CN107987911A - One kind is based on additive agent modified biomass by hydro-thermal-formation solid fuel process - Google Patents
One kind is based on additive agent modified biomass by hydro-thermal-formation solid fuel process Download PDFInfo
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- CN107987911A CN107987911A CN201711159651.5A CN201711159651A CN107987911A CN 107987911 A CN107987911 A CN 107987911A CN 201711159651 A CN201711159651 A CN 201711159651A CN 107987911 A CN107987911 A CN 107987911A
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- hydro
- thermal
- biomass
- additive
- agent modified
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/40—Solid fuels essentially based on materials of non-mineral origin
- C10L5/44—Solid fuels essentially based on materials of non-mineral origin on vegetable substances
- C10L5/447—Carbonized vegetable substances, e.g. charcoal, or produced by hydrothermal carbonization of biomass
-
- 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
-
- 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
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The invention discloses one kind to be based on additive agent modified biomass by hydro-thermal formation solid fuel process, and this method comprises the following steps：(1) biomass material after will be broken is mixed with water, and hydro-thermal carbonization reaction is then carried out under the atmosphere of inert gas and obtains hydro-thermal charing mix products；(2) hydro-thermal charing mix products are subjected to separation of solid and liquid and obtain solid product, then crushed, then added additive thereto and be uniformly mixed to obtain mixture；(3) forming processes are carried out to mixture, obtains biological substance shaped granule or biomass moulding block, biomass molding fuel is obtained after dry.The present invention is improved by the design to crucial overall flow technique and the parameter of each concrete technology step with condition, process integration is molded using hydro-thermal, can effectively solve the problem that biomass molding fuel mechanical strength is low, energy density is low compared with prior art and the problem of high energy consumption.
Description
Technical field
The invention belongs to biomass energy technology field, more particularly, to a kind of biomass solid fuel preparation method,
This method is to prepare modified biomass hydro-thermal-formation solid fuel based on additive.
Background technology
As energy security rises to national strategy height and society to the growing interests of air quality problems, exploitation and
It is one of important channel for solving the energy and environmental problem using green novel energy source.Biomass energy as a kind of renewable resource,
Because it is with abundance, nitrogen, sulphur and content of ashes are low, and volatile matter content is high and carbon activity is high, and are using process dioxy
The characteristics of changing carbon-based achievable zero-emission, it is developed and utilized becomes the hot subject that domestic and foreign scholars fall over each other research.
However, numerous researchers have found the characteristic due to biomass material inherently, such as moisture content, oxygen content and alkali
Earth metal constituent content is high, it is simultaneously not suitable for use of directly burning as fuel.In addition, the seasonality of biomass material supply is special
Point greatly limit the utilizability of biomass energy.Meanwhile different biomass materials are in physical size, energy density
With chemical composition etc. existing for significant difference also the transport to biomass, storage and crushing propose stern challenge.For
Solve the above problems, different biomass materials is realized before combustion using hydrothermal pretreatment-shaping process integration and homogenize,
It is a feasible approach that composition structure, which is similar to coal and substitutes coal,.This is because hydrothermal pretreatment there is not the moisture content of biomass
Restricted, adaptability to raw material is wide, and biomass material can save substantial amounts of pretreatment expense, and hydro-thermal without drying process
Alkali metal content is low in pretreated biomass, biomass high conversion rate, the shaped granule after compression forming/forming blocks calorific value
Height, but it is of a relatively high to compress energy consumption.Therefore, it is necessary to environmental-friendly and of low cost add is added in biomass by hydro-thermal charcoal
Add agent to reduce shaping energy consumption.
The content of the invention
For the disadvantages described above or Improvement requirement of the prior art, changed it is an object of the invention to provide one kind based on additive
Property biomass by hydro-thermal-formation solid fuel process, wherein passing through the design to its crucial overall flow technique and each
The parameter of concrete technology step and condition (such as adding proportion of hydrothermal condition, additive and species, forming processes condition) into
Row improves, and using hydro-thermal-shaping process integration, can effectively solve the problem that shaping biomass fuel mechanical strength compared with prior art
Low, energy density is low and the problem of high energy consumption, its mechanical strength of biomass molding fuel produced by the present invention is 20~50MPa,
Calorific value is not less than 20MJ/kg, and energy consumption is no more than 30J/g, can be used directly as fuel, have high mechanical strength, calorific value height,
The characteristics of energy consumption is low；And it is additive present invention preferably employs wood tar or biodiesel residue, is combined using hydro-thermal-shaping
Technique, can further reduce biomass molding fuel burning produced pollution problem, and additive amount is few, cost
It is low, effect is good.
To achieve the above object, it is proposed, according to the invention, provide one kind and be based on additive agent modified biomass by hydro-thermal-formation solid
Fuel process, it is characterised in that comprise the following steps：
(1) both biomass material and water after will be broken be according to 1：It is added to reaction after the mass ratio mixing of (3~20)
In kettle, hydro-thermal carbonization reaction is then carried out under the atmosphere of inert gas and obtains hydro-thermal charing mix products；The hydro-thermal charing
The reaction temperature of reaction is 160~400 DEG C, and reaction pressure is 2~5Mpa, and the reaction time is 30 minutes~720 minutes；
(2) hydro-thermal charing mix products that the step (1) obtains are subjected to separation of solid and liquid and obtain solid product, so
Break process is carried out to the solid product afterwards, additive is then added thereto and is uniformly mixed to obtain mixture；
(3) mixture obtained to the step (2) carries out forming processes, obtains biological substance shaped granule or biology
Matter forming blocks, biomass molding fuel is obtained after dry.
As present invention further optimization, in the step (2), the additive is wood tar and biodiesel
One or both of residue；In the mixture, the quality of the additive is both solid product butt and the additive
The 1%~10% of quality sum.
As present invention further optimization, the solid product in the step (2) is also by adding water and/or drying
Processing so that the mass percent of moisture is the 12%~20% of mixture entirety in the mixture.
As present invention further optimization, in the step (3), the forming temperature of the forming processes is 10~40
DEG C, briquetting pressure is in 30~60Mpa；Preferably, the forming processes be extrusion forming processing, particular by flat die forming machine,
A kind of progress in ring moulds forming machine, piston impact briquetting machine or spiral squeezing type forming machine.
It is described being combined by stir process progress in the step (2) as present invention further optimization, stir
It is 0.5~1h to mix the time.
As present invention further optimization, in the step (1), it is described it is broken after biomass material its grain diameter
No more than 6mm.
As present invention further optimization, in the step (1), the biomass material is agriculture and forestry organic waste material, preferably
For agricultural stalk.
,, should after carrying out the break process to solid product in the step (2) as present invention further optimization
Its grain diameter of solid product is no more than 0.5mm.
As present invention further optimization, in the step (3), the drying is natural drying.
As present invention further optimization, the biomass molding fuel its moisture content that the step (3) obtains is not
Higher than 15wt%.
By the contemplated above technical scheme of the present invention, compared with prior art, due to using the water based on additive
Heat-shaping process integration, can be greatly reduced the alkali metal content in biomass, be effectively improved biomass molding fuel burning process
Middle dust stratification, slagging, corrosion and pollutant emission problem.The present invention is to mix biomass material and water under the atmosphere of inert gas
Close, and temperature at 160~400 DEG C, hydro-thermal reaction is carried out under the pressure of 2~5Mpa 30 minutes~720 minutes, obtain solid water
Hot carbonizing production；And by hydrothermal pretreatment and after adding additive mixing extruding, formed between additive and charcoal powder particles solid
Bridge so that manufactured shaped fuel has higher viscosity, and shaping energy consumption is greatly reduced, and mechanical strength dramatically increases.The present invention
Used additive is wood tar and biodiesel residue, not only cheap, but also can strengthen the calorific value of shaped fuel.
The present invention is particularly by solid product butt in the mixture to carrying out forming processes, additive and moisture three
Mass percent is controlled so that mixture can be under room temperature (such as 10~40 DEG C), the briquetting pressure of 30~60Mpa
Compression forming (such as extrusion forming), using the overall co-ordination of hydrothermal pretreatment-shaping process integration, can effectively play additive pair
The effect of solid-state hydro-thermal carbonizing production, it is ensured that biological substance shaped granule or biomass moulding block and it is dry after obtained biomass into
The mechanical strength of type fuel.
In addition, the additive (wood tar and biodiesel residue) in the present invention is in the industrial production, it is mainly used for making
Pitch or discarded is taken, not only utilization ratio is low, but also will also result in certain environmental pollution, and the present invention is added into it
During type, the utilization ratio of additive is not only increased, and is greatly improved the quality of biomass molding fuel, is done
To turning waste into wealth.
Particularly, the invention has the advantages that：
(1) hydro-thermal-shaping process integration in the present invention can reach fouling and slagging administered after biomass combustion and produced etc.
Pollution problem, environmental protection, is being molded in compression process the easy bonding for forming Gu Qiao and being beneficial between particle inside biological particles,
The mechanical strength and durability of biological substance shaped granule/forming blocks are improved, reduces the otherness between biomass material.
(2) binding agent using wood tar or biodiesel residue as biomass molding fuel, its cost is low, sticky strong,
Pollution-free, obtained biological substance shaped granule/forming blocks calorific value is high, and shaping energy consumption is low；
(3) production method of the present invention is simple, and the product spatter property prepared is high, and mechanical strength is good.
Brief description of the drawings
Fig. 1 is the stream of the invention based on additive agent modified biomass by hydro-thermal-formation solid preparation of fuel and its application method
Cheng Tu.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in each embodiment of invention described below
Not forming conflict each other can be mutually combined.
Additive agent modified biomass by hydro-thermal-formation solid preparation of fuel and its application method are based in the present invention, can be wrapped
Include following steps：
(1) biomass material being collected into is crushed, it is therefore an objective to increase the contact area of biomass material and water with
Improve the hydro-thermal efficiency of biomass；Then with water (e.g., deionized water) according to 1：The ratio of (3~20) is added to after mixing
In reaction kettle, and carry out hydro-thermal carbonization reaction under an inert atmosphere, reaction temperature is 160~400 DEG C, reaction pressure for 2~
5Mpa, reaction time are 30 minutes~720 minutes, obtain charing material mixed liquor.Biomass material after will be broken carries out water
Heat treatment, can not only improve fuel value, but also the powdered carbon after hydro-thermal is easier to crush, and can further reduce crushing energy
Consumption；
(2) separation of solid and liquid is carried out to the charing material mixed liquor obtained the step (1) Suo Shu, the solid being collected into is residual
Slag, which dry, crushes and adds wood tar or the mixing of biodiesel residue；The break process of solid residue can be grinding, break
Grain diameter after broken is preferably more than 0.5mm；It is gentle to carbonize the material mixed liquor progress obtained product liquid of separation of solid and liquid
Body can further carry out higher value application；
(3) mixture obtained to the step (2) adds 12~20% moisture and is mixed, mixing time
0.5~1h, in order to which stirring is abundant；Then it is 10~40 DEG C in forming temperature by the obtained mixture, shaping pressure
Power is molded to obtain shaping biomass fuel (such as biomass fuels of shaped granule/forming blocks) under the conditions of being 30~60Mpa.
(4) by shaped granule/forming blocks be put into warehouse spontaneously dried (also can using drying by the way of, as long as making most
Lifelong its moisture content of material mold compound less than for example 15%) to keep its mechanical strength, obtain the biomass of qualification into
Type particle/forming blocks, these biological substance shaped granule/forming blocks can be used as shaped fuel.
It is specific embodiment below：
Embodiment 1
I raw materials select and processing
1) biomass
Various agricultural crop straws, such as cornstalk.Wast rural area is derived from, is located in advance by crushing progress hydro-thermal after natural drying
Reason.
2) additive
Wood tar or biodiesel residue
II shaping pretreatments
For biomass material by crushing, powder particle diameter is less than 6mm, and the biomass after crushing is with deionized water according to 1：10
Ratio is added in reaction kettle, and hydro-thermal carbonization reaction is carried out under argon gas addition, and reaction temperature is 160~400 DEG C, reaction pressure
Power is 5Mpa, and the reaction time is 30 minutes~720 minutes, obtains charing material mixed liquor, and carries out separation of solid and liquid to it, will be obtained
After the solid-state powdered carbon obtained is dried at 105 DEG C, crushed；Then it is made to be mixed with wood tar or biodiesel residue
Close, and add and account for the moisture of biomass and additive gross mass 12%~20% and be sufficiently stirred that (adding moisture in stirring can
Binding agent is preferably contacted with biomass in further enhancing additive, so as to play the maximum bonded effect of binding agent).Addition
Agent adding proportion is mass percent 1~10%.
III is molded
Molding mode is molded for cold conditions, and forming temperature is 30 DEG C (can certainly be 10~40 DEG C of room temperatures), shaping pressure
For power in 30~60Mpa, extrusion process facilities and equipments are ring moulds forming machine, and shaping biological material can be made into column type, block
Type etc., column type shaped article diameter are respectively Φ 6mm~Φ 33mm.
Dry after placing up to solid molding fuel.
IV interpretations of result
Biomass solid fuel prepared by the hydro-thermal based on wood tar and biodiesel residue-shaping process integration not only machine
Tool intensity is high, and calorific value is high, and shaping energy consumption is low, but also has higher hydrophobicity.Specific targets are as shown in table 1 below：
1 biomass molding fuel quality characteristic of table
Above-described embodiment is first to carry out drying to solid product to add water, if mainly considering biomass material type not
Together, solid-state hydro-thermal carbonizing production its moisture content directly obtained may also be different；In order to ensure solid product butt in mixture,
Additive and the mass percent of moisture three, first can dry solid product completely, then add water thereto, strictly to control
The component of mixture processed.
Biological substance shaped granule in the present invention can be cylindrical, and the diameter of cylinder is no more than 20mm；Biomass
Forming blocks can also be cylindrical, and the diameter of cylinder is not less than 20mm.
Biodiesel residue in the present invention, can use the corresponding biodiesel residue of any one prior art.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, all any modification, equivalent and improvement made within the spirit and principles of the invention etc., should all include
Within protection scope of the present invention.
Claims (10)
1. one kind is based on additive agent modified biomass by hydro-thermal-formation solid fuel process, it is characterised in that including following step
Suddenly：
(1) both biomass material and water after will be broken be according to 1：It is added to after the mass ratio mixing of (3~20) in reaction kettle,
Then hydro-thermal carbonization reaction is carried out under the atmosphere of inert gas and obtains hydro-thermal charing mix products；The hydro-thermal carbonization reaction
Reaction temperature is 160~400 DEG C, and reaction pressure is 2~5Mpa, and the reaction time is 30 minutes~720 minutes；
(2) hydro-thermal charing mix products that the step (1) obtains are subjected to separation of solid and liquid and obtain solid product, it is then right
The solid product carries out break process, then adds additive thereto and is uniformly mixed to obtain mixture；
(3) mixture that is obtained to the step (2) carries out forming processes, obtain biological substance shaped granule or biomass into
Type block, biomass molding fuel is obtained after dry.
2. being based on additive agent modified biomass by hydro-thermal-formation solid fuel process as claimed in claim 1, its feature exists
In in the step (2), the additive is one or both of wood tar and biodiesel residue；The mixture
In, the quality of the additive is the 1%~10% of both solid product butt and the additive quality sum.
3. being based on additive agent modified biomass by hydro-thermal-formation solid fuel process as claimed in claim 1, its feature exists
In the solid product in the step (2) is also by adding water and/or drying process so that moisture in the mixture
Mass percent is the 12%~20% of mixture entirety.
4. being based on additive agent modified biomass by hydro-thermal-formation solid fuel process as claimed in claim 1, its feature exists
In in the step (3), the forming temperature of the forming processes is 10~40 DEG C, and briquetting pressure is in 30~60Mpa；Preferably,
The forming processes are extrusion forming processing, particular by flat die forming machine, ring moulds forming machine, piston impact briquetting machine or spiral shell
Revolve a kind of progress in extrusion type forming machine.
5. being based on additive agent modified biomass by hydro-thermal-formation solid fuel process as claimed in claim 1, its feature exists
In in the step (2), described being combined by stir process progress, mixing time is 0.5~1h.
6. being based on additive agent modified biomass by hydro-thermal-formation solid fuel process as claimed in claim 1, its feature exists
In, in the step (1), it is described it is broken after biomass material its grain diameter be no more than 6mm.
7. being based on additive agent modified biomass by hydro-thermal-formation solid fuel process as claimed in claim 1, its feature exists
In in the step (1), the biomass material is agriculture and forestry organic waste material, is preferably agricultural stalk.
8. being based on additive agent modified biomass by hydro-thermal-formation solid fuel process as claimed in claim 1, its feature exists
In in the step (2), after carrying out the break process to solid product, its grain diameter of the solid product is no more than
0.5mm。
9. being based on additive agent modified biomass by hydro-thermal-formation solid fuel process as claimed in claim 1, its feature exists
In in the step (3), the drying is natural drying.
10. being based on additive agent modified biomass by hydro-thermal-formation solid fuel process as claimed in claim 1, its feature exists
The biomass molding fuel its moisture content obtained in, the step (3) is not higher than 15wt%.
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| CN201711159651.5A CN107987911A (en) | 2017-11-20 | 2017-11-20 | One kind is based on additive agent modified biomass by hydro-thermal-formation solid fuel process |
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| CN201711159651.5A CN107987911A (en) | 2017-11-20 | 2017-11-20 | One kind is based on additive agent modified biomass by hydro-thermal-formation solid fuel process |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110218600A (en) * | 2019-05-21 | 2019-09-10 | 武汉理工大学 | A kind of ground sludge base compound refuse derived fuel and preparation method thereof |
| CN110257575A (en) * | 2019-06-27 | 2019-09-20 | 北京科技大学 | It is a kind of that technique of the carbide for pulverized coal injection is prepared based on hydro-thermal reaction processing agriculture and forestry organic waste material |
| CN110452754A (en) * | 2019-07-15 | 2019-11-15 | 华中科技大学 | A method of utilizing biomass char emission reduction burning particles object |
| CN111471502A (en) * | 2020-04-08 | 2020-07-31 | 石河子市国力源环保制浆有限公司 | Clean high-value utilization method of straw resources |
| CN111704947A (en) * | 2020-05-26 | 2020-09-25 | 安徽科技学院 | Preparation method and device of hydrothermal carbon fuel rod |
| CN112251268A (en) * | 2020-10-22 | 2021-01-22 | 安徽环态生物能源科技开发有限公司 | Composite biomass particles and production method thereof |
| CN113817521A (en) * | 2021-09-06 | 2021-12-21 | 宝山钢铁股份有限公司 | Preparation method of biomass charcoal composite fuel for blast furnace injection |
| CN114015463A (en) * | 2021-09-27 | 2022-02-08 | 山西省交通科技研发有限公司 | High-value utilization of wood-based biomass and application of wood-based biomass in preparation of biological asphalt |
| CN115007063A (en) * | 2022-06-20 | 2022-09-06 | 无锡市检验检测认证研究院 | Biomass fuel preparation system and technology |
| CN115228435A (en) * | 2022-07-29 | 2022-10-25 | 山东省科学院能源研究所 | Method for circularly and continuously preparing and regenerating activated carbon adsorbent |
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| CN104726159A (en) * | 2015-03-19 | 2015-06-24 | 南京理工大学 | Preparation method of composite modified biomass solid briquette fuel |
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| CN104726159A (en) * | 2015-03-19 | 2015-06-24 | 南京理工大学 | Preparation method of composite modified biomass solid briquette fuel |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110218600A (en) * | 2019-05-21 | 2019-09-10 | 武汉理工大学 | A kind of ground sludge base compound refuse derived fuel and preparation method thereof |
| CN110257575A (en) * | 2019-06-27 | 2019-09-20 | 北京科技大学 | It is a kind of that technique of the carbide for pulverized coal injection is prepared based on hydro-thermal reaction processing agriculture and forestry organic waste material |
| CN110257575B (en) * | 2019-06-27 | 2020-08-04 | 北京科技大学 | Process for preparing carbide for blast furnace coal injection by treating agricultural and forestry waste based on hydrothermal reaction |
| CN110452754A (en) * | 2019-07-15 | 2019-11-15 | 华中科技大学 | A method of utilizing biomass char emission reduction burning particles object |
| CN111471502A (en) * | 2020-04-08 | 2020-07-31 | 石河子市国力源环保制浆有限公司 | Clean high-value utilization method of straw resources |
| CN111704947A (en) * | 2020-05-26 | 2020-09-25 | 安徽科技学院 | Preparation method and device of hydrothermal carbon fuel rod |
| CN112251268A (en) * | 2020-10-22 | 2021-01-22 | 安徽环态生物能源科技开发有限公司 | Composite biomass particles and production method thereof |
| CN113817521A (en) * | 2021-09-06 | 2021-12-21 | 宝山钢铁股份有限公司 | Preparation method of biomass charcoal composite fuel for blast furnace injection |
| CN114015463A (en) * | 2021-09-27 | 2022-02-08 | 山西省交通科技研发有限公司 | High-value utilization of wood-based biomass and application of wood-based biomass in preparation of biological asphalt |
| CN114015463B (en) * | 2021-09-27 | 2024-03-22 | 山西省交通科技研发有限公司 | High-value utilization of wood-based biomass and application of wood-based biomass in preparation of biological asphalt |
| CN115007063A (en) * | 2022-06-20 | 2022-09-06 | 无锡市检验检测认证研究院 | Biomass fuel preparation system and technology |
| CN115228435A (en) * | 2022-07-29 | 2022-10-25 | 山东省科学院能源研究所 | Method for circularly and continuously preparing and regenerating activated carbon adsorbent |
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Application publication date: 20180504 |