CN105441134A - System and method of biomass pyrolysis gas combustion-supporting direct-combustion boiler process - Google Patents
System and method of biomass pyrolysis gas combustion-supporting direct-combustion boiler process Download PDFInfo
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- CN105441134A CN105441134A CN201510992425.XA CN201510992425A CN105441134A CN 105441134 A CN105441134 A CN 105441134A CN 201510992425 A CN201510992425 A CN 201510992425A CN 105441134 A CN105441134 A CN 105441134A
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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
- C10J3/02—Fixed-bed gasification of lump fuel
- C10J3/20—Apparatus; Plants
-
- 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
-
- 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
- C10J3/02—Fixed-bed gasification of lump fuel
-
- 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
- C10J3/82—Gas withdrawal means
- C10J3/84—Gas withdrawal means with means for removing dust or tar from the gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
- F23B90/00—Combustion methods not related to a particular type of apparatus
- F23B90/04—Combustion methods not related to a particular type of apparatus including secondary combustion
- F23B90/06—Combustion methods not related to a particular type of apparatus including secondary combustion the primary combustion being a gasification or pyrolysis in a reductive atmosphere
-
- 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
- C10J2300/0916—Biomass
-
- 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
- C10J2300/1603—Integration of gasification processes with another plant or parts within the plant with gas treatment
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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
-
- 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
Abstract
The invention relates to the field of carbon-power co-production realized by pyrolysis and gasification of biomasses and provides a system and a method of a biomass pyrolysis gas combustion-supporting direct-combustion boiler process. The system comprises a biomass pyrolysis and gasification furnace, a biomass carbon collection system, a high-temperature dust-removing and purification system, a biomass gas combustion system and a direct-combustion boiler system. A product I, namely biomass carbon, is produced by a biomass gasification furnace at the front end, and a product II, namely power, is produced by a direct-combustion boiler at the rear end through a steam turbine generator unit. In a power generation process, the carbon is produced, so that the utilization efficiency of energy sources is greatly improved and the emission is reduced; and the economic benefits of the carbon-power co-production are much higher than those of pure power generation. With the adoption of the system and method, the economic benefits are maximized and the environment-friendly problem is considered, and efficient and comprehensive utilization of biomass energy is realized.
Description
Technical field
The invention belongs to product field, biomass pyrogenation gasification charcoal Electricity Federation, particularly the system and method for the combustion-supporting direct-combustion boiler technique of a kind of new pyrolysis gas of biomass.
Background technology
The advantages such as biomass direct-fired technology is with a long history in the development history of the mankind, and modern biomass direct combustion power generation technology possesses skills that maturation, equipment are simple, ash content after burning is of many uses.But also Shortcomings: stricter to fuel dimensional requirement; Consume energy higher to maintain certain furnace temperature; The raw material that alkali metal content is higher easily causes heated surface corrosion condensation; Because moisture is more, calorific value is lower when burning away the refuse, rubbish is caused not easily to catch fire, burning and after-flame difficulty.From 1980's; through the effort in more than 20 years; China's biomass gasification technology is also gradually improved, and has completed demonstration and the layout of civilian distributed biological fuel gas supply system, and has tentatively possessed the industrial technology basis of mass-producing combustion gas preparation and generating.
The boiler controller system of current biomass electric power plant mainly uses rice husk, wood chip, various stalk (wheat straw, maize straw, cotton stalk, straw etc.), tree root, branch, the propellant combination that fuel wood etc. are dissimilar, along with the rising of biomass material price, if power plant's not heat supply of current medium temperature and medium pressure is difficult to realize profit, the power plant of High Temperature High Pressure also can only meagre profit run, how to increase economic efficiency is the key that biomass electric power plant is survived, biomass material accounts for about 60% in biomass electric power plant running cost, study the gordian technique that the utility value how improving high quality raw material has become biomass electric power plant development.
The concept utilizing technique is produced in the combustion-supporting direct-combustion boiler of the pyrolysis gas of biomass proposed on this basis-charcoal Electricity Federation, adopt " a kind of large-scale downdraft fixed bed biomass gasification furnace " of our company patent applied for (application number: 201510885717.3) good for mobility in direct-combustion boiler raw material as wood chip, sawdust, corn cob, rice husk, Pericarppium arachidis hypogaeae, wheat bran, first obtain biomass charcoal and pyrolysis gas with biomass pyrogenation gasification through the wheat stalk, maize straw etc. of fragmentation, pyrolysis gas enters the combustion-supporting inferior biomass material burning of direct-combustion boiler again.
Summary of the invention
The object of this invention is to provide the combustion-supporting direct-combustion boiler technique of a kind of new pyrolysis gas of biomass, improve Combustion Operation of Boilers, reach economic benefit and the social benefit alleviating ash erosion, reduce NOx emission, improve biomass comprehensive utilization.
The present invention is achieved by the following technical solutions:
A system for the combustion-supporting direct-combustion boiler technique of pyrolysis gas of biomass, comprises biomass pyrogenation gasification stove, high-temperature dust removal purification system, biogas combustion system, direct-combustion boiler system; The air outlet of described biomass pyrogenation gasification stove is connected with the inlet mouth of high-temperature dust removal purification system, the escape pipe of high-temperature dust removal purification system is connected with the inlet pipe of biogas combustion system, and biogas combustion system is connected by the high-temperature fuel gas spout being arranged at biogas combustion system end with direct-combustion boiler system.
The system of the combustion-supporting direct-combustion boiler technique of a kind of pyrolysis gas of biomass of the present invention, the system of the combustion-supporting direct-combustion boiler technique of described pyrolysis gas of biomass also comprises biomass charcoal gathering system, and described biomass charcoal gathering system is connected by the charcoal spiral that goes out being arranged at biomass pyrogenation gasification furnace bottom with biomass pyrogenation gasification stove.
The system of the combustion-supporting direct-combustion boiler technique of a kind of pyrolysis gas of biomass of the present invention, described high-temperature dust removal purification system comprises one-level high-temperature dust removal equipment and secondary high-temperature dust removal equipment, and the air outlet of one-level high-temperature dust removal equipment is connected with the inlet mouth of secondary high-temperature dust removal equipment.
The system of the combustion-supporting direct-combustion boiler technique of a kind of pyrolysis gas of biomass of the present invention, described biogas combustion system comprises high-temperature fuel gas blower fan, biomass gas burner and high-temperature fuel gas spout, high-temperature fuel gas blower fan connects secondary high-temperature dust removal treating plant and biomass gas burner respectively, and biomass gas burner is connected by high-temperature fuel gas spout with direct-combustion boiler system.
The system of the combustion-supporting direct-combustion boiler technique of a kind of pyrolysis gas of biomass of the present invention, described direct-combustion boiler system comprises direct-combustion boiler, and described high-temperature fuel gas spout is arranged at the lowermost end of direct-combustion boiler sidewall.
Use the method for the combustion-supporting direct-combustion boiler process system of a kind of pyrolysis gas of biomass of the present invention, comprise the following steps:
(1) by biomass through biomass pyrogenation gasification furnace gas;
(2) pyrolysis gas of biomass pyrogenation gasification stove output enters high-temperature dust removal purification system and carries out purifying treatment;
(3) pyrolysis gas of biomass after purifying treatment sprays into direct-combustion boiler from the high-temperature fuel gas spout of biogas combustion system.
The method of the combustion-supporting direct-combustion boiler process system of a kind of pyrolysis gas of biomass of the present invention, step (1) described biomass are after biomass pyrogenation gasification furnace gas, and the ashes of generation carries out collecting through biomass charcoal gathering system, canned, control of dust.
The method of the combustion-supporting direct-combustion boiler process system of a kind of pyrolysis gas of biomass of the present invention, is characterized in that: the heat of the described pyrolysis gas of biomass after purifying treatment of step (3) is no more than 30% of direct-combustion boiler.
The method of the combustion-supporting direct-combustion boiler process system of a kind of pyrolysis gas of biomass of the present invention, the speed that sprays into that the described pyrolysis gas of biomass after purifying treatment of step (3) sprays into direct-combustion boiler from the high-temperature fuel gas spout of biogas combustion system is 25 ~ 35m/s.
Beneficial effect of the present invention is:
The biomass gasifying furnace of front end produces product one: biomass charcoal; The direct-combustion boiler of rear end obtains product two through turbine driven set: electric power.Charcoal processing is taken into account in the process of generating, biomass charcoal can be widely used in steel mill insulation charcoal, mosquito-repellent incense carbon, gac, charcoal for roasting and charcoal base manure etc., the huge market demand, price are higher, not only increase substantially efficiency of energy utilization, improve the combustion conditions of boiler, reduce boiler scaling, reduce discharge (SO
2only 1/10th), also solve the pollution problem that the independent charcoal processing of biomass pyrogenation gasification produces the waste of combustion gas and tar, waste water, and the charcoal Electricity Federation economic benefit of producing is far above the economic benefit of simple generating.In guarantee, economic interests are maximized has taken into account environmental issue simultaneously in the present invention, achieve the high-efficiency comprehensive utilization of biomass energy.
Accompanying drawing explanation
Fig. 1 is the system architecture schematic diagram of the combustion-supporting direct-combustion boiler technique of a kind of pyrolysis gas of biomass of the present invention.
Reference numeral: 10, biomass pyrogenation gasification stove; 11, go out charcoal spiral; 20, biomass charcoal gathering system; 30, high-temperature dust removal purification system; 31, one-level high-temperature dust removal equipment; 32, secondary high-temperature dust removal equipment; 40, biogas combustion system; 41, high-temperature fuel gas blower fan; 42, biomass gas burner; 43, high-temperature fuel gas spout; 50, direct-combustion boiler system; 51, direct-combustion boiler.
Embodiment
For better understanding the present invention, below in conjunction with embodiment and accompanying drawing, the invention will be further described, and following examples are only that the present invention will be described but not are limited it.
system architecture:
As shown in Figure 1, the system of the combustion-supporting direct-combustion boiler technique of a kind of pyrolysis gas of biomass, comprises biomass pyrogenation gasification stove 10, biomass charcoal gathering system 20, high-temperature dust removal purification system 30, biogas combustion system 40, direct-combustion boiler system 50; Biomass charcoal gathering system 20 is connected by the charcoal spiral 11 that goes out be arranged at bottom biomass pyrogenation gasification stove 10 with biomass pyrogenation gasification stove 10, the air outlet of biomass pyrogenation gasification stove 10 is connected with the inlet mouth of high-temperature dust removal purification system 30, the escape pipe of high-temperature dust removal purification system 30 is connected with the inlet pipe of biogas combustion system 40, and biogas combustion system 40 is connected by the high-temperature fuel gas spout 43 being arranged at biogas combustion system 40 end with direct-combustion boiler system 50.
High-temperature dust removal purification system 30 comprises one-level high-temperature dust removal equipment 31 and secondary high-temperature dust removal equipment 32, and the air outlet of one-level high-temperature dust removal equipment 31 is connected with the inlet mouth of secondary high-temperature dust removal equipment 32.Biogas combustion system 40 comprises high-temperature fuel gas blower fan 41, biomass gas burner 42 and high-temperature fuel gas spout 43, high-temperature fuel gas blower fan 41 connects secondary high-temperature dust removal treating plant 32 and biomass gas burner 42 respectively, and biomass gas burner 42 is connected by high-temperature fuel gas spout 43 with direct-combustion boiler system 50.Direct-combustion boiler system 50 comprises direct-combustion boiler 51, and high-temperature fuel gas spout 43 is arranged at the lowermost end of direct-combustion boiler 51 sidewall.
principle of work:
Use the method for the combustion-supporting direct-combustion boiler process system of a kind of pyrolysis gas of biomass of the present invention: by biomass after biomass pyrogenation gasification stove 10 gasifies, the main component of pyrolysis gas of biomass is CO, H
2, CH
4, CO
2, N
2, wherein combustibleconstituents CO15 ~ 20%; H
23 ~ 10%; CH
44 ~ 12%.Biogas calorific value 1000 ~ 1200Kcal/Nm
3.On the one hand, pyrolysis gas of biomass enters one-level high-temperature dust removal equipment 31 and secondary high-temperature dust removal equipment 32 purifies, the flue dust that removing biomass pyrogenation gasification stove 10 is taken out of and carbon residue, and then spray into direct-combustion boiler system 50 by the high-temperature fuel gas spout 43 bottom direct-combustion boiler 51, the speed of spraying into is 25 ~ 35m/s, the combustion-supporting biomass fuel carried by direct-combustion boiler 51 opening for feed, heat is no more than 30% of direct-combustion boiler.On the other hand, biomass are after biomass pyrogenation gasification stove 10 gasifies, and the ashes of generation carries out collecting through biomass charcoal gathering system 20, canned, control of dust.
embodiment 1:30MW biomass fermentation group of motors
1. original system: 1 130t/h High Temperature High Pressure biomass direct-combustion boiler+1 cover 30MW turbine driven set.
(1) year biomass consumption: equipment year, hours of operation was by 7000h, year biomass consumption peak 21.34*10
4ton.
(2) air output: 16.77*10
4m
3/ h.
(3) by product: lime-ash.
2. present system: 2 feed processing capacity are 3t/h biomass pyrogenation gasification stove+1 130t/h High Temperature High Pressure biomass direct-combustion boiler+1 cover 30MW turbine driven set.
(1) year biomass consumption: utilize inferior biomass material in pyrolysis gas of biomass combustion-supporting furnace, the energy of pyrolysis gas of biomass and boiler oil energy Ratios are 15%, direct-combustion boiler year feed consumption rate be reduced to 18.51*10
4ton, whole set process year feed consumption rate be 22.71*10
4ton, is compared to and direct combustion power generation system year increases feed consumption rate 13705.08 tons.
(2) air output: pyrolysis gas sprays into burning below biomass direct-combustion boiler opening for feed, when spraying into speed 25m/s ~ 35m/s, the air output 15.67*10 of direct-combustion boiler
4m
3/ h; Reduce boiler First air consumption 7%, improve the combustion efficacy of boiler, reduce the generation of NOx.
(3) by product: charcoal 11340 tons produced per year by biomass pyrogenation gasification stove, direct-combustion boiler reduces lime-ash 4432.12 tons.
3. increase economic benefit: the gross investment of building up 30MW biomass power plant according to this technique increases by 6,000,000.Biomass material 400 yuan/ton, raw material year increases expense 548.20 ten thousand yuan; Biomass charcoal powder 1200 yuan/ton, increases powdered carbon benefit 1360.80 ten thousand yuan; Boiler ash 50 yuan/ton, lime-ash reduces income 22.16 ten thousand yuan; Add up to this technique additional income 790.44 ten thousand yuan, runing 1 year is that recoverable fully invested earns a profit 190.44 ten thousand yuan.
embodiment 2:15MW biomass fermentation group of motors
1. original system: 1 75t/h medium temperature and medium pressure biomass direct-combustion boiler+1 cover 15MW turbine driven set.
(1) year biomass consumption: equipment year, hours of operation was by 7000h, year biomass consumption peak 11.82*10
4ton.
(2) air output: 9.31*10
4m
3/ h.
(3) by product: lime-ash.
2. present system: 2 feed processing capacity are 2t/h biomass pyrogenation gasification stove+1 75t/h medium temperature and medium pressure biomass direct-combustion boiler+1 cover 15MW turbine driven set.
(1) year biomass consumption: utilize inferior biomass material in pyrolysis gas of biomass combustion-supporting furnace, the energy of pyrolysis gas of biomass and boiler oil energy Ratios are 25%, direct-combustion boiler year feed consumption rate be reduced to 9.49*10
4ton, whole set process year feed consumption rate be 12.99*10
4ton, is compared to and direct combustion power generation system year increases feed consumption rate 11420.90 tons.
(2) air output: pyrolysis gas sprays into burning below biomass direct-combustion boiler opening for feed, when spraying into speed 25m/s ~ 35m/s, the air output 8.39*10 of direct-combustion boiler
4m
3/ h; Reduce boiler First air consumption 10%, improve the combustion efficacy of boiler, reduce the generation of NOx.
(3) by product: charcoal 9450 tons produced per year by biomass pyrogenation gasification stove, direct-combustion boiler reduces lime-ash 3536.87 tons.
3. increase economic benefit: the gross investment of building up 15MW biomass power plant according to this technique increases by 5,000,000.Biomass material 400 yuan/ton, raw material year increases expense 456.84 ten thousand yuan; Biomass charcoal powder 1200 yuan/ton, increases powdered carbon benefit 1134.00 ten thousand yuan; Boiler ash 50 yuan/ton, lime-ash reduces income 17.68 ten thousand yuan; Add up to this technique additional income 677.16 ten thousand yuan, runing 1 year is that recoverable fully invested earns a profit 177.16 ten thousand yuan.
The above embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determine.
Claims (9)
1. a system for the combustion-supporting direct-combustion boiler technique of pyrolysis gas of biomass, is characterized in that: comprise biomass pyrogenation gasification stove (10), high-temperature dust removal purification system (30), biogas combustion system (40), direct-combustion boiler system (50); The air outlet of described biomass pyrogenation gasification stove (10) is connected with the inlet mouth of high-temperature dust removal purification system (30), the escape pipe of high-temperature dust removal purification system (30) is connected with the inlet pipe of biogas combustion system (40), and biogas combustion system (40) is connected by the high-temperature fuel gas spout (43) being arranged at biogas combustion system (40) end with direct-combustion boiler system (50).
2. the system of the combustion-supporting direct-combustion boiler technique of a kind of pyrolysis gas of biomass according to claim 1, it is characterized in that: the system of the combustion-supporting direct-combustion boiler technique of described pyrolysis gas of biomass also comprises biomass charcoal gathering system (20), described biomass charcoal gathering system (20) is connected by the charcoal spiral (11) that goes out being arranged at biomass pyrogenation gasification stove (10) bottom with biomass pyrogenation gasification stove (10).
3. the system of the combustion-supporting direct-combustion boiler technique of a kind of pyrolysis gas of biomass according to claim 1 and 2, it is characterized in that: described high-temperature dust removal purification system (30) comprises one-level high-temperature dust removal equipment (31) and secondary high-temperature dust removal equipment (32), the air outlet of one-level high-temperature dust removal equipment (31) is connected with the inlet mouth of secondary high-temperature dust removal equipment (32).
4. the system of the combustion-supporting direct-combustion boiler technique of a kind of pyrolysis gas of biomass according to claim 3, it is characterized in that: described biogas combustion system (40) comprises high-temperature fuel gas blower fan (41), biomass gas burner (42) and high-temperature fuel gas spout (43), high-temperature fuel gas blower fan (41) connects secondary high-temperature dust removal treating plant (32) and biomass gas burner (42) respectively, and biomass gas burner (42) is connected by high-temperature fuel gas spout (43) with direct-combustion boiler system (50).
5. the system of the combustion-supporting direct-combustion boiler technique of a kind of pyrolysis gas of biomass according to claim 4, it is characterized in that: described direct-combustion boiler system (50) comprises direct-combustion boiler (51), and described high-temperature fuel gas spout (43) is arranged at the lowermost end of direct-combustion boiler (51) sidewall.
6. use the method for the combustion-supporting direct-combustion boiler process system of a kind of pyrolysis gas of biomass as claimed in claim 5, it is characterized in that, comprise the following steps:
(1) biomass are gasified through biomass pyrogenation gasification stove (10);
(2) pyrolysis gas of biomass pyrogenation gasification stove (10) output enters high-temperature dust removal purification system (30) and carries out purifying treatment;
(3) pyrolysis gas of biomass after purifying treatment sprays into direct-combustion boiler (51) from the high-temperature fuel gas spout (43) of biogas combustion system (40).
7. the method for the combustion-supporting direct-combustion boiler process system of a kind of pyrolysis gas of biomass according to claim 6, it is characterized in that: step (1) described biomass are after biomass pyrogenation gasification stove (10) gasification, and the ashes of generation carries out collecting through biomass charcoal gathering system (20), canned, control of dust.
8. the method for the combustion-supporting direct-combustion boiler process system of a kind of pyrolysis gas of biomass according to claim 6, is characterized in that: the heat of the described pyrolysis gas of biomass after purifying treatment of step (3) is no more than 30% of direct-combustion boiler (51) heat.
9. the method for the combustion-supporting direct-combustion boiler process system of a kind of pyrolysis gas of biomass according to claim 6, is characterized in that: the speed that sprays into that the described pyrolysis gas of biomass after purifying treatment of step (3) sprays into direct-combustion boiler (51) from the high-temperature fuel gas spout (43) of biogas combustion system (40) is 25 ~ 35m/s.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578961A (en) * | 2018-11-12 | 2019-04-05 | 北京国电龙源环保工程有限公司 | A kind of gasification of biomass coupling direct combustion power generation system and method |
| CN111363590A (en) * | 2018-12-26 | 2020-07-03 | 赫普科技发展（北京）有限公司 | Thermal power plant carbon emission reduction system and carbon emission reduction control method |
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