CN109337937A - A method of utilizing tetrahydrofurfuryl alcohol preprocessing lignocellulose - Google Patents
A method of utilizing tetrahydrofurfuryl alcohol preprocessing lignocellulose Download PDFInfo
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- CN109337937A CN109337937A CN201811367421.2A CN201811367421A CN109337937A CN 109337937 A CN109337937 A CN 109337937A CN 201811367421 A CN201811367421 A CN 201811367421A CN 109337937 A CN109337937 A CN 109337937A
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- tetrahydrofurfuryl alcohol
- preprocessing lignocellulose
- fermentation
- enzymatic hydrolysis
- alcohol
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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
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/10—Animal feeding-stuffs obtained by microbiological or biochemical processes
- A23K10/12—Animal feeding-stuffs obtained by microbiological or biochemical processes by fermentation of natural products, e.g. of vegetable material, animal waste material or biomass
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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
- 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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- 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
- C12P7/16—Butanols
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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
- C12P7/40—Preparation of oxygen-containing organic compounds containing a carboxyl group including Peroxycarboxylic acids
- C12P7/44—Polycarboxylic acids
- C12P7/46—Dicarboxylic acids having four or less carbon atoms, e.g. fumaric acid, maleic acid
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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
- C12P2201/00—Pretreatment of cellulosic or lignocellulosic material for subsequent enzymatic treatment or hydrolysis
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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
- C12P2203/00—Fermentation products obtained from optionally pretreated or hydrolyzed cellulosic or lignocellulosic material as the carbon source
-
- 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 provides a kind of methods using tetrahydrofurfuryl alcohol preprocessing lignocellulose, it comprises the following steps that first, raw material are after crushing, being sieved, it is pre-processed with tetrahydrofurfuryl alcohol and is filtered after a certain period of time under certain condition, filter residue is washed, enzymatic hydrolysis and fermentation test is carried out after drying, the present invention uses the tetrahydrofurfuryl alcohol that can be transformed by biomass for raw material as the pretreated novel dissolvent of biomass for the first time, shortens the biomass pretreated time, improves the efficiency of biomass enzymatic hydrolysis and fermentation.
Description
Technical field
The present invention relates to biomass preconditioning technique fields, and in particular to a kind of to pre-process wood fibre using tetrahydrofurfuryl alcohol
The method of element.
Background technique
With economic rapid development, the mankind increasingly increase the demand of the energy, due to fossil resources bring greenhouse
The effect and reserves of its own are limited, drawbacks, the consumption if things go on like this such as non-renewable will necessarily cause worldwide energy
Source crisis.And biomass energy is as emerging renewable energy, reserves are very rich, and fossil resources are substituted with it, are solutions
Certainly inevitable means of human environment, resource and energy problem from now on.
Lignocellulosic is mainly made of cellulose, hemicellulose and lignin, and wherein cellulose is by β-D-Glucose
By chain heteromorphic polymer made of β-Isosorbide-5-Nitrae glucosides key connection, the glucose for hydrolyzing generation, which can ferment, generates ethyl alcohol.Though
Right wood fiber biomass has always been considered as being sustainable resource that diastatic fermentation production prepares bio-fuel and other chemicals,
But it is very low in no conversion ratio by the cellulose before processing, main cause is exactly that its biology and chemical structure are answered
Polygamy.Plant cell wall is usually by cellulose fibril and to swathe hemicellulose around it, lignin and lower contain first
The bedded substance of the pectin composition of amount, cellulose mainly forms the structural framing of cell wall, and hemicellulose and lignin then fill
When cellulose interstitial " filler " and " adhesive ".Secondly mutually existing between cellulose, hemicellulose, lignin
Chemical bond.The most typical one is exactly the hydrogen bond connection between cellulose and hemicellulose, between lignin and hemicellulose
Lignin-carbohydrate complex by the connection of the chemical bonds such as ehter bond, acetal bonds, ester bond, carbon-carbon bond to be formed
(LCC).These complicated structures are the major obstacles of lignocellulosic enzymatic hydrolysis improved efficiency.
Summary of the invention
Aiming at the problems existing in the prior art, tetrahydrofurfuryl alcohol preprocessing lignocellulose is utilized the present invention provides a kind of
Method, effectively compensate for defect of the existing technology.
The invention discloses a kind of methods using tetrahydrofurfuryl alcohol preprocessing lignocellulose.Mainly utilize tetrahydrofurfuryl alcohol
Break the cross-linked structure of lignocellulosic complexity itself under certain condition, destroy the chemical bond between lignin and hemicellulose,
Lignin and hemicellulose are removed, to increase the binding site of cellulase and cellulose, promotes the enzymatic hydrolysis effect of cellulase
Rate.
In order to achieve the above object, the present invention is achieved by the following technical programs:
A method of using tetrahydrofurfuryl alcohol preprocessing lignocellulose, include the following steps:
Biomass material is crushed, sieving, is pre-processed after a certain period of time, filtered under certain condition with tetrahydrofurfuryl alcohol, filter
Slag impregnates through alkali, washing, filters, carries out enzymatic hydrolysis and fermentation after drying.
Preferably, the biomass material is one of agricultural crop straw, herbaceous plant, energy-source plant or a variety of.
Preferably, the agricultural crop straw be corn stover, rice straw, wheat stalk, beanstalk, sorghum, in sugar grass
It is one or more, the herbaceous plant is clover or hybrid giant napier, and the energy-source plant is Chinese silvergrass, switchgrass, in fast-growing willow
It is one or more.
Preferably, partial size is 20-100 mesh after the biomass material crushes.
Preferably, the time of the tetrahydrofurfuryl alcohol processing is 30-60min, and treatment temperature is 100-180 DEG C, and solid-to-liquid ratio is
4%-15%.
Preferably, drying temperature used is 30-50 DEG C.
Preferably, enzymatic hydrolysis and fermentation includes the following steps: dense by the cellulase of 8% concentration of substrate, 30FPU/g substrate quality
Degree carries out prehydrolysis for 24 hours under the conditions of 50 DEG C, then with the high temperature resistant active dry yeast of the quality such as cellulase, in 42 DEG C of conditions
Lower enzymatic hydrolysis and fermentation 3-6 days.
Preferably, using the method for tetrahydrofurfuryl alcohol preprocessing lignocellulose, sugar is produced in enzymatic hydrolysis, produces alcohol fuel, fourth
Alcohol, succinic acid, solid-state fermentation substrate, animal feed, the application in anaerobic fermentation.
The beneficial effects of the present invention are:
The purpose of the present invention is being pre-processed using tetrahydrofurfuryl alcohol to biomass, make lignocellulosic removing lignin and
Hemicellulose increases the binding site of cellulase and cellulose, promotes the enzymolysis efficiency of cellulase.
It includes that pretreated raw material is used to digest production sugar that purpose is pre-processed in the present invention, and pretreated raw material is used
In production alcohol fuel, butanol, the liquid fuels such as succinic acid or chemical products, pretreated raw material is used for solid state fermentation base
Matter is used for pretreated raw material to produce animal feed, and pretreated matrix is used for anaerobic fermentation.
In addition, the invention has the characteristics that and advantage:
1, treatment conditions are mild, easy to operate；2, short processing time greatly shortens experimental period, improves treatment effeciency,
Treating capacity can also voluntarily be adjusted flexibly according to reaction vessel；3, tetrahydrofurfuryl alcohol can be that raw material is produced by biomass.
Detailed description of the invention
Fig. 1 is process flow chart of the invention；
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention,
Technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is the present invention one
Divide embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making
Every other embodiment obtained, shall fall within the protection scope of the present invention under the premise of creative work.
Embodiment 1:
A method of using tetrahydrofurfuryl alcohol preprocessing lignocellulose, include the following steps:
Maize leaves are dried by crushing smashes it through 2mm sieve, takes 25g as the pretreated raw material of biomass, by 10%
Solid-to-liquid ratio be added 250ml tetrahydrofurfuryl alcohol, reaction temperature be 160 DEG C, reaction time 30min after pretreatment, uses 160mM/
LNaOH solution impregnates 20min, washing, filtering, drying.Then enzymatic hydrolysis and fermentation experiment is carried out to drying sample.
Through analyzing, enzymolysis efficiency reaches 59.53%, ethanol conversion 53.58%.
Embodiment 2:
A method of using tetrahydrofurfuryl alcohol preprocessing lignocellulose, include the following steps:
Cornstalk is dried by crushing smashes it through 2mm sieve, takes 25g as the pretreated raw material of biomass, by 10%
Solid-to-liquid ratio be added 250ml tetrahydrofurfuryl alcohol, reaction temperature be 120 DEG C, reaction time 30min after pretreatment, uses 160mM/
LNaOH solution impregnates 20min, washing, filtering, drying.Then enzymatic hydrolysis and fermentation experiment is carried out to drying sample.
Through analyzing, enzymolysis efficiency reaches 49.25%, ethanol conversion 44.32%.
Embodiment 3:
A method of using tetrahydrofurfuryl alcohol preprocessing lignocellulose, include the following steps:
Corn ear is dried by crushing smashes it through 2mm sieve, takes 20g as the pretreated raw material of biomass, by 8%
250ml tetrahydrofurfuryl alcohol is added in solid-to-liquid ratio, and reaction temperature is 140 DEG C, and reaction time 30min after pretreatment, uses 160mM/L
NaOH solution impregnates 20min, washing, filtering, drying.Then enzymatic hydrolysis and fermentation experiment is carried out to drying sample.
Through analyzing, enzymolysis efficiency reaches 45.63%, ethanol conversion 41.07%.
Embodiment 4:
A method of using tetrahydrofurfuryl alcohol preprocessing lignocellulose, include the following steps:
Paddy stalk is dried by crushing smashes it through 2mm sieve, takes 20g as the pretreated raw material of biomass, by 8%
Solid-to-liquid ratio be added 250ml tetrahydrofurfuryl alcohol, reaction temperature be 120 DEG C, reaction time 60min after pretreatment, uses 160mM/
LNaOH solution impregnates 20min, washing, filtering, drying.Then enzymatic hydrolysis and fermentation experiment is carried out to drying sample.
Through analyzing, enzymolysis efficiency reaches 51.21%, ethanol conversion 46.10%.
Embodiment 5:
A method of using tetrahydrofurfuryl alcohol preprocessing lignocellulose, include the following steps:
Hybrid giant napier dries by crushing and smashes it through 20 meshes, takes 20g as the pretreated raw material of biomass, by 4%
Solid-to-liquid ratio be added 250ml tetrahydrofurfuryl alcohol, reaction temperature be 180 DEG C, reaction time 30min after pretreatment, uses 160mM/
LNaOH solution impregnates 20min, then washing, filtering, drying dry under conditions of 50 DEG C, carry out enzymatic hydrolysis and fermentation experiment.
Through analyzing, enzymolysis efficiency reaches 50.25%, ethanol conversion 48.12%.
Embodiment 6:
A method of using tetrahydrofurfuryl alcohol preprocessing lignocellulose, include the following steps:
Hybrid giant napier dries by crushing and smashes it through 100 meshes, takes 20g as the pretreated raw material of biomass, by 4%
Solid-to-liquid ratio be added 250ml tetrahydrofurfuryl alcohol, reaction temperature be 180 DEG C, reaction time 30min after pretreatment, uses 160mM/
LNaOH solution impregnates 20min, then washing, filtering, drying dry under conditions of 50 DEG C, carry out enzymatic hydrolysis and fermentation experiment.
Through analyzing, enzymolysis efficiency reaches 49.98%, ethanol conversion 48.74%.
Embodiment 7:
A method of using tetrahydrofurfuryl alcohol preprocessing lignocellulose, include the following steps:
Hybrid giant napier dries by crushing and smashes it through 100 meshes, takes 20g as the pretreated raw material of biomass, by 4%
Solid-to-liquid ratio be added 250ml tetrahydrofurfuryl alcohol, reaction temperature be 100 DEG C, reaction time 30min after pretreatment, uses 160mM/
LNaOH solution impregnates 20min, then washing, filtering, drying dry under conditions of 30 DEG C, carry out enzymatic hydrolysis and fermentation experiment.
Through analyzing, enzymolysis efficiency reaches 50.24%, ethanol conversion 49.65%.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (8)
1. a kind of method using tetrahydrofurfuryl alcohol preprocessing lignocellulose, which comprises the steps of:
Biomass material is crushed, sieving, is pre-processed under certain condition with tetrahydrofurfuryl alcohol after a certain period of time, filtering, filter residue warp
Alkali impregnates, washing, filters, carries out enzymatic hydrolysis and fermentation after drying.
2. the method according to claim 1 using tetrahydrofurfuryl alcohol preprocessing lignocellulose, which is characterized in that the life
Raw material of substance is one of agricultural crop straw, herbaceous plant, energy-source plant or a variety of.
3. the method according to claim 2 using tetrahydrofurfuryl alcohol preprocessing lignocellulose, which is characterized in that the agriculture
Crop material is one of corn stover, rice straw, wheat stalk, beanstalk, sorghum, sugar grass or a variety of, the draft
Plant is clover or hybrid giant napier, and the energy-source plant is one of Chinese silvergrass, switchgrass, fast-growing willow or a variety of.
4. the method according to claim 1 using tetrahydrofurfuryl alcohol preprocessing lignocellulose, which is characterized in that the life
Partial size is 20-100 mesh after raw material of substance crushes.
5. the method according to claim 1 using tetrahydrofurfuryl alcohol preprocessing lignocellulose, which is characterized in that described four
The time of hydrogen furfuryl alcohol processing is 30-60min, and treatment temperature is 100-180 DEG C, solid-to-liquid ratio 4%-15%.
6. the method according to claim 1 using tetrahydrofurfuryl alcohol preprocessing lignocellulose, which is characterized in that drying institute
It is 30-50 DEG C with temperature.
7. the method according to claim 1 using tetrahydrofurfuryl alcohol preprocessing lignocellulose, which is characterized in that enzymatic hydrolysis hair
Ferment includes the following steps: to carry out for 24 hours under the conditions of 50 DEG C by the cellulase concentration of 8% concentration of substrate, 30FPU/g substrate quality
Prehydrolysis, then with the high temperature resistant active dry yeast of the quality such as cellulase, enzymatic hydrolysis and fermentation 3-6 days under the conditions of 42 DEG C.
8. the method for tetrahydrofurfuryl alcohol preprocessing lignocellulose is utilized described in -7 according to claim 1, which is characterized in that in enzyme
Solution production is sugared, production alcohol fuel, butanol, succinic acid, solid-state fermentation substrate, animal feed, the application in anaerobic fermentation.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112694867A (en) * | 2020-12-22 | 2021-04-23 | 安徽工业大学 | Method for preparing adhesive by water-settling acidified tetrahydrofurfuryl alcohol-treated biomass |
| CN113024492A (en) * | 2021-03-25 | 2021-06-25 | 北京林业大学 | Method for comprehensively utilizing corn straws based on tetrahydrofurfuryl alcohol/water |
| CN113115969A (en) * | 2021-04-02 | 2021-07-16 | 中国烟草总公司郑州烟草研究院 | Method for reducing lignin content in tobacco stems |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112694867A (en) * | 2020-12-22 | 2021-04-23 | 安徽工业大学 | Method for preparing adhesive by water-settling acidified tetrahydrofurfuryl alcohol-treated biomass |
| CN113024492A (en) * | 2021-03-25 | 2021-06-25 | 北京林业大学 | Method for comprehensively utilizing corn straws based on tetrahydrofurfuryl alcohol/water |
| CN113115969A (en) * | 2021-04-02 | 2021-07-16 | 中国烟草总公司郑州烟草研究院 | Method for reducing lignin content in tobacco stems |
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