CN103555353A - Method for catalyzing liquefaction of plant raw material by supercutical fluid - Google Patents
Method for catalyzing liquefaction of plant raw material by supercutical fluid Download PDFInfo
- Publication number
- CN103555353A CN103555353A CN201310374307.3A CN201310374307A CN103555353A CN 103555353 A CN103555353 A CN 103555353A CN 201310374307 A CN201310374307 A CN 201310374307A CN 103555353 A CN103555353 A CN 103555353A
- Authority
- CN
- China
- Prior art keywords
- plant material
- raw material
- supercutical fluid
- plant raw
- liquefaction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000012530 fluid Substances 0.000 title claims abstract description 19
- 239000002994 raw material Substances 0.000 title abstract description 7
- 239000011964 heteropoly acid Substances 0.000 claims abstract description 9
- 239000007787 solid Substances 0.000 claims abstract description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000002904 solvent Substances 0.000 claims abstract description 7
- 230000001476 alcoholic effect Effects 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 30
- 230000003197 catalytic effect Effects 0.000 claims description 14
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical group OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 12
- 239000002253 acid Substances 0.000 claims description 5
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 3
- 239000012075 bio-oil Substances 0.000 claims description 3
- DHRLEVQXOMLTIM-UHFFFAOYSA-N phosphoric acid;trioxomolybdenum Chemical compound O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.OP(O)(O)=O DHRLEVQXOMLTIM-UHFFFAOYSA-N 0.000 claims description 3
- 229910000166 zirconium phosphate Inorganic materials 0.000 claims description 3
- LEHFSLREWWMLPU-UHFFFAOYSA-B zirconium(4+);tetraphosphate Chemical compound [Zr+4].[Zr+4].[Zr+4].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LEHFSLREWWMLPU-UHFFFAOYSA-B 0.000 claims description 3
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 2
- 229960004756 ethanol Drugs 0.000 claims description 2
- 238000000967 suction filtration Methods 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 9
- 239000003377 acid catalyst Substances 0.000 abstract description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 6
- 239000002028 Biomass Substances 0.000 abstract description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract description 5
- 238000003912 environmental pollution Methods 0.000 abstract description 4
- 150000002148 esters Chemical class 0.000 abstract description 3
- 239000003054 catalyst Substances 0.000 abstract 2
- JOOXCMJARBKPKM-UHFFFAOYSA-M 4-oxopentanoate Chemical compound CC(=O)CCC([O-])=O JOOXCMJARBKPKM-UHFFFAOYSA-M 0.000 abstract 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 239000000295 fuel oil Substances 0.000 abstract 1
- 239000003254 gasoline additive Substances 0.000 abstract 1
- 229940058352 levulinate Drugs 0.000 abstract 1
- 229910017604 nitric acid Inorganic materials 0.000 abstract 1
- 231100000956 nontoxicity Toxicity 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
- 238000002390 rotary evaporation Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 238000007873 sieving Methods 0.000 abstract 1
- 235000011149 sulphuric acid Nutrition 0.000 abstract 1
- 241000196324 Embryophyta Species 0.000 description 21
- 238000010521 absorption reaction Methods 0.000 description 6
- 230000035484 reaction time Effects 0.000 description 6
- IYDGMDWEHDFVQI-UHFFFAOYSA-N phosphoric acid;trioxotungsten Chemical compound O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.OP(O)(O)=O IYDGMDWEHDFVQI-UHFFFAOYSA-N 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 241000218645 Cedrus Species 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- MWAYRGBWOVHDDZ-UHFFFAOYSA-N Ethyl vanillate Chemical compound CCOC(=O)C1=CC=C(O)C(OC)=C1 MWAYRGBWOVHDDZ-UHFFFAOYSA-N 0.000 description 2
- 240000008042 Zea mays Species 0.000 description 2
- 235000016383 Zea mays subsp huehuetenangensis Nutrition 0.000 description 2
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- -1 levulinic acid ester Chemical class 0.000 description 2
- 229920005610 lignin Polymers 0.000 description 2
- 235000009973 maize Nutrition 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- GMEONFUTDYJSNV-UHFFFAOYSA-N Ethyl levulinate Chemical compound CCOC(=O)CCC(C)=O GMEONFUTDYJSNV-UHFFFAOYSA-N 0.000 description 1
- 229920002488 Hemicellulose Polymers 0.000 description 1
- 240000006240 Linum usitatissimum Species 0.000 description 1
- 235000004431 Linum usitatissimum Nutrition 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 230000021615 conjugation Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- LHGVFZTZFXWLCP-UHFFFAOYSA-N guaiacol Chemical compound COC1=CC=CC=C1O LHGVFZTZFXWLCP-UHFFFAOYSA-N 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- JOOXCMJARBKPKM-UHFFFAOYSA-N laevulinic acid Natural products CC(=O)CCC(O)=O JOOXCMJARBKPKM-UHFFFAOYSA-N 0.000 description 1
- 229940040102 levulinic acid Drugs 0.000 description 1
- JJJSFAGPWHEUBT-UHFFFAOYSA-N methyl 2-(4-hydroxy-3-methoxyphenyl)acetate Chemical class COC(=O)CC1=CC=C(O)C(OC)=C1 JJJSFAGPWHEUBT-UHFFFAOYSA-N 0.000 description 1
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 230000004304 visual acuity Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention discloses a method for catalyzing the liquefaction of a plant raw material by a supercutical fluid. The method comprises the following steps: 1, crushing the plant raw material, sieving by a 40-60 mesh sieve, and drying; and 2, adding the plant raw material and an alcoholic solvent into an autoclave, reacting in a supercritical state for 10-50min with a solid heteropoly acid as a catalyst, eluting the obtained liquefied product with anhydrous ethanol, carrying out pumping filtration, and carrying out rotary evaporation to obtain biomass oil. The method substantially improves the liquefaction rate of the plant raw material; the method adopting the solid heteropoly acid as a catalyst to substitute a traditional liquid strong acid catalyst, such as H2SO4, HCl and HNO3, has the advantages of small environmental pollution, no corrosion to an apparatus, easy separation and the like; and the obtained biomass oil has a high content of esters, has a highest levulinate content reaching 20.82%, can be directly used as a gasoline additive and biological liquid fuel oil, has the advantages of non-toxicity, high lubricity, high gross calorific value and the like, and is clean energy.
Description
technical field
The invention belongs to green chemical industry field, be specifically related to a kind of method that supercutical fluid catalytic liquefaction plant material obtains high-quality biological matter oil.
Background technology
Along with traditional fossil resource being depended on unduly use, cause that energy security and problem of environmental pollution become increasingly conspicuous, utilize the alternative traditional fossil resource of renewable biomass to be subject to people and more and more pay close attention to.In annual China agroforestry process of manufacture, can produce the plant material waste of enormous amount, people adopt traditional direct combustion method to process conventionally, and this method not only resource utilization is low, and easily causes environmental pollution.Therefore, by thermochemistry method for transformation, realize the efficient liquefaction of plant material, obtain fuel or chemical has application prospect.Supercutical fluid refers to that temperature and pressure is all close to or higher than the fluid of its critical temperature and emergent pressure, has high diffusibility and high resolution, can realize the liquefaction of plant material using it as solvent.But plant material liquefied fraction is conventionally lower under catalyst-free existence condition.Result of study shows that traditional strong acid catalysts such as sulfuric acid, hydrochloric acid can promote the liquefaction of plant material in supercutical fluid, but they have the shortcomings such as strong oxidizing property, severe corrosive, are unfavorable for suitability for industrialized production.Solid heteropoly acid, as a kind of efficient, eco-friendly catalyzer, can substitute the traditional liquid strong acid such as sulfuric acid, hydrochloric acid, meets green chemical industry development trend, can realize the efficient liquefaction of plant material.
Summary of the invention
The object of the present invention is to provide a kind of method of supercutical fluid catalytic liquefaction plant material, take alcohol as solvent, solid heteropoly acid is catalyzer, under super critical condition, realize the liquefaction of biomass, in gained liquefaction oil product, Ester content is high, as clean energy, can directly be used as gasoline dope, biomass liquid fuel etc.
For achieving the above object, the present invention adopts following technical scheme:
A kind of method of supercutical fluid catalytic liquefaction plant material comprises the following steps:
(1) plant material is pulverized and is crossed 40 ~ 60 mesh sieves, oven dry;
(2) in autoclave, add plant material and alcoholic solvent, take solid heteropoly acid as catalyzer, under supercritical state, react after 10-50min, liquefied product is washed out with dehydrated alcohol, pass through suction filtration, revolve and steam acquisition bio-oil.
Described alcoholic solvent is methyl alcohol, ethanol or Virahol.
Described solid heteropoly acid is phospho-wolframic acid, phospho-molybdic acid or zirconium phosphate.
Described plant material comprises timber, stalk, crudefiber crop.
Remarkable advantage of the present invention is:
(1) can improve widely the liquefied fraction of plant material.
(2) take solid heteropoly acid as catalyzer, substitute traditional liquid strong acid catalyst as H
2sO
4, HCl, HNO
3deng, there is environmental pollution little, not etching apparatus, the advantage such as easily separated.
(3) in the bio-oil obtaining, Ester content is high, and particularly levulinic acid ester content, up to 20.82%, can directly be used as gasoline dope, bio liquid fuel, has the advantages such as nontoxic, high lubricity, high heating value, is a kind of clean energy.
Accompanying drawing explanation
Fig. 1 is the infrared spectrogram of the liquefied residue (b) of cedar sawdust (a) and embodiment 4.
Embodiment
A kind of concrete steps of method of supercutical fluid catalytic liquefaction plant material are:
(1) take 150 g dehydrated alcohols, 1 g cedar sawdust adds in autoclave, adds 0.5 g phosphotungstic acid catalyst.
(2) reactor is heated to 260 ℃, reaction times 30 min, liquefied fraction is 95.35%.
embodiment 2
A kind of concrete steps of method of supercutical fluid catalytic liquefaction plant material are:
(1) take 120 g methyl alcohol, 1 g maize straw adds in autoclave, adds 0.5 g phospho-molybdic acid catalyzer.
(2) reactor is heated to 280 ℃, reaction times 10 min, liquefied fraction is 90.34%.
embodiment 3
A kind of concrete steps of method of supercutical fluid catalytic liquefaction plant material are:
(1) take 120 g Virahols, 1 g flax adds in autoclave, adds 0.4 g zirconium phosphate catalyzer.
(2) reactor is heated to 250 ℃, reaction times 30 min, liquefied fraction is 91.53%.
embodiment 4
?a kind of concrete steps of method of supercutical fluid catalytic liquefaction plant material are:
(1) take 150 g dehydrated alcohols, 1 g cedar sawdust adds in autoclave, adds 0.4 g phosphotungstic acid catalyst.
(2) reactor is heated to 260 ℃, reaction times 30 min, liquefied fraction is 92.68%.
embodiment 5
A kind of concrete steps of method of supercutical fluid catalytic liquefaction plant material are:
(1) take 120 g methyl alcohol, 1 g cedar sawdust adds in autoclave, adds 0.5 g phosphotungstic acid catalyst.
(2) reactor is heated to 280 ℃, reaction times 30 min, liquefied fraction is 93.41%.
embodiment 6
A kind of concrete steps of method of supercutical fluid catalytic liquefaction plant material are:
(1) take 120g Virahol, 1 g maize straw adds in autoclave, adds 0.5 g phosphotungstic acid catalyst.
(2) reactor is heated to 250 ℃, reaction times 50 min, liquefied fraction is 92.31%.
embodiment 7
Adopt the U.S. Thermo electro Nicolet of company 380 type Fourier transformation infrared spectrometers (FT-IR) to carry out FT-IR sign to plant material, embodiment 4 liquefied residues: by sample mill powdered, in the abundant mixed grinding of 1:150 ratio, compressing tablet, wave number useful range is 4000 ~ 400 cm with KBr
-1, scanning times is 32 s
-1, resolving power is 4 cm
-1.Result as shown in Figure 1.Comparing with its raw material, there is obvious variation in the FT-IR collection of illustrative plates of liquefied residue.In liquefied residue infrared spectrum at 1079 cm
-1, 984 cm
-1, 892 cm
-1with 811 cm
-1there is the strong absorption peak of feature of keggin structure phospho-wolframic acid in place, belongs to respectively tetrahedron oxygen P-O
avibration, end oxygen W=O
dvibration, bridging oxygen W-O
b-W vibration, bridging oxygen W-Oc-W vibration, consistent with the standard FT-IR collection of illustrative plates of phospho-wolframic acid, illustrate that liquefied residue contains more phosphotungstic acid catalyst.3392 cm
-1, 2915 cm
-1place's absorption peak weakens, 1732 cm
-1place's absorption peak has disappeared, and illustrates that hemicellulose liquefies completely, can see at 2860 cm
-1there are the charateristic avsorption band of an xylogen methoxyl group, 1700 cm in place
-1place's absorption peak belongs to the C=O stretching vibration with aromatic proton conjugation, and 1600,1420cm
-1still there is belonging to phenyl ring skeletal vibration absorption peak, but 1510 cm
-1place's absorption peak has disappeared, and this explanation has material enrichment in residue of benzene ring structure, and different from lignin structure in raw material, is mainly liquefying lignin derivative.
embodiment 8
Normal hexane is added to embodiment 4 liquefaction oil products, by extraction, centrifugal, get supernatant liquor, be defined as light oil.Adopt the U.S. 7890A/5975C of Agilent company gas chromatograph-mass spectrometer (GC-MS) to characterize light oil: chromatographic column is mm * 0.25, Semi-polarity DB-17m(30 m * 0.25 μ m), 280 ℃ of injector temperatures; Heating schedule, starting temperature: 50 ℃, keep 3 min, with 5 ℃ of min
-1rise to 280 ℃, keep 10 min, carrier gas (He) flow velocity 20 mLmin
-1.Sample introduction 1 μ L, splitting ratio 15:1; 150 ℃ of quadrupole temperature, 230 ℃ of ion source temperatures, 280 ℃ of satellite interface temperature; Retrieval spectrum storehouse is NIST 2011.The composition of known liquefaction oil product is complicated, and GC-MS is also difficult to all components completely separated, illustrates that wood chip liquefaction is a very complicated reaction process.By peak area normalization method, estimate the relative content of these compositions.Liquefaction oil product contains compared with polyester class and aromatic compound, ethyl levulinate content is up to 20.82%, is secondly 4-hydroxyl 3-methoxyphenylacetic acid methyl esters 5.18%, hydroxyanisole 3.78%, vanillic acid ethyl ester 3.31%, also has the materials such as 2-methoxyl group-4-propylphenol, 2-methoxyl group-4-methylphenol, 2-methoxyl group-4-ethylphenol in addition.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (4)
1. a method for supercutical fluid catalytic liquefaction plant material, is characterized in that: comprise the following steps:
(1) plant material is pulverized and is crossed 40 ~ 60 mesh sieves, oven dry;
(2) in autoclave, add plant material and alcoholic solvent, take solid heteropoly acid as catalyzer, under supercritical state, react after 10-50min, liquefied product is washed out with dehydrated alcohol, pass through suction filtration, revolve and steam acquisition bio-oil.
2. the method for supercutical fluid catalytic liquefaction plant material according to claim 1, is characterized in that: described alcoholic solvent is methyl alcohol, ethanol or Virahol.
3. the method for supercutical fluid catalytic liquefaction plant material according to claim 1, is characterized in that: described solid heteropoly acid is phospho-wolframic acid, phospho-molybdic acid or zirconium phosphate.
4. the method for supercutical fluid catalytic liquefaction plant material according to claim 1, is characterized in that: described plant material comprises timber, stalk, crudefiber crop.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310374307.3A CN103555353B (en) | 2013-08-26 | 2013-08-26 | A kind of method of supercritical fluid catalytic liquefaction plant material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310374307.3A CN103555353B (en) | 2013-08-26 | 2013-08-26 | A kind of method of supercritical fluid catalytic liquefaction plant material |
Publications (2)
Publication Number | Publication Date |
---|---|
CN103555353A true CN103555353A (en) | 2014-02-05 |
CN103555353B CN103555353B (en) | 2016-10-05 |
Family
ID=50009725
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201310374307.3A Expired - Fee Related CN103555353B (en) | 2013-08-26 | 2013-08-26 | A kind of method of supercritical fluid catalytic liquefaction plant material |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN103555353B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
CN105860428A (en) * | 2016-05-30 | 2016-08-17 | 四川国能高科生物树脂有限公司 | Biomass oil suitable for modifying thermosetting resin and preparation method thereof |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107090303B (en) * | 2017-05-22 | 2018-08-07 | 华南农业大学 | Prepared by overcritical mixed solvent liquefaction lignin is rich in aromatic compound bio oil method |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6180845B1 (en) * | 1999-10-07 | 2001-01-30 | Board Of Supervisors Of Louisiana State University And Agricultural And Mechanical College | Transforming biomass to hydrocarbon mixtures in near-critical or supercritical water |
JP2003238969A (en) * | 2002-02-19 | 2003-08-27 | Shigeru Ito | Technology for hydrolysis of impact-loaded bamboo, timber and other plant biomass using subcritical fluid or supercritical fluid |
CN1687315A (en) * | 2005-04-19 | 2005-10-26 | 华东理工大学 | Supercritical liquefaction method for biomass |
CN101358138A (en) * | 2008-09-23 | 2009-02-04 | 浙江大学 | Method for improving quality of biomass oil |
CN101407727A (en) * | 2008-10-29 | 2009-04-15 | 扬州大学 | Method for preparing biomass liquefied oil by biomass catalytic liquefaction |
WO2009059369A1 (en) * | 2007-11-06 | 2009-05-14 | Advanced Biofuels Ltd | Liquefaction process |
CN102321230A (en) * | 2011-06-07 | 2012-01-18 | 华南理工大学 | Plant fiber-based polylol and preparation method thereof |
CN103013552A (en) * | 2012-12-17 | 2013-04-03 | 常州大学 | Method for preparing biological oil by liquefying biomass under atmospheric pressure by using solid acid catalyst |
-
2013
- 2013-08-26 CN CN201310374307.3A patent/CN103555353B/en not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6180845B1 (en) * | 1999-10-07 | 2001-01-30 | Board Of Supervisors Of Louisiana State University And Agricultural And Mechanical College | Transforming biomass to hydrocarbon mixtures in near-critical or supercritical water |
JP2003238969A (en) * | 2002-02-19 | 2003-08-27 | Shigeru Ito | Technology for hydrolysis of impact-loaded bamboo, timber and other plant biomass using subcritical fluid or supercritical fluid |
CN1687315A (en) * | 2005-04-19 | 2005-10-26 | 华东理工大学 | Supercritical liquefaction method for biomass |
WO2009059369A1 (en) * | 2007-11-06 | 2009-05-14 | Advanced Biofuels Ltd | Liquefaction process |
CN101358138A (en) * | 2008-09-23 | 2009-02-04 | 浙江大学 | Method for improving quality of biomass oil |
CN101407727A (en) * | 2008-10-29 | 2009-04-15 | 扬州大学 | Method for preparing biomass liquefied oil by biomass catalytic liquefaction |
CN102321230A (en) * | 2011-06-07 | 2012-01-18 | 华南理工大学 | Plant fiber-based polylol and preparation method thereof |
CN103013552A (en) * | 2012-12-17 | 2013-04-03 | 常州大学 | Method for preparing biological oil by liquefying biomass under atmospheric pressure by using solid acid catalyst |
Non-Patent Citations (1)
Title |
---|
唐仕荣等: ""玉米秆超临界甲醇解聚产物分析"", 《太阳能学报》 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
CN105860428A (en) * | 2016-05-30 | 2016-08-17 | 四川国能高科生物树脂有限公司 | Biomass oil suitable for modifying thermosetting resin and preparation method thereof |
CN105860428B (en) * | 2016-05-30 | 2018-07-27 | 四川国能高科生物树脂有限公司 | A kind of bio-oil and preparation method thereof being modified suitable for thermosetting resin |
Also Published As
Publication number | Publication date |
---|---|
CN103555353B (en) | 2016-10-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Nakason et al. | Characteristics of hydrochar and liquid fraction from hydrothermal carbonization of cassava rhizome | |
Gao et al. | Microwave-assisted hydrothermal treatments for biomass valorisation: a critical review | |
Pala et al. | Hydrothermal carbonization and torrefaction of grape pomace: A comparative evaluation | |
Ye et al. | Liquefaction of bamboo shoot shell for the production of polyols | |
Shuping et al. | Production and characterization of bio-oil from hydrothermal liquefaction of microalgae Dunaliella tertiolecta cake | |
Mazaheri et al. | Sub/supercritical liquefaction of oil palm fruit press fiber for the production of bio-oil: effect of solvents | |
Liu et al. | Hydrothermal liquefaction of cypress: effects of reaction conditions on 5-lump distribution and composition | |
Chellappan et al. | Experimental validation of biochar based green Bronsted acid catalysts for simultaneous esterification and transesterification in biodiesel production | |
Feng et al. | Preparation of methyl levulinate from fractionation of direct liquefied bamboo biomass | |
Wang et al. | Study of a new complex method for extraction of phenolic compounds from bio-oils | |
Durak et al. | Structural analysis of bio-oils from subcritical and supercritical hydrothermal liquefaction of Datura stramonium L. | |
Hishikawa et al. | Direct preparation of butyl levulinate by a single solvolysis process of cellulose | |
Casazza et al. | Pyrolysis of grape marc before and after the recovery of polyphenol fraction | |
Wang et al. | Role of pretreatment with acid and base on the distribution of the products obtained via lignocellulosic biomass pyrolysis | |
Lu et al. | Liquefaction of sawdust in 1-octanol using acidic ionic liquids as catalyst | |
Zhao et al. | Intensified levulinic acid/ester production from cassava by one-pot cascade prehydrolysis and delignification | |
Huang et al. | Microwave-assisted liquefaction of rape straw for the production of bio-oils | |
Verma et al. | Value-addition of wheat straw through acid treatment and pyrolysis of acid treated residues | |
Kawamata et al. | Uniqueness of biphasic organosolv treatment of soft-and hardwood using water/1-butanol co-solvent | |
CN102892864A (en) | Process for liquefying a cellulosic material | |
CN103755506A (en) | Separation method for solid-phase biomass hydrothermal liquefaction products | |
CN103555353A (en) | Method for catalyzing liquefaction of plant raw material by supercutical fluid | |
Bhatnagar et al. | Potential of stepwise pyrolysis for on-site treatment of agro-residues and enrichment of value-added chemicals | |
CN102276847A (en) | Method for separating nut shell lignin by utilizing high-boiling alcohol | |
Wang et al. | Biorefinery process for production of bioactive compounds and bio-oil from Camellia oleifera shell |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161005 |