CN105925287A - Quick coal pyrolysis reactor - Google Patents
Quick coal pyrolysis reactor Download PDFInfo
- Publication number
- CN105925287A CN105925287A CN201610431199.2A CN201610431199A CN105925287A CN 105925287 A CN105925287 A CN 105925287A CN 201610431199 A CN201610431199 A CN 201610431199A CN 105925287 A CN105925287 A CN 105925287A
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- CN
- China
- Prior art keywords
- reactor
- filter plate
- sidewall
- granular bed
- wallboard
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/18—Modifying the properties of the distillation gases in the oven
Abstract
The invention relates to a quick coal pyrolysis reactor, comprising: a reactor body; a particle moving bed comprising side panels and two wall panels fixed to the sidewall of the reactor body, and therefore the side panels, the two wall panels and the sidewall define a cavity of the particle moving bed. The particle moving bed is arranged on the upper portion of the reactor body, reducing pyrolytic oil-gas temperature and accordingly condensing heavy tar component from pyrolytic oil-gas; therefore, dust content of the pyrolytic oil-gas is reduced, light components in tar are also increased, and quality of the tar is accordingly improved.
Description
Technical field
The present invention relates to pyrolysis of coal technical field, be specifically related to a kind of coal fast pyrolysis reactor.
Background technology
China is in industrialization, urbanization fast development period.In this course, the public is to life
Bioplasm amount, living environment, city situation etc. propose the highest standard, life style and consumer
Formula there occurs more and more significant change.The expansion of living space, the sustainable growth of automobile pollution,
And the derived demand formed on this basis will become the main dynamic of economic and social sustainable development
Power.This will cause a series of changes of economic structure, also will bring the sustainable growth of total energy consumption,
The particularly growth to oil and natural gas consumption.Chinese energy the name of the game is petroleum resources shortage,
Key issue is the degree that the demand to petroleum gas can undertake considerably beyond Domestic Resources.Coalification
Work industry is the Basic Ways that coal is converted to liquid fuel, gaseous fuel and industrial chemicals, can be
Crucial energy field ensures the degree of self-sufficiency.The pyrolytic process of coal may be generally generated combustible gas, tar
With three class output objects such as semicokes (or coke), the difference of pyrolytic process, the ratio of three series products has
Bigger difference, and have influence on final value of the product and the impact on energy supply structure.
Modern Coal-based Chemical is the high-efficiency cleaning trans-utilization realizing the carbon-containing fuels such as low-order coal, develops
Multiple comprehensive coal chemical technology, as pyrolysis-burning decoupling, the decoupling of pyrolysis-chemicals, pyrolysis-gasification solve
Coupling etc., but really realize industrialized few, industrialized during encounter various technical barrier.
The most especially with pyrolysis reactor design, subsequent purification process technique especially prominent.
At present, the main type of furnace that carbon-containing fuel (coal, oil shale, living beings etc.) is pyrolyzed have Fushun stove,
The big profit of Galoter stove and Australia of the husky Leah of three river side's stoves, the solid heat carrier retort of Dalian University of Science & Engineering, love
Sub-ATP stove etc..
The pyrolysis oil gas produced during using above-mentioned pyrolysis oven pyrolysis fine coal, complicated component, heavy
Tar component is many, and dust content is big, dust is in irregular shape, and gas temperature is high, causes pyrolysis coke breeze
Undesirable with pyrolysis oil gas ON-LINE SEPARATION effect, cause ash content in pyrolysis system fluctuation of service, tar
Content is high, hinders the process of industrialization of pulverized coal pyrolysis technology.Therefore, dedusting technology in pyrolytic process
Develop into one of key issue in low-order coal pyrolysis course of industrialization.
Summary of the invention
In order to solve the problems referred to above, the present invention proposes a kind of coal fast pyrolysis reactor, and this reactor drops
Dust content in the pyrolysis oil gas that low reactor produces, reduces subsequent high temperature pyrolysis of coal oil gas Quench tar
In dust content, make material be heated evenly.
The invention provides a kind of coal fast pyrolysis reactor.It is said that in general, the coal Rapid Thermal of the present invention
Solving reactor is heat accumulating type descending-bed reactor, and described reactor includes:
Reactor body；
Granular bed, described granular bed includes:
Side panel, two wallboards being fixed on the sidewall of described reactor body, the most described side
Plate, said two wallboard and described sidewall limit the cavity of described granular bed, and described particle moves
The top of bed is open, and described side panel is porous plate, and telescopic valve, is arranged in institute
State the bottom of granular bed, as the end of described granular bed；
Pyrolysis oil gas vent it is provided with on sidewall between the fixed position of described wallboard.
According to one embodiment of the invention, described granular bed farther includes filter plate, described
Filter plate is arranged between said two wallboard and relative with described pyrolysis oil gas vent, thus in described filter
Air chamber is limited, institute between sidewall between plate, said two wallboard and the fixed position of described wallboard
Stating filter plate is porous plate.
According to one embodiment of the invention, described granular bed farther includes filter plate, described
Filter plate is arranged on described pyrolysis oil gas outlet, by described pyrolysis oil gas vent and described granular bed
Isolation, described filter plate is porous plate.
According to one embodiment of the invention, the aperture of described filter plate is 0～0.1mm, the density in hole
For area hole count no less than 50～5000/cm2。
According to one embodiment of the invention, described side panel aperture is 0～0.05mm, the density in hole
For area hole count no less than 500～5000/cm2。
According to one embodiment of the invention, described valve is plate body, fixing at described wallboard
Sidewall between position have elongated hole, described valve is telescopic is installed on described elongated hole.
According to one embodiment of the invention, described valve is push-pull valve, wherein said push-pull valve
Handwheel outside through inwall by described reactor body, thus make the flashboard conduct of described push-pull valve
The bottom of described granular bed.
The present invention arranges granular bed on reactor body top, it is thus achieved that multiple benefit.
Such as, before high-temperature coal pyrolysis oil gas goes out pyrolysis oven, the thin dirt in pyrolysis oil gas is trapped in heat
In solution stove, thus effectively reduce the dustiness of pyrolysis gas.Granular bed is placed in pyrolysis oil gas go out
Mouthful, during raw material enters reactor body, part material enters granular bed and at particle
Decline in moving bed.Can be reduced in pyrolysis oil gas by cold coal and high-temperature coal pyrolysis hydrocarbons contact
Dust content, reduction high-temperature coal pyrolysis oil temperature, absorbed portion condensed tar, particularly, part
The condensation of (40～60%) heavy tar returns pyrolysis oven with pyrolysis feed, thus increases the lightweight in tar
Component, which thereby enhances the quality of tar.
For the ease of describing, in this article, term " coal fast pyrolysis reactor ", " heat accumulating type is descending
Bed reactor ", " pyrolysis oven " be used interchangeably.
Accompanying drawing explanation
Fig. 1 is coal fast pyrolysis reactor structural representation of the present invention；
Fig. 2 is the granular bed one embodiment top view in the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the detailed description of the invention of the present invention is carried out more detailed
Explanation, so as to the advantage being more fully understood that the solution of the present invention and various aspects thereof.But,
Specific embodiments described below and embodiment are only descriptive purposes rather than to the present invention
Limit.
As it is shown in figure 1, coal fast pyrolysis reactor structural representation of the present invention, this reactor includes:
Reactor body 1, heat accumulation type radiant tube 2, granular bed 3.
Coal fast pyrolysis reactor of the present invention is heat accumulating type descending-bed reactor, reactor body 1
For pyrolytic reaction container.Feed(raw material)inlet is offered at the top of pyrolytic reaction container, is provided with heat on sidewall
Solve oil gas vent.
Heat accumulation type radiant tube 2 is arranged in reactor body 1, and heat accumulation type radiant tube 2 is along reactor originally
The short transverse multi-tier arrangement of body 1, arranges many heat accumulating type spokes the most parallel to each other for every layer
Penetrate pipe 2.Owing to using multilayer heat accumulation type radiant tube 2 heat supply, reaction system simple in construction, easy to operate,
Heating effect is good, uniformity of temperature profile.Every layer of heat accumulation type radiant tube and adjacent bilevel heat accumulating type
Radiant tube 2 short transverse parallel to each other and along reactor body 1 is interspersed.Thus, can be notable
Improve the pyrolysis efficiency of reactor, thus improve the output capacity of product.
Heat accumulation type radiant tube 2 can use unidirectional regenerative gas radiant tube, and i.e. passing through radiant tube body will
The heat energy that fuel gas buring produces comes out in the way of radiation and carries out heat supply.Concrete according to the present invention
Embodiment, heat accumulation type radiant tube 2 can be provided with gas control valve (not shown).Thus, pass through
Control to enter the air of radiant tube, gas quantity and proportioning thereof, control radiant tube surface temperature, control
React temperature required field, it is achieved the accurate temperature controlling to gasification, such that it is able to significantly improve material
Pyrolysis efficiency.Radiation combustion inner pipe produce high-temperature flue gas, through with enter radiant tube low temperature control heat exchange,
Reduce exhaust gas temperature, improve efficiency of combustion.The fuel gas entrance of heat accumulation type radiant tube also can enough receive
The combustible gas produced in pyrolysis gas processing system, it is achieved self-heating, improves the utilization rate of product.
Granular bed 3 is fixed on the sidewall of pyrolytic reaction vessel 1, and will be pyrolyzed oil gas vent
Cover, of the present invention cover, refer to that granular bed will pyrolysis oil gas vent and reactor inner chamber
Isolation.Pyrolysis oil gas, after granular bed dedusting, is discharged reaction vessel body 1 by pyrolysis oil gas vent
Outward.
Fig. 2 is the top view of granular bed one embodiment in the present invention.As in figure 2 it is shown, particle
Moving bed 3 is arranged on the sidewall of reactor body 1.In the present embodiment, granular bed 3 wraps
Include wallboard 301, side panel 302, filter plate 303 and valve 304.
Two wallboards 301 are separately fixed on the sidewall of reactor body 1.For convenience of explanation, special
Refer to that the sidewall between the fixed position of sidewall at two wallboards is referred to as " partial sidewall ".Pyrolysis
Oil gas vent 4 is arranged in this " partial sidewall ", i.e. on the sidewall between the fixed position of wallboard
It is provided with pyrolysis oil gas vent 4.
Side panel 302 is fixed in the middle of two wallboards 301.Two wallboards 301, side panel 302 and anti-
Answering the partial sidewall of device body 1 is the cylindrical body of both ends open, around the chamber defining granular bed
Body.This cavity opens up and down, forms the passage that raw material falls.In other words, granular bed 3
Top is open upper shed, as particle entrance.It is provided with can stretch in the bottom of granular bed 3
The valve 304 of contracting, by controlling the aperture of valve 304, controls discharging speed.
Valve 304 is a plate body, suitable under " partial sidewall " of previous reaction device body 1
Position arranges elongated hole, and valve 304 is telescopic to be installed in elongated hole.Direction outside reactor body
Draw valve 304, the raw material falling speed in granular bed cavity can be accelerated；In reactor body
Direction pushes away valve 304, can slow down the raw material falling speed in granular bed cavity.Operating personnel can depend on
Need to carry out autonomous operation according to production.
Side panel 302 is porous plate, and side panel 302 aperture is 0～0.05mm, and the density in hole is area
Hole count is no less than 500～5000/cm2.Pyrolysis oil gas enters granular bed 3 through side panel 302
In cavity, discharged outside reactor body 1 by pyrolysis oil gas vent 4 after its interior raw material filters.
Granular bed 3 farther includes filter plate 304, and filter plate 304 is arranged between two wallboards 301 also
And relative with pyrolysis oil gas vent 4, filter plate 304 is by pyrolysis oil gas vent 4 and granular bed 3
Cavity is isolated.Filter plate 304 is porous plate, and the aperture of filter plate 304 is 0～0.1mm, and the density in hole is
Area hole count is no less than 50～5000/cm2.Pyrolysis oil gas is by filter plate 304, by pyrolysis oil gas vent
Discharge reactor body 1 external.
The sidewall spacers of filter plate 304 and reactor body 1 is arranged, by 304, two wallboards 301 of filter plate
Air chamber 305 is surrounded with sidewall.So, when pyrolysis oil gas is entered air chamber 305 by the cavity of granular bed,
All participation work of filter plate 304, it is to avoid filter plate leads to because of the part of only corresponding pyrolysis oil gas vent 4
Gas, uses the excessive pore causing this part to be distributed of frequency to be blocked by tar too early and scrap, extends
In the service life of filter plate, reducing stops work changes the frequency of filter plate, improves production efficiency.
Filter plate also has another set-up mode: filter plate is arranged at pyrolysis oil gas vent 4, will pyrolysis
Oil gas vent 4 is isolated with granular bed 3.In general, the pyrolysis oil gas vent of reactor with
One section of pipe joint, convenient and transmission gas pipeline is connected, and the filter plate of the present invention is arranged on pyrolysis oil gas
In the pipe joint of outlet, it is possible to reduce filter plate, the material consumption of dividing plate.
The feed(raw material)inlet of reactor of the present invention is arranged on reactor body 1 central upper portion position, facilitates thing
Material enters and free-falling.Feed(raw material)inlet can connect feed hopper and feeding screw.Semicoke outlet is arranged
In reactor body 1 lower central position, it is simple to semicoke is quickly moved out reactor body 1.
The course of work using coal fast pyrolysis reactor of the present invention to carry out low-order coal pyrolysis is as follows:
Raw material (low-order coal particle) is added by the feed(raw material)inlet of reactor body central upper portion position,
During raw material falls, part low-order coal particle is entered the cavity of granular bed by particle entrance
In, under the regulation of telescopic valve, fall according to the speed set.Low-order coal particle is in reaction
Device this most internal is pyrolyzed, produce the pyrolysis oil gas with impurity, pyrolysis oil gas in granular bed,
After low-order coal particle filtering by decline, discharge outside reactor body.
A kind of coal fast pyrolysis reactor disclosed by the invention, the built-in particle in reactor body top moves
Bed dedusting, feed stock for blast furnace is partially into granular bed, and pyrolysis oil gas effectively drops through granular bed
Dustiness in low pyrolysis gas, reduces follow-up tar pretreated cost, reduces pyrolysis of coal simultaneously
Oil gas temperature, makes part heavy tar condense, and reduces heavy tar yield.
Embodiment
Feed coal enters reactor from feed(raw material)inlet, and part material coal enters granular bed, by control
Valve controlling feed coal bottom granular bed processed moves at the translational speed within grain bed, particle
Speed is preferably less than 1m/s.High temperature pyrolysis oil gas passes granular bed, is cooled to 300～400 DEG C, portion
Heavy tar condensation is divided to return pyrolysis oven with pyrolysis feed.Pyrolysis oil gas dustiness is reduced to
0.23g/Nm3, there is no granular bed dustiness 5.5g/Nm3。
It should be noted that the embodiment above by reference to described by accompanying drawing is only in order to illustrate rather than
Limit the scope of the present invention, it will be understood by those within the art that, without departing from the present invention's
The amendment on the premise of spirit and scope carried out the present invention or equivalent, all should contain at this
Within the scope of bright.
Claims (7)
1. a coal fast pyrolysis reactor, it is characterised in that described reactor includes:
Reactor body；
Granular bed, described granular bed includes:
Side panel, two wallboards being fixed on the sidewall of described reactor body, thus described
Side panel, said two wallboard and described sidewall limit the cavity of described granular bed,
The top of described granular bed is open,
Described side panel is porous plate,
And telescopic valve, it is arranged in the bottom of described granular bed；
Pyrolysis oil gas vent it is provided with on sidewall between the fixed position of described wallboard.
Coal fast pyrolysis reactor the most according to claim 1, it is characterised in that described particle
Moving bed farther includes filter plate, described filter plate arrange between said two wallboard and with described pyrolysis
Oil gas vent is relative, thus described filter plate, said two wallboard and described wallboard fixed position it
Between sidewall between limit air chamber, described filter plate is porous plate.
3. coal fast pyrolysis reactor as claimed in claim 1, it is characterised in that described particle moves
Movable bed farther includes filter plate, and described filter plate is arranged on described pyrolysis oil gas outlet, and described filter plate is
Porous plate.
4. the coal fast pyrolysis reactor as described in Claims 2 or 3 is arbitrary, it is characterised in that institute
The aperture stating filter plate is 0～0.1mm, and the density in hole is that area hole count is no less than 50～5000/cm2。
5. coal fast pyrolysis reactor as claimed in claim 1, it is characterised in that described side panel
Aperture is 0～0.05mm, and the density in hole is that area hole count is no less than 500～5000/cm2。
6. coal fast pyrolysis reactor as claimed in claim 1, it is characterised in that described valve is
Plate body, the sidewall between the fixed position of described wallboard have elongated hole, described valve can be stretched
That contracts is installed on described elongated hole.
7. according to the coal fast pyrolysis reactor according to any one of claim 1-6, it is characterised in that
Described valve is push-pull valve, and the handwheel of wherein said push-pull valve is passed by outside described reactor body
Inwall, thus makes the flashboard bottom as described granular bed of described push-pull valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610431199.2A CN105925287A (en) | 2016-06-16 | 2016-06-16 | Quick coal pyrolysis reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610431199.2A CN105925287A (en) | 2016-06-16 | 2016-06-16 | Quick coal pyrolysis reactor |
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| Publication Number | Publication Date |
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| CN105925287A true CN105925287A (en) | 2016-09-07 |
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ID=56830151
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610431199.2A Pending CN105925287A (en) | 2016-06-16 | 2016-06-16 | Quick coal pyrolysis reactor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106479577A (en) * | 2016-12-06 | 2017-03-08 | 北京神雾环境能源科技集团股份有限公司 | A kind of system and method for coal sub-prime cascade utilization |
| CN106635095A (en) * | 2016-12-06 | 2017-05-10 | 北京神雾环境能源科技集团股份有限公司 | System and method for treating pulverized coal and calcium-based raw material |
| CN108014597A (en) * | 2018-01-17 | 2018-05-11 | 常州大学 | Controllable type adsorption tower discharging mouth structure and discharge method |
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| CN202942783U (en) * | 2012-12-13 | 2013-05-22 | 成都源创环保工程有限公司 | Perforated plate opening and closing device of moving bed adsorption tower |
| CN202968480U (en) * | 2012-12-18 | 2013-06-05 | 中国科学院过程工程研究所 | Hierarchical coal pyrolysis reactor for fluidized bed |
| CN105505420A (en) * | 2016-01-12 | 2016-04-20 | 北京神雾环境能源科技集团股份有限公司 | Rapid pyrolysis reactor |
| CN205710595U (en) * | 2016-06-16 | 2016-11-23 | 北京神雾环境能源科技集团股份有限公司 | A kind of coal fast pyrolysis reactor |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1870444A2 (en) * | 2006-06-20 | 2007-12-26 | Walter Kuntschar | Method for cleaning gases from a woodgas powered vehicle and filter therefore |
| CN202942783U (en) * | 2012-12-13 | 2013-05-22 | 成都源创环保工程有限公司 | Perforated plate opening and closing device of moving bed adsorption tower |
| CN202968480U (en) * | 2012-12-18 | 2013-06-05 | 中国科学院过程工程研究所 | Hierarchical coal pyrolysis reactor for fluidized bed |
| CN105505420A (en) * | 2016-01-12 | 2016-04-20 | 北京神雾环境能源科技集团股份有限公司 | Rapid pyrolysis reactor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106479577A (en) * | 2016-12-06 | 2017-03-08 | 北京神雾环境能源科技集团股份有限公司 | A kind of system and method for coal sub-prime cascade utilization |
| CN106635095A (en) * | 2016-12-06 | 2017-05-10 | 北京神雾环境能源科技集团股份有限公司 | System and method for treating pulverized coal and calcium-based raw material |
| CN108014597A (en) * | 2018-01-17 | 2018-05-11 | 常州大学 | Controllable type adsorption tower discharging mouth structure and discharge method |
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Address after: 102200 Beijing City, Changping District science and Technology Park Chang Huai Lu No. 155 Applicant after: Shenwu science and technology group Limited by Share Ltd Address before: 102200 Beijing City, Changping District science and Technology Park Chang Huai Lu No. 155 Applicant before: Beijing Shenwu Environment Energy Technology Group Co., Ltd. |
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Application publication date: 20160907 |