CN105950251A - Garden rubbish utilization method based on hydrothermal carbonization and solid biomass fuel - Google Patents
Garden rubbish utilization method based on hydrothermal carbonization and solid biomass fuel Download PDFInfo
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- CN105950251A CN105950251A CN201610316913.3A CN201610316913A CN105950251A CN 105950251 A CN105950251 A CN 105950251A CN 201610316913 A CN201610316913 A CN 201610316913A CN 105950251 A CN105950251 A CN 105950251A
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- garden garbage
- hydrothermal carbonization
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- garden
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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
-
- 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
- C10L5/442—Wood or forestry waste
-
- 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
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/14—Injection, e.g. in a reactor or a fuel stream during fuel production
- C10L2290/146—Injection, e.g. in a reactor or a fuel stream during fuel production of water
-
- 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
Abstract
The invention discloses a garden rubbish utilization method based on hydrothermal carbonization and solid biomass fuel. Through hydrothermal treatment of garden rubbish, solid products (hydrothermal biochar powder) and liquid byproducts (with light oil as a main ingredient) are utilized respectively, wherein the solid products are conveniently transported and stored for a long distance because of high heat value, good burning performance and low water content and then are mixed with crushed and dried garden rubbish in the proportion being 7:3, and the solid formed biomass fuel is prepared after compacting. The liquid byproducts are subjected to methylene dichloride extraction and rotary evaporation, and light oil is obtained. Both the solid products and the liquid byproducts of the garden rubbish can be used, so that the utilization efficiency of the garden rubbish is improved, resource waste is avoided, secondary pollution is small, the whole technological process is simple, the reaction conditions are relatively mild, the operation cost is low, and the solid biomass fuel has certain social meaning and higher economic value.
Description
Technical field
The present invention relates to garden garbage reclaim, particularly relate to a kind of garden garbage based on hydrothermal carbonization and utilize
Method and solid biomass fuel.
Background technology
So-called garden garbage (Garden Waste), also known as green rubbish, is primarily referred to as ornamental plant and naturally withers and falls
Or manually prune produced deadwood, fallen leaves, grass cuttings, fallen flowers, trees and shrub beta pruning and other plants
Residuum etc..These afforestation garbages are because being different from daily life containing abundant Organic substance and nutrient
The rubbish such as alive, medical, commercial production;Therefore the recycling of afforestation waste material, in any country
The most become the significant concern point of the great ecological value and economic worth.
Along with the quickening of Urbanization in China, afforestation is owing to improving city environmental quality, alleviation
Urban heat land effect, maintains the special role in terms of balance of city ecosystem to be increasingly subject to the attention of people,
Constantly develop rapidly.The thing followed, garden plant waste such as dry branches and fallen leaves, branch pruning thing,
The amount of turf-mown thing, weeds, seed etc. is increasing, and garden plant waste becomes the urban life that continues
Another big city garbage after rubbish.As a example by certain city of China, often it is only street tree trimming and produces branch
Quality be exactly the most considerable, add park, citywide, greenery patches, residential area and unit green area, often
The garden plant waste that year produces is countless, the most generally dry branches and fallen leaves is considered as municipal solid waste
Thing, basic or employing landfill and the mode burned, traditional waste incineration or filling type process greening and give up
The disposal options of gurry is incompatible with the Ecological landscape target building saving friendly, and this not only makes
The pollution having become environment also brings the waste of resource, and land occupation resource, also can increase garbage disposal
This.And if it is carried out recycling, then can realize house refuse discharge decrement, save precious
Land resource, improvement soil and the target of ecology.The recycling of current domestic garden garbage the most just starts
Starting, the reasonable Beijing done the most in this respect, the most also it is only capable of processing the gardens of over one hundred ten thousand tons
Rubbish, the most only accounts for garden garbage 10%.Other a lot of cities relatively, especially two, three line cities,
The recycling of garden garbage remains blank.Owing to garden garbage contains the branch of plant, leaves, grass cuttings
Deng, therefore its composition is more complicated;In general, in garden garbage containing moisture, noncombustible matter and
Alkali metal;Garden garbage is directly burned and also can be produced volume of smoke, produces atmospheric pollution.Therefore to gardens
Rubbish carries out the most effective process, is necessary.In recent years, hydrothermal carbonization is simple as one
, biomass castoff continuable, effective (such as lignocellulose, Sargassum, peel etc.) efficient
Preconditioning technique, have received concern greatly.
Summary of the invention
It is an object of the invention to overcome the shortcoming and defect of above-mentioned prior art, it is provided that a kind of based on hydro-thermal
The garden garbage Application way of carbonization and solid biomass fuel.Hydrothermal carbonization is used for processing garden garbage,
The low-calorie difficult point of garden garbage high-moisture can be solved, and the liquid having certain value can be obtained
Body by-product;Thus realize garden garbage high-efficiency low-pollution recovery energy.Hydrothermal carbonization processes gardens rubbish
The research of rubbish has no relevant report, and therefore the present invention proposes garden garbage integrated treatment based on hydrothermal carbonization
Method.
The present invention is achieved through the following technical solutions:
A kind of garden garbage resource utilization method based on hydrothermal carbonization, comprises the steps:
Step (1);The garden garbage screening machine collected simply is sieved, removes finger stone etc.
Aphlogistic material;Carried out being ground into little granule garden garbage more standby;
Step (2);Little gardens grain rubbish is mixed with water, reacts at hydrothermal carbonization after stirring
Device carries out hydrothermal carbonization process;
Step (3);Hydrothermal carbonization process terminates by industrial filter paper filtering, the product obtained is carried out solid-liquid
Separate;After solid-liquid separation, solid product is hydro-thermal biological carbon, and liquid by-product extracts through dichloromethane
To weak yellow liquid;
Step (4);Weak yellow liquid separates in a rotary evaporator, obtains light oil, and dichloro
Methane reclaims;
Step (5);Obtain solid product heated-air circulation oven and obtain hydro-thermal biological carbon granule, then with process
The granule garden garbage being dried blends according to the ratio that mass ratio is 7:3, compacting, obtains circular cylindrical solid
Biomass fuel.
Branch that above-mentioned steps (1) described garden garbage drops during referring to manually prune, trunk, tree
The branch and leaf etc. dropped in skin, grass cuttings etc., and plant Natural growth process.
Particle diameter is less than 2mm after pulverizing for above-mentioned steps (1) described garden garbage, and pulverizer rotating speed is every point
1500 turns of clock.
A gardens grain rubbish after above-mentioned steps (2) is pulverized with every 50g mixes with 1L water, adds height
Reacting in temperature high-pressure reactor, the forward direction reactor of reaction is passed through nitrogen, and be magnetic in reactor rotor,
And stir mixed liquor with the rotating speed of 500rpm;Response time 1h, reaction temperature controls at 210 DEG C-240 DEG C,
Reaction pressure is 3-4Mpa.
In above-mentioned steps (3), liquid by-product is added with volume ratio 1:1 by dichloromethane, and solution divides
Layer, then releases the weak yellow liquid layer of dichloromethane extraction, discards water layer with solid-liquid separator.
Above-mentioned steps (4) is steamed carrying out rotation at weak yellow liquid in a rotary evaporator 45 DEG C, gets rid of water
Divide and dichloromethane.
In above-mentioned steps (5) hydro-thermal biological carbon particle drying and dry after remove moisture content through remove impurity, filtration
After again mix with granule garden garbage, and the operating temperature of heated-air circulation air box is 120 DEG C, adds
Heat time 1h.
Through dried solid product with through the granule gardens rubbish pulverized and be dried in above-mentioned steps (5)
Rubbish blends through row according to the ratio of 3:7, is pressed into a length of 60mm, diameter 15mm, volume density big
It is about 600kg/m3, calorific value is about the circular cylindrical solid biomass fuel of 23400J/g.
A kind of solid biomass fuel, by described garden garbage resource utilization method based on hydrothermal carbonization
Obtain.Including the circular cylindrical solid biomass suppressed by hydro-thermal biological carbon granule and granule garden garbage
Fuel;The ratio of this hydro-thermal biological carbon granule and granule garden garbage is 3:7;Circular cylindrical solid biomass
The a length of 60mm of fuel, diameter 15mm, volume density are about 600kg/m3。
The present invention, relative to prior art, has such advantages as and effect:
1, relative to directly directly burning garden garbage, hydrothermal carbonization can utilize to a greater extent
Garden garbage, solid product and liquid by-product may be by, and improve the level of resources utilization and avoid
The wasting of resources, and secondary pollution is little, and pathogen microorganism is eliminated completely.
2, garden garbage solid product after hydrothermal carbonization, the moisture contained reduces and water absorption
Reduce, it is simple to long-term preservation and long-distance transport.
3, the solid product calorific value of hydrothermal carbonization is high, has good burning performance, be dried, pulverize after gardens rubbish
Rubbish blends according to certain mass ratio can make solid forming biomass fuel, and garden garbage is not required to
To carry out processed in advance.
4, water ionic product under super/undercritical conditions increases, and diffusion coefficient is the biggest, makes garden garbage
Susceptible to hydrolysis.Water is also at liquid phase and the dissolubility that can strengthen organic compound as non-polar solven.
5, either water during dichloromethane or hydrothermal carbonization, can recycle, it is to avoid
The waste of resource, whole flow process is simple, reaction condition is relatively mild, operating cost is low, has one
Determine social meaning and higher economic worth.
Accompanying drawing explanation
Fig. 1 is present invention process flow chart.
Detailed description of the invention
Below in conjunction with Fig. 1 and embodiment, the present invention is more specifically described in detail.
Embodiment 1:
(1) by quality 50g, the garden garbage of moisture content 25wt%, the most simply sieve, separate
Go out aphlogistic materials such as finger stone.Again branch, bark etc. are carried out being ground into little granule rubbish, with
The mixing of 1L water adds hydrothermal reactor, and the forward direction hydrothermal reactor of reaction is passed through nitrogen, in reaction temperature
240 DEG C, process under conditions of time 30min, reaction pressure about 4Mpa and can obtain hydrothermal carbonization
Product.
(2) carrying out product filtering separating, liquid by-product main component is light oil, and solid product is
Hydro-thermal biological carbon, addition dichloromethane to product liquid, release dichloromethane extraction with solid-liquid separator
Weak yellow liquid layer, and under 45 DEG C of operating modes, isolating light oil by rotary evaporator, and to dichloro
Methane reclaims, then solid product is carried out drying can obtain 25.5g, higher calorific value be about
24000J/g, moisture content are about the hydro-thermal biological carbon of 5.16%.
(3) garden garbage and hydro-thermal biological carbon granule through pulverizing and be dried are 3:7 according to mass ratio
Ratio carry out blending, be compacted make calorific value and be about 22300J/g biomass solid fuel.
Embodiment 2:
(1) by quality 50g, the garden garbage of moisture content 25wt%, the most simply sieve, separate
Go out aphlogistic materials such as finger stone.Again branch, bark etc. are carried out being ground into little granule rubbish, with
The mixing of 1L water adds hydrothermal reactor, and the forward direction hydrothermal reactor of reaction is passed through nitrogen, in reaction temperature
240 DEG C, process under conditions of time 60min, reaction pressure about 4Mpa and can obtain hydrothermal carbonization
Product.
(2) carrying out product filtering separating, liquid by-product main component is light oil, and solid product is
Hydro-thermal biological carbon, adds dichloromethane at liquid by-product, releases dichloromethane extraction with solid-liquid separator
Weak yellow liquid layer, and under 45 DEG C of operating modes, isolating light oil by rotary evaporator, and to two
Chloromethanes reclaims, then solid product is carried out drying can obtain 23.18g, higher calorific value be about
25600J/g, moisture content are about the hydro-thermal biological carbon of 4.66%.
(3) garden garbage and hydro-thermal biological carbon granule through pulverizing and be dried are 3:7 according to mass ratio
Ratio carry out blending, be compacted make calorific value and be about 24000J/g biomass solid fuel.
Embodiment 3
(1) by quality 50g, the garden garbage of moisture content 25wt%, the most simply sieve, separate
Go out aphlogistic materials such as finger stone.Again branch, bark etc. are carried out being ground into little granule rubbish, with
The mixing of 1L water adds hydrothermal reactor, and the forward direction hydrothermal reactor of reaction is passed through nitrogen, in reaction temperature
210 DEG C, process under conditions of time 60min, reaction pressure about 4Mpa and can obtain hydrothermal carbonization
Product.
(2) carrying out product filtering separating, liquid by-product is mainly light oil, and solid product is hydro-thermal
Biological carbon, addition dichloromethane to product liquid, release the yellowish of dichloromethane extraction with solid-liquid separator
Color liquid level, and under 45 DEG C of operating modes, isolating light oil by rotary evaporator, and to dichloromethane
Reclaim, then solid product is carried out that drying can obtain 30.3g, higher calorific value is about 22200J/g,
Moisture content is about the hydro-thermal biological carbon of 6.32%.
(3) garden garbage and hydro-thermal biological carbon granule through pulverizing and be dried are 3:7 according to mass ratio
Ratio carry out blending, be compacted make calorific value and be about 21000J/g biomass solid fuel..
As it has been described above, just can preferably realize the present invention.
Embodiments of the present invention are also not restricted to the described embodiments, and other are any without departing from the present invention's
The change made under spirit and principle, modify, substitute, combine, simplify, all should be putting of equivalence
Change mode, within being included in protection scope of the present invention.
Claims (10)
1. a garden garbage resource utilization method based on hydrothermal carbonization, it is characterised in that include as follows
Step:
Step (1);The garden garbage screening machine collected is sieved, removes aphlogistic material;
Carried out being ground into granule garden garbage more standby;
Step (2);A gardens grain rubbish is mixed with water, at hydrothermal carbonization reactor after stirring
In carry out hydrothermal carbonization process;
Step (3);Hydrothermal carbonization process terminates by industrial filter paper filtering, the product obtained is carried out solid-liquid
Separate;After solid-liquid separation, solid product is hydro-thermal biological carbon, and liquid by-product extracts through dichloromethane
To weak yellow liquid;
Step (4);Weak yellow liquid separates in a rotary evaporator, obtains light oil, and dichloro
Methane reclaims;
Step (5);Obtain solid product heated-air circulation oven and obtain hydro-thermal biological carbon granule, then with process
The granule garden garbage being dried blends according to the ratio that mass ratio is 7:3, compacting, obtains circular cylindrical solid
Biomass fuel.
The most according to claim 1, garden garbage resource utilization method based on hydrothermal carbonization, it is special
Levy and be:
Branch that step (1) described garden garbage drops during referring to manually prune, trunk, bark,
The branch and leaf dropped in grass cuttings, and plant Natural growth process.
The most according to claim 1, garden garbage resource utilization method based on hydrothermal carbonization, it is special
Levy and be: particle diameter is less than 2mm after pulverizing for step (1) described garden garbage, and pulverizer rotating speed is every point
1500 turns of clock.
The most according to claim 1, garden garbage resource utilization method based on hydrothermal carbonization, it is special
Levy and be: the gardens grain rubbish after the every 50g of step (2) pulverizes mixes with 1L water, add height
Reacting in temperature high-pressure reactor, the forward direction reactor of reaction is passed through nitrogen, and be magnetic in reactor rotor,
And stir mixed liquor with the rotating speed of 500rpm;Response time 1h, reaction temperature controls at 210 DEG C-240 DEG C,
Reaction pressure is 3-4Mpa.
The most according to claim 1, garden garbage resource utilization method based on hydrothermal carbonization, it is special
Levy and be: in step (3), liquid by-product is added with volume ratio 1:1 by dichloromethane, and solution divides
Layer, then releases the weak yellow liquid layer of dichloromethane extraction, discards water layer with solid-liquid separator.
The most according to claim 1, garden garbage resource utilization method based on hydrothermal carbonization, it is special
Levy and be: step (4) is steamed carrying out rotation at weak yellow liquid in a rotary evaporator 45 DEG C, gets rid of water
Divide and dichloromethane.
The most according to claim 1, garden garbage resource utilization method based on hydrothermal carbonization, it is special
Levy and be: in step (5) hydro-thermal biological carbon particle drying and dry after remove moisture content through remove impurity, filtration
After again mix with granule garden garbage, and the operating temperature of heated-air circulation air box is 120 DEG C, adds
Heat time 1h.
The most according to claim 1, garden garbage resource utilization method based on hydrothermal carbonization, it is special
Levy and be: through dried solid product with through the granule garden garbage pulverized and be dried in step (5)
Blend through row according to the ratio of 3:7, be pressed into a length of 60mm, diameter 15mm, volume density about
For 600kg/m3, calorific value is about the circular cylindrical solid biomass fuel of 23400J/g.
9. a solid biomass fuel, it is characterised in that use according to any one of claim 1 to 8
Garden garbage resource utilization method based on hydrothermal carbonization obtain, including by hydro-thermal biological carbon granule and
The circular cylindrical solid biomass fuel of grain garden garbage compacting.
Solid biomass fuel the most according to claim 9, it is characterised in that described hydro-thermal is biological
The ratio of carbon granule and granule garden garbage is 3:7;The a length of 60mm of circular cylindrical solid biomass fuel,
Diameter 15mm, volume density are about 600kg/m3。
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Cited By (10)
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CN106635115A (en) * | 2016-12-19 | 2017-05-10 | 北京首创环境投资有限公司 | Method for efficiently and cleanly preparing oil through mixed waste plastic garbage and hydrothermal reaction system |
CN107384499A (en) * | 2017-06-28 | 2017-11-24 | 大连理工大学 | A kind of solid fuel available for coal substitute |
CN107603644A (en) * | 2017-10-11 | 2018-01-19 | 珠海汇东环保科技有限公司 | It is a kind of to couple hydrothermal carbonization and the organic refuse treatment appts and handling process of biochemical reaction principle |
CN107987913A (en) * | 2017-11-23 | 2018-05-04 | 中国热带农业科学院广州实验站 | A kind of processing method of cassava starch dregs |
CN109292894A (en) * | 2018-10-25 | 2019-02-01 | 南京工程学院 | Phenol wastewater combines the method that biomass preparation hydro-thermal coke realizes hydro-thermal coke deliming self-activation |
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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 |
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CN112500899A (en) * | 2020-10-27 | 2021-03-16 | 怀宁县泰华新能源科技有限公司 | Low-corrosion biomass fuel |
CN112774597A (en) * | 2021-02-23 | 2021-05-11 | 轻工业环境保护研究所 | Double-tank circulating hydrothermal reaction device and operation method |
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CN106635115A (en) * | 2016-12-19 | 2017-05-10 | 北京首创环境投资有限公司 | Method for efficiently and cleanly preparing oil through mixed waste plastic garbage and hydrothermal reaction system |
CN107384499A (en) * | 2017-06-28 | 2017-11-24 | 大连理工大学 | A kind of solid fuel available for coal substitute |
CN107603644A (en) * | 2017-10-11 | 2018-01-19 | 珠海汇东环保科技有限公司 | It is a kind of to couple hydrothermal carbonization and the organic refuse treatment appts and handling process of biochemical reaction principle |
CN107987913B (en) * | 2017-11-23 | 2020-07-14 | 中国热带农业科学院广州实验站 | Method for treating cassava starch residues |
CN107987913A (en) * | 2017-11-23 | 2018-05-04 | 中国热带农业科学院广州实验站 | A kind of processing method of cassava starch dregs |
CN109292894A (en) * | 2018-10-25 | 2019-02-01 | 南京工程学院 | Phenol wastewater combines the method that biomass preparation hydro-thermal coke realizes hydro-thermal coke deliming self-activation |
CN109292894B (en) * | 2018-10-25 | 2021-07-27 | 南京工程学院 | Method for preparing hydrothermal coke by combining phenolic wastewater with biomass to realize hydrothermal coke deliming self-activation |
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 |
CN110408452A (en) * | 2019-08-27 | 2019-11-05 | 安徽环态生物能源科技开发有限公司 | A kind of biological particles and production method of high-efficiency cleaning |
CN111011161A (en) * | 2019-12-26 | 2020-04-17 | 郑州大学 | Red mud soil matrix and preparation method thereof |
CN112500899A (en) * | 2020-10-27 | 2021-03-16 | 怀宁县泰华新能源科技有限公司 | Low-corrosion biomass fuel |
CN112774597A (en) * | 2021-02-23 | 2021-05-11 | 轻工业环境保护研究所 | Double-tank circulating hydrothermal reaction device and operation method |
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Application publication date: 20160921 |