CN113233456A - Method for preparing activated carbon and liquid fertilizer through biomass pyrolysis based on combined action of biomass vinegar and biomass oil - Google Patents
Method for preparing activated carbon and liquid fertilizer through biomass pyrolysis based on combined action of biomass vinegar and biomass oil Download PDFInfo
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- 239000002028 Biomass Substances 0.000 title claims abstract description 114
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 96
- 239000007788 liquid Substances 0.000 title claims abstract description 45
- 238000000197 pyrolysis Methods 0.000 title claims abstract description 43
- 239000000052 vinegar Substances 0.000 title claims abstract description 37
- 235000021419 vinegar Nutrition 0.000 title claims abstract description 37
- 239000003337 fertilizer Substances 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000009471 action Effects 0.000 title claims abstract description 13
- 230000004913 activation Effects 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 239000007790 solid phase Substances 0.000 claims abstract description 12
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 10
- 238000001914 filtration Methods 0.000 claims abstract description 10
- 239000007791 liquid phase Substances 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 238000009210 therapy by ultrasound Methods 0.000 claims abstract description 4
- 239000003610 charcoal Substances 0.000 claims description 15
- 239000007789 gas Substances 0.000 claims description 14
- 239000002023 wood Substances 0.000 claims description 11
- 239000002243 precursor Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000007833 carbon precursor Substances 0.000 claims description 3
- 239000002737 fuel gas Substances 0.000 claims description 3
- 239000012071 phase Substances 0.000 abstract description 5
- 238000002156 mixing Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 19
- 238000004458 analytical method Methods 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 239000002994 raw material Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 4
- 229910052740 iodine Inorganic materials 0.000 description 4
- 239000011630 iodine Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 229910052783 alkali metal Inorganic materials 0.000 description 3
- 150000001340 alkali metals Chemical class 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000000921 elemental analysis Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000012075 bio-oil Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 150000007522 mineralic acids Chemical class 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 230000003804 effect on potassium Effects 0.000 description 1
- 230000000674 effect on sodium Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000002296 pyrolytic carbon Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
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Classifications
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- 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
- C01B32/312—Preparation
- C01B32/318—Preparation characterised by the starting materials
- C01B32/324—Preparation characterised by the starting materials from waste materials, e.g. tyres or spent sulfite pulp liquor
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/20—Liquid fertilisers
-
- 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
-
- 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
- C10B57/04—Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition
-
- 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
- C10B57/04—Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition
- C10B57/045—Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition containing mineral oils, bitumen, tar or the like or mixtures thereof
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
- Y02P20/145—Feedstock the feedstock being materials of biological origin
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Fertilizers (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention relates to a method for preparing activated carbon and liquid fertilizer by biomass pyrolysis based on combined action of biomass vinegar and biomass oil, which comprises the steps of stirring and mixing crushed biomass and vinegar obtained by pyrolysis, filtering the mixture by a filter to obtain a liquid phase, sending the liquid phase into a chelating tank, and adding N/P/K for chelating to obtain the liquid fertilizer; and (3) filtering to obtain solid-phase biomass, feeding the solid-phase biomass into a closed heating container, heating to 270-280 ℃, keeping the temperature constant for 1-1.5, feeding the solid-phase biomass into a pyrolysis furnace for pyrolysis, condensing and centrifugally separating out vinegar liquid and biomass oil from a gas phase obtained after pyrolysis, feeding the gas phase for pyrolysis to heat, performing ultrasonic treatment on the obtained biochar and biomass oil in a certain ratio, and feeding the obtained biochar and biomass oil into an activation furnace for activation to obtain high-quality and high-yield activated carbon. The method solves the problems of high cost, pollution, low quality and low yield of the activated carbon prepared from biomass carbon in the traditional biomass upgrading method through the combined action of vinegar liquid and biomass oil generated by pyrolysis, and finally obtains the high-quality activated carbon and liquid fertilizer.
Description
Technical Field
The invention relates to a method for preparing activated carbon and liquid fertilizer by biomass pyrolysis based on combined action of biomass vinegar and biomass oil, and belongs to the field of biomass energy.
Background
The quality of conventional pyrolysis products of biomass is not high, and a pyrolysis poly-generation mechanism aiming at the high quality of the products becomes a focus of attention of researchers. The coupling mechanism among the raw material quality improvement treatment, the process regulation and the product quality in the thermal decomposition chain is determined, and the method is an important way for realizing the high quality of products.
Biomass has the disadvantages of strong hydrophilicity, high grinding difficulty, high water content and oxygen content, low energy density, and the like, and therefore appropriate modification pretreatment is often required before biomass utilization. Both international famous experts in biomass energy, a.v. bridgwater and International Energy Agency (IEA), indicate that high oxygen content of biomass is a direct cause of high content of oxygenated chemical components in bio-oil, and that quality improvement of raw materials plays a crucial role in subsequent pyrolysis. In recent years, attention has been paid to quality-improving treatment techniques for improving biomass raw materials and further improving the quality of pyrolysis products.
There are roughly two ways of raw material upgrading, water washing deliming and acid washing deliming. The washing liquid after washing and deashing contains a large amount of alkaline earth metals, is discharged to pollute the environment, and can be recovered after being purified. Acid washing and deashing research shows that both inorganic acid (such as hydrochloric acid) and organic acid (such as acetic acid) can effectively remove ash and metal elements in biomass so as to improve the quality of bio-oil, but the cost is high and pollution is also caused when the inorganic acid and the organic acid are used for treating the biomass.
The high-value utilization of biomass charcoal, a main product of biomass pyrolysis, is directly related to the popularization and application of a biomass pyrolysis technology. The preparation of activated carbon with high added value from biomass charcoal obtained after biomass pyrolysis is a main direction. The traditional biomass charcoal mainly has two problems: the biomass charcoal has low quality and the active carbon has low yield and high cost in the biomass process.
Therefore, there is an urgent need to develop a technology that can solve the above problems of low quality and utilization of by-products through process control without adding additional substances and being environmentally friendly.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a novel low-cost and systematic method for preparing activated carbon and liquid fertilizer by biomass pyrolysis based on the combined action of biomass vinegar and biomass oil, and the method can obtain high-quality activated carbon and liquid fertilizer.
In order to achieve the purpose, the invention adopts the technical scheme that: a method for preparing activated carbon and liquid fertilizer by biomass pyrolysis based on combined action of biomass vinegar and biomass oil comprises the following steps:
(1) biomass pretreatment: feeding biomass and vinegar liquid crushed to 20 meshes into a reactor, wherein the volume ratio of the biomass to the vinegar liquid is 1:1-3, heating to 50-60 ℃, and stirring for 30 min;
(2) filtration-liquid phase: feeding the mixture obtained in the step (1) into a filter for filtering, feeding the obtained liquid phase into a chelating tank, heating to 40 ℃, adding water to adjust the pH value to 6-6.5, and adding N/P/K for chelating to obtain a liquid fertilizer;
(3) filtration-solid phase: sending the solid phase obtained by filtering by the filter, namely the processed biomass into a closed heater, heating to 270 ℃ and 280 ℃ at a speed of 20 ℃/min, and keeping the constant temperature for 1-1.5 h;
(4) preparing vinegar liquid and an active carbon precursor: pyrolyzing the biomass obtained in the step (3) at 550-600 ℃ to obtain gas and biomass charcoal, condensing and centrifugally separating the gas to obtain vinegar liquid, non-condensable gas and biomass oil, wherein the non-condensable gas can be combusted by fuel gas to provide heat required by pyrolysis, and the weight ratio of the biomass charcoal to the biomass oil is 4-6: 1, feeding the mixture into an ultrasonic tank, and carrying out ultrasonic treatment and stirring for 1 hour to obtain an activated carbon precursor;
(5) activation of carbon: and (3) feeding the activated carbon precursor into a rotary activation furnace for activation to obtain the activated carbon.
Wherein, the biomass in the step (1) is wood chips and shells, and the water content is less than or equal to 40 percent.
Wherein the vinegar liquid in the step (1) is the vinegar liquid obtained by pyrolysis in the step (4).
The invention has the beneficial effects that:
(1) the vinegar liquid obtained by self pyrolysis and condensed and separated in gas phase is stirred and mixed with biomass, ash content such as alkali metal is transferred into the vinegar liquid, and the vinegar liquid containing alkali metal is used for preparing liquid fertilizer, so that the ash content such as alkali metal is recycled, the vinegar liquid is recycled, and simultaneously the biomass is upgraded.
(2) The biomass oil produced by self pyrolysis is coupled with the biomass charcoal, so that the oxidation resistance and the volatile content of the biomass charcoal are increased, the yield of the biomass charcoal is improved, the ash content is reduced, and the quality and the production cost of the activated charcoal are improved.
(3) The method of the system not only can obtain the liquid fertilizer, but also can obtain high-quality activated carbon, thereby achieving two purposes.
Drawings
FIG. 1 is a flow chart of a method for preparing activated carbon and liquid fertilizer by biomass pyrolysis.
Detailed Description
A method for preparing activated carbon and liquid fertilizer by biomass pyrolysis based on combined action of biomass vinegar and biomass oil comprises the following steps:
(1) biomass pretreatment: crushing wood chips with the water content of less than or equal to 40% to 20 meshes, feeding the biomass vinegar liquid obtained in the step (4) into a reactor, wherein the volume ratio of the biomass to the vinegar liquid is 1:2, heating to 50-60 ℃, and stirring for 30 min;
(2) filtration-liquid phase: feeding the mixture obtained in the step (1) into a filter for filtering, feeding the obtained liquid phase into a chelating tank, heating to 40 ℃, adding water to adjust the pH value to 6-6.5, adding N/P/K according to the required proportion of the used plants, heating to 60 ℃, and stirring for chelating to obtain a liquid fertilizer;
(3) filtration-solid phase: sending the solid phase obtained by filtering by the filter, namely the processed biomass into a closed heater, heating to 270 ℃ and 280 ℃ at a speed of 20 ℃/min, and keeping the constant temperature for 1-1.5 h;
(4) preparing vinegar liquid and an active carbon precursor: and (3) feeding the biomass obtained in the step (3) into a pyrolysis furnace, pyrolyzing at 550-600 ℃ to obtain gas and biomass charcoal, condensing and centrifugally separating the gas to obtain vinegar liquid and biomass oil, combusting the non-condensable gas, namely fuel gas, for providing heat required by pyrolysis, wherein the biomass charcoal and the biomass oil are mixed according to the weight ratio of 5: 1, feeding the mixture into an ultrasonic tank, and ultrasonically stirring for 1 hour to obtain an activated carbon precursor.
(5) Activation of carbon: and (3) feeding the activated carbon precursor into a rotary activation furnace for activation to obtain the activated carbon.
TABLE 1 physical and chemical analysis of wood chips and wood chips entering pyrolysis furnace
The results of industrial analysis, elemental analysis, and calorific value of the raw material chips in step (1) and the biomass and other samples before entering the pyrolysis furnace obtained in step (3) are shown in table 1, and it can be seen from table 1 that the ash content after upgrading is reduced from 5.56% to 3.91%. This means that the present solution allows to significantly reduce the ash content of the sample. Compared with the reduction of the volatile content of the raw materials, the content of the fixed carbon is greatly improved. Meanwhile, the content of carbon element is greatly improved, the content of oxygen element is greatly reduced, the molar ratio of H/O and O/C is also reduced, and the heat value of the sample is obviously increased.
TABLE 2 analysis of the metal elements in the wood chips and wood chips before entering the pyrolysis furnace
| Sample (I) | K(μg/g) | Ca(μg/g) | Mg(μg/g) | Fe(μg/g) | Al(μg/g) | Na(μg/g) |
| Not upgraded | 9210 | 8465 | 2678 | 1192 | 920 | 737 |
| Before entering into the pyrolysis furnace | 1350 | 3950 | 962 | 485 | 698 | 68 |
The contents of the metallic elements in the samples are shown in Table 2. After the quality improvement of the invention, the metal content in the wood chips is reduced to different degrees, wherein the removal effect on K, Na and Mg elements is more obvious, especially K, Na, and the removal rate reaches 90-95%. Has certain removal effect on other metal elements, for example, the removal rate of Ca and Fe reaches more than 50 percent. This shows that the invention has better effect of removing the metal elements in the wood chips.
The coupling result of the biomass oil and the wood chip pyrolytic carbon is as follows: 1kg of biomass carbon and 0.2kg of biomass oil are coupled to obtain an activated carbon precursor, and the activated carbon precursor is sent into an activation furnace to be activated to obtain 0.6kg of activated carbon. The element analysis, yield and iodine value analysis of the activated carbon are carried out, the yield of the activated carbon is 60 percent, and the iodine value is 1150 mg/g; activated carbon elemental analysis: [c] 91.45%, [ H ] 1.66%, [ N ] 0.24%, [ O ] 4.69%, and ash content 1.96%.
Results for wood chip charcoal alone, not coupled with biomass oil, to produce activated charcoal: 1kg of biomass charcoal is sent into an activation furnace to be activated to obtain 0.52kg of activated carbon. The element analysis, yield and iodine value analysis of the activated carbon are carried out, the yield of the activated carbon is 52 percent, and the iodine value is 988 mg/g; activated carbon elemental analysis: [c] 88.35%, H1.45%, N0.27%, O5.73%, and ash 1.96%.
The results show that the coupling of the biomass oil improves the oxidation resistance of the biomass carbon and improves the quality and yield of the activated carbon.
The invention relates to a method for preparing activated carbon and liquid fertilizer by biomass pyrolysis based on combined action of biomass vinegar and biomass oil, which comprises the steps of stirring and mixing crushed biomass and vinegar obtained by pyrolysis, filtering the mixture by a filter to obtain a liquid phase, feeding the liquid phase into a chelating tank, and adding N/P/K for chelating according to the required proportion of plants to obtain the liquid fertilizer; and (3) filtering to obtain solid-phase biomass, feeding the solid-phase biomass into a closed heating container, heating to 270-280 ℃, keeping the temperature constant for 1-1.5, feeding the solid-phase biomass into a pyrolysis furnace for pyrolysis, condensing and centrifugally separating out vinegar liquid and biomass oil from a gas phase obtained after pyrolysis, feeding the gas phase for pyrolysis to heat, performing ultrasonic treatment on the obtained biochar and biomass oil in a certain ratio, and feeding the obtained biochar and biomass oil into an activation furnace for activation to obtain high-quality and high-yield activated carbon. The method solves the problems of high cost, pollution, low quality and low yield of the activated carbon prepared from biomass carbon in the traditional biomass upgrading method through the combined action of vinegar liquid and biomass oil generated by pyrolysis, and finally obtains the high-quality activated carbon and liquid fertilizer.
Claims (3)
1. A method for preparing activated carbon and liquid fertilizer by biomass pyrolysis based on combined action of biomass vinegar and biomass oil is characterized by comprising the following steps:
(1) biomass pretreatment: feeding biomass and vinegar liquid crushed to 20 meshes into a reactor, wherein the volume ratio of the biomass to the vinegar liquid is 1:1-3, heating to 50-60 ℃, and stirring for 30 min;
(2) filtration-liquid phase: feeding the mixture obtained in the step (1) into a filter for filtering, feeding the obtained liquid phase into a chelating tank, heating to 40 ℃, adding water to adjust the pH value to 6-6.5, adding N/P/K, heating to 60 ℃, stirring and chelating to obtain a liquid fertilizer;
(3) filtration-solid phase: sending the solid phase obtained by filtering by the filter, namely the processed biomass into a closed heater, heating to 270 ℃ and 280 ℃ at a speed of 20 ℃/min, and keeping the constant temperature for 1-1.5 h;
(4) preparing vinegar liquid and an active carbon precursor: pyrolyzing the biomass obtained in the step (3) at 550-600 ℃ to obtain gas and biomass charcoal, condensing and centrifugally separating the gas to obtain vinegar liquid, non-condensable gas and biomass oil, wherein the non-condensable gas can be combusted by fuel gas to provide heat required by pyrolysis, and the weight ratio of the biomass charcoal to the biomass oil is 4-6: 1, feeding the mixture into an ultrasonic tank, and carrying out ultrasonic treatment and stirring for 1 hour to obtain an activated carbon precursor;
(5) activation of carbon: and (3) feeding the activated carbon precursor into a rotary activation furnace for activation to obtain the activated carbon.
2. The method for preparing activated carbon and liquid fertilizer by biomass pyrolysis based on the combined action of biomass vinegar and biomass oil as claimed in claim 1, is characterized in that: the biomass in the step (1) is wood chips and shells, and the water content is less than or equal to 40 percent.
3. The method for preparing activated carbon and liquid fertilizer by biomass pyrolysis based on the combined action of biomass vinegar and biomass oil in claim 1, wherein the vinegar in the step (1) is the vinegar obtained by pyrolysis in the step (4).
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011041881A1 (en) * | 2009-10-05 | 2011-04-14 | Southern Biomass, Llc | Oil-impregnated torrefied biomass and related uses |
| US20160229697A1 (en) * | 2015-02-05 | 2016-08-11 | Advanced Organic Methods LLC | Activated Carbon Production at Biomass-Fueled Steam/Electric Power Plants |
| CN108033446A (en) * | 2017-12-21 | 2018-05-15 | 四川雷鸣生物环保工程有限公司 | Thermoelectricity charcoal fertilizer activated carbon joint production process using municipal refuse derivatived fuel RDF-5 as raw material |
| CN108314040A (en) * | 2018-02-09 | 2018-07-24 | 南京林业大学 | A kind of method of wood substance grain gasifying electricity generation co-producing active carbon |
| CN108314473A (en) * | 2018-04-10 | 2018-07-24 | 北京三聚绿能科技有限公司 | A kind of method of wood vinegar and biomass coproduction Liquid Fertilizer and high-quality biological matter charcoal |
| CN108410485A (en) * | 2018-04-13 | 2018-08-17 | 北京三聚绿能科技有限公司 | A kind of method of biomass pyrolysis |
-
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- 2021-06-18 CN CN202110681572.0A patent/CN113233456A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011041881A1 (en) * | 2009-10-05 | 2011-04-14 | Southern Biomass, Llc | Oil-impregnated torrefied biomass and related uses |
| US20160229697A1 (en) * | 2015-02-05 | 2016-08-11 | Advanced Organic Methods LLC | Activated Carbon Production at Biomass-Fueled Steam/Electric Power Plants |
| CN108033446A (en) * | 2017-12-21 | 2018-05-15 | 四川雷鸣生物环保工程有限公司 | Thermoelectricity charcoal fertilizer activated carbon joint production process using municipal refuse derivatived fuel RDF-5 as raw material |
| CN108314040A (en) * | 2018-02-09 | 2018-07-24 | 南京林业大学 | A kind of method of wood substance grain gasifying electricity generation co-producing active carbon |
| CN108314473A (en) * | 2018-04-10 | 2018-07-24 | 北京三聚绿能科技有限公司 | A kind of method of wood vinegar and biomass coproduction Liquid Fertilizer and high-quality biological matter charcoal |
| CN108410485A (en) * | 2018-04-13 | 2018-08-17 | 北京三聚绿能科技有限公司 | A kind of method of biomass pyrolysis |
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