CN110240915A - A kind of biomass and coal copyrolysis and gasification co-generation system and pyrolysis reactor and its application - Google Patents
A kind of biomass and coal copyrolysis and gasification co-generation system and pyrolysis reactor and its application Download PDFInfo
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- CN110240915A CN110240915A CN201910501133.XA CN201910501133A CN110240915A CN 110240915 A CN110240915 A CN 110240915A CN 201910501133 A CN201910501133 A CN 201910501133A CN 110240915 A CN110240915 A CN 110240915A
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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
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/04—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of powdered coal
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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
- C10J3/46—Gasification of granular or pulverulent flues in suspension
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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
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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
- C10J2300/0916—Biomass
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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
- C10J2300/093—Coal
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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
- C10J2300/0953—Gasifying agents
-
- 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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- Engineering & Computer Science (AREA)
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- Processing Of Solid Wastes (AREA)
Abstract
The invention belongs to the copyrolysis technical fields of biomass and coal, and in particular to a kind of biomass and coal copyrolysis and gasification co-generation system and pyrolysis reactor and its application.It include: pulverizer, coal pulverizer, mixer, drier, pyrolysis reactor, hot precipitator, cooler, device for dewatering tar, gasification reactor and boiler；Pulverizer, coal pulverizer are connected to mixer；Mixer, drier, pyrolysis reactor, hot precipitator, cooler, boiler are sequentially connected to；The discharge port of pyrolysis reactor, the discharge port of temperature deduster are connected to the feed inlet with gasification reactor, cooler, device for dewatering tar, gasification reactor are sequentially communicated, device for dewatering tar is connected to the feed inlet of gasification reactor, and the exhanst gas outlet in boiler is successively connected to gasification reactor, pyrolysis reactor, drier by pipeline.System of the invention can be realized reasonable energy supply and prepare, as far as possible the energy supply of realization internal system, reduce the dependence to extra power.
Description
Technical field
The invention belongs to the copyrolysis technical fields of biomass and coal, and in particular to a kind of biomass and coal copyrolysis and gas
Change co-generation system and pyrolysis reactor and its application.
Background technique
It is only intended to increase understanding of the overall background of the invention for information disclosed in background of invention, without
It is existing well known to persons skilled in the art so to be considered as recognizing or imply that information composition has become in any form
Technology.
Since with continually developing to high-quality coal resource, low-order coal is due to rich reserves and is easy to develop and show
Advantage, and due to low-order coal big, the low equal a series of problems of calorific value that directly burn that there are dust, therefore using by the way of being pyrolyzed pairs
It carries out upgrading, it can be achieved that its clean utilization.Biomass is due to that can pass through the fixed CO of photosynthesis2, it is considered as a kind of zero carbon
The resource of discharge, and its combustion process has that alkali metal corrosion and moisture content are high, it is general using by the way of being pyrolyzed pairs
It is utilized.Currently, it is all relatively mature to individual coal or biomass pyrolytic and gasification research both at home and abroad, but for two
The application that person's copyrolysis regasifies is few.And biomass starts to be pyrolyzed at 300 DEG C or so, lower than the pyrolysis temperature of coal, produces first
The living radical of raw hydrogen-rich promotes the pyrolytic reaction of coal in conjunction with the free radical on coal surface.The pyrolytic process of the two is effective
Ground combines, and the synergistic effect being pyrolyzed using the two is realized its copyrolysis, is bound to that better effect can be obtained.Pyrolysis is raw
With the major issue of general character in substance and coal utilization technology.For example, Chinese patent literature 201410134860.4 discloses one
Kind heat pipe supplying heat formula is biomass fluid bed and coal copyrolysis system, the invention are biomass fluid bed total with coal using heat pipe supplying heat formula
Pyrolysis installation, main body are divided into two parts, and the above is pyrolysis oven, and here is combustion furnace；High-temperature heat pipe extends vertically through pyrolysis oven and combustion
Furnace is burnt, is endotherm section in combustion furnace one end, the heat that coal-char combustion is released is absorbed, is transmitted to pyrolysis oven then up；It is being pyrolyzed
One end of furnace is heat release section, releases heat for biomass and coal indirect thermal.
However, present inventors believe that existing some pyrolysis of coal technologies there are tar yield is low and tar in heavy asphalt
The high disadvantage of component, and although hydropyrolysis and catalytic pyrolysis can be improved the quality of thermal decomposition product, but expensive hydrogen feed
Become with complicated catalyst preparation process and restricts the key factor for reducing production cost；And biomass production has seasonality,
It is difficult to realize stablize supply, therefore is also difficult to run on a large scale.
Summary of the invention
For above-mentioned problem.The present invention is intended to provide a kind of biomass and coal copyrolysis and gasification co-generation system and pyrolysis
Reactor and its application.The system of the coal that the present invention designs and biomass copyrolysis can not only realize that reasonable energy supply is matched
System, the as far as possible energy supply of realization internal system, reduce the dependence to extra power；And it is higher using substance hydrogen-carbon ratio, it can be used as
The characteristics of hydrogen supply agent of pyrolysis of coal, realizes the mutual supplement with each other's advantages of coal and biomass in pyrolytic process.
An object of the present disclosure: a kind of biomass and coal copyrolysis and gasification co-generation system are provided.
Second purpose of the invention: the side that biomass and coal copyrolysis and coproduction of gasifying are carried out using the co-generation system is provided
Method.
Third purpose of the present invention: a kind of pyrolysis reactor for biomass and coal copyrolysis is provided.
4th purpose of the invention: the method for carrying out biomass and coal copyrolysis using the pyrolysis reactor is provided.
5th purpose of the invention: provide the biomass and coal copyrolysis and gasification co-generation system and pyrolysis reactor and
The application of the method.
For achieving the above object, the invention discloses following technical proposals:
Firstly, the present invention discloses a kind of biomass and coal copyrolysis and gasification co-generation system, comprising: pulverizer, coal pulverizer,
Mixer, drier, pyrolysis reactor, hot precipitator, cooler, device for dewatering tar, gasification reactor and boiler,
In:
The pulverizer, coal pulverizer are connected to mixer；The mixer, drier, pyrolysis reactor, high-temperature dust removal
Device, cooler, boiler are sequentially connected to；The discharge port of the pyrolysis reactor, warm deduster discharge port with and gasified reverse
The feed inlet of device is answered to be connected to, the cooler, device for dewatering tar, gasification reactor are sequentially connected to, and device for dewatering tar
It is connected to the feed inlet of gasification reactor, the exhanst gas outlet in the boiler is successively anti-with gasification reactor, pyrolysis by pipeline
Device, drier connection are answered, making the flue gas in boiler sequentially is respectively that these devices provide heat.
Secondly, the present invention discloses the method for carrying out biomass and coal copyrolysis and coproduction of gasifying using the co-generation system,
Include the following steps:
(1) biomass and coal are mixed, mixed object respectively after pulverizer and coal pulverizer processing into mixer
Material is dried into drier；
(2) material of step (1) after dry is entered into pyrolysis reactor and carries out pyrolytic reaction, obtain gas after pyrolysis
(raw coke oven gas) and solid product semicoke, wherein the gas enters in hot precipitator the semicoke powder for removing deentrainment, then gas
Body enters cooler, condenses out tar and phenol water impurity therein, then gas travels further into device for dewatering tar, makes
Tar is separated with phenol water, is burnt finally, the incoagulable gas being discharged from device for dewatering tar enters boiler as fuel；
Meanwhile the semicoke powder being obtained by filtration with the solid product semicoke and deduster is together as gasified raw material, with
The phenol water that device for dewatering tar obtains enters gasification reactor together and gas occurs as gasifying agent, the gasified raw material and gasifying agent
Change reaction；
(3) flue gas that boiler generates sequentially enters gasification reactor, pyrolysis reactor, drier, respectively these devices
Heat, the flue gas emission atmosphere after drier are provided.
As further technical solution, in step (1), the water content of material is made to be reduced to 5% or less after the drying.
As further technical solution, in step (2), the temperature of the pyrolytic reaction is 500-700 DEG C.
As further technical solution, in step (2), the gasification gas that the gasification reaction obtains can be used as production synthesis
Natural gas, and then for polygenerations systemes such as combustion power generation, heating.
As further technical solution, in step (2), the gasification gas that the gasification reaction obtains can also be purified for giving birth to
Produce the chemical products such as alcohols.
As further technical solution, in step (2), remaining a small amount of coke is made after overactivation after the gasification reaction
For active carbon, bio-feritlizer returning to the field can be used as, for cement etc..
Again, the present invention discloses a kind of pyrolysis reactor for biomass and coal copyrolysis, for substituting above-mentioned coproduction
Pyrolysis reactor in system, specifically, the pyrolysis reactor includes: reaction chamber, feed inlet, exhaust outlet, semicoke outlet, stirs
Mix propeller, driving device, external heating gas chamber, gas inlet, exhanst gas outlet, inlet channel and outlet passageway；Wherein: described
One end of reaction chamber is arranged in feed inlet；The exhaust outlet, semicoke outlet are arranged at the other end of reaction chamber, and exhaust outlet court
Upper setting, semicoke go out mouth down setting；The stirring propeller is located in reaction chamber, for the stirring to biomass and coal and pushes away
Into；The driving device is connected with stirring propeller, for providing power for stirring propeller；The external heating gas chamber package
Gap in the outer surface of reaction chamber, and between the two forms the channel passed through for flue gas；The gas inlet bifurcated forms more
The other end of a inlet channel, the inlet channel is connected to outside heating gas chamber, and inlet channel is made to form radial distribution；It is described
The opposite side of gas inlet is arranged in exhanst gas outlet, the distribution for connecting exhanst gas outlet and with the outlet passageway of external heating gas chamber
Form is identical as inlet channel, and inlet channel and outlet passageway are interspersed relative to the axis of external heating gas chamber.
As further technical solution, the driving device is speed regulating motor.
As further technical solution, the stirring propeller is screw rod, and the rotation and progradation of screw rod can make
Pyrolysis feed is constantly mixed and is separated during the reaction, is constantly contacting and separating with the inner wall of reaction chamber, is uniformly added with realizing
Heat, homogeneous reaction.
Thirdly, the present invention discloses the method for carrying out biomass and coal copyrolysis using the pyrolysis reactor, including such as
Lower step:
1) biomass and coal after being crushed drying enter reaction chamber from feed inlet as raw material, in the effect of stirring propeller
Lower raw material is constantly mixed, separates, and mobile to the other end of reaction chamber；Meanwhile raw material is provided in reaction chamber by heat source in heat
Heat pyrolysis, in pyrolytic process, the heat source enters inlet channel from gas inlet, enters after the shunting of inlet channel
Outside heating gas chamber heats reaction chamber, and then heat source enters outlet passageway, is discharged behind interflow through exhanst gas outlet；
2) the fugitive constituent gas that pyrolysis obtains is discharged through exhaust outlet, into subsequent dust removal process equipment；It is pyrolyzed remaining
Solid product semicoke is exported through semicoke and is discharged, and into subsequent gasification installation, is further reacted.
As further technical solution, in step (2), the heat source of the pyrolytic reaction can be selected from the combustion of coal or natural gas
Burn any one or a few in flue gas or other high-temp waste gas.
Finally, the present invention disclose the biomass and coal copyrolysis and gasification co-generation system, using the co-generation system into
Row biomass and coal copyrolysis and the method for coproduction of gasifying, for biomass and coal copyrolysis pyrolysis reactor and utilize institute
It states pyrolysis reactor and carries out application of the method for biomass and coal copyrolysis in energy field.
Compared with prior art, the present invention achieve it is following the utility model has the advantages that
(1) cascaded utilization of energy: the high-temperature flue gas that the present invention uses pyrolysis gas burning to generate is single for gasification, pyrolysis, drying
Member provides heat；Flue gas is initially used for the higher gasification reactor of temperature requirements, enters back into the pyrolytic reaction of moderate temperature demand
Device finally enters 200 DEG C of driers below of temperature requirements, realizes the cascade utilization of thermal energy.
(2) the phenol water that device for dewatering tar of the invention is separated does not need to be further processed, but directly makees
Enter gasification reactor for gasifying agent to be reacted, reduces the equipment and expense of phenol water process.
(3) on heating method, the present invention is by the way of the flue gas of Multi-flue outside, and the inlet channel for shunting
It is in staggered distribution with the outlet passageway for confluence, increases residence time of the heat source in external heating gas chamber, realize as far as possible
Spiral pyrolysis reactor is evenly heated；Meanwhile this structure can effectively solve the problem that raw material in pyrolytic process because being heated not
Uniformly cause the unstable problem of products collection efficiency.
(4) screw rod that the present invention uses can be made in the pyrolytic process of raw material by the rotation and progradation of screw rod
Pyrolysis feed is constantly mixed and is separated during the reaction, is constantly contacting and separating, is evenly heated with realizing, with reactor wall
Even reaction effectively avoids raw material from causing the unstable problem of products collection efficiency because uneven heating is even in pyrolytic process.
Detailed description of the invention
The Figure of description for constituting a part of the invention is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.
Fig. 1 is the biomass of the embodiment of the present invention 1 and the structural schematic diagram of coal copyrolysis and the co-generation system that gasifies.
Fig. 2 is the structural schematic diagram for biomass and the pyrolysis reactor of coal copyrolysis of the embodiment of the present invention 2.
Above-mentioned attached drawing acceptance of the bid note respectively represents: 1- pulverizer, 2- coal pulverizer, 3- mixer, 4- drier, 5- pyrolytic reaction
Device, 6- hot precipitator, 7- cooler, 8- device for dewatering tar, 9- gasification reactor, 10- boiler, 5.1- reaction chamber, 5.2-
Feed inlet, 5.3- exhaust outlet, the outlet of 5.4- semicoke, 5.5- stirring propeller, 5.6- driving device, heating gas chamber outside 5.7-,
5.8- gas inlet, 5.9- exhanst gas outlet, 5.10- inlet channel, 5.11- outlet passageway.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the present invention.Unless another
It indicates, all technical and scientific terms used herein has usual with general technical staff of the technical field of the invention
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to exemplary embodiments of the present invention.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
As previously mentioned, so electromagnetic-wave absorbent is general in actual application only to have electromagnetic wave absorption characteristic,
Without load bearing ability, more leisure opinion takes into account other excellent dynamic performances and static mechanical performance.Therefore, of the invention
It is proposed a kind of big damping electromagnetic Wave suction composite material of embedded co-curing and preparation method thereof；Now in conjunction with attached drawing and specific embodiment party
Formula is further illustrated the present invention.
Embodiment 1
A kind of biomass and coal copyrolysis and gasification co-generation system, with reference to Fig. 1 comprising: it is pulverizer 1, coal pulverizer 2, mixed
Clutch 3, drier 4, pyrolysis reactor 5, hot precipitator 6, cooler 7, device for dewatering tar 8, gasification reactor 9 and boiler
10, in which: the pulverizer 1, coal pulverizer 2 are connected to mixer 3；The mixer 3, drier 4, pyrolysis reactor 5, height
Warm deduster 6, cooler 7, boiler 10 are sequentially connected to；The discharge port of the discharge port of the pyrolysis reactor 5, warm deduster 6
Be connected to the feed inlet of gasification reactor 9, the cooler 7, device for dewatering tar 8, gasification reactor 9 sequentially connect
It is logical, and device for dewatering tar 8 is connected to the feed inlet of gasification reactor 9, the exhanst gas outlet in the boiler 10 pass through pipeline according to
Secondary to be connected to gasification reactor 9, pyrolysis reactor 5, drier 4, making the flue gas in boiler 10 is sequentially respectively these devices
Heat is provided.
Embodiment 2
A kind of pyrolysis reactor for biomass and coal copyrolysis, with reference to Fig. 2, the pyrolysis reactor includes: reaction
Room 5.1, feed inlet 5.2, exhaust outlet 5.3, semicoke outlet 5.4, stirring propeller 5.5, driving device 5.6, external heating gas chamber
5.7, gas inlet 5.8, exhanst gas outlet 5.9, inlet channel 5.10 and outlet passageway 5.11；Wherein: the feed inlet 5.2 is arranged
In one end of reaction chamber 5.1；The exhaust outlet 5.3, semicoke outlet 5.4 are arranged at the other end of reaction chamber 5.1, and exhaust outlet
5.3 are arranged upward, and semicoke outlet 5.4 is arranged downward；The stirring propeller 5.5 is located in reaction chamber 5.1, for biomass
With the stirring and propulsion of coal；The driving device 5.6 and stirring propeller 5.5 connect, dynamic for providing for stirring propeller 5.5
Power；The external heating gas chamber 5.7 is wrapped in the outer surface of reaction chamber 5.1, and gap between the two forms and passes through for flue gas
Channel；5.8 bifurcated of gas inlet forms multiple inlet channels 5.10, and the other end of the inlet channel 5.10 and outside add
Hot gas room 5.7 is connected to, and inlet channel 5.10 is made to form radial distribution；Gas inlet 5.8 is arranged in the exhanst gas outlet 5.9
Opposite side, distribution form and inlet channel for connecting exhanst gas outlet 5.9 and with the outlet passageway 5.11 of external heating gas chamber 5.7
5.10 is identical, and inlet channel 5.10 and outlet passageway 5.11 are interspersed relative to the axis of external heating gas chamber 5.7.
Embodiment 3
A kind of biomass and coal copyrolysis and gasification co-generation system, with embodiment 1, difference is: the pyrolysis reactor 5
For the pyrolysis reactor as described in example 2 for biomass and coal copyrolysis.
Embodiment 4
A kind of pyrolysis reactor for biomass and coal copyrolysis, the driving device 5.1 are speed regulating motor.It is described to stir
Mixing propeller is screw rod, and the rotation and progradation of screw rod can make pyrolysis feed constantly mix and separate during the reaction,
It is constantly contacting and separating, is evenly heated with realizing, homogeneous reaction with the inner wall of reaction chamber.
Embodiment 5
The method for carrying out biomass and coal copyrolysis and coproduction of gasifying using co-generation system described in embodiment 1, including such as
Lower step:
(1) biomass and coal are mixed, after mixing respectively after pulverizer 1 and coal pulverizer 2 are handled into mixer 3
Material enter drier 4 and be dried；
(2) material of step (1) after dry is entered into pyrolysis reactor 5 and carries out pyrolytic reaction, obtain gas after pyrolysis
(raw coke oven gas) and solid product semicoke, wherein the gas enters in hot precipitator 6 the semicoke powder for removing deentrainment, then
Gas enters cooler 7, condenses out tar and phenol water impurity therein, then gas travels further into device for dewatering tar
8, separate tar with phenol water, finally, the incoagulable gas being discharged from device for dewatering tar 8 as fuel enter boiler 10 into
Row burning；
Meanwhile the semicoke powder being obtained by filtration with the solid product semicoke and deduster is together as gasified raw material, with
The phenol water that device for dewatering tar 8 obtains enters the generation of gasification reactor 9 as gasifying agent, the gasified raw material and gasifying agent together
Gasification reaction；With reference to Fig. 1, the gasification gas that gasification reaction obtains can be used as producing synthetic natural gas, and then for combustion power generation, confession
It is warm to wait polygenerations systemes, it can also purify for producing the chemical products such as alcohols, remaining a small amount of coke can be used for activating system after gasification
Active carbon, as bio-feritlizer returning to the field, and for cement etc.；
(3) boiler 10 provides heat demand mainly for generation of flue gas for whole system, generates under the premise of meeting heat demand
A small amount of steam be used for heat supply or power generation, the flue gas that boiler 10 generates sequentially enters gasification reactor 9, pyrolysis reactor 5, dry
Device 4, respectively these devices provide heat, and (flue gas is initially used for the higher gasification reactor of temperature requirements, enters back into middle isothermal
The pyrolysis reactor of degree demand finally enters 200 DEG C of driers below of temperature requirements), flue-gas temperature declines after drier 4
To 100 DEG C or so, atmosphere is then drained into.
Embodiment 6
The method for carrying out biomass and coal copyrolysis using pyrolysis reactor as described in example 2, includes the following steps:
1) biomass and coal after being crushed drying enter reaction chamber 5.1 from feed inlet 5.2 as raw material, in stirring propeller
Raw material is constantly mixed, separates under the action of 5.5, and mobile to the other end of reaction chamber 5.1；Meanwhile raw material is being reacted in heat
The heat that room 5.1 is provided by hot fume is pyrolyzed, and in pyrolytic process, the hot fume enters inlet channel from gas inlet 5.8
5.10, external heating gas chamber 5.7 is entered after the shunting of inlet channel 5.10, reaction chamber 5.1 is heated, then hot cigarette
Gas enters outlet passageway 5.11, is discharged behind interflow through exhanst gas outlet 5.9；
2) the fugitive constituent gas that pyrolysis obtains is discharged through exhaust outlet 5.3, into subsequent dust removal process equipment；Pyrolysis is remaining
Solid product semicoke further react through 5.4 discharge of semicoke outlet into subsequent gasification installation.
The above description is only a preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of biomass and coal copyrolysis and gasification co-generation system characterized by comprising pulverizer, coal pulverizer, mixing
Device, drier, pyrolysis reactor, hot precipitator, cooler, device for dewatering tar, gasification reactor and boiler, in which:
The pulverizer, coal pulverizer are connected to mixer；The mixer, drier, pyrolysis reactor, hot precipitator,
Cooler, boiler are sequentially connected to；The discharge port of the pyrolysis reactor, warm deduster discharge port with and gasification reactor
Feed inlet connection, the cooler, device for dewatering tar, gasification reactor are sequentially connected to, and device for dewatering tar and gas
The feed inlet connection for changing reactor, exhanst gas outlet in the boiler by pipeline successively with gasification reactor, pyrolysis reactor,
Drier connection.
2. the method for carrying out biomass and coal copyrolysis and coproduction of gasifying using co-generation system described in claim 1, feature
It is, includes the following steps:
(1) biomass and coal are mixed respectively after pulverizer and coal pulverizer processing into mixer, mixed material into
Enter drier to be dried；
(2) material of step (1) after dry is entered into pyrolysis reactor and carries out pyrolytic reaction, obtain gas and solid after pyrolysis
Product semicoke, wherein the gas enters in hot precipitator the semicoke powder for removing deentrainment, and then gas enters cooler,
Condense out tar and phenol water impurity therein, then gas travels further into device for dewatering tar, makes tar and phenol moisture
From burning finally, the incoagulable gas being discharged from device for dewatering tar enters boiler as fuel；
Meanwhile the semicoke powder being obtained by filtration with the solid product semicoke and deduster is together as gasified raw material, with tar
The phenol water that dehydration device obtains enters gasification reactor together and gasified reverse occurs as gasifying agent, the gasified raw material and gasifying agent
It answers；
(3) flue gas that boiler generates sequentially enters gasification reactor, pyrolysis reactor, drier, and respectively these devices provide
Heat, the flue gas emission atmosphere after drier.
3. method according to claim 2, which is characterized in that in step (1), reduce the water content of material after the drying
To 5% or less.
4. method as claimed in claim 2 or claim 3, which is characterized in that in step (2), the temperature of the pyrolytic reaction is 500-
700℃；
Preferably, in step (2), the gasification gas that the gasification reaction obtains can be used as producing synthetic natural gas, and then for firing
Burn the polygenerations systemes such as power generation, heating；
Preferably, in step (2), the gasification gas that the gasification reaction obtains can also be purified for producing the chemical products such as alcohols.
5. method as claimed in claim 2 or claim 3, which is characterized in that remaining a small amount of after the gasification reaction in step (2)
Coke is used as active carbon after overactivation.
6. a kind of pyrolysis reactor for biomass and coal copyrolysis, which is characterized in that the pyrolysis reactor includes: reaction
Room, feed inlet, exhaust outlet, semicoke outlet, stirring propeller, driving device, external heating gas chamber, gas inlet, exhanst gas outlet,
Inlet channel and outlet passageway；Wherein:
One end of reaction chamber is arranged in the feed inlet；The exhaust outlet, semicoke outlet are arranged at the other end of reaction chamber, and
Exhaust outlet is arranged upward, and semicoke goes out mouth down setting；The stirring propeller is located in reaction chamber；The driving device and stirring
Propeller connection；The external heating gas chamber is wrapped in the outer surface of reaction chamber, and gap between the two forms and leads to for flue gas
The channel crossed；The gas inlet bifurcated forms multiple inlet channels, and the other end of the inlet channel and external heating gas chamber connect
It is logical, so that inlet channel is formed radial distribution；The opposite side of gas inlet is arranged in the exhanst gas outlet, for connecting exhanst gas outlet
With and external heating gas chamber outlet passageway distribution form it is identical as inlet channel, and inlet channel and outlet passageway relative to
The axis of outside heating gas chamber is interspersed.
7. being used for the pyrolysis reactor of biomass and coal copyrolysis as claimed in claim 6, which is characterized in that the driving dress
It is set to speed regulating motor；Preferably, the stirring propeller is screw rod.
8. the method for carrying out biomass and coal copyrolysis using pyrolysis reactor described in claim 6 or 7, which is characterized in that
Include the following steps:
1) biomass and coal after being crushed drying enter reaction chamber from feed inlet as raw material, former under the action of stirring propeller
Material is constantly mixed, separates, and mobile to the other end of reaction chamber；Meanwhile the heat that raw material is provided in reaction chamber by heat source in heat
Calorimetric solution, in pyrolytic process, the heat source enters inlet channel from gas inlet, and outside is entered after the shunting of inlet channel
Heating gas chamber heats reaction chamber, and then heat source enters outlet passageway, is discharged behind interflow through exhanst gas outlet；
2) the fugitive constituent gas that pyrolysis obtains is discharged through exhaust outlet, into subsequent dust removal process equipment；It is pyrolyzed remaining solid
Product semicoke is exported through semicoke and is discharged, and into subsequent gasification installation, is further reacted.
9. method according to claim 8, which is characterized in that in step (2), the heat source of the pyrolytic reaction is selected from coal or day
The combustion product gases of right gas or any one or a few in other high-temp waste gas.
10. biomass as described in claim 1 is with coal copyrolysis and gasification co-generation system and/or as claim 2-5 is any
Method described in and/or the pyrolysis reactor and/or such as biomass and coal copyrolysis as claimed in claims 6 or 7
Application of the method described in claim 8 or 9 in energy field.
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Application publication date: 20190917 |