CN107502626A - A kind of Application way of wood fibre residue - Google Patents
A kind of Application way of wood fibre residue Download PDFInfo
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- CN107502626A CN107502626A CN201710732676.3A CN201710732676A CN107502626A CN 107502626 A CN107502626 A CN 107502626A CN 201710732676 A CN201710732676 A CN 201710732676A CN 107502626 A CN107502626 A CN 107502626A
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- wood fibre
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P7/00—Preparation of oxygen-containing organic compounds
- C12P7/02—Preparation of oxygen-containing organic compounds containing a hydroxy group
- C12P7/04—Preparation of oxygen-containing organic compounds containing a hydroxy group acyclic
- C12P7/06—Ethanol, i.e. non-beverage
- C12P7/08—Ethanol, i.e. non-beverage produced as by-product or from waste or cellulosic material substrate
- C12P7/10—Ethanol, i.e. non-beverage produced as by-product or from waste or cellulosic material substrate substrate containing cellulosic material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G8/00—Condensation polymers of aldehydes or ketones with phenols only
- C08G8/28—Chemically modified polycondensates
- C08G8/34—Chemically modified polycondensates by natural resins or resin acids, e.g. rosin
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J161/00—Adhesives based on condensation polymers of aldehydes or ketones; Adhesives based on derivatives of such polymers
- C09J161/04—Condensation polymers of aldehydes or ketones with phenols only
- C09J161/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
- C09J161/14—Modified phenol-aldehyde condensates
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P19/00—Preparation of compounds containing saccharide radicals
- C12P19/14—Preparation of compounds containing saccharide radicals produced by the action of a carbohydrase (EC 3.2.x), e.g. by alpha-amylase, e.g. by cellulase, hemicellulase
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P2201/00—Pretreatment of cellulosic or lignocellulosic material for subsequent enzymatic treatment or hydrolysis
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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
Abstract
The present invention be on a kind of Application way of wood fibre residue, including, step 1：Wood fibre residue is split as the first component and the second component, lignin is included in the first described component, cellulose is included in the second described component, described wood fibre residue is the discarded object comprising lignin and cellulose；Step 2：Described the first component and the second component are prepared into high value added product respectively.The application is separated the lignin component in wood fibre residue and cellulosic component, and is utilized respectively, is avoided influencing each other for lignin and cellulose, is improved the obtained quality of product, meanwhile, improve the utilization rate of wood fibre residue.
Description
Technical field
It is high-valued sharp again more particularly to a kind of wood fibre residue the present invention relates to wood fiber biomass refining art
Use method.
Background technology
Wood fiber biomass cell membrane is mainly made by cellulose, hemicellulose and lignin by the physical chemistry of complexity
With combining.The composite construction of formation provides physical strength for plant, and the transport for moisture and nutrient provides bar
Part.In addition, the composite construction also makes plant from external environment and biological attack.However, the protection that the composite construction provides
Act on during biorefinery becomes anti-degraded barrier on the contrary.Conversion to wood fiber biomass causes certain
It is difficult, it is difficult to be directly realized by full group and efficiently utilize.
Furfural, xylose, bio-ethanol production can a large amount of wood fibre residue rich in cellulose and lignin of association.
1 ton of furfural is often produced by the waste residue of about 8 tons or so of association.1 ton of ethanol is often produced by the waste residue of about 5 tons or so of association.Therefore, often
Caused wood fibre level of residue is very big year from associated production activity.To improve the macroeconomic of biorefinery industry effect
Benefit, it is necessary to recycled to this part residue.At this stage, most enterprises reclaim wood fibre residue as fuel combustion
Heat energy.However, oxygen content is higher in wood fibre residue, calorific value is limited, and therefore, it is not a kind of preferable fuel.It is wooden
Cellulose and hemicellulose in fiber residue are used equally for the preparation of high valuable chemicals and material.Research in this respect and
Patent report is a lot of.However, when being directly translated into specific products, lignin and cellulose coexist and mutual work
Problems are brought with preparation and product application of the meeting to material or chemicals.Therefore, directly material is prepared with wood fibre residue
The method poor feasibility of material and chemicals.
The content of the invention
It is a primary object of the present invention to, there is provided a kind of Application way of wood fibre residue, technology to be solved are asked
Topic is that wood fibre residue is split as into lignin component and cellulosic component, by obtained lignin component and cellulose group
Point trans-utilization is carried out respectively, avoid two components when mixing utilizes and interfere with each other and the problem of recontamination, be that wood fibre is residual
Slag higher value application provides practicable method；Meanwhile also to realize that biomass full constituent higher value application provides skill
Art guarantee, trans-utilization rate is effectively raised, thus more suitable for practicality.
The object of the invention to solve the technical problems is realized using following technical scheme.
According to a kind of Application way of wood fibre residue proposed by the present invention, including,
Step 1：Wood fibre residue is split as the first component and the second component, the first described component is lignin
Component, the second described component are cellulosic component；Step 2：Described the first component and the second component are prepared into height respectively
Value-added product, described wood fibre residue are the discarded object comprising lignin and cellulose.
The object of the invention to solve the technical problems can be also applied to the following technical measures to achieve further.
Preferably, the Application way of foregoing a kind of wood fibre residue, wherein described wood fibre residue includes second
Combinations more than one or both of alcohol fermentation residue, butanol fermentation residue, xylose residue or furfural dregs.
Preferably, the Application way of foregoing a kind of wood fibre residue, wherein described high value added product is biology
Ethanol, microcrystalline cellulose or lignin-base phenolic resin adhesive.
Preferably, the Application way of foregoing a kind of wood fibre residue, wherein it is described the step of one in method for splitting
For described wood fibre residue is mixed with sodium hydrate aqueous solution or potassium hydroxide aqueous solution, obtains the mixing of the first solid-liquid
Thing, the mass ratio of solid and liquid is 1: 5-1: 20 in the first described solidliquid mixture；It is extracted, obtain the second solid-liquid and mix
Compound, Extracting temperature are 60-100 DEG C, time 0.5-4.0h；The second described solidliquid mixture is subjected to separation of solid and liquid, obtained
To liquid component and solid constituent, described liquid component is the first described component, and described solid constituent is described the
Two components.
Preferably, the Application way of foregoing a kind of wood fibre residue, wherein described sodium hydroxide or potassium hydroxide
The concentration of the aqueous solution is 0.1-8.0wt%.
Preferably, the Application way of foregoing a kind of wood fibre residue, by the first described component in the basic conditions
Phenolate processing is carried out, obtains the first product, the method for described phenolate processing is to mix phenol with the first described component,
The mass ratio of described phenol and lignin in the first described component is 1: 1-10: 1, and the time of described phenolate processing is
0.5-4h；The first described product is mixed with formalin, sodium hydroxide, reacts, obtains lignin-base phenolic resin gluing
Agent, wherein, the mol ratio of described formaldehyde and described phenol is 1.8: 1-2.4: 1, described sodium hydroxide (in terms of solid)
Quality be the 25-35% of described phenol and described lignin gross mass, the temperature of reaction is 80-90 DEG C, time 2-
4h。
Preferably, the Application way of foregoing a kind of wood fibre residue, by described the second component enzymolysis, fermentation, divide
From, bio-ethanol is obtained, wherein, described enzyme solution is that it is 5- that the second described component is prepared into weight/mass percentage composition
15% mixed slurry (other components of mixed slurry are water), cellulase is added into described mixed slurry, described
The addition of cellulase is the components of 5-20FPU/g second, and the temperature of enzyme digestion reaction is 37-50 DEG C, time 1-4h；Described
In fermentation process, the addition of yeast is the components of 0.005-0.015g/g second, and fermentation temperature is 37-45 DEG C, time 30-
48h；By tunning separation of solid and liquid, obtained liquid component is bio-ethanol, isolated solid constituent is used for wooden
The preparation of plain base phenolic resin adhesive.
Preferably, the Application way of foregoing a kind of wood fibre residue, by the second described component through bleaching, is obtained
To bleaching product, described bleaching product obtains hydrolysed mix through acidic hydrolysis, wherein, the bleaching liquid of bleaching was
Hydrogen oxide, pH 11.5-12.5, concentration of hydrogen peroxide 1-3wt%, the temperature of bleaching is 45-55 DEG C, time 12-
The mass ratio of 16h, the second component and bleaching liquid is 1: 15-1: 30；The method of acidic hydrolysis is, by bleaching product in 1-4N sulphur
Hydrolyzed in acid or 3-15N aqueous hydrochloric acid solution, hydrolysis temperature is 80-100 DEG C, and time 1-4h, described bleaching product is used for
The preparation of microcrystalline cellulose and/or bio-ethanol；And/or described hydrolysed mix is used for microcrystalline cellulose and/or biological second
The preparation of alcohol.
Preferably, the Application way of foregoing a kind of wood fibre residue, described hydrolysed mix is separated, obtains the
One solid and the first liquid, the first described solid is cleaned to neutrality, after drying, ball milling, obtain microcrystalline cellulose, it is described
Drying temperature be 60-80 DEG C, time 12-18h, described Ball-milling Time is 1-4h；By the first described liquid concentration, in
With, obtain neutralizing hydrolysis liquid, into described neutralizing hydrolysis liquid add yeast fermentation, the addition of yeast is 0.00 5-
0.015g/g neutralizing hydrolysis liquid, fermentation temperature are 37-45 DEG C, time 30-48h, and the zymotic fluid that fermentation is obtained distills, and obtains
Described bio-ethanol.
Preferably, the Application way of foregoing a kind of wood fibre residue, described bleaching product is digested, enzyme solution
For described bleaching product to be configured to 10-30% mixture (adding water to configure), cellulase is added into mixture, institute
The addition for the cellulase stated is that 5-15FPU/g bleaches product, and hydrolysis temperature is 40-50 DEG C, time 12-18h, will be digested
Obtained enzymolysis product separation of solid and liquid, obtains the second solid and second liquid, by described the second solid cleaning, dries, ball milling,
Microcrystalline cellulose is obtained, yeast fermentation is added into described second liquid, distillation, obtains bio-ethanol, wherein, described drying
Temperature be 60-80 DEG C, time 12-18h, described Ball-milling Time is 1-4h；Described fermentation temperature is 37-45 DEG C, when
Between be 30-48h.
By above-mentioned technical proposal, a kind of Application way of wood fibre residue provided by the invention, at least with following
Advantage：
The present invention is creatively proposed by being split the constituent of wood fibre residue and converting respectively
Land use models.The transformation mode avoids wood fibre residue and prepares mutual interference problem and dirt again between the component run into during single raw material
Dye problem.Practicable method is provided for wood fibre residue higher value application.Meanwhile also to realize biomass full constituent
Higher value application provides powerful guarantee.Most wood fibre residues can effectively be converted by the pattern.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, below with presently preferred embodiments of the present invention and coordinate accompanying drawing describe in detail as after.
Brief description of the drawings
A kind of maize straw segmentation Utilization Mode schematic diagram of Fig. 1 embodiment of the present invention.
Embodiment
Further to illustrate the present invention to reach the technological means and effect that predetermined goal of the invention is taken, below in conjunction with
Accompanying drawing and preferred embodiment, to according to a kind of Application way of wood fibre residue proposed by the present invention, its embodiment,
Structure, feature and its effect, describe in detail as after.In the following description, different " embodiment " or " embodiment " refers to not
It must be the same embodiment.In addition, the special characteristic, structure or feature in one or more embodiments can be by any suitable form groups
Close.
It should be noted that " wood fibre residue " of the present invention is the residue for including lignin and cellulose,
Including any one in residue residue fermentation residue (from ethanol and production of butanol), xylose residue, xylo-oligosaccharide slag and furfural dregs
In or it is several.
High value added product of the present invention, added value therein, i.e. surcharge, surcharge are that enterprise passes through life
The value that production process is newly increased, the raw material used in the present invention are residue, and residue is made full use of, improves wood fibre
The surcharge of residue.
It is of the present invention that " quality of sodium hydroxide is described phenol and the 25- of described lignin gross mass
35% ", gross mass therein, for the quality sum of lignin in phenol and the first component, sodium hydroxide is described gross mass
25-35%.
Wood fibre residue is split into " lignin component " and " cellulose group by the present invention by specific method for splitting
Point ", " lignin component " herein is mixture, not only includes lignin；" cellulosic component " herein is mixture, and
It is non-only to include cellulose.
Embodiment 1
A kind of maize straw segmentation comprehensive utilization is present embodiments provided, as shown in Figure 1.
Fermentation residue caused by maize straw bio-ethanol process is dense by 1: 10 solid-to-liquid ratio and 0.5% sodium hydroxide
The aqueous solution mixing of degree.Then, it is sufficiently mixed 2h at 90 DEG C.Mixed liquor is subjected to separation of solid and liquid in a manner of filtering.Liquid
For the component rich in lignin, solid is the component rich in cellulose.
The residue that will be enriched in lignin carries out phenolate processing under pH=11 alkalescence condition.During phenolate, phenol is with being rich in
The mass ratio of Vinsol is 1: 1 in the component of lignin, phenolate reaction time 1h.Then product will be handled with formaldehyde according to mixed
Close, the mol ratio of formaldehyde and phenol used in phenolate step is 2: 1.Phenol and lignin quality are added after product is well mixed
30% sodium hydroxide.Mixed system is warming up to 80 DEG C, and insulation reaction 3h at this temperature, obtains lignin-base phenolic resin
Adhesive.
The component that will be enriched in cellulose is made into the slurry that concentration of substrate is 10%.Then enzyme hydrolysis is carried out, cellulase is used
Measure as 15FPU/g substrates.Digest 2h in advance under conditions of 45 DEG C.Then yeast is added in system, inoculum of dry yeast is
0.01g/g substrates.Above-mentioned system is fermented 36h at 37 DEG C.After separating alcohol is completed in fermentation, remaining fermentation residue is used to close
Into lignin-base phenolic resin adhesive.Synthesis technique synthesizes lignin-base phenolic aldehyde with raw material proportioning with the component rich in lignin
It is identical during Resin adhesive.
The lignin-base phenolic resin adhesive properties of the present embodiment are tested, are as a result listed in table 1.Utilize the present embodiment
The lignin-base phenolic resin adhesive compacting poplar three-layer glued board of preparation, tests its performance, is as a result listed in table 1.
Embodiment 2
Fermentation residue caused by maize straw bio-ethanol process is dense by 1: 10 solid-to-liquid ratio and 1.0% sodium hydroxide
The aqueous solution mixing of degree.Then, it is sufficiently mixed 4h at 90 DEG C.Mixed liquor is subjected to separation of solid and liquid in a manner of filtering.Liquid
For the component rich in lignin, solid is the component rich in cellulose.
The residue that will be enriched in lignin carries out phenolate processing under pH=11 alkalescence condition.During phenolate, phenol is with being rich in
The mass ratio of Vinsol is 1: 1 in the component of lignin, phenolate reaction time 2h.Then product will be handled with formaldehyde according to mixed
Close, the mol ratio of formaldehyde and phenol used in phenolate step is 2.2: 1.Phenol and wooden quality are added after product is well mixed
The sodium hydroxide of amount 30%.Mixed system is warming up to 90 DEG C, and insulation reaction 2.5h at this temperature, obtains lignin-base phenolic aldehyde
Resin adhesive.
The component of fiber-rich element is bleached into (pH=12 with alkaline hydrogen peroxide；H2O2Concentration is 2%；Under the conditions of 45 DEG C
Handle 12h；Solid-to-liquid ratio is 1: 25).Bleaching product is directly subjected to enzyme hydrolysis, bleaching product is made into concentration of substrate first is
10% mixture.Then enzyme hydrolysis is carried out, cellulase dosage is 10FPU/g substrates.2h is digested under conditions of 45 DEG C.So
After carry out separation of solid and liquid, after solid fiber is fully cleaned, at 60 DEG C dry 12h.It will be obtained after desciccate ball milling 2h micro-
Crystalline cellulose.Yeast is added in the hydrolyzate that enzyme hydrolysis obtains, inoculum of dry yeast is 0.005g/g substrates, is fermented at 37 DEG C
After 36h, distillation obtains ethanol.
The lignin-base phenolic resin adhesive properties of the present embodiment are tested, are as a result listed in table 1.Utilize the present embodiment
The lignin-base phenolic resin adhesive compacting poplar three-layer glued board of preparation, tests its performance, is as a result listed in table 1.
Obtained microcrystalline cellulose property test result is listed in table 2 in the present embodiment.
The lignin-base phenolic resin adhesive characteristic of table 1 and the plywood character of preparation
aThe lignin-base phenolic resin adhesive prepared by the component rich in lignin
bThe lignin-base phenolic resin adhesive prepared by fermentation residue
Strength of Plywood is the arithmetic mean of instantaneous value of the testing result of 14 test specimens in table 1.
The detection of adhesive：Solid content, viscosity and pH are carried out according to the regulation in GB/T 14074-2006.
Glued board is three layers of poplar plywood, and veneer spread is 280g/m2~316g/m2, hot pressing temperature is 145 DEG C, heat
Pressure pressure is 1MPa, hot pressing time 1.5min/mm.
Glued board detects：The glued board room temperature of compacting detects after placing 5~7 days.It is fast by I classes plate in GB/T9846-2004
Fast detection method boils 3h in boiling water, and the result measured is multiplied by coefficient 0.9；Burst size of methanal is pressed in GB/T 17657-2013
Condensed steam water is detected as defined in 4.12.
The property of the microcrystalline cellulose obtained in the embodiment 2 of table 2
| The degree of polymerization | Whiteness/% | Crystallinity/% |
| 152 | 87.7 | 69.9 |
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and does not have the portion being described in detail in some embodiment
Point, it may refer to the associated description of other embodiment.
It is understood that the correlated characteristic in said apparatus can be referred to mutually.In addition, in above-described embodiment " the
One ", " second " etc. is to be used to distinguish each embodiment, and does not represent the quality of each embodiment.
In the specification that this place provides, numerous specific details are set forth.It is to be appreciated, however, that the implementation of the present invention
Example can be put into practice in the case of these no details.In some instances, known structure and skill is not been shown in detail
Art, so as not to obscure the understanding of this description.
Similarly, it will be appreciated that in order to simplify the disclosure and help to understand one or more of each inventive aspect,
Above in the description to the exemplary embodiment of the present invention, each feature of the invention is grouped together into single implementation sometimes
In example, figure or descriptions thereof.However, the device of the disclosure should be construed to reflect following intention：I.e. required guarantor
The application claims of shield features more more than the feature being expressly recited in each claim.It is more precisely, such as following
Claims reflect as, inventive aspect is all features less than single embodiment disclosed above.Therefore,
Thus the claims for following embodiment are expressly incorporated in the embodiment, wherein each claim is in itself
Separate embodiments all as the present invention.
In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments
In included some features rather than further feature, but the combination of the feature of different embodiments means in of the invention
Within the scope of and form different embodiments.For example, in the following claims, embodiment claimed is appointed
One of meaning mode can use in any combination.The present invention all parts embodiment can be realized with hardware, or
Realized with combinations thereof.
It should be noted that the present invention will be described rather than limits the invention for above-described embodiment, and ability
Field technique personnel can design alternative embodiment without departing from the scope of the appended claims.In the claims,
Any reference symbol between bracket should not be configured to limitations on claims.Word "comprising" does not exclude the presence of not
Part or component listed in the claims.Word "a" or "an" before part or component does not exclude the presence of multiple
Such part or component.The present invention can realize by means of including the device of some different parts.It is some listing
In the claim of part, several in these parts can be embodied by same part item.Word first,
Second and third use do not indicate that any order.These words can be construed to title.
Heretofore described number range includes numerical value all in the range of this, and including any two in the range of this
The value range of numerical value composition.For example, " Extracting temperature is 60-100 DEG C ", this number range includes number all between 60-100
Value, and including any two numerical value in the range of this (such as：70th, the value range (70-80) 80) formed；All implementations of the present invention
The different numerical value of the same index occurred in example, can in any combination, compositing range value.
Technical characteristic in the claims in the present invention and/or specification can be combined, and its combination is not limited to weigh
The combination that profit is obtained in requiring by adduction relationship.It is combined by the technical characteristic in claim and/or specification
The technical scheme arrived, and protection scope of the present invention.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, according to
Any simple modification, equivalent change and modification made according to the technical spirit of the present invention to above example, still falls within this hair
In the range of bright technical scheme.
Claims (10)
- A kind of 1. Application way of wood fibre residue, it is characterised in that：Including,Step 1：Wood fibre residue is split as the first component and the second component, the first described component is lignin component, The second described component is cellulosic component；Step 2：Described the first component and the second component are prepared into high value added product respectively.
- A kind of 2. Application way of wood fibre residue according to claim 1, it is characterised in that：Described wood fibre residue includes ethanol fermentation residue, butanol fermentation residue, xylose residue, xylo-oligosaccharide slag or furfural dregs In any one or a few combination.
- A kind of 3. Application way of wood fibre residue according to claim 1, it is characterised in that：Described high value added product is bio-ethanol, microcrystalline cellulose or lignin-base phenolic resin adhesive.
- A kind of 4. Application way of wood fibre residue according to claim 1, it is characterised in that：Method for splitting in described step one is, by described wood fibre residue and sodium hydrate aqueous solution or potassium hydroxide The aqueous solution mixes, and obtains the first solidliquid mixture, and the mass ratio of solid and liquid is 1 in the first described solidliquid mixture: 5-1∶20；It is extracted, the second solidliquid mixture is obtained, Extracting temperature is 60-100 DEG C, time 0.5-4.0h；By described Two solidliquid mixtures carry out separation of solid and liquid, obtain liquid component and solid constituent, and described liquid component is described first group Point, described solid constituent is the second described component.
- A kind of 5. Application way of wood fibre residue according to claim 4, it is characterised in that：Described sodium hydroxide or the concentration of potassium hydroxide aqueous solution are 0.1-8.0wt%.
- A kind of 6. Application way of wood fibre residue according to claim 1, it is characterised in that：The first described component is subjected to phenolate processing in the basic conditions, obtains the first product, the side of described phenolate processing Method is to mix phenol with the first described component, and the mass ratio of described phenol and lignin in the first described component is 1 : 1-10: 1, the time of described phenolate processing is 0.5-4h；The first described product is mixed with formalin, sodium hydroxide, reacts, obtains lignin-base phenolic resin adhesive, Wherein, the mol ratio of described formaldehyde and described phenol is 1.8: 1-2.4: 1, and the quality of described sodium hydroxide is described Phenol and the 25-35% of described lignin gross mass, the temperature of reaction is 80-90 DEG C, time 2-4h.
- A kind of 7. Application way of wood fibre residue according to claim 1, it is characterised in that：By described the second component enzymolysis, fermentation, separation, bio-ethanol is obtained,Wherein, described enzyme solution is that the second described component is prepared into the mixing slurry that weight/mass percentage composition is 5-15% Material, cellulase is added into described mixed slurry, and the addition of described cellulase is the components of 5-20FPU/g second, The temperature of enzyme digestion reaction is 37-50 DEG C, time 1-4h；In described fermentation process, the addition of yeast is the components of 0.005-0.015g/g second, and fermentation temperature is 37-45 DEG C, Time is 30-48h；By tunning separation of solid and liquid, obtained liquid component is bio-ethanol, isolated solid constituent is used for wooden The preparation of plain base phenolic resin adhesive.
- A kind of 8. Application way of wood fibre residue according to claim 1, it is characterised in that：By the second described component through bleaching, obtain bleaching product, described bleaching product is hydrolyzed through acidic hydrolysis Mixture, wherein, the bleaching liquid of bleaching is hydrogen peroxide, pH 11.5-12.5, concentration of hydrogen peroxide 1-3wt%, is floated The temperature handled in vain is 45-55 DEG C, time 12-16h, and the mass ratio of the second component and bleaching liquid is 1: 15-1: 30；It is acid The method of hydrolysis is to hydrolyze bleaching product in 1-4N sulfuric acid or 3-15N aqueous hydrochloric acid solution, hydrolysis temperature 80-100 DEG C, time 1-4h,Described bleaching product is used for the preparation of microcrystalline cellulose and/or bio-ethanol；And/orDescribed hydrolysed mix is used for the preparation of microcrystalline cellulose and/or bio-ethanol.
- A kind of 9. Application way of wood fibre residue according to claim 8, it is characterised in that：Described hydrolysed mix is separated, the first solid and the first liquid is obtained, the first described solid is cleaned to neutrality, After drying, ball milling, microcrystalline cellulose is obtained, described drying temperature is 60-80 DEG C, time 12-18h, described ball milling Time is 1-4h；By the first described liquid concentration, neutralize, obtain neutralizing hydrolysis liquid, yeast hair is added into described neutralizing hydrolysis liquid Ferment, the addition of yeast is 0.005-0.015g/g neutralizing hydrolysis liquid, and fermentation temperature is 37-45 DEG C, time 30-48h, will be sent out The zymotic fluid distillation that ferment obtains, obtains described bio-ethanol.
- A kind of 10. Application way of wood fibre residue according to claim 8, it is characterised in that：Described bleaching product is digested, enzyme solution is that described bleaching product is configured to 10-30% mixture, to Cellulase is added in mixture, the addition of described cellulase bleaches product, hydrolysis temperature 40- for 5-15FPU/g 50 DEG C, time 12-18h, the enzymolysis product separation of solid and liquid that enzymolysis is obtained, the second solid and second liquid are obtained, by described in The second solid cleaning, dry, ball milling, obtain microcrystalline cellulose, into described second liquid add yeast fermentation, distillation, Obtain bio-ethanol,Wherein, the temperature of described drying is 60-80 DEG C, and time 12-18h, described Ball-milling Time is 1-4h；Described fermentation temperature is 37-45 DEG C, time 30-48h.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110734942A (en) * | 2019-10-24 | 2020-01-31 | 淮阴工学院 | Method for improving enzymolysis saccharification effect by pretreating xylose residues |
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| CN101413016A (en) * | 2008-12-03 | 2009-04-22 | 北京林业大学 | Method for preparing microcrystalline cellulose and cellulose fuel ethanol by separating furfural residue |
| CN102002875A (en) * | 2010-10-23 | 2011-04-06 | 吉林大学 | Method for preparing microcrystalline cellulose by using carrot pomace |
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