CN106318429A - Hot-melt extraction and pyrolysis coupled method for preparing high-quality biological oil and gas - Google Patents
Hot-melt extraction and pyrolysis coupled method for preparing high-quality biological oil and gas Download PDFInfo
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- CN106318429A CN106318429A CN201610834375.7A CN201610834375A CN106318429A CN 106318429 A CN106318429 A CN 106318429A CN 201610834375 A CN201610834375 A CN 201610834375A CN 106318429 A CN106318429 A CN 106318429A
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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
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/02—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of cellulose-containing material
-
- 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
- C10G1/04—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal by extraction
-
- 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
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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 invention discloses a hot-melt extraction and pyrolysis coupled method for preparing high-quality biological oil and gas. The method includes: firstly, adopting a hot-melt extraction method for deoxidized quality improvement extraction of biomass to obtain low-molecular-weight extract which is free of water and ash, high in carbon content and low in oxygen content and contains a great quantity of aromatic carbon structures; secondly, subjecting the low-molecular-weight extract to pyrolysis, and collecting a gas product, a liquid product (biological oil) and a solid product (coke). The biological oil obtained by coupling of hot-melt extraction and pyrolysis techniques is high in carbon content, low in oxygen content and high in heat value, and an aftertreatmetn process can be greatly reduced due to low corrosivity and high content of high-additional-value aromatic hydrocarbon compounds. In addition, a heat value of the obtained gas product is increased. The hot-melt extraction and pyrolysis coupled method is simple in process, free of catalysts and hydrogen, low in production cost and high in additional values of products and has high economic benefits and environmental benefits and promising application prospect.
Description
Technical field
The invention belongs to regenerative resource (biomass energy) and utilize field, more particularly, to one coupling thermosol extraction
Take and method that high-quality biological oil and gas are prepared in pyrolysis.
Background technology
Since 20 century 70 oil crisises, researchers begin look for the succedaneum of oil and day by day increase to meet
Transport fuels and chemicals demand.The meanwhile burning of Fossil fuel also result in serious environmental problem (as greenhouse is imitated
Should wait).Biomass are one of most important Renewable Energy Resources, are only second to three great tradition fossil energy of coal, oil, natural gas
Source, it accounts for the 10-15% of world energy consumption total amount.And, biomass are the raw materials of zero CO2 emission.Therefore, biological
The immense pressure that fossil energy shortage causes can be effectively alleviated in the development and utilization of matter with environmental pollution.Biomass pyrolytic preparation is raw
Thing oil is the most concerned a kind of biomass thermal chemical conversion technology.It is at isolation air or inert atmosphere, moderate temperature bar
Under part (450-600 DEG C) and short residence time by biomass thermal conversion be liquid oil (primary product) and by-product solid burnt and
Gaseous product (Sang little Yi etc. the characteristic of biomass pyrolysis oil and refined. petroleum journal (PETROLEUM PROCESSING) .2015 (01): 178-
187).Bio oil produced by the method may utilize that component is many, raw material sources extensive, can do liquid fuel, or be used for producing
High quality chemical product, such as methanol, aromatic hydrocarbon etc..
But, the bio-oil content that biomass are directly pyrolyzed preparation is high, and oxygen content is high (30-40%), and calorific value is low, in acid
Property (there is corrosivity) and viscosity big, these shortcomings largely limit the actual application of bio oil.Its reason is mainly
Biomass self oxygen content too high (40-50%), caused during in pyrolytic process, oxygen enters into the bio oil that pyrolysis produces.Existing grind
Study carefully and mainly biomass are directly pyrolyzed the bio oil of preparation carry out refined or modification to improve quality of bio-oil, typically give birth to
Thing oil refining technology such as catalytic hydrogenation, catalytic cracking and emulsifying technology (Zhang Q et al.Review of biomass
pyrolysis oil properties and upgrading research.Energy conversion and
management.2007,48(1):87-92).These technology can improve quality and the stability of pyrolysis oil to a certain extent,
However it is necessary that consumption hydrogen, catalyst is expensive and easily inactivates, complex process, relatively costly (Wang Yu etc. biomass are quick
Pyrolysis and bio-oil upgrading progress. biomass Chemical Engineering .2011 (05): 29-36).
If first carrying out deoxidation upgrading before biomass pyrolytic, the most again the biomass after deoxidation being carried out pyrolysis may
It it is another approach improving quality of bio-oil.Thermosol extraction is that the effective biomass deoxidation upgrading proposed in recent years converts skill
Art (Zhu X et al.Mechanism study of degradative solvent extraction of
Biomass.Fuel.2016,165:10-18), compared to other transformation technologies (be pyrolyzed, gasify and direct liquefaction), its condition
Gentle, it is not necessary to catalyst and hydrogen, products therefrom low-molecular-weight extract and high molecular extract have high-carbon content, low
Oxygen content, the most anhydrous characteristic such as ashless.
Summary of the invention
For disadvantages described above or the Improvement requirement of prior art, the invention provides a kind of coupling thermosol extraction and pyrolysis system
Standby high-quality biological oil and the method for gas, its object is to first use hot solvent extraction that biomass are carried out deoxidation upgrading and obtain
To biomass extract, then biomass extract is carried out pyrolysis preparation bio oil and by-product, thus improve the product of bio oil
Matter, it is achieved the high value added utilization of bio oil.
For achieving the above object, according to one aspect of the present invention, it is provided that a kind of coupling thermosol extraction and pyrolysis preparation
High-quality biological oil and the method for gas, comprise the following steps:
(1) use thermosol extraction that biomass carry out deoxidation upgrading: first by biomass with organic solvent by 1:6～1:
The mass ratio mixing of 15 is placed in reactor, is heated to 250 DEG C～the temperature of 360 DEG C, carries out hot filtration in situ；Filter extraction
Residue, obtains the mixture of solvent and extract；Then, the mixture of described solvent and extract is cooled to room temperature, to cold
Extract insoluble in solvent carries out being filtrated to get high molecular extract the most afterwards；To the extract being still dissolved in solvent after cooling
Decompression distillation, removes solvent and obtains low-molecular-weight extract；
(2) under an inert atmosphere described low-molecular-weight extract is carried out fast pyrogenation under the conditions of 450-600 DEG C, cooling
The rear gaseous product collected the bio oil of pyrolysis generation, Jiao and include hydrogen, methane, carbon monoxide and carbon dioxide.
Further, in the step (1) of described method, before the most hot filtration, it is incubated 0-90min.
Further, described inert atmosphere includes N2, Ar and He.
In the present invention, described biomass include agricultural wastes, discard including farmland and orchard residue, processing of farm products
Thing；Forestry waste, including forest harvesting residue, wood machining residues and forest cultivation beta pruning residue；Described organic solvent
Including: any one in naphthane, 1-methyl naphthalene, thick methylnaphthalene oil or washing oil.
In general, by the contemplated above technical scheme of the present invention compared with prior art, it is possible to show under acquirement
Benefit effect:
(1) biomass former state ash content is high, containing alkali and alkaline earth metal ions element in ash, in prior art, and these yuan
Element can affect biology after easily causing the problems such as Slagging, and these elements entrance bio oil in biomass pyrolysis process
The later use of oil.And low-molecular-weight extract is the most ashless, it is possible to avoid the mellow lime problem caused of its pyrolytic process.
(2) bio oil produced relative to the pyrolysis of biomass former state, the bio oil tool that the pyrolysis of low-molecular-weight extract produces
There are the characteristics such as carbon content is high, oxygen content is low, calorific value is high, and wherein Acidic organic matter content is the lowest, such that it is able to it is rotten to reduce it
Erosion property and increase its chemical stability.Additionally, the gas heating value that the pyrolysis of low-molecular-weight extract produces raises.
(3) low-molecular-weight extract aromaticity (ratio of aromatic carbon) is high, fragrance hydrocarbonylation in the bio oil that its pyrolysis produces
Complex ratios is the highest, and arene compound can be as the chemicals of high added value.So the pyrolysis of low-molecular-weight extract is raw
The potential added value of thing oil is higher.
(4) the by-product high molecular extract in biomass thermosol extraction process can add as the coking of high added value
Add agent etc. to utilize.In low-molecular-weight extract pyrolytic process, produced by-product coke content is high and ashless, can make
For material with carbon element.
(5) present invention need not catalyst and hydrogen, mild condition.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with embodiment, to the present invention
It is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not used to
Limit the present invention.
Embodiment 1
With rice straw for biomass former state, measure organic solvent (1-methyl naphthalene) mixing of 30g rice straw and 300g
It is placed in reactor (mass ratio of rice straw and solvent is 1:10), is heated to 350 DEG C and keeps 60min.Then to this
Mixed system carries out hot filtration in situ, the most at room temperature filters and distillation of reducing pressure obtains two kinds of solid phase extractions respectively and produces after cooling
Thing: high molecular extract and low-molecular-weight extract.The low-molecular-weight extract carbon content of gained is 78.9%, and oxygen content is
14.1%, aromaticity (ratio of aromatic carbon) is 48.3%.By the low-molecular-weight extract of gained at inert atmosphere at 500 DEG C
Carry out fast pyrogenation, after cooling, collect gaseous product, product liquid (bio oil) and solid product (burnt), test gaseous product
Calorific value, analyzes elementary composition, calorific value and the chemical composition of product liquid.The carbon content of low-molecular-weight extract pyrolysis bio-oils
Up to 87.5%, oxygen content is only 0.6%, and calorific value is up to 44.6MJ/kg (close to commercial diesel and gasoline).Low-molecular-weight extracts
The acids content taking thing pyrolysis gained bio oil is 1.8%, and arene compound content is up to 66.0%.It addition, low-molecular-weight
The calorific value of the gas that extract pyrolysis produces is 13.3MJ/m3。
Embodiment 2
With Cunninghamia lanceolata (Lamb.) Hook. wood flour for biomass former state, measure organic solvent (1-methyl naphthalene) mixing of 30g Cunninghamia lanceolata (Lamb.) Hook. wood flour and 300g
It is placed in reactor (mass ratio of Cunninghamia lanceolata (Lamb.) Hook. wood flour and solvent is 1:10), is heated to 350 DEG C and keeps 60min.Then to this
Mixed system carries out hot filtration in situ, and the most at room temperature filter after cooling and reduce pressure distillation acquisition solid phase extraction product respectively:
High molecular extract and low-molecular-weight extract.The low-molecular-weight extract carbon content of gained is 80.3%, and oxygen content is
11.3%, aromaticity (ratio of aromatic carbon) is 56.7%.By the low-molecular-weight extract of gained at inert atmosphere at 500 DEG C
Carry out fast pyrogenation, after cooling, collect gaseous product, product liquid (bio oil) and solid product (burnt), test gaseous product
Calorific value, analyzes elementary composition, calorific value and the chemical composition of product liquid.The carbon of low-molecular-weight extract pyrolysis gained bio oil
Content is up to 90.1%, and oxygen content is only 0.9%, and calorific value is up to 42.3MJ/kg (close to commercial diesel and gasoline)；Low molecule
The acids content of amount extract pyrolysis gained bio oil is only 2.4%, and arene compound content is up to 48.1%.It addition, it is low
The calorific value of the gas that molecular weight extractables pyrolysis produces is 13.9MJ/m3。
Embodiment 3
With Cunninghamia lanceolata (Lamb.) Hook. wood flour for biomass former state, measure organic solvent (1-methyl naphthalene) mixing of 20g Cunninghamia lanceolata (Lamb.) Hook. wood flour and 300g
It is placed in reactor (mass ratio of Cunninghamia lanceolata (Lamb.) Hook. wood flour and solvent is 1:15), is heated to 360 DEG C and keeps 0min.Then this is mixed
Fit system carries out hot filtration in situ, the most at room temperature filters and distillation of reducing pressure obtains solid phase extraction product respectively: be high after cooling
Molecular weight extractables and low-molecular-weight extract.The low-molecular-weight extract carbon content of gained is 75.8%, and oxygen content is
17.3%, aromaticity (ratio of aromatic carbon) is 53.8%.By the low-molecular-weight extract of gained at inert atmosphere at 450 DEG C
Carry out fast pyrogenation, after cooling, collect gaseous product, product liquid (bio oil) and solid product (burnt), test gaseous product
Calorific value, analyzes elementary composition, calorific value and the chemical composition of product liquid.The carbon of low-molecular-weight extract pyrolysis gained bio oil
Content is up to 88.4%, and oxygen content is only 1.8%, and calorific value is up to 40.4MJ/kg (close to commercial diesel and gasoline)；Low molecule
The acids content of amount extract pyrolysis gained bio oil is only 3.0%, and arene compound content is up to 46.2%.It addition, it is low
The calorific value of the gas that molecular weight extractables pyrolysis produces is 12.1MJ/m3。
Embodiment 4
With rice straw for biomass former state, measure organic solvent (1-methyl naphthalene) mixing of 20g rice straw and 300g
It is placed in reactor (mass ratio of rice straw and solvent is 1:15), is heated to 250 DEG C and keeps 90min.Then to this
Mixed system carries out hot filtration in situ, the most at room temperature filters and distillation of reducing pressure obtains two kinds of solid phase extractions respectively and produces after cooling
Thing: high molecular extract and low-molecular-weight extract.The low-molecular-weight extract carbon content of gained is 75.2%, and oxygen content is
16.3%, aromaticity (ratio of aromatic carbon) is 43.5%.By the low-molecular-weight extract of gained at inert atmosphere at 500 DEG C
Carry out fast pyrogenation, after cooling, collect gaseous product, product liquid (bio oil) and solid product (burnt), test gaseous product
Calorific value, analyzes elementary composition, calorific value and the chemical composition of product liquid.The carbon content of low-molecular-weight extract pyrolysis bio-oils
Up to 85.7%, oxygen content is only 1.6%, and calorific value is up to 40.6MJ/kg (close to commercial diesel and gasoline).Low-molecular-weight extracts
The acids content taking thing pyrolysis gained bio oil is 2.2%, and arene compound content is up to 60.4%.It addition, low-molecular-weight
The calorific value of the gas that extract pyrolysis produces is 11.4MJ/m3。
Embodiment 5
With rice straw for biomass former state, measure organic solvent (1-methyl naphthalene) mixing of 50g rice straw and 300g
It is placed in reactor (mass ratio of rice straw and solvent is 1:6), is heated to 300 DEG C and keeps 90min.Then this is mixed
Fit system carries out hot filtration in situ, the most at room temperature filters and distillation of reducing pressure obtains two kinds of solid phase extractions respectively and produces after cooling
Thing: high molecular extract and low-molecular-weight extract.The low-molecular-weight extract carbon content of gained is 77.6%, and oxygen content is
14.2%, aromaticity (ratio of aromatic carbon) is 45.2%.By the low-molecular-weight extract of gained at inert atmosphere at 600 DEG C
Carry out fast pyrogenation, after cooling, collect gaseous product, product liquid (bio oil) and solid product (burnt), test gaseous product
Calorific value, analyzes elementary composition, calorific value and the chemical composition of product liquid.The carbon content of low-molecular-weight extract pyrolysis bio-oils
Up to 86.8%, oxygen content is only 1.3%, and calorific value is up to 42.7MJ/kg (close to commercial diesel and gasoline).Low-molecular-weight extracts
The acids content taking thing pyrolysis gained bio oil is 2.8%, and arene compound content is up to 63.9%.It addition, low-molecular-weight
The calorific value of the gas that extract pyrolysis produces is 12.3MJ/m3。
Embodiment 6
With Cunninghamia lanceolata (Lamb.) Hook. wood flour for biomass former state, after measuring organic solvent (naphthane) mixing of 30g Cunninghamia lanceolata (Lamb.) Hook. wood flour and 300g
It is placed in reactor (mass ratio of Cunninghamia lanceolata (Lamb.) Hook. wood flour and solvent is 1:10), is heated to 360 DEG C and keeps 0min.Then to this mixing
System carries out hot filtration in situ, and the most at room temperature filter after cooling and reduce pressure distillation acquisition solid phase extraction product respectively: high score
Son amount extract and low-molecular-weight extract.The low-molecular-weight extract carbon content of gained is 78.9%, and oxygen content is 15.6%,
Aromaticity (ratio of aromatic carbon) is 56.7%.The low-molecular-weight extract of gained is carried out at inert atmosphere at 450 DEG C soon
Speed pyrolysis, collects gaseous product, product liquid (bio oil) and solid product (burnt), tests the calorific value of gaseous product after cooling,
Analyze elementary composition, calorific value and the chemical composition of product liquid.The carbon content of low-molecular-weight extract pyrolysis gained bio oil is high
Reaching 89.2%, oxygen content is only 1.7%, and calorific value is up to 42.3MJ/kg (close to commercial diesel and gasoline)；Low-molecular-weight extracts
The acids content of thing pyrolysis gained bio oil is only 2.8%, and arene compound content is up to 49.3%.It addition, low-molecular-weight
The calorific value of the gas that extract pyrolysis produces is 13.0MJ/m3。
Comparative example 1
With rice straw for biomass former state, the carbon content of rice straw is 44.1%, oxygen content is 39.1%, aromaticity
(ratio of aromatic carbon) is 8.0%.Rice straw is carried out fast pyrogenation at inert atmosphere at 500 DEG C, after cooling, collects gas
Body product, product liquid (bio oil) and solid product (burnt), the calorific value of test gaseous product, analyze the element group of product liquid
One-tenth, calorific value and chemical composition.The carbon content of the direct pyrolysis bio-oils of rice straw is 42.2%, oxygen content is 43.1%, calorific value
Being 13.5% for 25.9MJ/kg, acids content, arene compound fails to detect.It addition, rice straw is directly pyrolyzed generation
The calorific value of gas be 6.1MJ/m3。
Comparative example 2
With Cunninghamia lanceolata (Lamb.) Hook. wood flour for biomass former state, the carbon content of Cunninghamia lanceolata (Lamb.) Hook. wood flour is 52.5%, oxygen content is 39.4%, aromaticity
(ratio of aromatic carbon) is 22.7%.Cunninghamia lanceolata (Lamb.) Hook. wood flour is carried out fast pyrogenation at inert atmosphere at 500 DEG C, after cooling, collects gas
Body product, product liquid (bio oil) and solid product (burnt), the calorific value of test gaseous product, analyze the element group of product liquid
One-tenth, calorific value and chemical composition.Cunninghamia lanceolata (Lamb.) Hook. wood flour be directly pyrolyzed the carbon content of gained bio oil be 53.5%, oxygen content be 34.5%,
Calorific value is 29.1MJ/kg, acids content is 6.5%, and arene compound fails to detect.It addition, Cunninghamia lanceolata (Lamb.) Hook. wood flour is directly pyrolyzed
The calorific value of the gas produced is 8.4MJ/m3。
Comparative example and comparative example are it can be seen that the carbon content of low-molecular-weight extract, the aromaticity (ratio of aromatic carbon
Example) it is significantly higher than biomass former state, oxygen content is substantially less than biomass former state.The bio oil that the pyrolysis of low-molecular-weight extract produces
Carbon content, calorific value, arene compound content be significantly higher than the bio oil that the pyrolysis of biomass former state produces；Low-molecular-weight extracts
The oxygen content of bio oil, acids content that thing pyrolysis produces are substantially less than the bio oil that the pyrolysis of biomass former state produces.Further, low
The gas heating value that molecular weight extractables pyrolysis produces is significantly higher than the gas that the pyrolysis of biomass former state produces.
To sum up, directly it is pyrolyzed compared to biomass, prepared by the new coupled biological matter thermosol extraction proposed and pyrolytic technique
Bio oil and the quality of gas all obtain and significantly improve.
As it will be easily appreciated by one skilled in the art that and the foregoing is only presently preferred embodiments of the present invention, not in order to
Limit the present invention, all any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, all should comprise
Within protection scope of the present invention.
Claims (7)
1. one kind couples the method that thermosol extracts and high-quality biological oil and gas are prepared in pyrolysis, it is characterised in that include as follows
Step:
(1) use thermosol extraction that biomass carry out deoxidation upgrading: first by biomass with organic solvent by 1:6's～1:15
Mass ratio mixing is placed in reactor, is heated to 250 DEG C～the temperature of 360 DEG C, carries out hot filtration in situ；Filter extraction residual
Slag, obtains the mixture of solvent and extract；Then, the mixture of described solvent and extract is cooled to room temperature, to cooling
Extract insoluble in solvent carries out being filtrated to get high molecular extract afterwards；Still the extract being dissolved in solvent after cooling is subtracted
Pressure distillation, removes solvent and obtains low-molecular-weight extract；
(2) under an inert atmosphere described low-molecular-weight extract is carried out fast pyrogenation under the conditions of 450-600 DEG C, receive after cooling
Collection is pyrolyzed the bio oil of generation, Jiao and includes the gaseous product of hydrogen, methane, carbon monoxide and carbon dioxide.
Method the most according to claim 1, it is characterised in that before the most hot filtration, is incubated 0-90min.
Method the most according to claim 1, it is characterised in that described inert atmosphere includes N2, Ar and He.
Method the most according to claim 1, it is characterised in that described biomass include that agricultural wastes and forestry are discarded
Thing.
Method the most according to claim 4, it is characterised in that described agricultural wastes are farmland residue, orchard residual
Thing and/or processing of farm products garbage.
Method the most according to claim 4, it is characterised in that described forestry waste is forest harvesting residue, timber
Industrial wood waste and/or forest cultivation beta pruning residue.
7. according to described method arbitrary in Claims 1-4, it is characterised in that described organic solvent includes: naphthane, 1-
Any one in methyl naphthalene, thick methylnaphthalene oil or washing oil.
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| CN108281298A (en) * | 2018-02-05 | 2018-07-13 | 华中科技大学 | The method for preparing electrode material for super capacitor based on biomass thermosol extract |
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| 南占东，等: "油料作物秸秆快速热解及其生物油特性的研究", 《中国油料作物学报》 * |
| 朱贤青，等: "稻杆的热溶剂提质及多级分离", 《燃料化学学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108277558A (en) * | 2017-12-28 | 2018-07-13 | 华中科技大学 | Biomass extract prepares the method and carbon fiber of carbon fiber with polyacrylonitrile cospinning |
| CN108277558B (en) * | 2017-12-28 | 2020-10-30 | 华中科技大学 | Method for preparing carbon fiber by co-spinning biomass extract and polyacrylonitrile and carbon fiber |
| CN108281298A (en) * | 2018-02-05 | 2018-07-13 | 华中科技大学 | The method for preparing electrode material for super capacitor based on biomass thermosol extract |
| CN108281298B (en) * | 2018-02-05 | 2019-10-08 | 华中科技大学 | The method for preparing electrode material for super capacitor based on biomass thermosol extract |
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