CN102140699A - Method for preparing ecological materials through steam explosion and refining of bamboo and recycling bamboo - Google Patents

Method for preparing ecological materials through steam explosion and refining of bamboo and recycling bamboo Download PDF

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CN102140699A
CN102140699A CN2011100342486A CN201110034248A CN102140699A CN 102140699 A CN102140699 A CN 102140699A CN 2011100342486 A CN2011100342486 A CN 2011100342486A CN 201110034248 A CN201110034248 A CN 201110034248A CN 102140699 A CN102140699 A CN 102140699A
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bamboo
vapour
fiber
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CN102140699B (en
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陈洪章
邱卫华
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Institute of Process Engineering of CAS
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Abstract

The invention belongs to the field of utilization of bamboo resources, relates to a method for preparing ecological materials through steam explosion and refining of bamboo and recycling the bamboo, and mainly aims to comprehensively utilize the bamboo resources in an environment-friendly high-value mode and co-produce biobased ecological materials such as bamboo fibers, a wood-plastic material and the like, and clean energy such as biogas and the like. The technical scheme comprises the following steps that: (1) the bamboo is subjected to steam explosion, and washed and filtered so as to obtain washing solution and a fiber material, and the washing solution is used for fermenting bioenergy such as the biogas, butanol and the like; (2) waste long fibers produced in the process of preparing the bamboo fibers from long fibers can be used for preparing the ecological materials such as the wood-plastic material, microcrystalline cellulose, dissolving pulp, liquefied polyether polyol and the like; and (3) short fibers are subjected to enzymolysis and fermentation for fermenting biological butanol, and also can be used for preparing the ecological materials such as the wood-plastic material, the liquefied polyether polyol and the like. Through the technical scheme, the utilization rate and the added value of the bamboo resources are high, and a bamboo refining process system is low in energy consumption, simple in process, clean and environment-friendly.

Description

The quick-fried refining of a kind of bamboo wood vapour prepares the method for ecomaterial and energy thereof
[technical field]
The invention belongs to bamboo timber resource and utilize the field, the quick-fried refining of particularly a kind of bamboo wood vapour prepares the method for ecomaterial and energy thereof.
[background technology]
Non-renewable fossil resource such as oil and natural gas has constituted the foundation stone of world today's fuel and chemical industry.But since 21 century, because fossil fuel is non-renewable, and fossil fuel uses environmental problems such as caused greenhouse effects, acid rain, dust pollution, from renewable plant resources particularly Wooden Biomass production chemical products with high added-value become the important development field of many countries and the focus of scientific research.The fundamental realities of the country of having a large population and a few land in view of China and the severe situation of worldwide energy crisis, development biomass resource trans-utilization technology, the exploitation bio-based energy, chemicals and material will provide strong guarantee to the resource security problem of China.
Bamboo is one of subfamily the most original in the grass, also is the diversified population of tool in the grass, the bamboo extensive growth in the Asia, Africa, Galle Latin American when, and enjoy high reputation in these areas.Bamboo is different from other equal plant with wooden stalk, compound branch, flourishing root system and the characteristics of seldom blooming, the bamboo stalk that can both grow several natural moulding every year, reach full growth and can come into operation.
China's bamboo resource is abundant, and plantation bamboo area ranks first in the world, and has 48 and belongs to, and kind more than 500 accounts for half of world's bamboo kind.Mao bamboon distributes the widest in China, the area of plantation mao bamboon reaches 2,700,000 hectares, accounts for 65% of bamboo grove area, and mao bamboon is a kind of perennial high megaphanerophyte, and it is distributed widely in middle subtropical zone.The mao bamboon growth is fast, the output height, and material is good, and purposes is wide, is the bamboo kind of China's economic worth maximum.The main component of mao bamboon comprises cellulose, hemicellulose and three kinds of compositions of lignin, these three kinds of components constitute the support frame of plant, wherein cellulose is formed microfibre, constitute the mesh skeleton of plant cell wall, hemicellulose and lignin then are " adhesives " and " filler " that is filled between the cellulose.The summation of cellulose, hemicellulose and three kinds of components of lignin accounts for about 85% of gross weight (dry weight) in the mao bamboon, and wherein content of cellulose is generally 35-50%, and hemicellulose level is generally 15-25%, and the content of lignin is generally about 20%.Except the three major types component, also contain a spot of protein, lipid, ash content, moisture, pectin, low molecular weight carbohydrate etc. in the bamboo wood.Wherein the content of ashes of bamboo is generally at 1-3%, and major part is a silica in the ash content.
As a kind of green, renewable, degradable resource fiber, the exploitation prospect of bamboo fibre is wide, thereby has received more and more people's concern.At present, its mode of utilizing mainly contains weaving bamboo fibre, papermaking and viscose bamboo pulp, fibre-forming polymer based composites reinforcing material.But the research that these utilize mode still to carry out at single cellulosic component utilization in the bamboo wood, the application of other resources lacks enough attention, has caused the bamboo timber resource utilization rate not high, and bamboo wood goods cost is high.
Mainly concentrate on the preparation and the development and use of bamboo fiber at present about the application of bamboo wood, Chinese invention patent CN1415790 for example, CN1406725, CN1375578, CN1390989, CN1083760, CN1621580A, CN1824851A etc. have all mentioned the employing chemical method, physics method or biological enzyme are produced bamboo fiber, but the method for being mentioned in these patents all is the utilization of only carrying out at the long fiber of function admirable in the bamboo wood, other a large amount of components go out of use or burned low value utilization, have not only caused a large amount of wastes of resource, and have caused the serious environmental pollution.Therefore, be necessary characteristics from bamboo material, comprehensive higher value application to bamboo timber resource carries out deep research, foundation is suitable for bamboo material refining technical system, both can realize the multicomponent complete utilization of bamboo wood, reduce the bamboo production cost of products, improve the added value of bamboo resource, can reduce the pollution that in the bamboo timber resource process, causes again.The inventor at this problem application patent of invention 200710177983.6, invented by the quick-fried technology of vapour and separated the method that component is fully used in the bamboo wood that makes in conjunction with long and short fiber, except obtaining purpose product bamboo fiber, simultaneously also coproduction products such as xylo-oligosaccharide, bamboo pulp, ethanol, pure molten lignin, residual residue generating, the pollution and the one-component that have overcome in traditional bamboo fiber production process utilize problem.On this basis, for the development and use with the bigger value of bamboo timber resource, the inventor has proposed a kind of new method that is prepared ecomaterial and energy thereof by the quick-fried refining of bamboo wood vapour.
[summary of the invention]
Main purpose of the present invention is to carry out environmental protection, high-valued comprehensive utilization at bamboo timber resource, develop novel bamboo application technology, formation is suitable for bamboo material refining technical system, the high-efficiency cleaning of realizing each component in the bamboo resource separates, not only obtain ecomaterials such as bamboo fiber, polyether polyol, Wood-plastic material, realize the energy of bamboo timber resource simultaneously.Thereby the maximum value utilization of each component in the realization bamboo timber resource improves the added value of bamboo wood, and reduces the pollution problem in the bamboo resource process.
Another object of the present invention provides a kind of enforcement system process of the present invention.
The main component of bamboo wood comprises cellulose, hemicellulose and three kinds of compositions of lignin, and existing bamboo utilization generally all is directly bamboo wood to be processed, and has caused the waste of bamboo timber resource.Adopt technical scheme provided by the invention, can realize the high value added utilization of various components in the bamboo wood, both can obtain bioenergies such as biogas, butanols, can obtain ecomaterials such as bamboo fibre, Wood-plastic material, polyether polyol again; And whole process flow does not have waste water, waste sludge discharge, meets the requirement of national energy-saving and emission-reduction.
The quick-fried refining of a kind of bamboo wood vapour provided by the invention prepares the method for ecomaterial and energy thereof, may further comprise the steps:
(1) bamboo wood preliminary treatment: after the bamboo wood process cleaning and tidying drying, make bamboo band; Dimension presses 5min to carry out the steam blasting preliminary treatment under the 12MPa saturated vapour pressure then;
(2) vapour firecracker material water lotion fermentation methane, butanols etc.: hemicellulose has been degraded in the bamboo wood after the quick-fried processing of vapour, washing, filtration obtain water lotion and fibre material, contain the low molecule carbohydrate that the hemicellulose degraded produces in the water lotion, can be used for the fermentation of biogas, butanols etc.; Fibre material after the washing is according to the length difference of vapour firecracker material fiber, adopts the fiber carding apparatus to realize the separation of long and short fiber, obtains less than the staple fibre of 5cm with greater than the long fiber of 5cm;
(3) long fiber prepares bamboo fiber and isolates useless long fiber: the vapour firecracker material long fiber purity that obtains step 2) is higher, the content of lignin, hemicellulose and pectin is all lower, therefore can directly enter the branch wire process, promptly adopt fiber to divide silk device that vapour firecracker material crude fibre is resolved into thinner fiber, and water flushing, collect the useless fiber that the relatively poor fiber of toughness produces in the decomposable process, the long fiber that toughness is stronger then prepares bamboo fiber through operations such as reduction, dehydration, softening, comb fibres;
(4) utilization of staple fibre: the staple fibre that obtains step 2) can be used to prepare ecomaterials such as Wood-plastic material, polyether polyol, also can the enzymatic hydrolysis and fermentation butanols etc. bioenergy;
(5) useless long stapled utilization: the relatively poor useless fiber of the toughness that obtains in the step 3) can be used for the preparation of dissolving pulp, microcrystalline cellulose, Wood-plastic material, liquefaction polyether polyol etc.
The quick-fried refining of a kind of bamboo wood vapour of the present invention prepares the method for ecomaterial and energy thereof, it is characterized in that, vapour firecracker material water lotion butanol fermentation condition is in the step (2): water lotion is through 7.5% active carbon, at 30 ℃, 150rpm regulates pH to 6.5 after handling 12h down, at 121 ℃ of 15min that sterilize down, to be cooled to room temperature, Clostridium acetobutylicum ATCC 824 seed culture mediums of access 10% (v/v), 37 ℃ of static anaerobism are cultivated.
The quick-fried refining of a kind of bamboo wood vapour of the present invention prepares the method for ecomaterial and energy thereof, it is characterized in that, the method that step (4) middle short fiber prepares Wood-plastic material is: staple fibre is prepared into the powder that particle diameter is 50~200 μ m through ultramicro grinding earlier, according to mass ratio 9: 1~1: 1 and plastic matrix mixing, on plastic extruding forming equipment, prepare wood with 120~200 ℃ and mould masterbatch then; Described plastic matrix comprises polyethylene (PE), polypropylene (PP), acrylonitrile/butadiene/styrene copolymer (ABS), polyvinyl chloride (PVC), polystyrene (PS) and reclaims goods.
The quick-fried refining of a kind of bamboo wood vapour of the present invention prepares the method for ecomaterial and energy thereof, it is characterized in that, the method that the liquefaction of step (4) middle short fiber prepares polyether polyol is: the mixture with polyethylene glycol and glycerine 9: 1 (w/w) is a liquefier, according to adding liquefier at 4: 1 with vapour firecracker material mass ratio, the concentrated sulfuric acid with 3.25% is a liquefier, at 160 ℃ of liquefaction 30min.
The quick-fried refining of a kind of bamboo wood vapour of the present invention prepares the method for ecomaterial and energy thereof, it is characterized in that, the method of step (4) middle short fiber enzymatic hydrolysis and fermentation butanols is: add cellulase solution according to 20IU FPA/g substrate, add water and regulate solid-to-liquid ratio 1: 20 (w/v), enzymolysis 48h in 50 ℃ of waters bath with thermostatic control, insert Clostridium acetobutylicum ATCC 824 seed culture mediums of 10% (v/v) in the enzymolysis liquid, 37 ℃ of static anaerobism are cultivated.
The quick-fried refining of a kind of bamboo wood vapour of the present invention prepares the method for ecomaterial and energy thereof, it is characterized in that, the method that useless long fiber prepares dissolving pulp in the step (5) is: at 170 ℃ of following prehydrolysis 120min, again with 10%NaOH (mass ratio) at 165 ℃ of boiling 90min, bleach according to ECF then.
The quick-fried refining of a kind of bamboo wood vapour of the present invention prepares the method for ecomaterial and energy thereof, it is characterized in that, the method of the useless fiber production microcrystalline cellulose that obtains in the step 3) is: 3% sodium sulfite, 4%HCl washes then, is drying to obtain at 90 ℃ of hydrolysis 60min.
The quick-fried refining of a kind of bamboo wood vapour of the present invention prepares the method for ecomaterial and energy thereof, it is characterized in that, the method that useless long fiber liquefaction prepares polyether polyol in the step (5) is: the mixture with polyethylene glycol and glycerine 9: 1 (w/w) is a liquefier, according to adding liquefier at 4: 1 with vapour firecracker material mass ratio, the concentrated sulfuric acid with 3.25% is a liquefier, at 160 ℃ of liquefaction 30min.
The present invention has following advantage:
1, the utilization rate height of bamboo timber resource, added value height, and bamboo wood refining process system cleanliness without any pollution: the present invention has constructed the ecological refining of the bamboo timber resource technical system that hemicellulose hydrolysate fermentation energy and fibre resources in the bamboo wood transform ecomaterial, the ecological high value of layered multi-stage that has realized bamboo resource transforms, improve the utilization rate and the added value of bamboo timber resource greatly, and adopted technical scheme of the present invention can realize the refuse zero-emission of the technological process of production.
2, adopt technical scheme of the present invention can save the operation and the corresponding energy consumption of ring and bamboo wood crushing, directly adopt bamboo band to carry out the quick-fried processing of vapour, effect such as reach joint in the quick-fried process of vapour, soften greatly reduces energy consumption;
3, traditional need be from the mao bamboon to the bamboo fibre through operation such as boiling, hydrolysis repeatedly, complicated operation, and energy consumption is higher, technical scheme provided by the invention can realize simultaneously coming unstuck by the quick-fried processing of vapour, hemicellulose degraded, fiber discongest softening etc., thereby can save operation, cut down the consumption of energy.
[description of drawings]
Fig. 1 is a technical scheme flow chart of the present invention.
[specific embodiment]
Embodiment 1
1. the quick-fried preliminary treatment of bamboo wood vapour: after the bamboo wood process cleaning and tidying drying, make bamboo band; Place the steam blasting treating apparatus, under the 12MPa saturated vapour pressure, keep 5min, the bamboo chip raw material is carried out the quick-fried processing of vapour;
2. vapour firecracker material water lotion biogas fermentation: total sugar content is about 23g/L in the vapour firecracker material water lotion, fibre material after the washing is according to the length difference of vapour firecracker material fiber, adopts the fiber carding apparatus to separate to obtain less than the staple fibre of 5cm with greater than the long fiber of 5cm; Add the 25ml activated sludge in the 100ml washing liquid glucose, the 0.1g beef extract is regulated pH to 6.5, in 50 ℃ of bottom fermentations, collects gas;
3. long fiber prepares bamboo fiber and isolates useless long fiber: adopt fiber to divide silk device that vapour firecracker material crude fibre is resolved into thinner fiber, obtain the stronger long fiber of toughness and prepare bamboo fiber through reducing, dewater, soften, comb operations such as fibre, dispersed useless long fiber is used for follow-up manufacturing procedure;
4. the preparation that useless long fiber and staple fibre wood are moulded masterbatch: useless long fiber and staple fibre, prepare wood with 180 ℃ and mould masterbatch according to mass ratio 1: 2 and polypropylene (PP) masterbatch mixing through ultramicro grinding to 100 μ m on plastic extruding forming equipment.
Embodiment 2
1. the quick-fried preliminary treatment of bamboo wood vapour: after the bamboo wood process cleaning and tidying drying, make bamboo band; Place the steam blasting treating apparatus, under the 12MPa saturated vapour pressure, keep 5min, the bamboo chip raw material is carried out the quick-fried processing of vapour;
2. vapour firecracker material water lotion butanol fermentation: total sugar content is about 23g/L in the vapour firecracker material water lotion, fibre material after the washing is according to the length difference of vapour firecracker material fiber, adopts the fiber carding apparatus to separate to obtain less than the staple fibre of 5cm with greater than the long fiber of 5cm; Water lotion through 7.5% active carbon at 30 ℃, after 150rpm handles 12h down, regulate pH to 6.5, at 121 ℃ of 15min that sterilize down, to be cooled to room temperature, insert Clostridium acetobutylicum ATCC 824 seed culture mediums of 10% (v/v), 37 ℃ of static anaerobism are cultivated, and fermentation 96h total solvent amount is 2.84g/L;
3. long fiber prepares bamboo fiber and isolates useless long fiber: adopt fiber to divide silk device that vapour firecracker material crude fibre is resolved into thinner fiber, obtain the stronger long fiber of toughness and prepare bamboo fiber through reducing, dewater, soften, comb operations such as fibre, dispersed useless long fiber is used for follow-up manufacturing procedure;
4. staple fibre liquefaction prepares polyether polyol: the mixture with polyethylene glycol and glycerine 9: 1 (w/w) is a liquefier, according to adding liquefier at 4: 1 with vapour firecracker material mass ratio, the concentrated sulfuric acid with 3.25% is a liquefier, at 160 ℃ of liquefaction 30min, obtaining hydroxyl value is 360mg/g, and viscosity is 342mPas.
5. useless long fiber prepares paper pulp: with 1% sodium metasilicate, 2% hydrogen peroxide, 2% NaOH is bleaching liquid, and 1: 15 (w/v) adds bleaching liquid according to solid-to-liquid ratio, bleaches 2h down for 70 ℃; And then with 1% sodium metasilicate, 1% hydrogen peroxide, 1% NaOH are bleaching liquid, add bleaching liquid according to 1: 10 (w/v) (former useless fiber by quality ratio) of solid-to-liquid ratio, bleach 1h down for 70 ℃, wash promptly, pulp yield and delignification rate are respectively 62.3%, 74.6%.
Embodiment 3
1. the quick-fried preliminary treatment of bamboo wood vapour: after the bamboo wood process cleaning and tidying drying, make bamboo band; Place the steam blasting treating apparatus, under the 12MPa saturated vapour pressure, keep 5min, the bamboo chip raw material is carried out the quick-fried processing of vapour;
2. vapour firecracker material water lotion biogas fermentation: total sugar content is about 23g/L in the vapour firecracker material water lotion, fibre material after the washing is according to the length difference of vapour firecracker material fiber, adopts the fiber carding apparatus to separate to obtain less than the staple fibre of 5cm with greater than the long fiber of 5cm; Add the 25ml activated sludge in the 100ml washing liquid glucose, the 0.1g beef extract is regulated pH to 6.5, in 50 ℃ of bottom fermentations, collects gas;
3. long fiber prepares bamboo fiber and isolates useless long fiber: adopt fiber to divide silk device that vapour firecracker material crude fibre is resolved into thinner fiber, obtain the stronger long fiber of toughness and prepare bamboo fiber through reducing, dewater, soften, comb operations such as fibre, dispersed useless long fiber is used for follow-up manufacturing procedure;
4. staple fibre prepares Wood-plastic material: staple fibre, prepares wood with 185 ℃ and moulds masterbatch according to mass ratio 1: 9 and acrylonitrile/butadiene/styrene copolymer (ABS) masterbatch mixing through ultramicro grinding to 50 μ m on plastic extruding forming equipment.
5. useless long fiber liquefaction preparation polyether polyol: the mixture with polyethylene glycol and glycerine 9: 1 (w/w) is a liquefier, according to adding liquefier at 4: 1 with vapour firecracker material mass ratio, the concentrated sulfuric acid with 3.25% is a liquefier, at 160 ℃ of liquefaction 30min, obtaining hydroxyl value is 342.5mg/g, and viscosity is 289.6mPas.
Embodiment 4
1. the quick-fried preliminary treatment of bamboo wood vapour: after the bamboo wood process cleaning and tidying drying, make bamboo band; Place the steam blasting treating apparatus, under the 12MPa saturated vapour pressure, keep 5min, the bamboo chip raw material is carried out the quick-fried processing of vapour;
2. vapour firecracker material water lotion butanol fermentation: total sugar content is about 23g/L in the vapour firecracker material water lotion, fibre material after the washing is according to the length difference of vapour firecracker material fiber, adopts the fiber carding apparatus to separate to obtain less than the staple fibre of 5cm with greater than the long fiber of 5cm; Water lotion through 7.5% active carbon at 30 ℃, after 150rpm handles 12h down, regulate pH to 6.5, at 121 ℃ of 15min that sterilize down, to be cooled to room temperature, insert Clostridium acetobutylicum ATCC 824 seed culture mediums of 10% (v/v), 37 ℃ of static anaerobism are cultivated, and fermentation 96h total solvent amount is 2.84g/L;
3. long fiber prepares bamboo fiber and isolates useless long fiber: adopt fiber to divide silk device that vapour firecracker material crude fibre is resolved into thinner fiber, obtain the stronger long fiber of toughness and prepare bamboo fiber through reducing, dewater, soften, comb operations such as fibre, dispersed useless long fiber is used for follow-up manufacturing procedure;
4. staple fibre prepares enzymatic hydrolysis and fermentation fuel butanols: add cellulase solution according to 20IU FPA/g substrate, add water and regulate solid-to-liquid ratio 1: 20 (w/v), enzymolysis 48h in 50 ℃ of waters bath with thermostatic control, insert Clostridium acetobutylicum ATCC 824 seed culture mediums of 10% (v/v) in the enzymolysis liquid, 37 ℃ of static anaerobism are cultivated, and fermentation 96h total solvent amount is 2.74g/L;
5. useless long fiber prepares microcrystalline cellulose: 1: 10 (w/v) adds 3% sodium sulfite according to solid-to-liquid ratio, and 4%HCl at 90 ℃ of hydrolysis 60min, washes, is drying to obtain microcrystalline cellulose then, and yield is 74.3%.
Embodiment 5
1. the quick-fried preliminary treatment of bamboo wood vapour: after the bamboo wood process cleaning and tidying drying, make bamboo band; Place the steam blasting treating apparatus, under the 12MPa saturated vapour pressure, keep 5min, the bamboo chip raw material is carried out the quick-fried processing of vapour;
2. vapour firecracker material water lotion biogas fermentation: total sugar content is about 23g/L in the vapour firecracker material water lotion, fibre material after the washing is according to the length difference of vapour firecracker material fiber, adopts the fiber carding apparatus to separate to obtain less than the staple fibre of 5cm with greater than the long fiber of 5cm; Add the 25ml activated sludge in the 100ml washing liquid glucose, the 0.1g beef extract is regulated pH to 6.5, in 50 ℃ of bottom fermentations, collects gas;
3. long fiber prepares bamboo fiber and isolates useless long fiber: adopt fiber to divide silk device that vapour firecracker material crude fibre is resolved into thinner fiber, obtain the stronger long fiber of toughness and prepare bamboo fiber through reducing, dewater, soften, comb operations such as fibre, dispersed useless long fiber is used for follow-up manufacturing procedure;
5. staple fibre prepares wood and moulds masterbatch: through ultramicro grinding to 20 μ m, according to mass ratio 1: 4 and polyvinyl chloride (PVC) masterbatch mixing, with 120 ℃ on plastic extruding forming equipment preparation wood mould masterbatch.
6. useless long fiber prepares dissolving pulp: at 170 ℃ of following prehydrolysis 120min, add 10%NaOH (mass ratio) at 1: 15 with solid-to-liquid ratio again, at 165 ℃ of boiling 90min, bleach according to ECF then, obtain alpha-cellulose content 88.29% in the dissolving pulp, the degree of polymerization 743, whiteness 84.2%, content of ashes 0.05%.
Embodiment 6
1. the quick-fried preliminary treatment of bamboo wood vapour: after the bamboo wood process cleaning and tidying drying, make bamboo band; Place the steam blasting treating apparatus, under the 12MPa saturated vapour pressure, keep 5min, the bamboo chip raw material is carried out the quick-fried processing of vapour;
2. vapour firecracker material water lotion butanol fermentation: total sugar content is about 23g/L in the vapour firecracker material water lotion, fibre material after the washing is according to the length difference of vapour firecracker material fiber, adopts the fiber carding apparatus to separate to obtain less than the staple fibre of 5cm with greater than the long fiber of 5cm; Water lotion through 7.5% active carbon at 30 ℃, after 150rpm handles 12h down, regulate pH to 6.5, at 121 ℃ of 15min that sterilize down, to be cooled to room temperature, insert Clostridium acetobutylicum ATCC 824 seed culture mediums of 10% (v/v), 37 ℃ of static anaerobism are cultivated, and fermentation 96h total solvent amount is 2.84g/L;
3. long fiber prepares bamboo fiber and isolates useless long fiber: adopt fiber to divide silk device that vapour firecracker material crude fibre is resolved into thinner fiber, obtain the stronger long fiber of toughness and prepare bamboo fiber through reducing, dewater, soften, comb operations such as fibre, dispersed useless long fiber is used for follow-up manufacturing procedure;
4. staple fibre prepares wood and moulds masterbatch: staple fibre is through ultramicro grinding to 75 μ m, according to mass ratio 1: 5 and polystyrene (PS) masterbatch mixing, with 200 ℃ on plastic extruding forming equipment preparation wood mould masterbatch.
5. useless long fiber preparation liquefaction preparation microcrystalline cellulose: 1: 10 (w/v) adds 3% sodium sulfite according to solid-to-liquid ratio, and 4%HCl washes, is drying to obtain microcrystalline cellulose then at 90 ℃ of hydrolysis 60min, and yield is 76.4%.

Claims (10)

1. the quick-fried refining of a kind of bamboo wood vapour provided by the invention prepares the method for ecomaterial and energy thereof, may further comprise the steps:
1) the quick-fried preliminary treatment of bamboo wood vapour: after the bamboo wood process cleaning and tidying drying, make bamboo band; Place the steam blasting treating apparatus, under the 12MPa saturated vapour pressure, keep 5min, the bamboo chip raw material is carried out the quick-fried processing of vapour;
2) fermentation of vapour firecracker material water lotion: hemicellulose is degraded in the bamboo wood after the quick-fried processing of vapour, and washing, filtration obtain water lotion and fibre material, and water lotion is used for the fermentation of biogas, butanols; Fibre material after the washing adopts the fiber carding apparatus to separate to obtain less than the staple fibre of 5cm with greater than the long fiber of 5cm;
3) long fiber prepares bamboo fiber and isolates useless long fiber: the vapour firecracker material long fiber that obtains step 2) adopts fiber to divide silk device that vapour firecracker material crude fibre is resolved into thinner fiber, and water flushing, collect the useless fiber that the relatively poor fiber of toughness produces in the decomposable process, the long fiber that toughness is stronger then prepares bamboo fiber through operations such as reduction, dehydration, softening, comb fibres;
4) utilization of staple fibre: the staple fibre that obtains step 2) is used to prepare ecomaterials such as Wood-plastic material, polyether polyol, also can enzymatic hydrolysis and fermentation ethanol, bioenergy such as butanols;
5) useless long stapled utilization: the useless fiber that obtains in the step 3) is used for the preparation of paper pulp, dissolving pulp, microcrystalline cellulose, Wood-plastic material, liquefaction polyether polyol etc.
2. the quick-fried refining of a kind of bamboo wood vapour according to claim 1 prepares the method for ecomaterial and energy thereof, it is characterized in that, step 2) vapour firecracker material water lotion biogas fermentation condition is in: water lotion 100ml adds 25ml activated sludge, 0.1g beef extract, 50 ℃ of bottom fermentations.
3. the quick-fried refining of a kind of bamboo wood vapour according to claim 1 prepares the method for ecomaterial and energy thereof, it is characterized in that, step 2) vapour firecracker material water lotion butanol fermentation condition is in: water lotion through 7.5% active carbon at 30 ℃, after 150rpm handles 12h down, regulate pH to 6.5, at 121 ℃ of 15min that sterilize down, to be cooled to room temperature, insert Clostridium acetobutylicum ATCC 824 seed culture mediums of 10% (v/v), 37 ℃ of static anaerobism are cultivated.
4. the quick-fried refining of a kind of bamboo wood vapour according to claim 1 prepares the method for ecomaterial and energy thereof, it is characterized in that, the method that the step 4) middle short fiber prepares Wood-plastic material is: staple fibre is prepared into the powder that particle diameter is 50~200 μ m through ultramicro grinding earlier, according to mass ratio 9: 1~1: 1 and plastic matrix mixing, on plastic extruding forming equipment, prepare wood with 120~200 ℃ and mould masterbatch then.
5. method according to claim 4 is characterized in that, plastic matrix comprises polyethylene, polypropylene, acrylonitrile/butadiene/styrene copolymer, polyvinyl chloride, polystyrene and recovery goods thereof.
6. the quick-fried refining of a kind of bamboo wood vapour according to claim 1 prepares the method for ecomaterial and energy thereof, it is characterized in that, the method that the liquefaction of step 4) middle short fiber prepares polyether polyol is: the mixture with polyethylene glycol and glycerine 9: 1 (w/w) is a liquefier, according to adding liquefier at 4: 1 with vapour firecracker material mass ratio, the concentrated sulfuric acid with 3.25% is a liquefier, at 160 ℃ of liquefaction 30min.
7. the quick-fried refining of a kind of bamboo wood vapour according to claim 1 prepares the method for ecomaterial and energy thereof, it is characterized in that, the method of step 4) middle short fiber enzymatic hydrolysis and fermentation butanols is: add cellulase solution according to 20IU FPA/g substrate, add water and regulate solid-to-liquid ratio 1: 20 (w/v), enzymolysis 48h in 50 ℃ of waters bath with thermostatic control, insert Clostridium acetobutylicum ATCC 824 seed culture mediums of 10% (v/v) in the enzymolysis liquid, 37 ℃ of static anaerobism are cultivated.
8. the quick-fried refining of a kind of bamboo wood vapour according to claim 1 prepares the method for ecomaterial and energy thereof, it is characterized in that, the method that useless long fiber prepares dissolving pulp in the step 5) is: at 170 ℃ of following prehydrolysis 120min, add 10%NaOH (mass ratio) at 1: 15 with solid-to-liquid ratio again, at 165 ℃ of boiling 90min, bleach according to ECF then.
9. the quick-fried refining of a kind of bamboo wood vapour according to claim 1 prepares the method for ecomaterial and energy thereof, it is characterized in that, the method that useless long fiber prepares microcrystalline cellulose in the step 5) is: 3% sodium sulfite, 4%HCl washes then, is drying to obtain at 90 ℃ of hydrolysis 60min.
10. the quick-fried refining of a kind of bamboo wood vapour according to claim 1 prepares the method for ecomaterial and energy thereof, it is characterized in that, the method that useless long fiber liquefaction prepares polyether polyol in the step 5) is: the mixture with polyethylene glycol and glycerine 9: 1 (w/w) is a liquefier, according to adding liquefier at 4: 1 with vapour firecracker material mass ratio, the concentrated sulfuric acid with 3.25% is a liquefier, at 160 ℃ of liquefaction 30min.
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CN104441574A (en) * 2014-12-03 2015-03-25 松原光禾能源有限公司 Preparation method of lignin foamed thermoplastic material
CN104479223A (en) * 2014-12-18 2015-04-01 广西大学 Wood-plastic composite prepared by use of short fiber and preparation method thereof
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CN106273302A (en) * 2016-08-23 2017-01-04 张海 A kind of preparation method of high-performance wood-plastic composite material
CN110183868A (en) * 2019-06-24 2019-08-30 长安大学 Application and sustainable modified pitch and preparation method of the Poplar Powder liquefaction products as sustainable asphalt modifier

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CN101497833A (en) * 2009-03-03 2009-08-05 安徽六安市春成绿色化工有限公司 Production process for producing biobase natural gas with coproduction of lignose and microcrystalline cellulose from bamboo processing wastes

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CN102925496A (en) * 2012-11-23 2013-02-13 上海中科高等研究院 Method for fermentation production of butyl alcohol by utilizing cellulose and hemicellulose in bamboos
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CN106273302A (en) * 2016-08-23 2017-01-04 张海 A kind of preparation method of high-performance wood-plastic composite material
CN106283793A (en) * 2016-09-21 2017-01-04 东莞市联洲知识产权运营管理有限公司 Bamboo fiber that a kind of nano-cellulose is whisker modified and preparation method thereof
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CN110183868A (en) * 2019-06-24 2019-08-30 长安大学 Application and sustainable modified pitch and preparation method of the Poplar Powder liquefaction products as sustainable asphalt modifier

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