CN109135860A - The preprocess method of biomass - Google Patents
The preprocess method of biomass Download PDFInfo
- Publication number
- CN109135860A CN109135860A CN201810951551.4A CN201810951551A CN109135860A CN 109135860 A CN109135860 A CN 109135860A CN 201810951551 A CN201810951551 A CN 201810951551A CN 109135860 A CN109135860 A CN 109135860A
- Authority
- CN
- China
- Prior art keywords
- clast
- biomass
- wet crumb
- preprocess method
- carried out
- 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
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/40—Solid fuels essentially based on materials of non-mineral origin
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/40—Solid fuels essentially based on materials of non-mineral origin
- C10L5/44—Solid fuels essentially based on materials of non-mineral origin on vegetable substances
-
- 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
-
- 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
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The present invention relates to biomass fuel production technical fields, are more particularly to a kind of preprocess method of biomass；Include the following steps: that biomass material is cut off or be crushed by (1), obtains particle size range in the clast of 10-60mm；(2) cyclonic separation is carried out to gained clast and pulse dust removal is handled；(3) clast is washed with recirculated water, and adjusts the moisture content of clast to 10-30%；(4) supercritical CO is carried out to gained wet crumb2Explosion treatment；(5) microwave drying treatment is carried out to clast water content≤10% to wet crumb；(6) clast was crushed to 100 mesh.The present invention is cleaned by hydro-thermal process, overcritical explosion treatment, reduces alkali metal element content, softening wood fibre, to reduce slagging phenomenon and to facilitate feeding.
Description
Technical field
The present invention relates to biomass fuel production technical fields, are more particularly to a kind of preprocess method of biomass.
Background technique
Biomass moulding solid fuel is a kind of environment-friendly fuel with wide application prospect, and production technology includes powder
Broken, removal of impurities, extruding, drying, cooling, quality inspection, packaging and other steps.Currently, being deposited in the production process of biomass moulding solid fuel
Have in following problem to be solved: one is in the collection and transportational process of lignin raw material, be inevitably mixed into containing
SiO2Silt, while agricultural crop straw can absorb a certain amount of alkali metal element during the growth process, these elements with salt or
The forms such as oxide are present in biomass body.When stalk biomass solid molding fuel burns in boiler, alkali gold
Belong to the eutectic that low melting point is generated with silicon dioxde reaction, it is eutectiferous to there is the fusing point for reducing stalk ash content, make straw ash
Glassy hard clinker is easily formed, boiler inner wall face is condensed in, generates the dust stratification and clogging problems being difficult to clean off.The second is not
With biomass material there are larger difference in the performances such as moisture content, hardness, crush resistance, by the mistake of biomass extrusion molding
Cheng Zhong, biomass how steady and continuous feeding solid fuel molding machine be influence stalk solid molding fuel development bottleneck it
One.
Summary of the invention
According to the above-mentioned deficiencies of the prior art, the technical problem to be solved by the present invention is to propose a kind of pre- place of biomass
Reason method is cleaned by hydro-thermal process, overcritical explosion treatment, reduces alkali metal element content, softening wood fibre, so as to
It reduces slagging phenomenon and facilitates feeding.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention are as follows: a kind of preprocess method of biomass, packet
Include following steps:
(1) biomass material is cut off or is crushed, obtain particle size range in the clast of 10-60mm；
(2) cyclonic separation is carried out to gained clast and pulse dust removal is handled；
(3) clast is washed with recirculated water, and adjusts the moisture content of clast to 10-30%；
(4) supercritical CO is carried out to gained wet crumb2Explosion treatment；
(5) microwave drying treatment is carried out to clast water content≤10% to wet crumb；
(6) clast was crushed to 100 mesh.
Further, the water temperature of the recirculated water is 60-75 DEG C.
Further, the specific method of the step (4) is that clast is heated to 80-120 DEG C, is passed through CO2, set pressure
Rapid release after 10-15MPa, 30-120 minutes.
Further, the microwave drying treatment step in the step (5) are as follows:
1) adjusting unit mass microwave irradiation power is 200-600w/kg wet crumb, and wet crumb temperature is made to rise to 70-80
℃；
2) adjusting unit mass microwave irradiation power is 0.8-1.2kw/kg wet crumb, and wet crumb temperature is made to rise to 100-
120 DEG C, isothermal holding to clast water content≤10%.
Further, the biomass material includes woody waste and/or draft class waste.
Further, the woody waste in sawdust, wood shavings, sawdust, bark, branch, leaf, bamboo at least
It is a kind of；The draft class waste in agricultural crop straw, shell, corncob, wheat bran, peanut shell, bagasse at least one
Kind.
The beneficial effects of the present invention are: cutoff process can be distributed more uniform raw material convenient for formation length, to control
Moisture processed and temperature.Cyclonic separation and pulse dust removal can tentatively remove a large amount of impurity that raw material is collected with carried in storage and transport process.
Hydro-thermal process can soften sawdust, make cellulose, hemicellulose, lignin swollen, strenuous exercise provides space for molecule.It is super to face
Boundary CO2Explosion treatment can remove the substances such as pectic substance, make lignin in viscous state, and hemicellulose loses connection effect, sawdust modeling
Property increase.Microwave treatment can make fierce collision mutually between sawdust interior molecules, and heating efficiency is high, thermal effectiveness is uniform.Through this
After the method processing that invention provides, the alkali metal such as Na, K in sawdust
Constituent content is low, and the impurity contents such as sandstone are low, after biomass solid formed fuel is made, the ash content fusing point of fuel
Height is not susceptible to dust stratification and clogging problems.In addition, being stripped of the sawdust volume reduction, quality softening after drying of pectic substance, drop
Low feeding difficulty.
Specific embodiment
Below by the description to embodiment, the shape of for example related each component of a specific embodiment of the invention, structure
It makes, the mutual alignment between each section and connection relationship, the effect of each section and working principle, manufacturing process and the side of operating with
Method etc., is described in further detail, completeer to help those skilled in the art to have inventive concept of the invention, technical solution
Whole, accurate and deep understanding.
Embodiment 1: the pretreatment of biomass
(1) biomass material is cut off or is crushed, obtain particle size range in the clast of 10-60mm；
(2) cyclonic separation is carried out to gained clast and pulse dust removal is handled；
(3) clast is washed with 60-75 DEG C of circulating hot water, and adjusts the moisture content of clast to 10-30%；
(4) gained wet crumb is heated to 80-120 DEG C, is passed through CO2, pressure 10-15MPa is set, it is fast after 30-120 minutes
Fast release；
(5) microwave drying treatment is carried out to wet crumb:
1) adjusting unit mass microwave irradiation power is 200-600w/kg wet crumb, and wet crumb temperature is made to rise to 70-80
℃；
2) adjusting unit mass microwave irradiation power is 0.8-1.2kw/kg wet crumb, and wet crumb temperature is made to rise to 100-
120 DEG C, isothermal holding to clast water content≤10%；
(6) clast was crushed to 100 mesh.
The biomass material is sawdust, wood shavings, sawdust.
Embodiment 2: the pretreatment of biomass
Using the method for embodiment 1, difference
Be: the biomass material is the mixture being made of bark, branch, leaf.
Embodiment 3: the pretreatment of biomass
Using the method for embodiment 1, the difference is that: the biomass material is bamboo.
Embodiment 4: the pretreatment of biomass
Using the method for embodiment 1, the difference is that: the biomass material is by straw, corncob, bagasse group
At mixture.
Embodiment 5: the pretreatment of biomass
Using the method for embodiment 1, the difference is that: the biomass material is to be made of shell, wheat bran, peanut shell
Mixture.
The present invention is exemplarily described above, it is clear that present invention specific implementation is not subject to the restrictions described above,
As long as using the improvement for the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out, or not improved this is sent out
Bright conception and technical scheme directly apply to other occasions, within the scope of the present invention.Protection of the invention
Range should be determined by the scope of protection defined in the claims.
Claims (6)
1. a kind of preprocess method of biomass, which comprises the steps of:
(1) biomass material is cut off or is crushed, obtain particle size range in the clast of 10-60mm；
(2) cyclonic separation is carried out to gained clast and pulse dust removal is handled；
(3) clast is washed with recirculated water, and adjusts the moisture content of clast to 10-30%；
(4) supercritical CO is carried out to gained wet crumb2Explosion treatment；
(5) microwave drying treatment is carried out to clast water content≤10% to wet crumb；
(6) clast was crushed to 100 mesh.
2. the preprocess method of biomass according to claim 1, it is characterised in that: the water temperature of the recirculated water is 60-
75℃。
3. the preprocess method of biomass according to claim 1, it is characterised in that: the specific method of the step (4)
For clast is heated to 80-120 DEG C, it is passed through CO2, set pressure 10-15MPa, rapid release after 30-120 minutes.
4. the preprocess method of biomass according to claim 1, it is characterised in that: the microwave in the step (5) is dry
Dry processing step are as follows:
1) adjusting unit mass microwave irradiation power is 200-600w/kg wet crumb, and wet crumb temperature is made to rise to 70-80 DEG C；
2) adjusting unit mass microwave irradiation power is 0.8-1.2kw/kg wet crumb, and wet crumb temperature is made to rise to 100-120 DEG C,
Isothermal holding is to clast water content≤10%.
5. the preprocess method of biomass according to claim 1, it is characterised in that: the biomass material includes woody
Class waste and/or draft class waste.
6. the preprocess method of biomass according to claim 5, it is characterised in that: the woody waste is selected from wood
At least one of bits, wood shavings, sawdust, bark, branch, leaf, bamboo；The draft class waste is selected from agricultural crop straw, fruit
At least one of shell, corncob, wheat bran, peanut shell, bagasse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810951551.4A CN109135860A (en) | 2018-08-21 | 2018-08-21 | The preprocess method of biomass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810951551.4A CN109135860A (en) | 2018-08-21 | 2018-08-21 | The preprocess method of biomass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109135860A true CN109135860A (en) | 2019-01-04 |
Family
ID=64790385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810951551.4A Pending CN109135860A (en) | 2018-08-21 | 2018-08-21 | The preprocess method of biomass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109135860A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109734483A (en) * | 2019-02-19 | 2019-05-10 | 安徽瑞虎肥业有限公司 | A kind of preprocess method of biomass fertilizers |
| CN110499200A (en) * | 2019-07-11 | 2019-11-26 | 西安交通大学 | A kind of processing of stalk fuel and collection system and method |
| CN110697805A (en) * | 2019-09-26 | 2020-01-17 | 杭州金溢建设集团有限公司 | River channel algae separation and bio-fertilizer treatment method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104212530A (en) * | 2014-09-25 | 2014-12-17 | 江南大学 | Method for producing solid fuel by exploding biomass waste through flue gas |
-
2018
- 2018-08-21 CN CN201810951551.4A patent/CN109135860A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104212530A (en) * | 2014-09-25 | 2014-12-17 | 江南大学 | Method for producing solid fuel by exploding biomass waste through flue gas |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109734483A (en) * | 2019-02-19 | 2019-05-10 | 安徽瑞虎肥业有限公司 | A kind of preprocess method of biomass fertilizers |
| CN110499200A (en) * | 2019-07-11 | 2019-11-26 | 西安交通大学 | A kind of processing of stalk fuel and collection system and method |
| CN110697805A (en) * | 2019-09-26 | 2020-01-17 | 杭州金溢建设集团有限公司 | River channel algae separation and bio-fertilizer treatment method |
| CN110697805B (en) * | 2019-09-26 | 2021-11-09 | 杭州金溢建设集团有限公司 | River channel algae separation and bio-fertilizer treatment method |
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