose |
| CN101538597B (en) * | 2009-04-22 | 2011-06-08 | 安徽安生生物化工科技有限责任公司 | Method for disposing straws by sulfur trioxide gas |
| CN101838946A (en) * | 2010-05-07 | 2010-09-22 | 李平 | Method for comprehensively treating silicon tetrachloride and papermaking pulping black liquor |
| US8975461B2 (en) | 2010-05-07 | 2015-03-10 | Gevo, Inc. | Renewable jet fuel blendstock from isobutanol |
| CN103614418A (en) * | 2013-11-27 | 2014-03-05 | 屠纪民 | Method for producing fuel ethanol through synchronous saccharification and fermentation |
| CN103696307A (en) * | 2013-12-17 | 2014-04-02 | 西南交通大学 | Process for removing ash content in straw cellulose |
| CN103696307B (en) * | 2013-12-17 | 2016-05-18 | 西南交通大学 | A kind of stalk cellulose ash content removing process |
| CN108329060A (en) * | 2018-03-13 | 2018-07-27 | 上海永通生态工程股份有限公司 | A kind of preparation method of Water Soluble Organic Carbon fertilizer |
| CN108329060B (en) * | 2018-03-13 | 2021-06-01 | 上海永通生态工程股份有限公司 | Preparation method of water-soluble organic carbon fertilizer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100516228C (en) | 2009-07-22 |
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Granted publication date: 20090722 Termination date: 20111229 |