CN107987862A - The method that a kind of Asia/supercritical methanol liquified cellulosic prepares primary biomass platform chemicals - Google Patents
The method that a kind of Asia/supercritical methanol liquified cellulosic prepares primary biomass platform chemicals Download PDFInfo
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- CN107987862A CN107987862A CN201711116043.6A CN201711116043A CN107987862A CN 107987862 A CN107987862 A CN 107987862A CN 201711116043 A CN201711116043 A CN 201711116043A CN 107987862 A CN107987862 A CN 107987862A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
- C10G1/002—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal in combination with oil conversion- or refining processes
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1011—Biomass
- C10G2300/1014—Biomass of vegetal origin
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- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention belongs to field of energy and chemical technology, more specifically, it is related to the method that a kind of Asia/supercritical methanol liquified cellulosic prepares primary biomass platform chemicals, stalk fibrid element, Asia/supercritical methanol are placed in the pressure vessel with magnetic stirring apparatus, 0~120min is reacted under the conditions of 220~380 DEG C, 5.0~11.0Mpa, it is cooled to room temperature, collects product；Wherein, stalk fibrid element and the ratio of methanol are 1 ~ 11g：0~200mL.Using methanol as reaction dissolvent the concentration of free radical can be substantially improved, to primary biomass platform chemicals in the present invention（Carbohydrate, hydro carbons, alcohols, esters, acids）Component considerable influence is distributed with.Supercritical fluid liquefaction technology used in this experimental method has the advantages that liquid product yield is high, platform chemicals are selectively good, and comprehensive benefit is notable, and application and popularizations are strong.
Description
Technical field
The invention belongs to field of energy and chemical technology, more particularly, to a kind of Asia/supercritical methanol liquified cellulosic
The method for preparing primary biomass platform chemicals.
Background technology
In recent years, people increasingly pay close attention to chemical combination in bio oil when studying stalk fibrid element liquefaction preparation bio oil
The composition and influence factor of thing, liquefaction analysis are more careful more favourable to obtaining compound needed for people.Biomass energy is most common
Renewable carbon-containing energy, according to the C/Hratio phase approximately principle of optimization carbon-containing energy utilization ways, production and transport fuel and petrochemical industry
Product is the optimal path using bioenergy.Numerous scholars when carrying out biomass liquefied research in supercritical fluid,
It was found that in the bio oil that liquefies, often the material such as ketone, esters, alcohols, phenols and acids accounts for larger specific gravity.And in view of straw
The complexity of stalk component, various component liquefaction mechanism and response path are different so that the liquefaction production of straw biomass full constituent
Thing is complicated, is unfavorable for centralized production chemicals.And stalk one pack system is directed to, particularly content of cellulose is high, and structure has chapter can
Follow, containing substantial amounts of hydroxyl, though liquefaction process is complicated in Asia/supercritical solvent, comprising substantial amounts of parallel reaction and intersect anti-
Should, but product is divided according to lump, mainly comprising the compound such as a large amount of ketones, esters, alcohols, acids
At present, there is research of many biomass in Asia/supercritical organic solvents, and research shows different solvents
Product is distributed with different selectivity, liquefaction yield for supercritical organic solvents liquified cellulosic under different condition and
The distribution of its organic compound, Analysis on Mechanism still need deeply to be probed into.
The content of the invention
The technical problem to be solved in the present invention is overcome it is above-mentioned in the prior art the defects of and technical deficiency, there is provided it is a kind of
The method that new stalk fibrid element liquefaction prepares primary biomass platform chemicals, is specifically that one kind utilizes sub-/overcritical first
Alcohol realizes that efficiently liquefaction prepares primary biomass platform chemicals to stalk fibrid element, and probes into wherein primary biomass platform
The method of compound, it is bright preferably to utilize the biomass platform chemicals of high quality to be provided with strong evidence from now on.
The object of the present invention is to provide a kind of Asia/supercritical methanol liquefied straw fiber element to prepare primary biomass and put down
The method of platform compound.
Above-mentioned purpose of the present invention is achieved through the following technical solutions：
The method that a kind of Asia/supercritical methanol liquefied straw fiber element prepares primary biomass platform chemicals, including
Following steps：Stalk fibrid element and Asia/supercritical methanol are placed in the pressure vessel with magnetic stirring apparatus, in temperature
Spend for 240~380 DEG C, pressure be 5.0~9.0Mpa under the conditions of react, and this state keep 0~120min, then cool down
To room temperature, collect product and obtain biomass main platform compound；The stalk fibrid element and methanol quality volume ratio are 1
~11g：0~200mL.
Preferably, the method for collecting product is to clean reaction kettle inner wall with acetone, collects solid-liquid mix products, will
It uses acetone extraction, and Extracting temperature is 35~100 DEG C, 13~17h of extraction time, vacuum filtration, filtrate Rotary Evaporators
Acetone is evaporated, wherein evaporating temperature is set as 65~75 DEG C, and remaining material is biomass main platform compound.
Preferably, the biomass main platform compound is mainly organic comprising carbohydrate, hydro carbons, alcohols, esters, acids
Material.
Preferably, the stalk fibrid element and methanol quality volume ratio are 8g：200mL.
Preferably, the temperature of the reaction is 200~380 DEG C.
It is highly preferred that the temperature of the reaction is 320 DEG C.
Preferably, the reaction retention time is 60min.
Preferably, a kind of Asia/supercritical methanol liquefied straw fiber element prepares the side of primary biomass platform chemicals
Method, comprises the following steps that：
S1. stalk natural wind dry doubling is cut into segment, is then crushed using micropulverizer, after sieving and drying, collected
Deposit in spare in drier；
S2. the water-soluble substanceses such as liposoluble substance, polysaccharide and the starch in stalk fibrid element are removed；
S3. the sodium chlorite solution using acidifying is except lignin in stalk fibrid element is sloughed, then using sodium hydroxide
Solution treatment removes hemicellulose, and isolated stalk fibrid element, gained cellulose is dried, is put in spare in drier；
S4. take stalk fibrid element, methanol to add in reaction kettle, carry out liquefaction reaction；
S5 collection of products：Reaction kettle is cooled to room temperature, and liquefaction products are transferred in beaker, obtains solidliquid mixture, is used
Acetone carries out surname extraction and separates liquid with solid, and obtained acetone soln Rotary Evaporators removing methanol, acetone etc. are molten
Agent, obtains biomass main platform compound.
Preferably, the stalk fibrid element is the cellulose extracted from maize straw powder, wherein corn stalk
Stalk source is Agricultural University Of South China experimental plot.
Preferably, the stalk particle granularity after being crushed in step S1 is 40~60 mesh.
Further, remove liposoluble substance in step S2 and water-soluble substances method is as follows：It is 2 with volume ratio:1
Ethanol-benzole soln extracts stalk powder in advance, and filtering removes liposoluble substance, then with distilled water to stalk powder at 75~80 DEG C
The water-soluble substances such as 2~3h of lower stirring, filtering Polysaccharide removing, starch.
Further, to slough lignin method in step S3 as follows：Sample obtained by step S2 is added in distilled water,
Add glacial acetic acid and sodium chlorite shakes up, seal, be placed on 1~2h of heating, repetitive operation 2 in 70~80 DEG C of water bath with thermostatic control
~4 times, bleach to cellulose and be divided depending on lignin, then filter solution, be washed with distilled water sample pellet to washing lotion and arrive
Untill neutrality, and by sample move into 90~100 DEG C drying to constant weight, obtain dry crude fibre.
Further, it is as follows that hemicellulose method is removed in step S3：Delignified crude fibre sample is added
16% sodium hydroxide solution, solid-liquid ratio 1：20,60~70 DEG C of constant temperature water bath vibration is put into, 8~9h of extracting removes hemicellulose
Element, isolated cellulose, gained cellulose is dry to constant weight in 90~100 DEG C, and it is stalk fibre to obtain dry products
Element.
In addition, biomass main platform compound is prepared by the above method, also protection scope of the present invention it
It is interior.
It is of the invention that the main life of liquefaction preparation is carried out as stalk fibrid element under reaction dissolvent using Asia/supercritical methanol
Material platform chemicals, are to prepare biomass main platform compound, phase by solvent liquefaction cellulose of Asia/supercritical methanol
Hope and provide guidance for industrialization of the biomass main platform compound as bioenergy.
The present invention also stimulates in addition to its own substantial amounts of hydroxyl radical free radical of release and triggers supercritical methanol to produce more
More hydroxyl radical free radicals, has greatly reinforced the redox of hydroxyl radical free radical in liquefaction system.Hydroxyl radical free radical participates in fine
The plain cracking reaction (super critical point of methanol, 239.4 DEG C of critical-temperature, critical pressure 8.09MPa) of dimension.Methanol is in supercritical state
A variety of free radicals such as H, HO and CH3 are produced under state, cellulose is promoted and breaks to form a variety of small molecule segments, into one
Mixture, the volatile matter of step reaction generation biomass main platform compound.Receipts of the temperature to biomass main platform compound
Rate and distribution have a great influence.With the rise of temperature, Methanol radical concentration produced by methanol decomposition and activity increase, rise
Cellulosic molecule interior energy, adds atomic distance, weakens intermolecular interaction and hydrogen bond action, reaction speed adds
It hurry up, some C-O-C, C-O keys and the fracture of C-C keys in molecular structure, macromolecular structure decomposes, depolymerization is converted into a variety of main lifes
Material platform chemicals.
In addition, the present invention selects methanol, as supercritical solvent, it is with relatively low critical-temperature or pressure, condition phase
To relatively gentle, and methanol prices are relatively more economical.Methanol can produce H, HO and CH3 etc. under Asia/supercriticality
A variety of free radicals, when reaction temperature raises, Methanol radical increased activity, concentration increase, Free Radical promote cellulose
The key such as C-O-C, C-O key and C-C is broken in biolobic material.Further, HO concentration and activity rise can improve biomass
Main platform compound yield, is because HO has cracking and the bioactive molecule that extremely strong oxidisability promotes cellulose
Reaction between fragment, promotes the generation of the more product liquids of cellulose liquefaction, and selectively improves primary biomass
The purpose of platform chemicals yield.
The method of the present invention is overcome bioanalysis and is stranded using stalk fibrid element in reaction condition requirement height, bacterial screening
Difficult, the shortcomings of utilization rate is low and reaction time is longer, and the pyrolysis of stalk fibrid element and gasification are converted into useful fuel
With platform compounding techniques existing for tar content is high, product yield is low, high energy consumption and equipment requirement are high the shortcomings of.
The invention has the advantages that：
The present invention provides a kind of Asia/supercritical methanol liquefied straw fiber element to prepare primary biomass platform chemical combination
The method of thing, this method prepares biomass main platform compound using Asia/supercritical methanol, to equipment and materials performance requirement
Relatively low, transformation efficiency is high, and energy consumption is relatively low, the mixing of stalk fibrid element raw material liquefaction gained biomass platform chemicals
Produce rate reaches highest 25.1%；And stalk fibrid element conversion ratio is up to 61.9%~93.2%.Reaction temperature and methanol are used
Measure distribution to compound to have a great influence with content, reaction temperature and methanol usage increase, promotion cellulose to hydro carbons, alcohols,
Esters convert, and each compounds content increases therewith, and constituent content is higher in biomass platform chemicals has：Hydro carbons, alcohols,
Esters, acids, each compound highest relative amount is respectively 60.1~70.3%, 15.4~25.2%, 24.1~35.6%,
15.1~23.7%.
The present invention selects methanol to be used as Asia/supercritical solvent, its with 230~240 DEG C of relatively low critical-temperature with it is critical
8~9Mpa of pressure, reaction condition is relatively gentle, and industrial methanol price relatively economical, and practical generalization is strong, has actual
Application value.
Brief description of the drawings
Fig. 1 is influence of the methanol usage to primary biomass platform chemicals yield.
Fig. 2 is influence of the reaction temperature to primary biomass platform chemicals yield.
Fig. 3 is influence of the reaction time to primary biomass platform chemicals yield.
Embodiment
The present invention is further illustrated below in conjunction with Figure of description and specific embodiment, but embodiment is not to this hair
It is bright to limit in any form.Unless stated otherwise, the reagent of the invention used, method and apparatus are conventional for the art
Reagent, method and apparatus.Unless stated otherwise, agents useful for same and material of the present invention are purchased in market.1 methanol usage pair of embodiment
The influence of primary biomass platform chemicals yield
1st, stalk fibrid element is prepared：Accurately weigh 30g stalk powders, with reference to standard GB/T/T 2677.1-93~
Correlation technique in GB/T 2677.10-95, with ethanol-benzene (volume ratio 2：1) pre- extracting, removes liposoluble substance；Again with steaming
Distilled water stirs stalk powder the water-soluble substances such as 2h, Polysaccharide removing, starch at 70~80 DEG C.
2nd, by the 8g cellulose powders after drying produced by granularity for the corn stalk raw material of 40~60 mesh, 80
~200mL methanol is added in the batch autoclave with magnetic stirring apparatus that volume is 1L, is warming up to 320 DEG C after sealing, and
Reaction 60min is kept at this temperature.It is cooled to room temperature, collects product.Reactor wall is cleaned with acetone, solid-liquid is collected and mixes
Product to be closed, solid-liquid mix products is collected, it is used to acetone extraction, is filtered by vacuum, filtrate evaporates acetone with Rotary Evaporators,
Remaining material is up to primary biomass platform chemicals.Product yield be with the quality of products therefrom divided by except deash with
Calculated on the basis of material quality afterwards.
3rd, to stalk cellulose in 320 DEG C, reaction time 60min, methanol usage is respectively 80,120,160 and 200mL
The generated biomass main platform compound of lower liquefaction carries out qualitative analysis by calculating, and obtains biomass main platform
The yield of compound.
4th, result is as shown in table 1, attached drawing 1.
Influence of 1 methanol usage of table to primary biomass platform chemicals relative amount
Known by table 1, considerable influence is distributed with to primary biomass platform chemicals in methanol usage, with methanol usage
Increase, each primary biomass platform chemicals have the variation tendency of reduction after first increase, substantially when methanol usage is 160mL,
The relative amount of alcohols, esters and acids can reach maximum, be respectively 12.86%, 4.606%, 15.811.It is this existing
As if because cellulose is converted into activated cellulose at high temperature, activated cellulose generates polysaccharide, polysaccharide in supercritical methanol
The materials such as hydro carbons, acids, esters, alcohols can be converted into, can also continue to be degraded to monose etc., between exist and vie each other pass
System, promotion degree of the different methanol usages to various response competitions are different.Methanol usage increase, the CH of release3, H free radicals increase
Add, promote hydrocarbon compound increase.
Influence of 2 reaction temperature of embodiment to primary biomass platform chemicals yield
1st, method
8g cellulose powders, the 160mL after drying that will be produced by granularity for the corn stalk raw material of 40~60 mesh
Methanol is added in the batch autoclave with magnetic stirring apparatus that volume is 1L, is warming up to 240 DEG C~320 DEG C after sealing, and
Reaction 60min is kept at this temperature.It is cooled to room temperature, collects product.It is cooled to room temperature, collects product.Collection of products method
With embodiment 1.Product yield is by the quality of products therefrom divided by except being calculated on the basis of the later material quality that deashes.
2nd, respectively to stalk cellulose in methanol usage 160mL, reaction time 60min, reaction temperature profile is 240 DEG C,
The generated primary biomass platform chemicals that liquefy at 260 DEG C, 280 DEG C, 300 DEG C and 320 DEG C carry out yield statistics, lead to
Calculating is crossed, draws out the relative amount of primary biomass platform chemicals.
3rd, result is as shown in table 2, attached drawing 2.
Influence of 2 reaction temperature of table to primary biomass platform chemicals relative amount
As shown in Table 2, when temperature is increased to 300 DEG C by 280 DEG C, with the rise of reaction temperature, cellulosic absorbent heat
Crack, in liquefaction process, supercritical methanol promotes the substantial amounts of heat of cellulosic absorbent to promote as heat transfer media
Reacted into pyrolysis liquefying, and can be seen that temperature has a great influence primary biomass platform chemicals, with temperature change, removed
Outside ester type compound, platform chemicals content rises after falling before, it may be possible to and as temperature rises, each platform chemicals decompose,
The esterification of alcohols and acids is key reaction.
Influence of 3 reaction time of comparative example to primary biomass platform chemicals yield
1st, method
8g cellulose powders, the 160mL after drying that will be produced by granularity for the corn stalk raw material of 40~60 mesh
Methanol is added in the batch autoclave with magnetic stirring apparatus that volume is 1L, and 320 DEG C are warming up to after sealing, and warm herein
Degree is lower to keep reaction 60min.It is cooled to room temperature, collects product.Collection of products method is the same as embodiment 1.Product yield is with gained
The quality of product divided by except calculating on the basis of the later material quality that deashes.
2nd, respectively to stalk cellulose in methanol usage 160mL, reaction time 60min, the reaction time be distributed as 0min,
The generated primary biomass platform chemicals that liquefy under 30min, 60min and 120min carry out yield statistics, pass through meter
Calculate, draw the relative amount of primary biomass platform chemicals.
3rd, result is as shown in table 3, attached drawing 3.
Influence of 3 reaction time of table to primary biomass platform chemicals relative amount
As can be seen from Table 3, certain influence is distributed with platform chemicals in the reaction time, and the reaction time is to hydro carbons
Compound has a great influence, and with the extension in reaction time, the content of each platform chemicals first increases to be reduced afterwards, in the reaction time
For 60min when, hydro carbons, acids and alcohols reach highest, as the time from 60min increases to 90min, ester type compound from
2.28 increase to 7.650, it is seen then that the reaction time, which increases, promotes acids and alcohols more to mostly occur cruel class reaction generation esters chemical combination
Thing.
Claims (10)
1. the method that a kind of Asia/supercritical methanol liquefied straw fiber element prepares primary biomass platform chemicals, its feature
It is, includes the following steps：Stalk fibrid element and Asia/supercritical methanol are placed in the pressure vessel with magnetic stirring apparatus
In, reacted under the conditions of temperature is 240~380 DEG C, pressure is 5.0~9.0Mpa, and 0~120min is kept in this state, so
Postcooling collects product and obtains biomass main platform compound to room temperature；The stalk fibrid element and methanol quality volume
Than for 1 ~ 11g：0~200mL.
2. according to the method described in claim 1, it is characterized in that, the method for collecting product is to clean reaction kettle with acetone
Inner wall, collects solid-liquid mix products, it is used to acetone extraction, and Extracting temperature is 35~100 DEG C, 13~17h of extraction time, very
Sky filters, and filtrate evaporates acetone with Rotary Evaporators, and wherein evaporating temperature is set as 65 ~ 75 DEG C, and remaining material is biology
Matter main platform compound.
3. according to the method described in claim 2, it is characterized in that, the biomass main platform compound is mainly comprising sugar
Class, hydro carbons, alcohols, esters, acids organic substance.
4. according to the method described in claim 1, it is characterized in that, stalk fibrid element is with methanol quality volume ratio
8g：200mL.
5. according to the method described in claim 1, it is characterized in that, comprise the following steps that：
S1. stalk natural wind dry doubling is cut into segment, is then crushed using micropulverizer, after sieving and drying, collect storage
It is spare in drier；
S2. the water-soluble substanceses such as liposoluble substance, polysaccharide and the starch in stalk fibrid element are removed；
S3. the sodium chlorite solution using acidifying is except lignin in stalk fibrid element is sloughed, then using sodium hydroxide solution
Processing removes hemicellulose, and isolated stalk fibrid element, gained cellulose is dried, is put in spare in drier；
S4. take stalk fibrid element, methanol to add in reaction kettle, carry out liquefaction reaction；
S5 collection of products：Reaction kettle is cooled to room temperature, and liquefaction products are transferred in beaker, obtains solidliquid mixture, uses acetone
Carry out surname extraction to separate liquid with solid, obtained acetone soln removes methanol, acetone equal solvent with Rotary Evaporators, obtains
To biomass main platform compound.
6. according to the method described in claim 5, it is characterized in that, the stalk particle granularity after being crushed in step S1 is 40~60
Mesh.
7. according to the method described in claim 5, it is characterized in that, liposoluble substance and water-soluble substances side are removed in step S2
Method is as follows：It is 2 with volume ratio:1 ethanol-benzole soln extracts stalk powder in advance, and filtering removes liposoluble substance, then uses distilled water
The water-soluble substances such as 2 ~ 3h, filtering Polysaccharide removing, starch is stirred at 75 ~ 80 DEG C to stalk powder.
8. according to the method described in claim 5, it is characterized in that, that lignin method is sloughed in step S3 is as follows：By step S2
The sample of gained is added in distilled water, adds glacial acetic acid and sodium chlorite shakes up, and is sealed, and is placed on 70~80 DEG C of water bath with thermostatic control
1 ~ 2h of middle heating, repetitive operation 2~4 times, bleaches to cellulose and is divided depending on lignin, then filter solution, use distilled water
Washing sample be precipitated to washing lotion reach it is neutral untill, and sample moved into 90~100 DEG C drying to constant weight, obtain the thick fibre of drying
Dimension.
9. according to the method described in claim 5, it is characterized in that, removal hemicellulose method is as follows in step S3：It will take off
The crude fibre sample of lignin adds 16% sodium hydroxide solution, solid-liquid ratio 1：20, it is put into 60~70 DEG C of constant temperature water bath and shakes
Swing, 8~9h of extracting removes hemicellulose, and isolated cellulose is dry to constant weight in 90~100 DEG C by gained cellulose, obtains
It is stalk cellulose to dry products.
10. the primary biomass platform chemicals prepared by claim 1-9 any one of them methods.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110577849A (en) * | 2019-09-09 | 2019-12-17 | 湖南农业大学 | method for preparing bio-oil with high yield by taking cow dung as raw material |
| CN110894513A (en) * | 2019-12-04 | 2020-03-20 | 沈阳航空航天大学 | Method for co-producing ethanol and biological oil rich in phenols by using lignocellulose biomass |
| CN112479190A (en) * | 2020-12-03 | 2021-03-12 | 天津农学院 | Method for preparing graphene-like precursor from biomass |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101560416A (en) * | 2009-05-07 | 2009-10-21 | 浙江林学院 | Method for preparing fuel oil by liquefying biomass and using supercritical methanol as medium |
| CN104447305A (en) * | 2014-12-16 | 2015-03-25 | 华南农业大学 | Method for preparing ester compound from subcritical/supercritical ethanol liquified straw cellulose |
-
2017
- 2017-11-13 CN CN201711116043.6A patent/CN107987862A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101560416A (en) * | 2009-05-07 | 2009-10-21 | 浙江林学院 | Method for preparing fuel oil by liquefying biomass and using supercritical methanol as medium |
| CN104447305A (en) * | 2014-12-16 | 2015-03-25 | 华南农业大学 | Method for preparing ester compound from subcritical/supercritical ethanol liquified straw cellulose |
Non-Patent Citations (1)
| Title |
|---|
| 孙娇等: "纤维素在亚/超临界甲醇中液化条件对主要化合物产物的影响", 《燃料化学学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110577849A (en) * | 2019-09-09 | 2019-12-17 | 湖南农业大学 | method for preparing bio-oil with high yield by taking cow dung as raw material |
| CN110894513A (en) * | 2019-12-04 | 2020-03-20 | 沈阳航空航天大学 | Method for co-producing ethanol and biological oil rich in phenols by using lignocellulose biomass |
| CN110894513B (en) * | 2019-12-04 | 2023-06-13 | 沈阳航空航天大学 | Method for co-producing ethanol and phenolic bio-oil-rich biomass by lignocellulose |
| CN112479190A (en) * | 2020-12-03 | 2021-03-12 | 天津农学院 | Method for preparing graphene-like precursor from biomass |
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