CN104312604B - A kind of improve the method for creosote content in biomass molding fuel pyrolytic tar - Google Patents
A kind of improve the method for creosote content in biomass molding fuel pyrolytic tar Download PDFInfo
- Publication number
- CN104312604B CN104312604B CN201410605168.5A CN201410605168A CN104312604B CN 104312604 B CN104312604 B CN 104312604B CN 201410605168 A CN201410605168 A CN 201410605168A CN 104312604 B CN104312604 B CN 104312604B
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- CN
- China
- Prior art keywords
- tar
- biomass molding
- molding fuel
- creosote
- pyrolysis
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
- C10C1/00—Working-up tar
- C10C1/19—Working-up tar by thermal treatment not involving distillation
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
-
- 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
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The invention discloses and a kind of improve the method for creosote content in biomass molding fuel tar, be adapted to prepare with pine sawdust, cedar sawdust and hardwood crumbs for rod shape fuel pyrolysis under the conditions of aerobic environment that raw material is pressed into the production technology of forming charcoal.(V under the conditions of alkalescence air atmosphereNH3:VAir=(1-3): 100), making biomass molding fuel be pyrolyzed, wherein ammonia is to produce by the mode of ammonia heating.This method for pyrolysis can make the composition of biomass molding fuel pyrolytic tar that significantly change occurs, wherein the total relative amount of creosote can bring up to 85%wt-92%wt from less than 80%wt, the substitution ratio that tar byproduct is carried out in synvaren synthetic reaction at part replacement phenol improves to 30%-50% from 25%, the pollution that biomass molding fuel production process is brought to environment because of tar byproduct can be reduced, and reduce phenolic resin adhesive preparation cost.
Description
Technical field
The present invention relates to the method for pyrolysis of a kind of biomass molding fuel, especially relate to one and utilize pine sawdust, cedar sawdust
And hardwood crumbs is in the production technology that forming charcoal is prepared in rod shape fuel pyrolysis under the conditions of aerobic environment that raw material is pressed into
The method that tar creosote content improves.
Background technology
China has abundant biomass resource, and the solid molding fuel annual production with wood flour as waste is at 150,000 tons
Left and right, it can produce biomass molding charcoal through further pyrolysis deep processing, the tar byproduct thus brought annual about 5
Ten thousand tons, tar is the relatively thick liquid of a kind of black, containing part creosote class, including phenol, 2-methylphenol, 4-
Methylphenol, 2-methoxyphenol, 3,4-xylenol, 2-ethyl-phenol etc..Phenols has harm to environment, because of
This, the tar byproduct developed in forming charcoal preparation process is the good thing made a silk purse out of a sow's ear.Phenolic resin glue has excellence
Glue-joint strength, good resistance to water, thermostability and chemical stability, be the main glue of current indoor and outdoor wood-based plate.
But its curing rate is slow, solidification temperature is high, and cost is the highest.Current research is with in formed of xylolite charcoal preparation process at present
The phenol that tar byproduct part fictitious hosts is higher, carries out the synthesis of synvaren, has certain practicality,
The most also the utilization of resources for tar provides a kind of new approach.
Current forming charcoal is prepared the creosote of common process (only using hot-air as pyrolysis medium) tar byproduct and is the most relatively contained
Amount, less than 80%, causes tar byproduct to substitute, in part, the replacement ratio that phenol carries out in synvaren synthetic reaction
Example the highest (less than 25%), tar byproduct can not make full use of formation waste, in turn result in environmental pollution.
Summary of the invention
The present invention provides a kind of and improves the method for creosote content in biomass molding fuel tar, the present invention biology obtained
Matter shaped fuel pyrolytic tar side-product has the advantage that the total relative amount of creosote is high, carries out phenolic aldehyde for partly substituting phenol
Resin adhesive synthesis efficiency is higher.
The present invention adopts the following technical scheme that and a kind of improves the method for creosote content in biomass molding fuel pyrolytic tar,
Under the conditions of oxygen-containing, carry out pyrolysis with biomass molding fuel and obtain biomass moulding activated carbon and tar byproduct, be pyrolyzed
Carrying out under the conditions of alkalescence is oxygen-containing, wherein the volume ratio of ammonia and air is VNH3:VAir=(1-3): 100.
Described ammonia is to produce by the mode of ammonia heating, and heating-up temperature is 300-500 DEG C.
During pyrolysis, final pyrolysis temperature is 600-850 DEG C, and pyrolytic process heating rate is 15-30 DEG C/h.
Described biomass molding fuel includes the rod shape fuel being pressed into pine sawdust, cedar sawdust or hardwood crumbs for raw material.
Described improves the tar that in biomass molding fuel pyrolytic tar, the method for creosote content obtains, and creosote contains the most relatively
Amount is 85%wt～92%wt.
The described tar that in biomass molding fuel pyrolytic tar, the method for creosote content obtains that improves enters at replacement phenol
Application in row synvaren synthetic reaction, the substitution ratio of phenol is 30%～50%.
Beneficial effect:
The present invention changes traditional with air for being pyrolyzed the biomass rodlike shaped fuel pyrolytic process of medium, adopts innovatively
It is shaped the pyrolysis charring of fuel as pyrolysis medium, with conventional with air for pyrolysis medium with alkalescence air atmosphere
Biomass rodlike shaped fuel pyrolytic process is compared, and makes the composition of biomass molding fuel pyrolytic tar that significantly change to occur,
Wherein the total relative amount of creosote significantly improves, and makes tar byproduct substitute phenol in part and carries out synvaren synthesis
In reaction in hgher efficiency, specifically:
(1) present invention uses alkalescence air atmosphere to be shaped the pyrolysis charring of fuel as pyrolysis medium first, makes raw
There is significantly change in the composition of material shaped fuel pyrolytic tar, wherein the total relative amount of creosote significantly improves, and is conducive to
Improve tar byproduct and carry out the substitution ratio in synvaren synthetic reaction at part replacement phenol, and improve conjunction
Become the quality of product.
(2) rod shape fuel that the present invention is adapted to be pressed into pine sawdust, cedar sawdust and hardwood crumbs for raw material is oxygen-containing
Under environmental condition, the production technology of forming charcoal is prepared in pyrolysis.Under alkaline atmosphere, pyrolysis can make biomass molding fuel pyrolysis Jiao
There is significantly change in oil composition, wherein the total relative amount of creosote can be from common process (only using hot-air as pyrolysis
Medium) bring up to 85%-92% less than 80%, tar byproduct part substitute phenol carry out synvaren conjunction
The substitution ratio in reaction is become to improve to 30%-50% from 25%.
(3) present invention improves the utilization ratio of biomass coke tar, for promoting the efficient utilization of biomass resource, subtracts
The pollution that few biomass molding fuel production process is brought to environment because of tar byproduct, reduces phenolic resin adhesive and prepares
Cost has important function.
Detailed description of the invention
Embodiment 1.
1, the method for pyrolysis of a kind of biomass molding fuel, is adapted to pine sawdust, cedar sawdust and hardwood crumbs as raw material
The production technology of forming charcoal is prepared in the rod shape fuel being pressed into pyrolysis under the conditions of aerobic environment.In alkalescence air atmosphere condition
Lower VNH3:VAir=(1-3): 100, make biomass molding fuel be pyrolyzed, final pyrolysis temperature is 600-850 DEG C, heat
Solution preocess heating rate is 15-30 DEG C/h, and wherein ammonia is to produce by the mode of ammonia heating, and heating-up temperature is
300-500 DEG C.This method for pyrolysis can make the composition of biomass molding fuel pyrolytic tar that significantly change occurs, its
The total relative amount of middle creosote can from common process (only using hot-air as pyrolysis medium) bring up to 85% less than 80%
-92%, tar byproduct substitutes phenol in part and carries out the substitution ratio in synvaren synthetic reaction from 25%
Improve to 30%-50%.
Embodiment 2.
A kind of method for pyrolysis of biomass molding fuel, V under the conditions of alkalescence air atmosphereNH3:VAir=1:100, makes hard
Weed tree sawdust shaped fuel is pyrolyzed, and final pyrolysis temperature is 600 DEG C, and pyrolytic process heating rate is 15 DEG C/h, wherein
Ammonia is to produce by the mode of ammonia heating, and heating-up temperature is 300 DEG C.This method for pyrolysis can make biomass moulding fire
There is significantly change in the composition of material pyrolytic tar, wherein the total relative amount of creosote can be from common process (only with hot-air
As pyrolysis medium) bring up to 85%wt less than 80%wt, tar byproduct part substitute phenol carry out phenolic resin
Substitution ratio in adhesive synthetic reaction improves to 30%wt from 25%wt.
Embodiment 3.
A kind of method for pyrolysis of biomass molding fuel, (V under the conditions of alkalescence air atmosphereNH3:VAir=2:100),
Making pine sawdust shaped fuel be pyrolyzed, final pyrolysis temperature is 700 DEG C, and pyrolytic process heating rate is 20 DEG C/h, its
Middle ammonia is to produce by the mode of ammonia heating, and heating-up temperature is 400 DEG C.This method for pyrolysis can make biomass moulding
There is significantly change in fuel thermal decomposition Jiao's oil composition, wherein the total relative amount of creosote can be (only empty with heat from common process
Gas as pyrolysis medium) bring up to 88%wt less than 80%wt, tar byproduct part substitute phenol carry out phenolic aldehyde tree
Substitution ratio in fat adhesive synthetic reaction improves to 40%wt from 25%wt.
Embodiment 4.
A kind of method for pyrolysis of biomass molding fuel, VNH3:V air=3:100 under the conditions of alkalescence air atmosphere,
Making cedar sawdust shaped fuel be pyrolyzed, final pyrolysis temperature is 850 DEG C, and pyrolytic process heating rate is 30 DEG C/h, its
Middle ammonia is to produce by the mode of ammonia heating, and heating-up temperature is 500 DEG C.This method for pyrolysis can make biomass moulding
There is significantly change in fuel thermal decomposition Jiao's oil composition, wherein the total relative amount of creosote can be (only empty with heat from common process
Gas as pyrolysis medium) bring up to 92% less than 80%, tar byproduct part substitute phenol carry out phenolic resin glue
Substitution ratio in stick synthetic reaction improves to 50% from 25%.
Claims (5)
1. one kind is improved the method for creosote content in biomass molding fuel pyrolytic tar, under the conditions of oxygen-containing, carry out pyrolysis with biomass molding fuel and obtain biomass moulding activated carbon and tar byproduct, it is characterized in that, being pyrolyzed and carry out under the conditions of alkalescence is oxygen-containing, wherein the volume ratio of ammonia and air is VNH3:VAir=(1-3): 100；During pyrolysis, final pyrolysis temperature is 600-850 DEG C, and pyrolytic process heating rate is 15-30 DEG C/h；The total relative amount of creosote in the pyrolytic tar obtained is 85%wt～92%wt.
2. the method for creosote content in raising biomass molding fuel pyrolytic tar as claimed in claim 1, it is characterised in that described ammonia is to produce by the mode of ammonia heating, and heating-up temperature is 300-500 DEG C.
3. the method for creosote content in raising biomass molding fuel pyrolytic tar as claimed in claim 1, it is characterised in that described biomass molding fuel includes the rod shape fuel being pressed into pine sawdust, cedar sawdust or hardwood crumbs for raw material.
4. the tar of the arbitrary described method acquisition improving creosote content in biomass molding fuel pyrolytic tar of claims 1 to 3, it is characterised in that the total relative amount of creosote is 85%wt～92%wt.
5. the arbitrary described tar that in biomass molding fuel pyrolytic tar, the method for creosote content obtains that improves of claims 1 to 3 carries out the application in synvaren synthetic reaction at replacement phenol, it is characterised in that the substitution ratio of phenol is 30%～50%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410605168.5A CN104312604B (en) | 2014-10-30 | 2014-10-30 | A kind of improve the method for creosote content in biomass molding fuel pyrolytic tar |
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|---|---|---|---|
| CN201410605168.5A CN104312604B (en) | 2014-10-30 | 2014-10-30 | A kind of improve the method for creosote content in biomass molding fuel pyrolytic tar |
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| CN104312604A CN104312604A (en) | 2015-01-28 |
| CN104312604B true CN104312604B (en) | 2016-09-28 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105861100B (en) * | 2016-06-20 | 2018-12-14 | 中国林业科学研究院林产化学工业研究所 | A method of reducing biomass molding fuel pyrolytic tar acid value |
| CN106367150A (en) * | 2016-09-22 | 2017-02-01 | 浙江农林大学 | Molding charcoal prepared from wood tar-based adhesive and gasified charcoal |
| CN107337587A (en) * | 2017-07-13 | 2017-11-10 | 华中科技大学 | A kind of method that rich phenol liquid oil is prepared using biomass |
| CN112441885B (en) * | 2020-12-04 | 2022-06-21 | 华中科技大学 | Method for preparing 4-vinylphenol by using lignin at high yield |
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| US20120116135A1 (en) * | 2010-11-09 | 2012-05-10 | Conocophillips Company | Heat integrated process for producing high quality pyrolysis oil from biomass |
| CN104031671B (en) * | 2014-06-30 | 2016-03-02 | 厦门大学 | A kind of biomass pyrolytic prepares the method for bio oil |
| CN104073278A (en) * | 2014-07-15 | 2014-10-01 | 厦门大学 | Method for converting lignin into liquid fuel through adopting two-step method |
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Granted publication date: 20160928 Termination date: 20211030 |