CN106079000A - A kind of processing method of biomass efficient separating lignin - Google Patents
A kind of processing method of biomass efficient separating lignin Download PDFInfo
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- CN106079000A CN106079000A CN201610421623.5A CN201610421623A CN106079000A CN 106079000 A CN106079000 A CN 106079000A CN 201610421623 A CN201610421623 A CN 201610421623A CN 106079000 A CN106079000 A CN 106079000A
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- CN
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- Prior art keywords
- lignin
- biomass
- efficient separating
- separating lignin
- biomass efficient
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
- B27L11/00—Manufacture of wood shavings, chips, powder, or the like; Tools therefor
- B27L11/06—Manufacture of wood shavings, chips, powder, or the like; Tools therefor of wood powder or sawdust
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/34—Organic impregnating agents
- B27K3/50—Mixtures of different organic impregnating agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K2240/00—Purpose of the treatment
- B27K2240/10—Extraction of components naturally occurring in wood, cork, straw, cane or reed
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Compounds Of Unknown Constitution (AREA)
Abstract
The present invention relates to the processing method of a kind of biomass efficient separating lignin.The method specifically comprises the following steps that one, pulverizes biomass material, screens, and soxhlet type processes.Two, in acidic ion liquid alcohol-water system, biomass material is processed, dissolve lignin therein.Three, vacuum filtration separates, and obtains undissolved fiber-rich cellulosic material.Four, in filtrate, add distilled water, make lignin deposit out, then carry out washing, dried.The acidic ion liquid alcohol-water system that the present invention utilizes effectively by the lignin separation in biomass material out, and can obtain the fiber-rich cellulosic material that content of lignin is relatively low, has the advantages such as lignin extraction efficiency is high, technique is simple, environmental pollution is little.
Description
Technical field
The invention belongs to biorefinery and biomass energy source domain, relate to the place of a kind of biomass efficient separating lignin
Reason method.
Background technology
Due to the non-renewable of fossil resource and day by day reducing, energy issue of world attracts great attention, with biomass
Resource is that the green energy resource of representative receives significant attention, and biomass resource rich reserves is cheap, renewable, and does not deposits
Problem of environmental pollution caused by utilizing at fossil resource, has good application prospect.
Whole utilization direct to biomass, resource utilization is the highest, and economic value added is little, is carried out by biomass components point
From, the most a certain component is used, and will be greatly improved the utilization ratio of biomass, improves the additional of biomass resource
Value, meets the theory of biorefining.
In the processing method of current a lot of biomass materials, often for separation and the utilization of one-component, such as papermaking
Industry is paid attention to the utilization of cellulose and most hemicellulose and lignin is destroyed removing, not only causes environment certain
Impact, and the higher value application of biomass material can not be realized.
Reagent and by-product that existing biomass material separation method is used are relatively big on the impact of environment, simple alcohol
System is difficult to reach good biomass processes effect, uses strong acid as catalyst equipment can be caused corrosion, also has environment
Bigger adverse effect.
Summary of the invention
The present invention is to solve that traditional biological raw material separation method environmental pollution is big, the problem that transformation efficiency is low, and carry
Processing method for the separating biomass lignin of a kind of green high-efficient.
The processing method of a kind of biomass efficient separating lignin, specifically follows the steps below:
One, biomass material pulverized, screen, carry out drying for standby after soxhlet type process.
Two, being joined by the biomass material that step one obtains in ionic liquid-ol water mixed solution, controlling temperature is
Under the conditions of the constant temperature oil bath of 100～200 DEG C, keep 0.5～2h, obtain mixture；
Three, the reactant liquor obtaining step 2 carries out vacuum filtration, obtains undissolved fiber-rich cellulosic material, and uses distilled water
It is carried out；
Four, in the filtrate that step 3 obtains, add distilled water, make the lignin deposit of dissolving out.
Five, the mixed solution obtaining step 4 carries out vacuum filtration, isolated lignin, washes, is dried.
Wherein, in step one, soxhlet type processes to remove the extract in biomass material, utilizes alcohol in step 2
Aqueous systems dissolves the lignin in biomass material, adds ionic liquid to improve the extraction efficiency of lignin, in step 4
Add anti-solvent to regenerate out by the lignin separation of dissolving.The lignin separation method that the present invention utilizes is former based on biomass
Cellulose, hemicellulose, the different physicochemical properties of lignin three component and construction features in material, at acidic ion liquid
Under catalysis, utilize the lignin in alcohol-water system extracting biomass material, remain fiber-rich element residue, improve biomass former
The comprehensive utilization ratio of material.
The invention has the beneficial effects as follows:
1, the method applied in the present invention technique is simple, and low toxicity, environmental pollution are little by 2, ionic liquid steam forces down, and can return
Receive recycling.3, higher lignin extraction efficiency can be realized under the shorter process time, it is possible to carry for biorefining
For lignin raw material.4, the fiber-rich cellulosic material that content of lignin is relatively low can be obtained, for the cellulose-based article of high added value
Raw material is provided, improves the comprehensive utilization ratio of biomass material.
Accompanying drawing explanation
Fig. 1 is to utilize alcohol-water system and the acidic ion liquid flow chart of separating lignin from biomass material；
Detailed description of the invention
Technical solution of the present invention is not limited to the detailed description of the invention of act set forth below, also include each detailed description of the invention it
Between combination in any.
Detailed description of the invention one: present embodiment specifically follows the steps below:
One, by wood powder raw material pulverizing, screening, granular size is 100 mesh, is dried standby at 90 DEG C after carrying out soxhlet type 5h
With.
Two, the biomass material that step one obtains is joined in acidic ion liquid-ol water mixed solution, wood powder, from
Sub-liquid, the mass ratio of alcohol and water are 1:0.5:15:5～20.Under the conditions of controlling the constant temperature oil bath that temperature is 100～200 DEG C, protect
Hold 0.5～2h, obtain mixture；
Three, the reactant liquor obtaining step 2 carries out vacuum filtration, obtains undissolved fiber-rich cellulosic material, and uses distilled water
It is carried out；
Four, in the filtrate that step 3 obtains, add distilled water, make the lignin deposit of dissolving out.
Five, the mixed solution obtaining step 4 carries out vacuum filtration, isolated lignin, washes, is dried.
Detailed description of the invention two: present embodiment is unlike detailed description of the invention one: biomass material in step one
For coir fibre.Other is identical with detailed description of the invention one.
Detailed description of the invention three: present embodiment is unlike detailed description of the invention one: the alcohols used in step 2
For dehydrated alcohol.Other is identical with detailed description of the invention one.
Employing following example checking beneficial effects of the present invention:
Embodiment one:
The processing method of the present embodiment a kind of biomass efficient separating lignin, specifically follows the steps below:
One, by Cortex Populi Tomentosae crushing and screening, the particle diameter poplar powder sample less than 100 mesh is obtained.Use acetone soln, in temperature
Under the conditions of degree is 90 DEG C, Poplar Powder is carried out 6h soxhlet type process, obtain wood powder sample after being dried removal acetone standby；
Two, take in the rustless steel hydrothermal reaction kettle that the poplar wood powder that 1g step one obtains joins 50ml, the most wherein
Add 24ml BDO and 6ml distilled water, and take 1g 1-butyl-3-methylimidazolium hydrogen sulphate salt and be added thereto, pass through
Said mixture is stirred by magnetic agitation.Subsequently reactor is closed, in system, be passed through argon three times to get rid of reaction
Air in still.Reactor is added and has been preheated with in the oil bath pan of 200 DEG C heating 30min.
Three, after step 2 has been reacted, reactor is put in cold water and be cooled to room temperature, subsequently reactant liquor is passed through aperture
It is that the nylon leaching film of 0.4 μm carries out vacuum filtration, is filtrated to get undissolved fiber-rich cellulosic material (CRM), and clear with distilled water
Dried after washing three times；
Four, in the filtrate that step 3 obtains, add distilled water and make the lignin deposit of dissolving out, pass through aperture subsequently
It is that the nylon leaching film of 0.4 μm carries out vacuum filtration, obtains lignin, dried after cleaning three times with distilled water.
In the present embodiment, poplar content of lignin drops to 0.95% from the 22.07% of poplar sample, delignification rate
Reach 98%, show that this system has preferably removing lignin effect.
Claims (7)
1. the processing method of a biomass efficient separating lignin, it is characterised in that the method is specifically entered according to following steps
Row:
One, biomass material pulverized, screen, carry out drying for standby after soxhlet type process.
Two, the biomass material that step one obtains is joined in ionic liquid-ol water mixed solution, control temperature be 100～
Under the conditions of the constant temperature oil bath of 200 DEG C, keep 0.5～2h, obtain mixture；
Three, the reactant liquor obtaining step 2 carries out vacuum filtration, obtains undissolved fiber-rich cellulosic material, and carries out with distilled water
Clean；
Four, in the filtrate that step 3 obtains, add distilled water, make the lignin deposit of dissolving out.
Five, the mixed solution obtaining step 4 carries out vacuum filtration, isolated lignin, washes, is dried.
The method of a kind of biomass efficient separating lignin the most according to claim 1, it is characterised in that raw in step one
Raw material of substance includes the wood fiber, coir, banana fiber, pina fibre, wheat straw, corn stalk and Caulis et Folium Oryzae, and granular size is 60-
120 mesh.
The method of a kind of biomass efficient separating lignin the most according to claim 1, it is characterised in that profit in step one
With acetone extraction, controlling extraction temperature is 80～100 DEG C, processes the time 4～6h.
The method of a kind of biomass efficient separating lignin the most according to claim 1, it is characterised in that raw in step one
Raw material of substance, ionic liquid, the mass ratio of alcohol and water are 1:0.5～1:15～30:5～20.
The method of a kind of biomass efficient separating lignin the most according to claim 1, it is characterised in that control in step 2
Temperature processed is at 100～200 DEG C, and the response time is 0.5～2h.
The method of a kind of biomass efficient separating lignin the most according to claim 1, it is characterised in that logical in step 2
Enter the air in nitrogen, argon 1～3 eliminating reactors.
The method of a kind of biomass efficient separating lignin the most according to claim 1, it is characterised in that alcohol in step 2
Class includes monohydric alcohol, dihydroxylic alcohols, trihydroxylic alcohol.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610421623.5A CN106079000A (en) | 2016-06-12 | 2016-06-12 | A kind of processing method of biomass efficient separating lignin |
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| CN201610421623.5A CN106079000A (en) | 2016-06-12 | 2016-06-12 | A kind of processing method of biomass efficient separating lignin |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101580522A (en) * | 2009-06-11 | 2009-11-18 | 大连工业大学 | Method for separating lignin and cellulose from lignocellulose by using ionic liquid solvent |
| CN102926251A (en) * | 2012-11-23 | 2013-02-13 | 南开大学 | Method for extracting cellulose from straw by adopting ionic liquid |
| CN103088692A (en) * | 2013-01-31 | 2013-05-08 | 河南科技大学 | Method for selectively separating lignin and cellulose from lignocellulose biomasses |
| CN103147331A (en) * | 2013-03-08 | 2013-06-12 | 南开大学 | Method for extracting biomass cellulose of lignocellulose by using imidazolium ionic liquid |
| CN104829754A (en) * | 2015-05-12 | 2015-08-12 | 大连工业大学 | Method for separating hemicellulose from lignocellulose biomass |
| CN105150328A (en) * | 2015-07-20 | 2015-12-16 | 国际竹藤中心 | Method for separating parenchyma cells from fibers in bamboo wood |
| CN105413493A (en) * | 2015-12-27 | 2016-03-23 | 常州亚环环保科技有限公司 | Method of preparing polyvinylidene fluoride ultra-filtering membrane through extraction of nano cellulose from straw |
| CN105544265A (en) * | 2015-12-15 | 2016-05-04 | 华南理工大学 | Method for separating and extracting cellulose and lignin from bamboo wood |
-
2016
- 2016-06-12 CN CN201610421623.5A patent/CN106079000A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101580522A (en) * | 2009-06-11 | 2009-11-18 | 大连工业大学 | Method for separating lignin and cellulose from lignocellulose by using ionic liquid solvent |
| CN102926251A (en) * | 2012-11-23 | 2013-02-13 | 南开大学 | Method for extracting cellulose from straw by adopting ionic liquid |
| CN103088692A (en) * | 2013-01-31 | 2013-05-08 | 河南科技大学 | Method for selectively separating lignin and cellulose from lignocellulose biomasses |
| CN103147331A (en) * | 2013-03-08 | 2013-06-12 | 南开大学 | Method for extracting biomass cellulose of lignocellulose by using imidazolium ionic liquid |
| CN104829754A (en) * | 2015-05-12 | 2015-08-12 | 大连工业大学 | Method for separating hemicellulose from lignocellulose biomass |
| CN105150328A (en) * | 2015-07-20 | 2015-12-16 | 国际竹藤中心 | Method for separating parenchyma cells from fibers in bamboo wood |
| CN105544265A (en) * | 2015-12-15 | 2016-05-04 | 华南理工大学 | Method for separating and extracting cellulose and lignin from bamboo wood |
| CN105413493A (en) * | 2015-12-27 | 2016-03-23 | 常州亚环环保科技有限公司 | Method of preparing polyvinylidene fluoride ultra-filtering membrane through extraction of nano cellulose from straw |
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Application publication date: 20161109 |