CN103834424A - Method for preparation of pyroligneous liquor from wheat straw - Google Patents
Method for preparation of pyroligneous liquor from wheat straw Download PDFInfo
- Publication number
- CN103834424A CN103834424A CN201210476752.6A CN201210476752A CN103834424A CN 103834424 A CN103834424 A CN 103834424A CN 201210476752 A CN201210476752 A CN 201210476752A CN 103834424 A CN103834424 A CN 103834424A
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- CN
- China
- Prior art keywords
- wheat stalk
- wheat straw
- retort
- pyroligneous liquor
- wood vinegar
- 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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- 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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- Fertilizers (AREA)
Abstract
The invention discloses a method for preparation of a pyroligneous liquor from wheat straw. The method comprises the steps of: 1) subjecting wheat straw to impurity removal and crushing to obtain wheat straw powder; 2) adding the wheat straw powder into a retort, carrying out heating decomposition for 3-8h at 300-600DEG C in the absence air, leading the pyrolyzed gas out of the retort, and carrying out gas-liquid separation to obtain a crude pyroligneous liquor and a flammable gas; and 3) standing the crude pyroligneous liquor for over 30 days to separate 3 layers, taking the middle layer to perform rectification for 3-5h at 90-120DEG C, and taking the condensable part, thus obtaining the pyroligneous liquor. The method provided by the invention takes wheat straw as the raw material to prepare the environment friendly pyroligneous liquor, realizes change of waste materials into things of value, and is accord with the requirements of green chemistry and the direction of sustainable development.
Description
Technical field
The present invention relates to a kind of method with wheat stalk wood vinegar processed.
Background technology
Wheat stalk refers to the remainder of crop after results seed.In rural area, after getting wheat, peasant is often burnt wheat stalk original place.Burning wheat stalk do a lot of harms: the one, and atmosphere pollution sharply increases the concentration of flue dust in air, particulate matter and other pollutents, and Air quality declines rapidly, is unfavorable for HUMAN HEALTH; The 2nd, reduce atmospheric visibility, block traffic, what particularly the landing of airport aircraft and motorway were got on the car travels; The 3rd, the microflora of the high temperature spoiled soil of burning, affects soil fertilizer efficiency.How to utilize wheat stalk, realization is turned waste into wealth, and is a problem demanding prompt solution.
Wood vinegar is to extract through biological chemistry new and high technology the natural phant material obtaining. the main component of these product is acetic acid, phenols, water, and wherein organic composition acetic acid accounts for more than 47%.In wood vinegar energy, use as deodorant with nitrogen sulfur compound; Wood vinegar is because containing the sterilization of much phenolic material mass-energy, sterilizing and keep away insect as sterilization, wormer use.These product have stronger sterilization, antibacterial function under high density; Under lower concentration, can suppress the breeding of miscellaneous bacteria, there is effect fungi-proofing, insect protected.In the Organic farming cultivation field of developed country, oneself is widely used.At present, seldom see the pertinent literature of preparing wood vinegar taking wheat stalk as raw material.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method with wheat stalk wood vinegar processed, and the method is taking wheat stalk as raw material, to realize the object turning waste into wealth.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
By a method for wheat stalk wood vinegar processed, comprise the following steps:
1), by wheat stalk removal of impurities, pulverizing, obtain wheat stalk powder;
2) wheat stalk powder is added in retort, under 300～600 DEG C of temperature, isolated air, thermal degradation 3～8 hours, draws pyrolysis gas from retort and obtains crude pyroligneous acid and inflammable gas through gas-liquid separation;
3) get crude pyroligneous acid, leave standstill more than 30 days, isolate 3 layers, get middle level under the condition of 90～120 DEG C, rectifying 3～5 hours, gets condensability part, obtains described wood vinegar.
Preferably, the temperature of described thermal degradation is 400～500 DEG C.
In such scheme, described inflammable gas can be through reclaiming burning, as the thermal source of retort thermal degradation.
A kind of method with wheat stalk wood vinegar processed of the present invention, taking wheat stalk as raw material, makes environment amenable wood vinegar, and realization is turned waste into wealth, and meets the direction of requirement and the Sustainable development of Green Chemistry.
Embodiment
Be described further with embodiment below, but the present invention is not limited to these embodiment.
Embodiment 1
By the method for wheat stalk wood vinegar processed, its step is as follows:
1), by wheat stalk removal of impurities, pulverizing, obtain wheat stalk powder;
2) wheat stalk powder is added in retort, under 500 DEG C of temperature, isolated air, thermal degradation 8 hours, draws pyrolysis gas from retort and obtains crude pyroligneous acid and inflammable gas through gas-liquid separation; Wherein, described inflammable gas is through reclaiming burning, as the thermal source of retort thermal degradation;
3) get crude pyroligneous acid, leave standstill more than 30 days, isolate 3 layers, get middle level under the condition of 90 DEG C, rectifying 4 hours, gets condensability part, obtains described wood vinegar.
Embodiment 2
By the method for wheat stalk wood vinegar processed, its step is as follows:
1), by wheat stalk removal of impurities, pulverizing, obtain wheat stalk powder;
2) wheat stalk powder is added in retort, under 600 DEG C of temperature, isolated air, thermal degradation 3 hours, draws pyrolysis gas from retort and obtains crude pyroligneous acid and inflammable gas through gas-liquid separation; Wherein, described inflammable gas is through reclaiming burning, as the thermal source of retort thermal degradation;
3) get crude pyroligneous acid, leave standstill more than 30 days, isolate 3 layers, get middle level under the condition of 100 DEG C, rectifying 5 hours, gets condensability part, obtains described wood vinegar.
Embodiment 3
By the method for wheat stalk wood vinegar processed, its step is as follows:
1), by wheat stalk removal of impurities, pulverizing, obtain wheat stalk powder;
2) wheat stalk powder is added in retort, under 300 DEG C of temperature, isolated air, thermal degradation 6 hours, draws pyrolysis gas from retort and obtains crude pyroligneous acid and inflammable gas through gas-liquid separation; Wherein, described inflammable gas is through reclaiming burning, as the thermal source of retort thermal degradation;
3) get crude pyroligneous acid, leave standstill more than 30 days, isolate 3 layers, get middle level under the condition of 120 DEG C, rectifying 3 hours, gets condensability part, obtains described wood vinegar.
Claims (3)
1. by a method for wheat stalk wood vinegar processed, it is characterized in that, comprise the following steps:
1), by wheat stalk removal of impurities, pulverizing, obtain wheat stalk powder;
2) wheat stalk powder is added in retort, under 300～600 DEG C of temperature, isolated air, thermal degradation 3～8 hours, draws pyrolysis gas from retort, obtains crude pyroligneous acid and inflammable gas through gas-liquid separation;
3) get crude pyroligneous acid, leave standstill more than 30 days, isolate 3 layers, get middle level under the condition of 90～120 DEG C, rectifying 3～5 hours, gets condensability part, obtains described wood vinegar.
2. the method with wheat stalk wood vinegar processed according to claim 1, is characterized in that: the temperature of described thermal degradation is 400～500 DEG C.
3. the method with wheat stalk wood vinegar processed according to claim 1 and 2, is characterized in that: described inflammable gas is through reclaiming burning, as the thermal source of retort thermal degradation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210476752.6A CN103834424A (en) | 2012-11-22 | 2012-11-22 | Method for preparation of pyroligneous liquor from wheat straw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210476752.6A CN103834424A (en) | 2012-11-22 | 2012-11-22 | Method for preparation of pyroligneous liquor from wheat straw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103834424A true CN103834424A (en) | 2014-06-04 |
Family
ID=50798325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210476752.6A Pending CN103834424A (en) | 2012-11-22 | 2012-11-22 | Method for preparation of pyroligneous liquor from wheat straw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103834424A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07216362A (en) * | 1994-02-01 | 1995-08-15 | Kawasaki Heavy Ind Ltd | Vinegar, its preparation, and plant growth promoter |
| CN1563277A (en) * | 2004-03-26 | 2005-01-12 | 南京林业大学 | Method for preparing stalk charcoal and stalk vinegar liquid form stalks of cropper |
| CN101074382A (en) * | 2007-06-25 | 2007-11-21 | 辽宁大学 | Process for extracting wood-vinegar fluid from almond |
| CN101724658A (en) * | 2009-11-09 | 2010-06-09 | 肖进彬 | Method for comprehensively manufacturing biomass |
| EP2343349A1 (en) * | 2010-01-11 | 2011-07-13 | Mark Breiter | Device for producing torrefied wood, charcoal, wood tar, pyroligneous acid and synthesis gas |
-
2012
- 2012-11-22 CN CN201210476752.6A patent/CN103834424A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07216362A (en) * | 1994-02-01 | 1995-08-15 | Kawasaki Heavy Ind Ltd | Vinegar, its preparation, and plant growth promoter |
| CN1563277A (en) * | 2004-03-26 | 2005-01-12 | 南京林业大学 | Method for preparing stalk charcoal and stalk vinegar liquid form stalks of cropper |
| CN101074382A (en) * | 2007-06-25 | 2007-11-21 | 辽宁大学 | Process for extracting wood-vinegar fluid from almond |
| CN101724658A (en) * | 2009-11-09 | 2010-06-09 | 肖进彬 | Method for comprehensively manufacturing biomass |
| EP2343349A1 (en) * | 2010-01-11 | 2011-07-13 | Mark Breiter | Device for producing torrefied wood, charcoal, wood tar, pyroligneous acid and synthesis gas |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140604 |