CN112010824A - Method for selectively preparing high-value product by fast pyrolysis of cassava residue - Google Patents
Method for selectively preparing high-value product by fast pyrolysis of cassava residue Download PDFInfo
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- CN112010824A CN112010824A CN202010850730.6A CN202010850730A CN112010824A CN 112010824 A CN112010824 A CN 112010824A CN 202010850730 A CN202010850730 A CN 202010850730A CN 112010824 A CN112010824 A CN 112010824A
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D307/38—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D307/40—Radicals substituted by oxygen atoms
- C07D307/46—Doubly bound oxygen atoms, or two oxygen atoms singly bound to the same carbon atom
- C07D307/48—Furfural
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/26—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D307/30—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D307/32—Oxygen atoms
- C07D307/33—Oxygen atoms in position 2, the oxygen atom being in its keto or unsubstituted enol form
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H1/00—Processes for the preparation of sugar derivatives
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H3/00—Compounds containing only hydrogen atoms and saccharide radicals having only carbon, hydrogen, and oxygen atoms
- C07H3/10—Anhydrosugars, e.g. epoxides
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- 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
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- 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
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/08—Non-mechanical pretreatment of the charge, e.g. desulfurization
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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 method for selectively preparing a high-value product by fast pyrolysis of cassava residue. A method for selectively preparing high-value products by fast pyrolysis of cassava residues comprises the following steps: the method comprises the steps of taking cassava residues as raw materials, carrying out chemical pretreatment on the cassava residues by adopting an acid solution or an alkali solution to obtain pretreated cassava residues, carrying out fast pyrolysis on the pretreated cassava residues at 300-800 ℃ in an oxygen-free environment, wherein the pyrolysis temperature rise rate is 10-50 ℃/ms, and the pyrolysis time is 5-20 s. According to the method, sulfuric acid or sodium hydroxide is used as a chemical pretreatment agent, the cassava residue is subjected to simple chemical pretreatment and then subjected to fast pyrolysis, and a bio-oil product with higher specific high-value chemical content can be obtained.
Description
Technical Field
The invention relates to the technical field of biomass energy utilization, in particular to a method for selectively preparing a high-value product by fast pyrolysis of cassava residues.
Background
The biomass is considered as the best choice for converting the alternative fossil resources into high-value-added solid, liquid and gas products, and has the outstanding characteristics of wide distribution, renewability, large reserves and the like. Among various biomass conversion technologies, thermochemical conversion is an effective way to increase the efficiency of biomass resource utilization, where pyrolysis technologies are able to convert biomass resources into high value fuels and a range of platform compounds. The cassava residues are derived from cassava processing, belong to typical agricultural waste biomass resources, and can be converted into high-value chemicals by adopting a pyrolysis mode due to complex structural components. The current study modulates the Pyrolysis Bio-oil composition mainly by changing the Pyrolysis temperature and feedstock particle size to adjust the product distribution (Pattiya, A.,2011.Bio-oil production via Fast Pyrolysis of bioglass reactions from cassava plants in a fluidized-bed reactor. BioResource technology.102, 1959-1967; Pattiya, A., Sukkasi, S., Vitauuruch Goodwin, V.,2012.Fast Pyrolysis of coconut and cassava reactions in a free-bed reactor. energy 44, 1067-1077; Sirijanus nuclear, S., Sripeerp, K., Pattiya, A., catalysis of Pyrolysis of catalysis in, Australia, S., Sriperv, K., Pattya, A., Australia, cement of reaction in, Australia reaction of coconut, Australia, and reaction of charcoal, and biological reaction of biological reactor, C., R.7, U.S. Pat. No. 1. and U.S. 1. the publication of biological reactor, U.S. Pat. 1. of U.S. Pat. No. 1. the publication of U.S. Pat. No. 1. of U.S. Pat. 1. No. 1. the publication of No. of the publication of FIGS. For conventional pyrolysis of cassava residues, low high-value chemical content is mainly present, and the yield and selectivity of target products, namely hydroxyacetone, 4-hydroxydihydrofuran-2 (3H) -ketone, levoglucosenone and furfural are relatively low. Therefore, a new method for improving the yield of pyrolysis products of the cassava residues is urgently needed to be proposed.
Disclosure of Invention
The invention provides a method for selectively preparing high-value products by quickly pyrolyzing cassava residues.
The invention aims to provide a method for selectively preparing a high-value product by fast pyrolysis of cassava residues, which comprises the following steps: the cassava residues are used as raw materials, chemical pretreatment is carried out on the cassava residues by using an acid solution or an alkali solution to obtain pretreated cassava residues, the pretreated cassava residues are subjected to a fast pyrolysis reaction at 300-800 ℃ in an oxygen-free environment to obtain pyrolysis products, the pyrolysis temperature rise rate is 10-50 ℃/ms, and the pyrolysis time is 5-20 s. The method provided by the invention combines the chemical pretreatment and rapid heating to improve the yield of the target product of cassava residue pyrolysis.
The acid/alkali pretreatment can promote the ring opening and chain breaking reactions in the biomass pyrolysis process, enrich the types of pyrolysis products and promote the formation of aldehyde, ketone and hydrocarbon substances. Wherein, the yield of furfural, 1,4:3, 6-dianhydro-alpha-D-glucopyranose and levoglucosenone in the pyrolysis product after acid pretreatment is obviously improved, and the utilization value of the product is improved. In addition, the method for preparing the high-value product by quickly pyrolyzing the cassava residues, which is provided by the invention, has the advantages of simple production process and low pretreatment cost, and is convenient for continuous production.
Preferably, the chemical pretreatment of the cassava dregs by using the acid solution or the alkali solution comprises the following specific steps: weighing the cassava residues, dispersing the cassava residues in 0.1-5% of acid solution or 0.1-5% of alkali solution by mass percent, filtering and drying after soaking, thus obtaining the pretreated cassava residues.
Further preferably, the acid solution is a sulfuric acid solution, and the alkali solution is a sodium hydroxide solution.
Preferably, the cassava residues are cassava residue powder and/or cassava residue particles which are sieved by a sieve of 50-400 meshes.
Preferably, the oxygen-free condition means that the reaction system is maintained in a nitrogen, argon or helium environment.
Preferably, the heating rate of heating the pretreated cassava residues to the pyrolysis reaction temperature is 20-50 ℃/ms.
Preferably, the pyrolysis reaction temperature is 550-700 ℃, and the pyrolysis time is 10-20 s.
Preferably, the pyrolysis products including hydroxyacetone, 4-hydroxydihydrofuran-2 (3H) -one, levoglucosenone and furfural are detected online by GC-MS.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the method, sulfuric acid or sodium hydroxide is used as a chemical pretreatment agent, the cassava residue is subjected to simple chemical pretreatment and then subjected to fast pyrolysis, and a bio-oil product with higher high-value chemical content compared with the conventional pyrolysis of the cassava residue can be obtained. Compared with the conventional pyrolysis of the raw material cassava dregs, the sulfuric acid or sodium hydroxide pretreatment has a remarkable influence on the pyrolysis behavior of the cassava dregs.
2. The acid/alkali pretreatment is beneficial to loosening the compact structure of the cassava residue to a certain extent, the pyrolysis behavior is obviously transferred to a low-temperature region, and the activation energy required by the pyrolysis is obviously reduced. Acid/base pretreatment enriches the variety of pyrolysis products by promoting ring opening and chain scission reactions, and low concentrations of acid/base pretreatment promote the formation of acids, aldehydes, ketones, phenols, hydrocarbons and their derivatives. Acid pretreatment can improve the yield of furfural, 1,4:3, 6-dianhydro-alpha-D-glucopyranose, and levoglucosenone, while alkaline pretreatment promotes the production of 4-hydroxydihydrofuran-2 (3H) -one. Therefore, the acid/alkali pretreatment is beneficial to the formation of various specific high-value chemicals, and is convenient for subsequent separation and extraction.
Detailed Description
The following examples are further illustrative of the present invention and are not intended to be limiting thereof. The equipment and reagents used in the present invention are, unless otherwise specified, conventional commercial products in the art.
Example 1
Chemical pretreatment of the cassava residues: weighing a certain amount of cassava residue which is sieved by a 100-mesh sieve, dispersing the cassava residue in a sodium hydroxide solution with the mass fraction of 0.5%, soaking for 2h, filtering, and drying at 100 ℃ for 10h to obtain the pretreated cassava residue raw material.
0.2mg of pretreated cassava residue is subjected to pyrolysis reaction for 10s at 550 ℃ in a cracker (CDS 5200analytical pyrolyzer) in a helium environment at the heating rate of 10 ℃/ms, and a pyrolysis product is subjected to online analysis by using an Agilent 7890A/5975C gas chromatograph-mass spectrometer.
Comparative example 1
Carrying out pyrolysis reaction on cassava residue which is sieved by a 100-mesh sieve at 550 ℃ for 10s in a cracker (CDS 5200analytical pyrolyzer) in a helium environment at the heating rate of 10 ℃/ms, and carrying out online analysis on a pyrolysis product by using an Agilent 7890A/5975C gas chromatograph-mass spectrometer.
The liquid products obtained in example 1 and comparative example 1 were analyzed by Agilent 7890A/5975C GC and NIST14 mass spectrometer for various high-value chemical contents, and the yield of hydroxyacetone increased from 3% to 14.13% and the yield of 4-hydroxydihydrofuran-2 (3H) -one increased from 5.26% to 10.37% in example 1 compared with comparative example 1.
Examples 2 to 5
Referring to example 1, except that the sodium hydroxide solution used for pretreatment was varied in concentration and mass fractions were 0.1%, 1%, 3%, and 5%, respectively, see table 1, and the main products and yields are detailed in table 1.
Examples 6 to 10
Referring to example 1, except that the kinds and concentrations of acid and alkali used in the pretreatment were different, sodium hydroxide was changed to sulfuric acid in mass fractions of 0.1%, 0.5%, 1%, 3%, 5%, respectively, and the main products and yields are shown in table 1.
Examples 11 to 13
Referring to example 1, the difference is that the particle size of the raw material is different, 50 mesh, 200 mesh, 400 mesh, the main product and yield are detailed in table 1.
Examples 14 to 15
Referring to example 1, except that the temperature rise rate at the time of pyrolysis was different, 20 ℃/ms and 50 ℃/ms, respectively, the main products and the yields are detailed in table 1.
Examples 16 to 23
Referring to example 1, except for the kind of acid and base used for the pretreatment and the pyrolysis reaction temperature, the main products and yields are detailed in table 1.
Examples 24 to 25
Referring to example 1, except for the kind of acid and base used for the pretreatment and the pyrolysis reaction temperature, the main products and yields are detailed in table 1.
Examples 26 to 27
Referring to example 13, except that the pyrolysis time was different, the main products and yields are detailed in table 1.
Examples 28 to 29
Referring to example 18, except for the temperature rise rate and pyrolysis time, the main products and yields are detailed in table 1.
TABLE 1
As can be seen from table 1, different atmosphere conditions do not significantly affect the yield of pyrolysis of specific target products, the yields of hydroxyacetone and 4-hydroxydihydrofuran-2 (3H) -one in the pyrolysis products are significantly increased after alkaline pretreatment, and acid pretreatment is favorable for the production of levoglucosenone and furfural. Properly increasing the heating rate and prolonging the pyrolysis time has the effect of promoting the yield of hydroxyacetone and 4-hydroxydihydrofuran-2 (3H) -ketone in the pyrolysis product of the alkali pretreatment raw material, and also has the effect of promoting the yield of levoglucosenone and furfural in the pyrolysis product of the acid pretreatment raw material.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.
Claims (8)
1. A method for selectively preparing high-value products through rapid pyrolysis of cassava dregs is characterized in that cassava dregs are used as raw materials, chemical pretreatment is carried out on the cassava dregs through an acid solution or an alkali solution to obtain pretreated cassava dregs, the pretreated cassava dregs are pyrolyzed at 300-800 ℃ in an oxygen-free environment to obtain pyrolysis products, the pyrolysis temperature rise rate is 10-50 ℃/ms, and the pyrolysis time is 5-20 s.
2. The method for selectively preparing high-value products by fast pyrolysis of cassava dregs according to claim 1, wherein the chemical pretreatment of the cassava dregs with an acid solution or an alkali solution comprises the following specific steps: weighing the cassava residues, dispersing the cassava residues in 0.1-5% of acid solution or 0.1-5% of alkali solution by mass percent, filtering and drying after soaking, thus obtaining the pretreated cassava residues.
3. The method for selectively producing high-value products by fast pyrolysis of manioc waste as recited in claim 2, wherein the acid solution is a sulfuric acid solution, and the alkali solution is a sodium hydroxide solution.
4. The method for selectively preparing high-value products through rapid pyrolysis of cassava residues according to claim 1, wherein the cassava residues are cassava residue powder or cassava residue particles which are sieved by a 50-400-mesh sieve.
5. The method for selectively producing high-value products by fast pyrolysis of manioc waste as claimed in claim 1, wherein the oxygen-free condition means that the reaction system is maintained in nitrogen, argon or helium environment.
6. The method for selectively preparing high-value products by rapidly pyrolyzing the manioc wastes according to claim 1, wherein the heating rate of heating the pretreated manioc wastes to the pyrolysis reaction temperature is 20-50 ℃/ms.
7. The method for selectively preparing high-value products through rapid pyrolysis of the cassava residues according to claim 1, wherein the pyrolysis reaction temperature is 550-700 ℃, and the pyrolysis time is 10-20 s.
8. The method for preparing high-quality bio-oil by pyrolyzing manioc waste according to claim 1, wherein the pyrolysis products comprise hydroxyacetone, 4-hydroxydihydrofuran-2 (3H) -one, levoglucosenone and furfural.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999676A (en) * | 2006-12-31 | 2007-07-18 | 安徽理工大学 | Process of preparing rich acetone alcohol biological oil by biomass microwave catalytic pyrolysis |
| CN101684069A (en) * | 2008-09-24 | 2010-03-31 | 中国科学院过程工程研究所 | Method for enriching acetol from biomass pyrolysis liquid aqueous phase system |
| CN101787006A (en) * | 2010-01-20 | 2010-07-28 | 中国林业科学研究院林产化学工业研究所 | Method for directional thermal degradation of fiber biomass |
| US20130340746A1 (en) * | 2012-06-21 | 2013-12-26 | Iowa State University Research Foundation, Inc. | Method for pretreating lignocellulosic biomass |
| CN104560093A (en) * | 2013-10-22 | 2015-04-29 | 中国石油化工股份有限公司 | Method for preparing fuel oil from biomass |
| CN105906671A (en) * | 2016-04-27 | 2016-08-31 | 浙江工业大学 | Method for preparing high-additional-value chemicals by different pH acid-alkali pretreatment of biomass and one-step cracking |
-
2020
- 2020-08-21 CN CN202010850730.6A patent/CN112010824A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999676A (en) * | 2006-12-31 | 2007-07-18 | 安徽理工大学 | Process of preparing rich acetone alcohol biological oil by biomass microwave catalytic pyrolysis |
| CN101684069A (en) * | 2008-09-24 | 2010-03-31 | 中国科学院过程工程研究所 | Method for enriching acetol from biomass pyrolysis liquid aqueous phase system |
| CN101787006A (en) * | 2010-01-20 | 2010-07-28 | 中国林业科学研究院林产化学工业研究所 | Method for directional thermal degradation of fiber biomass |
| US20130340746A1 (en) * | 2012-06-21 | 2013-12-26 | Iowa State University Research Foundation, Inc. | Method for pretreating lignocellulosic biomass |
| CN104560093A (en) * | 2013-10-22 | 2015-04-29 | 中国石油化工股份有限公司 | Method for preparing fuel oil from biomass |
| CN105906671A (en) * | 2016-04-27 | 2016-08-31 | 浙江工业大学 | Method for preparing high-additional-value chemicals by different pH acid-alkali pretreatment of biomass and one-step cracking |
Non-Patent Citations (1)
| Title |
|---|
| JUN ZHANG等: "Thermal behaviors and kinetics for fast pyrolysis of chemical pretreated waste cassava residues", 《ENERGY》 * |
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Effective date of registration: 20210923 Address after: Guangzhou City, Guangdong province 510640 energy road No. 2 Tianhe District Wushan Applicant after: GUANGZHOU INSTITUTE OF ENERGY CONVERSION, CHINESE ACADEMY OF SCIENCES Applicant after: Guangdong Provincial Laboratory of marine science and engineering of South China (Guangzhou) Address before: Guangzhou City, Guangdong province 510640 energy road No. 2 Tianhe District Wushan Applicant before: GUANGZHOU INSTITUTE OF ENERGY CONVERSION, CHINESE ACADEMY OF SCIENCES |
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