CN113862007A - Industrial organic solid waste pyrolysis gasification and coal-fired cogeneration coupling method - Google Patents
Industrial organic solid waste pyrolysis gasification and coal-fired cogeneration coupling method Download PDFInfo
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- CN113862007A CN113862007A CN202111123394.6A CN202111123394A CN113862007A CN 113862007 A CN113862007 A CN 113862007A CN 202111123394 A CN202111123394 A CN 202111123394A CN 113862007 A CN113862007 A CN 113862007A
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- 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
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- 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
- C10B47/00—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion
- C10B47/18—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion with moving charge
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- 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
- C10B57/005—After-treatment of coke, e.g. calcination desulfurization
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/58—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels combined with pre-distillation of the fuel
- C10J3/60—Processes
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/86—Other features combined with waste-heat boilers
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0903—Feed preparation
- C10J2300/0906—Physical processes, e.g. shredding, comminuting, chopping, sorting
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/0946—Waste, e.g. MSW, tires, glass, tar sand, peat, paper, lignite, oil shale
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/12—Heating the gasifier
- C10J2300/1207—Heating the gasifier using pyrolysis gas as fuel
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1671—Integration of gasification processes with another plant or parts within the plant with the production of electricity
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- 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
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a method for coupling pyrolysis gasification and coal-fired cogeneration of industrial organic solid waste, which comprises the steps of crushing the industrial organic solid waste and removing metal by magnetic separation; conveying the crushed raw materials subjected to metal removal to a pyrolysis reactor for pyrolysis reaction; the generated pyrolysis gas enters a combustion boiler, and the generated pyrolytic carbon enters a coal mill to be mixed and crushed with coal and then enters the combustion boiler for full combustion reaction; high-temperature flue gas generated by the combustion boiler passes through the waste heat boiler to generate steam for cogeneration, and then enters flue gas treatment equipment for treatment and standard emission. The invention couples the pyrolysis gasification of industrial organic solid wastes with the cogeneration of coal-fired heat and power, saves the use of coal fossil fuel and improves the power generation efficiency of a coal-fired power plant.
Description
Technical Field
The invention relates to a garbage utilization technology, in particular to a method for coupling pyrolysis gasification of industrial organic solid wastes and coal-fired cogeneration.
Background
The comprehensive utilization of industrial solid wastes is an important component of new energy-saving and environment-friendly strategic industries, which not only is an important way for providing resource guarantee for the good and fast development of the industries, but also is a fundamental policy for solving the environmental pollution and potential safety hazard caused by improper disposal and stacking of the industrial solid wastes. The comprehensive utilization of industrial organic solid waste is the key to realizing transformation and upgrading of industry, so that the municipal solid waste can be fully utilized as a resource, and the method has high environmental benefit and social benefit. At present, the resource utilization of industrial organic solid wastes is mainly waste incineration power generation or mixed combustion power generation with a coal-fired power plant, but the problems of low energy utilization efficiency, low resource utilization level and the like exist, especially the problems of cancellation and reduction of current biomass power generation subsidies and successive shutdown of a thermal power plant with high energy consumption efficiency and low thermal power plant exist, and how to improve the energy utilization efficiency is an important way for solving the long-term development of waste incineration power plants and coal-fired power plants. The country encourages biomass direct-combustion power generation and greatly supports a novel production model method of coupling coal-fired units and biomass for power generation. The technical advantages of the existing clean and efficient coal-electricity generating set in China are fully utilized, and efficient and clean utilization of biomass is realized by depending on an existing coal-electricity efficient power generation system and a pollutant centralized treatment facility.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a method for coupling pyrolysis gasification of industrial organic solid waste and cogeneration of coal and heat, which couples the pyrolysis gasification of the industrial organic solid waste and the cogeneration of the coal and heat, saves the use of coal fossil fuel and improves the power generation efficiency of a coal-fired power plant.
In order to achieve the purpose, the invention adopts the technical scheme that:
a method for coupling pyrolysis gasification of industrial organic solid waste and coal-fired cogeneration is characterized in that the industrial organic solid waste is crushed and then subjected to magnetic separation to remove metals; conveying the crushed raw materials subjected to metal removal to a pyrolysis reactor for pyrolysis reaction; the generated pyrolysis gas enters a combustion boiler, and the generated pyrolytic carbon enters a coal mill to be mixed and crushed with coal and then enters the combustion boiler for full combustion reaction; high-temperature flue gas generated by the combustion boiler passes through the waste heat boiler to generate steam for cogeneration, and then enters flue gas treatment equipment for treatment and standard emission.
As a modification of the invention, the pyrolysis reactor is an external-heat rotary scraper pyrolysis reactor. The indirect pyrolysis design can avoid the direct contact between the hot flue gas and the combustible common industrial solid waste, ensure the quality of the pyrolysis gas and provide powerful guarantee for the subsequent full combustion. The rotary design can ensure the sufficient contact of the materials on the heat transfer surface, simultaneously realize the sufficient rolling of the materials and ensure the sufficient proceeding of the pyrolysis reaction.
Furthermore, the external heat rotating scraper type pyrolysis reactor is provided with a flexible scraper for cleaning the heat exchange surface of the reactor and preventing coking.
As an improvement of the invention, the heat source of the pyrolysis reactor is high-temperature flue gas generated by a combustion boiler.
Compared with the prior art, the invention has the following advantages:
1. the invention provides an external heat rotary scraper type pyrolysis technology aiming at the defects of low thermal efficiency and long pyrolysis period of the conventional pyrolysis device, effectively reduces the pyrolysis treatment time of combustible general industrial solid waste, enhances the pyrolysis efficiency, and ensures continuous, stable, efficient and harmless treatment of the combustible general industrial solid waste.
2. Has strong resistance to combustible common industrial solid waste components and heat value fluctuation. A stirring device with special design is arranged in the coking device to prevent the thermal stagnation phenomenon generated by coking. The device has the advantages of convenience in installation, simplicity in operation and maintenance, short processing period, low investment cost and the like.
3. By adopting a pyrolysis gasification-combustion coupling mode, the pyrolysis reactor is in a reducing atmosphere, so that the initial generation of dioxin and NOx is effectively reduced, the pollutant emission advantage is obvious, and the tail gas treatment cost is low. The pyrolysis gas is fully combusted in the boiler, so that the full decomposition of pollutants such as dioxin, volatile organic compounds and the like is ensured, the excess air coefficient can be effectively reduced, and the energy is effectively saved.
Drawings
FIG. 1 is a flow chart of the operation of the present invention.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description.
Examples
As shown in figure 1, the method for coupling pyrolysis gasification and coal-fired cogeneration of industrial organic solid waste is characterized in that common industrial organic solid waste is crushed by a crusher and then subjected to magnetic separation to remove metals, organic raw materials subjected to metal removal are conveyed to a pyrolysis reactor through a conveying device to undergo pyrolysis reaction, the separated metals are sold directly, pyrolysis gas generated by pyrolysis is introduced into a combustion boiler through an air inducing device or an air suction device to undergo full combustion reaction, pyrolysis carbon generated by pyrolysis enters a coal mill to be mixed and crushed with coal and then enters the combustion boiler to undergo full combustion reaction, high-temperature flue gas generated by combustion generates steam through a waste heat boiler to be used for cogeneration, and finally enters the existing power plant flue gas treatment equipment to be treated and then is discharged up to the standard.
Wherein, the pyrolysis reactor adopts outer hot rotatory scraper type pyrolysis reactor, and the heat source is the high temperature flue gas that the combustion boiler produced, sets up supplementary gas entry simultaneously and is used for the gas to start the stove, and the temperature is adjustable controllable, can ensure that the continuous of the general industry of combustible class is useless, stably deals with admittedly.
The external heat rotating scraper type pyrolysis reactor adopts an indirect pyrolysis design, can avoid the direct contact of the solid waste of hot flue gas and combustible general industry, further ensures the quality of pyrolysis gas, and provides powerful guarantee for the subsequent sufficient combustion. Meanwhile, the rotary design of the device can ensure the materials to be fully contacted with the heat transfer surface, and simultaneously realize the full rolling of the materials and ensure the full proceeding of the pyrolysis reaction.
Furthermore, the external heat rotating scraper type pyrolysis reactor is provided with a built-in flexible scraper, so that the cleanliness of a heat exchange surface of the reactor can be realized, the thermal stagnation phenomenon generated by coking is prevented, and the heat transfer efficiency of the reactor is ensured.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention accordingly, and not to limit the protection scope of the present invention accordingly. All equivalent changes or modifications made in accordance with the spirit of the present disclosure are intended to be covered by the scope of the present disclosure.
Claims (4)
1. A method for industrial organic solid waste pyrolysis gasification and coal-fired cogeneration coupling is characterized by comprising the following steps: crushing industrial organic solid waste, and removing metal by magnetic separation; conveying the crushed raw materials subjected to metal removal to a pyrolysis reactor for pyrolysis reaction; the generated pyrolysis gas enters a combustion boiler, and the generated pyrolytic carbon enters a coal mill to be mixed and crushed with coal and then enters the combustion boiler for full combustion reaction; high-temperature flue gas generated by the combustion boiler passes through the waste heat boiler to generate steam for cogeneration, and then enters flue gas treatment equipment for treatment and standard emission.
2. The method for coupling the pyrolysis gasification and the coal-fired cogeneration of industrial organic solid waste according to claim 1, characterized in that: the pyrolysis reactor is an external heat rotary scraper type pyrolysis reactor.
3. The method for coupling the pyrolysis gasification and the coal-fired cogeneration of industrial organic solid waste according to claim 2, characterized in that: the external heat rotary scraper type pyrolysis reactor is provided with a flexible scraper for cleaning a heat exchange surface of the reactor and preventing coking.
4. The method for coupling the pyrolysis gasification and the coal-fired cogeneration of industrial organic solid waste according to claim 1, characterized in that: and the heat source of the pyrolysis reactor is high-temperature flue gas generated by a combustion boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111123394.6A CN113862007A (en) | 2021-09-24 | 2021-09-24 | Industrial organic solid waste pyrolysis gasification and coal-fired cogeneration coupling method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111123394.6A CN113862007A (en) | 2021-09-24 | 2021-09-24 | Industrial organic solid waste pyrolysis gasification and coal-fired cogeneration coupling method |
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| CN113862007A true CN113862007A (en) | 2021-12-31 |
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| CN202111123394.6A Pending CN113862007A (en) | 2021-09-24 | 2021-09-24 | Industrial organic solid waste pyrolysis gasification and coal-fired cogeneration coupling method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114736699A (en) * | 2022-03-31 | 2022-07-12 | 广州维港环保科技有限公司 | Method for preparing alternative fuel by utilizing industrial solid waste pyrolysis carbonization product and application of alternative fuel |
| CN115271997A (en) * | 2022-07-06 | 2022-11-01 | 浙江安吉天子湖热电有限公司 | Coal and multi-element solid waste coupling power generation management method and device, electronic equipment and medium |
Citations (4)
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| JP2002256272A (en) * | 2001-03-01 | 2002-09-11 | Nippon Steel Corp | Continuous molded coke production facility |
| CN204079889U (en) * | 2014-08-19 | 2015-01-07 | 广东天源环境科技有限公司 | A kind of pyrolysis plant of organic solid waste process |
| CN106583426A (en) * | 2017-01-12 | 2017-04-26 | 湖南万容科技股份有限公司 | Papermaking waste residue energy utilization method |
| CN107062240A (en) * | 2017-04-17 | 2017-08-18 | 山东大学 | The system and method for Thermal generation unit cooperated with consumer waste pyrolysis |
-
2021
- 2021-09-24 CN CN202111123394.6A patent/CN113862007A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002256272A (en) * | 2001-03-01 | 2002-09-11 | Nippon Steel Corp | Continuous molded coke production facility |
| CN204079889U (en) * | 2014-08-19 | 2015-01-07 | 广东天源环境科技有限公司 | A kind of pyrolysis plant of organic solid waste process |
| CN106583426A (en) * | 2017-01-12 | 2017-04-26 | 湖南万容科技股份有限公司 | Papermaking waste residue energy utilization method |
| CN107062240A (en) * | 2017-04-17 | 2017-08-18 | 山东大学 | The system and method for Thermal generation unit cooperated with consumer waste pyrolysis |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114736699A (en) * | 2022-03-31 | 2022-07-12 | 广州维港环保科技有限公司 | Method for preparing alternative fuel by utilizing industrial solid waste pyrolysis carbonization product and application of alternative fuel |
| CN115271997A (en) * | 2022-07-06 | 2022-11-01 | 浙江安吉天子湖热电有限公司 | Coal and multi-element solid waste coupling power generation management method and device, electronic equipment and medium |
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