CN115725329A - Method for separating biochar from heat carrier - Google Patents
Method for separating biochar from heat carrier Download PDFInfo
- Publication number
- CN115725329A CN115725329A CN202211495485.7A CN202211495485A CN115725329A CN 115725329 A CN115725329 A CN 115725329A CN 202211495485 A CN202211495485 A CN 202211495485A CN 115725329 A CN115725329 A CN 115725329A
- Authority
- CN
- China
- Prior art keywords
- heat carrier
- biochar
- liquid
- recycling
- storage tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 59
- 238000000926 separation method Methods 0.000 claims abstract description 32
- 238000004064 recycling Methods 0.000 claims abstract description 21
- 239000000446 fuel Substances 0.000 claims abstract description 15
- 238000000605 extraction Methods 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 239000006185 dispersion Substances 0.000 claims abstract description 8
- 230000005484 gravity Effects 0.000 claims abstract description 8
- 239000007791 liquid phase Substances 0.000 claims abstract description 5
- 239000012071 phase Substances 0.000 claims abstract description 5
- 239000007790 solid phase Substances 0.000 claims abstract description 4
- 239000002028 Biomass Substances 0.000 claims description 4
- 238000009835 boiling Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 3
- 239000013072 incoming material Substances 0.000 abstract description 3
- 238000005336 cracking Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000003895 organic fertilizer Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004227 thermal cracking Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
A method for separating biochar from a heat carrier comprises the following steps: carrying out first solid-liquid separation on the mixture of the biochar and the heat carrier after cracking in the reaction kettle in a horizontal screw centrifuge with the temperature resistance of 400 ℃; the separated heat carrier returns to the storage tank for recycling, and a small amount of biological liquid fuel contained in the heat carrier is sent to the biological liquid fuel storage tank; the solid-phase biochar containing a trace heat carrier enters a dispersion tank with extract liquid at the lower part by gravity for dispersion, and the extracted heat carrier returns to a storage tank for recycling; sending the mixture of the extract containing the heat carrier and the biochar into a flat centrifuge for second solid-liquid separation, sending the extract containing the heat carrier into a gas-liquid separation tower for gas-liquid separation, condensing and recycling gas phase extract gas to a storage tank for recycling, and returning the liquid phase heat carrier to the storage tank for recycling; the biochar is sent into a lower dryer by gravity to be heated, and a trace amount of extraction liquid contained in the biochar is gasified, condensed and recovered. The invention can directly separate the incoming materials at 300 ℃, does not need cooling and saves energy.
Description
Technical Field
The invention relates to the technical field of biomass liquid fuels, in particular to a method for separating biochar from a heat carrier.
Background
In the traditional separation process of the biochar and the heat carrier, the raw materials are supplied at 300 ℃, the temperature in the separation process is 100 ℃, and the separation can be carried out only by cooling, so that energy is wasted.
Disclosure of Invention
The invention aims to provide a method for separating biochar from a heat carrier, wherein equipment used in the method can resist the temperature of 400 ℃, incoming materials at the temperature of 300 ℃ can be directly separated without cooling, and energy is saved.
A method for separating biochar from a heat carrier, comprising the steps of:
1) Sending a mixture of biochar and a heat carrier after biomass particles are cracked in a reaction kettle by a biological liquid fuel into a horizontal screw centrifuge capable of resisting the temperature of 400 ℃ for first solid-liquid separation by a high-temperature centrifugal pump through a heat-preservation pipeline in a backflow method;
2) In the solid-liquid separation process, the heat carrier is returned to the storage tank for recycling, and a small amount of biological liquid fuel contained in the heat carrier is sent to the biological liquid fuel storage tank;
3) The solid-phase biochar containing a trace heat carrier enters a dispersion tank with an extraction liquid at the lower part by gravity for dispersion, and the heat carrier in the biochar is extracted out and returned to a storage tank for recycling;
4) Sending the mixture of the extract liquid containing the heat carrier and the biochar into a flat centrifuge by a centrifugal pump for secondary solid-liquid separation, and sending the extract liquid containing the heat carrier into a gas-liquid separation tower;
5) Heating a mixture containing an extraction liquid and a heat carrier in gas-liquid separation, increasing the temperature, realizing gas-liquid separation by utilizing different boiling point differences, condensing and recycling gas phase extraction liquid gas at the top of a gas-liquid separation tower to a storage tank for recycling, and returning a liquid phase heat carrier at the bottom of the gas-liquid separation tower to the storage tank for recycling;
6) The biochar is sent into a lower dryer by gravity to be heated, and a trace amount of extraction liquid contained in the biochar is gasified, condensed and recycled through a pipeline;
the invention has the beneficial effects that:
1. the horizontal screw centrifuge can resist the temperature of 400 ℃, can directly separate incoming materials at the temperature of 300 ℃, does not need to be cooled, and saves energy.
2. The invention optimizes the process, and the process effectively solves the separation problem of heat carrier, biological carbon and residual trace amount of cracked biological liquid fuel gas, solid and liquid: the heat carrier can be repeatedly utilized, trace gas-phase biological liquid fuel is condensed into liquid-phase biological liquid fuel for recycling, and the biochar becomes industrial and agricultural basic raw materials such as carbon black, organic fertilizer and the like.
3. The invention solves the problem of comprehensive utilization of various products in the whole process of preparing the biological liquid fuel by thermal cracking of the biological cellulose, saves resources, reduces cost, protects environment and realizes sustainable development of utilization of renewable biological resources.
Detailed Description
A method for separating biochar from a heat carrier, comprising the steps of:
1) Sending a mixture of biochar and a heat carrier after biomass particles are cracked in a reaction kettle by a biological liquid fuel into a horizontal screw centrifuge capable of resisting the temperature of 400 ℃ for first solid-liquid separation by a high-temperature centrifugal pump through a heat-preservation pipeline in a backflow method;
2) In the solid-liquid separation process, the heat carrier is returned to the storage tank for recycling, and a small amount of biological liquid fuel contained in the heat carrier is sent to the biological liquid fuel storage tank;
3) The solid-phase biochar containing a trace heat carrier enters a dispersion tank with an extraction liquid at the lower part by gravity for dispersion, and the heat carrier in the biochar is extracted and returned to a storage tank for recycling;
4) Conveying the mixture of the extract containing the heat carrier and the biochar into a flat centrifuge for second solid-liquid separation by using a centrifugal pump, and feeding the extract containing the heat carrier into a gas-liquid separation tower;
5) Heating a mixture containing an extraction liquid and a heat carrier in a separation tower, realizing gas-liquid separation by utilizing different boiling point differences, condensing and recycling gas phase extraction liquid gas at the top of the gas-liquid separation tower to a storage tank for recycling, and returning a liquid phase heat carrier at the bottom of the gas-liquid separation tower to the storage tank for recycling;
6) The biochar is sent into a lower dryer by gravity to be heated, and a trace amount of extraction liquid contained in the biochar is gasified, condensed and recycled through a pipeline.
Claims (1)
1. A method for separating biochar from a heat carrier is characterized by comprising the following steps: the method comprises the following steps:
1) Sending a mixture of biochar and a heat carrier after biomass particles are cracked in a reaction kettle by a biological liquid fuel into a horizontal screw centrifuge capable of resisting the temperature of 400 ℃ for first solid-liquid separation by a high-temperature centrifugal pump through a heat-preservation pipeline in a backflow method;
2) In the solid-liquid separation process, the heat carrier is returned to the storage tank for recycling, and a small amount of biological liquid fuel contained in the heat carrier is sent to the biological liquid fuel storage tank;
3) The solid-phase biochar containing a trace heat carrier enters a dispersion tank with an extraction liquid at the lower part by gravity for dispersion, and the heat carrier in the biochar is extracted out and returned to a storage tank for recycling;
4) Conveying the mixture of the extract containing the heat carrier and the biochar into a flat centrifuge for second solid-liquid separation by using a centrifugal pump, and feeding the extract containing the heat carrier into a gas-liquid separation tower;
5) Heating a mixture containing an extraction liquid and a heat carrier in a separation tower, realizing gas-liquid separation by utilizing different boiling point differences, condensing and recycling gas phase extraction liquid gas at the top of the gas-liquid separation tower to a storage tank for recycling, and returning a liquid phase heat carrier at the bottom of the gas-liquid separation tower to the storage tank for recycling;
6) The biochar is sent into a lower dryer by gravity to be heated, and a trace amount of extraction liquid contained in the biochar is gasified, condensed and recycled through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211495485.7A CN115725329A (en) | 2022-11-27 | 2022-11-27 | Method for separating biochar from heat carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211495485.7A CN115725329A (en) | 2022-11-27 | 2022-11-27 | Method for separating biochar from heat carrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115725329A true CN115725329A (en) | 2023-03-03 |
Family
ID=85298496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211495485.7A Pending CN115725329A (en) | 2022-11-27 | 2022-11-27 | Method for separating biochar from heat carrier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115725329A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010077410A (en) * | 2008-08-27 | 2010-04-08 | Mitsui Eng & Shipbuild Co Ltd | Method for producing liquid fuel derived from biomass, and apparatus therefor |
| CN102899097A (en) * | 2012-09-20 | 2013-01-30 | 西安益众环保产业有限公司 | Biomass liquid fuel and production method thereof |
| CN104629786A (en) * | 2015-02-09 | 2015-05-20 | 上海交通大学 | Method for producing liquid fuel from biomass waste |
| CN104841409A (en) * | 2015-01-09 | 2015-08-19 | 青岛科技大学 | Regeneration method for waste active carbon in itaconic acid decoloring step |
| CN106833709A (en) * | 2017-03-30 | 2017-06-13 | 山东晨阳新型碳材料股份有限公司 | The production technology and its device of a kind of low quinoline insolubles pitch |
-
2022
- 2022-11-27 CN CN202211495485.7A patent/CN115725329A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010077410A (en) * | 2008-08-27 | 2010-04-08 | Mitsui Eng & Shipbuild Co Ltd | Method for producing liquid fuel derived from biomass, and apparatus therefor |
| CN102899097A (en) * | 2012-09-20 | 2013-01-30 | 西安益众环保产业有限公司 | Biomass liquid fuel and production method thereof |
| CN104841409A (en) * | 2015-01-09 | 2015-08-19 | 青岛科技大学 | Regeneration method for waste active carbon in itaconic acid decoloring step |
| CN104629786A (en) * | 2015-02-09 | 2015-05-20 | 上海交通大学 | Method for producing liquid fuel from biomass waste |
| CN106833709A (en) * | 2017-03-30 | 2017-06-13 | 山东晨阳新型碳材料股份有限公司 | The production technology and its device of a kind of low quinoline insolubles pitch |
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| PB01 | Publication | ||
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