CN111057567A - Biomass pyrolysis gasification poly-generation system and method - Google Patents
Biomass pyrolysis gasification poly-generation system and method Download PDFInfo
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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
- C10B53/02—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of cellulose-containing material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/002—Removal of contaminants
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G5/00—Profiting from waste heat of combustion engines, not otherwise provided for
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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
- 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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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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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- 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
- Y02P20/133—Renewable energy sources, e.g. sunlight
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The invention discloses a biomass pyrolysis gasification poly-generation system and method. The biomass pyrolysis gasification poly-generation system comprises a biomass collecting and arranging device for sorting, arranging and pretreating biomass raw materials, a biomass gasification device for pyrolyzing and gasifying biomass raw materials, a biomass boiler, a part of combustible gas generated by pyrolysis and gasification is directly used for burning the biomass boiler, generated steam is used for generating electricity by a steam turbine generator unit, the rest combustible gas enters a gas purification device for purification, the impurities are removed and then the combustible gas is used for power generation of an internal combustion engine generator unit, solid matters generated by pyrolysis and gasification form biomass charcoal or fertilizer, waste heat of cooling water generated by pyrolysis and gasification is recovered by a gasification furnace cooling water utilization device, a steam turbine generator unit and the internal combustion engine generator unit generate power and then are sent into a public power grid, hot water generated by the steam turbine generator unit is utilized by a heat supply utilization device, and waste heat of the cooling water of the internal combustion engine generator unit is recovered by a generator cooling water. The invention can be widely applied to the field of biomass utilization.
Description
Technical Field
The invention belongs to the technical field of biomass utilization, and relates to a biomass pyrolysis gasification poly-generation system; in addition, the invention also relates to a biomass pyrolysis gasification poly-generation method.
Background
Biomass has been one of important energy sources on which people live and develop since ancient times, and with the development and utilization of coal, carbon and oil gas resources, people gradually reduce the utilization of biomass resources; however, as petrochemical resources are gradually depleted, the biomass utilization technology has highlighted its inherent value again. The existing biomass utilization is always in a relatively simple and low-level state; the utilization mode mainly based on combustion not only causes low utilization efficiency, but also pollutes the environment. Therefore, a comprehensive biomass utilization route with low resource consumption, high energy conversion efficiency, high oil gas yield, good semi-coke quality, maximized product benefit, energy conservation and emission reduction is sought, and the method has important significance on the energy strategy of China.
The poly-generation technology for co-producing electricity, carbon, fertilizer, heat and the like by using biomass is one of important ways for economically and cleanly utilizing the biomass. At present, the main technical directions for biomass utilization can be divided into the following categories: (1) a biomass direct combustion power generation technology; (2) a solidification molding granulation technology; (3) a dry distillation gas making technology; (4) a technology for preparing methane by fermentation; (5) biomass pyrolysis gas making technology; (6) a technology for preparing alcohol by biological oil preparation. At present, the biomass (garbage) direct combustion power generation technology is mainly applied. The direct combustion power generation has the problems of low efficiency and insignificant benefit, and the existing biomass power generation enterprises, garbage power plants and the like can achieve profit only by subsidy of electricity price; the problems of transportation, storage and high-efficiency utilization are only solved by solidification, molding and granulation; the gas production by dry distillation needs an external heat source, the gas production is discontinuous, and the economic benefit is not obvious; the reaction process for preparing the biogas by fermentation depends on temperature, and the amount of the residue and the biogas slurry is large and difficult to treat; although the technology of biological oil and alcohol production can be over-closed, the large-scale industrial production is difficult to realize economically. The existing utilization modes have some serious defects, and the popularization and the application of the biomass resource utilization technology are restricted.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a biomass utilization pyrolysis gasification coupling integrated poly-generation system and process, so as to solve the problems of low energy utilization efficiency and difficult pyrolysis semicoke utilization in the existing biomass utilization field, realize reasonable configuration of fertilizer, carbon, electricity and heat, and achieve the purposes of energy conservation, emission reduction and product benefit maximization.
The invention also provides a poly-generation method for biomass pyrolysis gasification.
In order to achieve the purpose, the invention provides the following technical scheme:
a biomass pyrolysis gasification poly-generation system comprises a biomass collection and arrangement device, a biomass gasification device, a biomass boiler, a gas purification device, a gasifier cooling water utilization device, a biomass charcoal or fertilizer collection device, a turbo generator unit and an internal combustion engine generator unit, wherein the biomass collection and arrangement device is used for classifying, arranging and pretreating biomass raw materials, the biomass gasification device is used for carrying out pyrolysis gasification on the pretreated biomass raw materials, one part of combustible gas generated in the pyrolysis gasification process is directly used as fuel combusted by the biomass boiler, steam generated after the biomass boiler is combusted is used as a power source of the turbo generator unit for power generation, the rest part of the combustible gas generated in the pyrolysis gasification process enters the gas purification device for purification and impurity removal treatment, and the fuel removed from the impurity is used as the fuel of the internal combustion engine generator unit for power generation, the biomass charcoal or the biomass fertilizer is formed by solid matters generated in the pyrolysis and gasification process, the biomass charcoal or the fertilizer is collected by the biomass charcoal or fertilizer collecting device and is used as fuel or fertilizer, waste heat brought by cooling water in the pyrolysis and gasification process is recycled after heat exchange by the gasifier cooling water utilizing device, the steam turbine generator unit generates electricity and then sends the electricity to a public power grid, hot water generated in the electricity generation process is used for supplying heat to the heat utilizing device for heat utilization, the internal combustion engine generator unit generates electricity and then sends the electricity to the public power grid, and waste heat brought by the cooling water in the electricity generation process is used for heat exchange and recycling by the generator cooling water heat utilizing device.
The biomass gasification device is a small fluidized bed type gasification furnace.
The biomass collecting and arranging device comprises a crushing device and a feeding device.
The gas purification device comprises a tar removal device.
The tar removing device is a spray tar removing device, a bubbling tar removing device or an electric catching tar removing device.
The biomass charcoal or fertilizer collecting device comprises a discharging device and a packing device.
The gasification furnace cooling water utilization device and the generator cooling water heat utilization device comprise heat exchangers.
The heat supply utilization device is a heat supply pipeline system.
The invention also provides the following technical scheme:
a biomass pyrolysis gasification poly-generation method comprises the steps of classifying, arranging and preprocessing biomass raw materials through a biomass collecting and arranging device; carrying out pyrolysis gasification on the pretreated biomass raw material by using a biomass gasification device; one part of combustible gas generated in the pyrolysis and gasification process is directly used as burning fuel to be conveyed to a biomass boiler, steam generated after the combustion of the biomass boiler is conveyed to a steam turbine generator unit to be used as a power source for power generation, the rest part of the combustible gas generated in the pyrolysis and gasification process is conveyed to a fuel gas purification device to be purified and impurity-removed, the combustible gas with the impurity removed is conveyed to an internal combustion engine generator unit to be used as fuel for power generation, solid generated in the pyrolysis and gasification process forms biomass charcoal or biomass fertilizer, the biomass charcoal or fertilizer is collected by a biomass charcoal or fertilizer collection device and is used as the fuel or fertilizer, and waste heat brought by cooling water in the pyrolysis and gasification process is recycled after heat exchange by a gasification furnace cooling water utilization device; the steam turbine generator unit generates electricity and then sends the electricity to a public power grid, and hot water generated in the electricity generation process is used for supplying heat to the public power grid through a heat supply utilization device; and after the internal combustion engine generator set generates power, the power is sent into the public power grid, and waste heat brought by cooling water in the power generation process is subjected to heat exchange and recycling through the generator cooling water heat utilization device.
The biomass gasification device is a small fluidized bed type gasification furnace.
The biomass collecting and arranging device comprises a crushing device and a feeding device.
The gas purification device comprises a tar removal device.
The tar removing device is a spray tar removing device, a bubbling tar removing device or an electric catching tar removing device.
The biomass charcoal or fertilizer collecting device comprises a discharging device and a packing device.
The gasification furnace cooling water utilization device and the generator cooling water heat utilization device comprise heat exchangers.
The heat supply utilization device is a heat supply pipeline system.
Compared with the prior art, the invention has the beneficial effects that: the biomass pyrolysis gasification poly-generation system comprises a biomass collecting and finishing device, a biomass gasification device, a biomass boiler, a fuel gas purification device, a gasification furnace cooling water utilization device, a biomass charcoal or fertilizer collecting device, a turbo generator unit and an internal combustion engine generator unit, wherein the biomass collecting and finishing device is used for carrying out classification finishing and pretreatment on biomass raw materials, the biomass gasification device is used for carrying out pyrolysis gasification on the pretreated biomass raw materials, one part of combustible gas generated in the pyrolysis gasification process is directly used as fuel combusted by the biomass boiler, steam generated after the biomass boiler is combusted is used as a power source of the turbo generator unit for power generation, and the rest part of the combustible gas generated in the pyrolysis gasification process enters the fuel gas purification device for purification and impurity removal, after impurities are removed, the biomass charcoal or the biomass fertilizer is used as fuel of the internal combustion engine generator set for power generation, solid matters generated in the pyrolysis gasification process form biomass charcoal or biomass fertilizer, the biomass charcoal or the fertilizer is collected by the biomass charcoal or fertilizer collecting device and is used as fuel or fertilizer for utilization, waste heat brought by cooling water in the pyrolysis gasification process is recycled after heat exchange by the gasifier cooling water utilization device, the steam turbine generator set generates power and then is sent into a public power grid, hot water generated in the power generation process is used for heat supply utilization by the heat supply utilization device and is sent into the public power grid after power generation by the internal combustion engine generator set, and waste heat brought by the cooling water in the power generation process is used for heat exchange recycling by the power generator cooling water heat utilization device; according to the biomass pyrolysis gasification poly-generation method, biomass raw materials are classified, sorted and pretreated through the biomass collecting and finishing device; carrying out pyrolysis gasification on the pretreated biomass raw material by using a biomass gasification device; one part of combustible gas generated in the pyrolysis and gasification process is directly used as burning fuel to be conveyed to a biomass boiler, steam generated after the combustion of the biomass boiler is conveyed to a steam turbine generator unit to be used as a power source for power generation, the rest part of the combustible gas generated in the pyrolysis and gasification process is conveyed to a fuel gas purification device to be purified and impurity-removed, the combustible gas with the impurity removed is conveyed to an internal combustion engine generator unit to be used as fuel for power generation, solid generated in the pyrolysis and gasification process forms biomass charcoal or biomass fertilizer, the biomass charcoal or fertilizer is collected by a biomass charcoal or fertilizer collection device and is used as the fuel or fertilizer, and waste heat brought by cooling water in the pyrolysis and gasification process is recycled after heat exchange by a gasification furnace cooling water utilization device; the steam turbine generator unit generates electricity and then sends the electricity to a public power grid, and hot water generated in the electricity generation process is used for supplying heat to the public power grid through a heat supply utilization device; the internal combustion engine generator set generates power and then sends the power to the public power grid, and waste heat brought by cooling water in the power generation process is subjected to heat exchange and recycling through a generator cooling water heat utilization device; the invention takes low-temperature pyrolysis-gasification of biomass as a core, starts with the pyrolysis gasification technology engineering, obtains fertilizer, charcoal, heat and innovation of high-efficiency utilization while pyrolyzing and gasifying the biomass, solves the problem of single pyrolysis gasification technology product, solves various technical problems in the process route that hot gas generated by a pyrolysis gasification generator is directly supplied to a gas boiler and boiler steam to drive a steam turbine to generate electricity, fundamentally solves the technical problem that tar and biomass extracting solution pollute the environment, organically combines the pyrolysis and gasification of the biomass with the production processes of oil, gas, fertilizer, electricity and heat, realizes the integration of substance conversion and energy conversion, achieves the grading utilization, value improvement, maximization of utilization efficiency and economic benefit and the improvement of energy utilization efficiency of biomass resources, can flexibly utilize raw materials for producing different products, and simultaneously realizes oil, charcoal, steam and steam generation, The invention can contain multi-product co-production (oil, gas, fertilizer, electricity and heat) to the maximum extent, has the characteristics of comprehensive complementation of energy resources, product flexibility, high added value, high market demand change adaptability and the like, can integrate substances with an energy conversion process and a pollutant control process to the maximum extent, and has the potential of low energy consumption, low cost, harmful substance emission control, pollution minimization and the like; the invention relates to a biomass utilization pyrolysis gasification coupling integrated poly-generation system and a process method, which can solve the problems of low energy utilization efficiency and difficult pyrolysis semicoke utilization in the field of biomass utilization at present, realize reasonable configuration of fertilizer, carbon, electricity and heat, and achieve the purposes of energy conservation, emission reduction and product benefit maximization.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a biomass pyrolysis gasification polygeneration system according to an embodiment of the present invention;
FIG. 2 is a schematic flow diagram of a biomass pyrolysis gasification polygeneration method according to an embodiment of the invention.
In the figure: 1-biomass collecting and finishing device; 2-a biomass gasification unit; 3-a biomass boiler; 4-a gas purification device; 5-a cooling water utilization device of the gasification furnace; 6-biomass charcoal or fertilizer collection device; 7-a steam turbine generator unit and 8-an internal combustion engine generator unit; 9-a heat supply utilization device; 10-public power grid; 11-generator cooling water heat utilization device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the biomass pyrolysis gasification poly-generation system of the embodiment includes a biomass collecting and arranging device 1, a biomass gasification device 2, a biomass boiler 3, a gas purifying device 4, a gasification furnace cooling water utilization device 5, a biomass charcoal or fertilizer collecting device 6, a turbo generator unit 7, and an internal combustion engine generator unit 8, wherein the biomass collecting and arranging device 1 is used for sorting and pretreating biomass raw materials, the biomass gasification device 2 is used for pyrolyzing and gasifying pretreated biomass raw materials, a part of combustible gas generated in the pyrolysis and gasification process is directly used as fuel for combustion of the biomass boiler 3, steam generated after combustion of the biomass boiler 3 is used as a power source of the turbo generator unit 7 for power generation, and the rest of the combustible gas generated in the pyrolysis and gasification process enters the gas purifying device 4 for purification and impurity removal, the biomass fuel gas contains various impurities, so that the rear gasification power generation equipment can not cause the problems of abrasion, corrosion, pollution and the like due to the existence of the impurities, the biomass fuel gas is used as the fuel of the internal combustion engine generator set 8 for power generation after the impurities are removed, the solid generated in the pyrolysis gasification process forms biomass charcoal or biomass fertilizer, the biomass carbon or fertilizer is collected by the biomass carbon or fertilizer collecting device 6 and is used as fuel or fertilizer, the waste heat brought by the cooling water in the pyrolysis gasification process is recycled after heat exchange by the gasification furnace cooling water utilizing device 5, the steam turbine generator unit 7 generates electricity and then sends the electricity to a public power grid 10, hot water generated in the electricity generation process is used for a heat supply utilization device 9 to supply heat for utilization, the internal combustion engine generator set 8 generates power and then sends the power to the public power grid 10, and waste heat brought by cooling water in the power generation process is used for heat exchange and recycling of the power generator cooling water heat utilization device 11; in this embodiment, biomass gasification device 2 is small-size fluidized bed gasifier, finishing device 1 is collected to the living beings includes reducing mechanism, material feeding unit, gas purifier 4 is including removing the tar device, it removes the tar device or the bubbling method removes the tar device or the electrical trapping method removes the tar device to remove the tar device to be the spraying method, biomass charcoal or fertilizer collection device 6 includes discharging device, packing apparatus, gasifier cooling water utilizes device 5 generator cooling water heat utilizes device 11 to include the heat exchanger, heat utilization device 9 is heat supply pipe-line system.
Referring to fig. 2, the biomass pyrolysis gasification poly-generation method of the present embodiment is as follows: carrying out classification arrangement and pretreatment on biomass raw materials through a biomass collection and arrangement device 1; the pretreated biomass raw material is pyrolyzed and gasified by a biomass gasification device 2; a part of combustible gas generated in the pyrolysis and gasification process is directly delivered to the biomass boiler 3 as fuel for combustion, the steam generated after the combustion of the biomass boiler 3 is sent to a turbo generator unit 7 to be used as a power source for power generation, the rest part of the combustible gas generated in the pyrolysis and gasification process is conveyed to a gas purification device 4 to be purified and impurity-removed, the biomass gas contains various impurities, the problems of abrasion, corrosion, pollution and the like caused by the existence of the impurities of rear gasification power generation equipment are solved, the combustible gas after the impurities are removed is conveyed to an internal combustion engine generator unit 8 to be used as fuel for power generation, and the solid generated in the pyrolysis and gasification process forms biomass carbon or biomass fertilizer, the biomass carbon or fertilizer is collected by a biomass carbon or fertilizer collecting device 6 and is used as fuel or fertilizer, and the waste heat brought by cooling water in the pyrolysis and gasification process is recycled after heat exchange by a gasification furnace cooling water utilizing device 5; the steam turbine generator unit 7 generates electricity and then sends the electricity to a public power grid 10, and hot water generated in the electricity generation process is used for supplying heat to the public power grid through a heat supply utilization device 9; the internal combustion engine generator set 8 generates power and then sends the power to the public power grid 10, and waste heat brought by cooling water in the power generation process is subjected to heat exchange and recycling through a generator cooling water heat utilization device 11; in this embodiment, biomass gasification device 2 is small-size fluidized bed gasifier, finishing device 1 is collected to the living beings includes reducing mechanism, material feeding unit, gas purifier 4 is including removing the tar device, it removes the tar device or the bubbling method removes the tar device or the electrical trapping method removes the tar device to remove the tar device to be the spraying method, biomass charcoal or fertilizer collection device 6 includes discharging device, packing apparatus, gasifier cooling water utilizes device 5 generator cooling water heat utilizes device 11 to include the heat exchanger, heat utilization device 9 is heat supply pipe-line system.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
The invention takes low-temperature pyrolysis-gasification of biomass as a core, starts with the pyrolysis gasification technology engineering, obtains fertilizer, charcoal, heat and innovation of high-efficiency utilization while pyrolyzing and gasifying the biomass, solves the problem of single pyrolysis gasification technology product, solves various technical problems in the process route that hot gas generated by a pyrolysis gasification generator is directly supplied to a gas boiler and boiler steam to drive a steam turbine to generate electricity, fundamentally solves the technical problem that tar and biomass extracting solution pollute the environment, organically combines the pyrolysis and gasification of the biomass with the production processes of oil, gas, fertilizer, electricity and heat, realizes the integration of substance conversion and energy conversion, achieves the grading utilization, value improvement, maximization of utilization efficiency and economic benefit and the improvement of energy utilization efficiency of biomass resources, can flexibly utilize raw materials for producing different products, and simultaneously realizes oil, charcoal, steam and steam generation, The invention can contain multi-product co-production (oil, gas, fertilizer, electricity and heat) to the maximum extent, has the characteristics of comprehensive complementation of energy resources, product flexibility, high added value, high market demand change adaptability and the like, can integrate substances with an energy conversion process and a pollutant control process to the maximum extent, and has the potential of low energy consumption, low cost, harmful substance emission control, pollution minimization and the like; the invention relates to a biomass utilization pyrolysis gasification coupling integrated poly-generation system and a process method, which can solve the problems of low energy utilization efficiency and difficult pyrolysis semicoke utilization in the field of biomass utilization at present, realize reasonable configuration of fertilizer, carbon, electricity and heat, and achieve the purposes of energy conservation, emission reduction and product benefit maximization.
The invention can be widely applied to the field of biomass utilization.
Claims (10)
1. A biomass pyrolysis gasification poly-generation system is characterized in that: comprises a biomass collecting and arranging device (1), a biomass gasifying device (2), a biomass boiler (3), a gas purifying device (4), a gasifier cooling water utilizing device (5), a biomass charcoal or fertilizer collecting device (6), a turbo generator unit (7) and an internal combustion engine generator unit (8), wherein the biomass collecting and arranging device (1) is used for classifying and pretreating biomass raw materials, the biomass gasifying device (2) is used for carrying out pyrolysis gasification on the pretreated biomass raw materials, one part of combustible gas generated in the pyrolysis gasification process is directly used as fuel for combustion of the biomass boiler (3), steam generated after the combustion of the biomass boiler (3) is used as a power source of the turbo generator unit (7) for power generation, and the rest part of the combustible gas generated in the pyrolysis gasification process enters the gas purifying device (4) for purification and impurity removal, after impurities are removed, the biomass charcoal or the biomass fertilizer is used as fuel of the internal combustion engine generator set (8) for power generation, solid matters generated in the pyrolysis gasification process form biomass charcoal or biomass fertilizer, the biomass charcoal or the fertilizer is collected by the biomass charcoal or fertilizer collecting device (6) and is used as fuel or fertilizer for utilization, waste heat brought by cooling water in the pyrolysis gasification process is recycled after heat exchange by the gasifier cooling water utilization device (5), the steam turbine generator set (7) sends the generated heat to a public power grid (10), hot water generated in the power generation process is used for supplying heat to the hot water utilization device (9) for utilization, the internal combustion engine generator set (8) sends the generated heat to the public power grid (10), and waste heat brought by the cooling water in the power generation process is used for heat exchange and recycling by the generator cooling water heat utilization device (11).
2. The biomass pyrolysis gasification polygeneration system of claim 1, wherein: the biomass gasification device (2) is a small fluidized bed type gasification furnace.
3. The biomass pyrolysis gasification polygeneration system of claim 1, wherein: the biomass collecting and arranging device (1) comprises a crushing device and a feeding device.
4. The biomass pyrolysis gasification polygeneration system of claim 1, wherein: the gas purification device (4) comprises a tar removal device.
5. The biomass pyrolysis gasification polygeneration system of claim 4, wherein: the tar removing device is a spray tar removing device, a bubbling tar removing device or an electric catching tar removing device.
6. The biomass pyrolysis gasification polygeneration system of claim 1, wherein: the biomass charcoal or fertilizer collecting device (6) comprises a discharging device and a packing device.
7. The biomass pyrolysis gasification polygeneration system of claim 1, wherein: the gasification furnace cooling water utilization device (5) and the generator cooling water heat utilization device (11) comprise heat exchangers.
8. The biomass pyrolysis gasification polygeneration system of claim 1, wherein: the heat supply utilization device (9) is a heat supply pipeline system.
9. A biomass pyrolysis gasification poly-generation method is characterized in that: sorting, arranging and pretreating biomass raw materials through a biomass collecting and arranging device (1); carrying out pyrolysis gasification on the pretreated biomass raw material through a biomass gasification device (2); one part of combustible gas generated in the pyrolysis and gasification process is directly used as burning fuel and is conveyed to a biomass boiler (3), steam generated after the burning of the biomass boiler (3) is conveyed to a steam turbine generator unit (7) to be used as a power source for power generation, the rest part of the combustible gas generated in the pyrolysis and gasification process is conveyed to a fuel gas purification device (4) to be purified and impurity-removed, the combustible gas with the impurities removed is conveyed to an internal combustion engine generator unit (8) to be used as the fuel for power generation, solid generated in the pyrolysis and gasification process forms biomass charcoal or biomass fertilizer, the biomass charcoal or fertilizer is collected by a biomass charcoal or fertilizer collection device (6) and is used as the fuel or fertilizer, and waste heat brought by cooling water in the pyrolysis and gasification process is recycled after heat exchange by a gasifier cooling water utilization device (5); the steam turbine generator unit (7) generates electricity and then sends the electricity to a public power grid (10), and hot water generated in the electricity generation process is used for supplying heat to the hot water through a heat supply utilization device (9); the internal combustion engine generator set (8) sends the generated power to the public power grid (10), and waste heat brought by cooling water in the power generation process is subjected to heat exchange and recycling through the generator cooling water heat utilization device (11).
10. The biomass pyrolysis gasification polygeneration method of claim 9, wherein: the biomass gasification device (2) is a small fluidized bed type gasification furnace; the biomass collecting and arranging device (1) comprises a crushing device and a feeding device; the gas purification device (4) comprises a tar removal device; the tar removing device is a spray tar removing device, a bubbling tar removing device or an electric catching tar removing device; the biomass charcoal or fertilizer collecting device (6) comprises a discharging device and a packing device; the gasification furnace cooling water utilization device (5) and the generator cooling water heat utilization device (11) comprise heat exchangers; the heat supply utilization device (9) is a heat supply pipeline system.
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| CN111808622A (en) * | 2020-07-26 | 2020-10-23 | 佟进伟 | Garbage energy source heat decomposition power generation device |
| CN112138607A (en) * | 2020-10-22 | 2020-12-29 | 安徽环态生物能源科技开发有限公司 | Cooling temperature control system of biomass fuel particle forming machine |
| CN114621794A (en) * | 2022-05-16 | 2022-06-14 | 烟台尚美丽家新能源有限公司 | Multifunctional coupling intelligent combined supply production system and method for biomass gasification furnace |
| CN116496810A (en) * | 2023-03-22 | 2023-07-28 | 西北大学 | FCC (fluid catalytic cracking) device carbon neutralization method for coupling co-refining and green electricity |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111808622A (en) * | 2020-07-26 | 2020-10-23 | 佟进伟 | Garbage energy source heat decomposition power generation device |
| CN112138607A (en) * | 2020-10-22 | 2020-12-29 | 安徽环态生物能源科技开发有限公司 | Cooling temperature control system of biomass fuel particle forming machine |
| CN112138607B (en) * | 2020-10-22 | 2023-03-28 | 武汉热解无限能源科技有限公司 | Cooling temperature control system of biomass fuel particle forming machine |
| CN114621794A (en) * | 2022-05-16 | 2022-06-14 | 烟台尚美丽家新能源有限公司 | Multifunctional coupling intelligent combined supply production system and method for biomass gasification furnace |
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