CN105316014B - It is pyrolyzed the method and system of biomass - Google Patents
It is pyrolyzed the method and system of biomass Download PDFInfo
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- CN105316014B CN105316014B CN201510784548.4A CN201510784548A CN105316014B CN 105316014 B CN105316014 B CN 105316014B CN 201510784548 A CN201510784548 A CN 201510784548A CN 105316014 B CN105316014 B CN 105316014B
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- 239000002028 Biomass Substances 0.000 title claims abstract description 174
- 238000000034 method Methods 0.000 title claims abstract description 88
- 238000000197 pyrolysis Methods 0.000 claims abstract description 244
- 239000003054 catalyst Substances 0.000 claims abstract description 156
- 239000000203 mixture Substances 0.000 claims abstract description 81
- 239000000779 smoke Substances 0.000 claims abstract description 76
- 238000010438 heat treatment Methods 0.000 claims abstract description 66
- 239000000463 material Substances 0.000 claims abstract description 63
- 238000012545 processing Methods 0.000 claims abstract description 63
- 238000001816 cooling Methods 0.000 claims abstract description 58
- 239000000047 product Substances 0.000 claims abstract description 49
- 239000012265 solid product Substances 0.000 claims abstract description 35
- 239000003610 charcoal Substances 0.000 claims abstract description 31
- 230000005855 radiation Effects 0.000 claims abstract description 30
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 27
- 239000007789 gas Substances 0.000 claims description 165
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 70
- 239000003546 flue gas Substances 0.000 claims description 70
- 230000008569 process Effects 0.000 claims description 42
- 239000007787 solid Substances 0.000 claims description 36
- 239000003921 oil Substances 0.000 claims description 26
- 230000008929 regeneration Effects 0.000 claims description 26
- 238000011069 regeneration method Methods 0.000 claims description 26
- 239000012075 bio-oil Substances 0.000 claims description 24
- 239000002245 particle Substances 0.000 claims description 24
- 239000000428 dust Substances 0.000 claims description 20
- 238000002156 mixing Methods 0.000 claims description 18
- 238000001035 drying Methods 0.000 claims description 15
- 238000000605 extraction Methods 0.000 claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 230000008676 import Effects 0.000 claims description 6
- 235000019504 cigarettes Nutrition 0.000 claims description 5
- 230000002779 inactivation Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000007233 catalytic pyrolysis Methods 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 12
- 239000002918 waste heat Substances 0.000 description 10
- 238000000926 separation method Methods 0.000 description 9
- 238000002485 combustion reaction Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 8
- 239000000969 carrier Substances 0.000 description 7
- 239000002994 raw material Substances 0.000 description 6
- 159000000000 sodium salts Chemical class 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 4
- 235000011613 Pinus brutia Nutrition 0.000 description 4
- 241000018646 Pinus brutia Species 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 239000003517 fume Substances 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010903 husk Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- 239000001103 potassium chloride Substances 0.000 description 2
- 235000011164 potassium chloride Nutrition 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 206010002660 Anoxia Diseases 0.000 description 1
- 241000976983 Anoxia Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 230000007953 anoxia Effects 0.000 description 1
- 108010066057 cabin-1 Proteins 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000012716 precipitator Substances 0.000 description 1
- 239000002296 pyrolytic carbon Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000010129 solution processing Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
Abstract
The invention discloses the method and system of pyrolysis biomass, this method includes：(1) biomass and catalyst are subjected to mixed processing；(2) mixed material is subjected to pyrolysis processing in moving bed pyrolysis reactor, obtains gas mixture and the pyrolysis product containing charcoal and decaying catalyst；(3) gas mixture is subjected to cooling treatment；(4) the pyrolysis product containing charcoal and decaying catalyst is burnt with air, obtains the solid product for heat smoke and containing hot ash and regenerated catalyst；(5) will be for the radiation heating tube of the moving bed pyrolysis reactor in heat smoke return to step (2)；(6) solid product containing hot ash and regenerated catalyst is subjected to separating treatment, and by regenerated catalyst return to step (1).This method can realize the catalysis pyrolysis of biomass, and be pyrolyzed efficient, homogeneous heating, while catalyst amount is big during can solving the problems, such as catalytic pyrolysis of biomass in the prior art.
Description
Technical field
The invention belongs to chemical field, and specifically, the present invention relates to a kind of method and system for being pyrolyzed biomass.
Background technology
As people are to the growing of energy demand, the fuel as main energy sources is but reduced rapidly.Therefore, one is found
The reproducible environmentally friendly energy of kind becomes the focus for social common concern.In various regenerative resources, biomass is
Unique, solar energy, or a kind of reproducible carbon source can not only be stored, conventional solid-state, liquid and gaseous state combustion can be changed into
Material, efficiently uses the usage amount that can not only reduce to fossil fuel, and can suppress carbon dioxide to biomass energy
Discharge capacity.Biomass energy efficiently uses technology and starts from phase late 1970s, mainly utilizes thermochemical study and biology
Transformation technology converts biomass into air-liquid and solid-state various energy resources product and chemicals.Thermochemical method includes：Directly fire
Burn, gasify and be pyrolyzed.Most common of which surely belongs to biomass pyrolytic technology.
Biomass pyrolytic refers to that biomass is thermally decomposed in the case where not having oxygen or anoxia condition completely, ultimately generates charcoal, biology
The process of oil and non-condensable gas, the ratio of three kinds of products depend on the type and reaction condition of pyrolytic process.Reactor is
The important device that biomass is pyrolyzed, and be current domestic and international focus of attention.Common pyrolysis reactor has heating
The features such as speed is fast, reaction temperature is medium and gas residence time is short.At present, countries in the world pass through the design to reactor, system
Make and the control of process conditions, have developed fixed bed, fluid bed, vacuum moving bed, drainage bed, entrained flow, more furnace apparatus, rotation
Converter, rotating cone reactor and all-radiant furnace etc..
In the prior art, all types of reactors respectively has advantage and disadvantage, and fixed bed, the structure of moving bed are simple, stable operation,
But heat and mass effect is poor, treatment scale is difficult to amplify；Vacuum moving bed, rotating cone reactor and all-radiant furnace are anti-to fixed bed
Answer device to be partially improved, but still there are treatment scale less, system complex the problems such as；Fluidized-bed reactor is considered as
Promising reaction unit, heat and mass effect is preferable, but its elutriation characteristic causes to contain substantial amounts of powder in pyrolysis gas of biomass
Dirt particle is difficult to purify.
Therefore, existing biomass pyrolytic technology is further improved.
The content of the invention
It is contemplated that solve at least some of the technical problems in related technologies.For this reason, the present invention
One purpose is to propose a kind of method and system for being pyrolyzed biomass, and this method can realize the catalysis pyrolysis of biomass, and
And efficient, homogeneous heating is pyrolyzed, while catalyst amount is big during can solving catalytic pyrolysis of biomass in the prior art
The problem of, and the thermal energy that process can be made full use of to produce, so as to significantly reduce processing cost.
In one aspect of the invention, the present invention proposes a kind of method for being pyrolyzed biomass.Implement according to the present invention
Example, this method include：
(1) biomass and catalyst are subjected to mixed processing, to obtain mixed material；
(2) mixed material is subjected to pyrolysis processing in moving bed pyrolysis reactor, so as to gas mixture with
And the pyrolysis product containing charcoal and decaying catalyst；
(3) gas mixture is subjected to cooling treatment, to obtain bio-oil and pyrolysis gas；
(4) the pyrolysis product containing charcoal and decaying catalyst is burnt with air, to obtain
Solid product for heat smoke and containing hot ash and regenerated catalyst；
(5) using the radiation heating tube of the moving bed pyrolysis reactor in heat smoke return to step (2) as
Heat source uses, to obtain cooling flue gas；And
(6) solid product containing hot ash and regenerated catalyst is subjected to separating treatment, to respectively obtain regeneration
Catalyst and heat ash, and the regenerated catalyst return to step (1) is mixed with the mixed material.
Thus, the method for pyrolysis biomass according to embodiments of the present invention can realize the catalysis pyrolysis of biomass, and
Efficient, homogeneous heating is pyrolyzed, while it is big to solve catalyst amount during catalytic pyrolysis of biomass in the prior art
Problem, and the thermal energy that process can be made full use of to produce, so as to significantly reduce processing cost.
In addition, the method for pyrolysis biomass according to the above embodiment of the present invention can also have technology spy additional as follows
Sign：
In some embodiments of the invention, the method for the pyrolysis biomass further comprises：(7) by the biology
Matter carries out that processing is dried to the biomass in advance before mixed processing with the catalyst.Thus, it is possible to significantly improve
Biomass pyrolytic efficiency.
In some embodiments of the invention, the method for the pyrolysis biomass further comprises：(8) by the oil gas
Before mixture carries out cooling treatment, dust removal process is carried out to the gas mixture in advance, so as to obtain after dedusting oil gas and
Solid particle, and the solid particle return to step (4) is burnt with the air.Thus, biology can not only be improved
The quality of matter oil and pyrolysis gas, and the utilization rate of raw material can be improved.
In some embodiments of the invention, the method for the pyrolysis biomass further comprises：(9) by the heat supply
Before the radiation heating tube of the moving bed pyrolysis reactor in flue gas return to step (2) is used as heat source, in advance to institute
State and carry out dust removal process for heat smoke, to supply heat smoke and fine ash after obtaining dedusting.Thus, it is possible to realize heat supply fume afterheat
Efficient utilization.
In some embodiments of the invention, the method for the pyrolysis biomass further comprises：(10) by the heat ash
The cooling flue gas obtained with least one of the fine ash with step (5) carries out heat exchange processing, to obtain heating cigarette
Gas and lime-ash, and processing is dried to the biomass in the heating flue gas return to step (7).Thus, it is possible to further
The efficient utilization of heat during realization.
In another aspect of the present invention, the present invention proposes a kind of system for being pyrolyzed biomass.It is real according to the present invention
Example is applied, the system is used for the method for implementing pyrolysis biomass described above, which includes：
Mixing arrangement, the mixing arrangement have biomass inlet, catalyst inlet and mixed material outlet, and suitable for inciting somebody to action
Biomass carries out mixed processing with catalyst, to obtain mixed material；
Moving bed pyrolysis reactor, the moving bed pyrolysis reactor have mixed material entrance, heat supply smoke inlet, drop
Warm exhanst gas outlet, gas mixture outlet and pyrolysis product exit, the mixed material entrance go out with the mixed material
Mouth is connected, and suitable for the mixed material is carried out pyrolysis processing, to obtain gas mixture and to contain charcoal and inactivation
The pyrolysis product of catalyst；
Cooling device, the cooling device has gas mixture entrance, bio-oil outlet and pyrolysis gas outlet, described
Gas mixture entrance is connected with gas mixture outlet, and suitable for the gas mixture is carried out cooling treatment, with
Just bio-oil and pyrolysis gas are obtained；
Catalyst regeneration device, the catalyst regeneration device have air intake, pyrolysis product inlet, heat supply cigarette
Gas exports and solid product outlet, the pyrolysis product inlet are connected with the pyrolysis product exit, the heat supply
Exhanst gas outlet is connected with the heat supply smoke inlet, and suitable for being produced described containing the pyrolysis of charcoal and decaying catalyst
Thing burns with air, to obtain the solid product for heat smoke and containing hot ash and regenerated catalyst, and by described in
The radiation heating tube that the moving bed pyrolysis reactor is returned for heat smoke is used as heat source, to obtain cooling flue gas；With
And
Separator, the separator has solid product entrance, regenerated catalyst outlet and the outlet of heat ash, described solid
Body product inlet is connected with solid product outlet, and the regenerated catalyst outlet is connected with the catalyst inlet, and suitable
In the solid product containing hot ash and regenerated catalyst is carried out separating treatment, to respectively obtain regenerated catalyst and heat
Ash, and the regenerated catalyst is returned into the mixing arrangement.
Thus, the system of pyrolysis biomass according to embodiments of the present invention can realize the catalysis pyrolysis of biomass, and
Efficient, homogeneous heating is pyrolyzed, while it is big to solve catalyst amount during catalytic pyrolysis of biomass in the prior art
Problem, and the thermal energy produced in system can be made full use of, so as to significantly reduce processing cost.
In addition, the system of pyrolysis biomass according to the above embodiment of the present invention can also have technology spy additional as follows
Sign：
In some embodiments of the invention, the system of the pyrolysis biomass further comprises：Drying device, it is described dry
Dry device is connected with the biomass inlet, and suitable for pre- before the biomass and the catalyst are carried out mixed processing
Processing first is dried to the biomass.Thus, it is possible to significantly improve biomass pyrolytic efficiency.
In some embodiments of the invention, the system of the pyrolysis biomass further comprises：First dust-extraction unit, institute
The first dust-extraction unit is stated with oil gas vent after gas mixture import, dedusting and solid particle outlet, the gas mixture
Import is connected with gas mixture outlet, and oil gas vent is connected with the gas mixture entrance after the dedusting, described
Solid particle outlet is connected with the pyrolysis product inlet, and suitable for by the gas mixture progress cooling treatment it
Before, dust removal process is carried out to the gas mixture in advance, to obtain oil gas and solid particle after dedusting, and by the solid
Particle returns to the catalyst regeneration device.Thus, the quality of bio-oil and pyrolysis gas can be not only improved, but also can be carried
The utilization rate of high raw material.
In some embodiments of the invention, the system of the pyrolysis biomass further comprises：Second dust-extraction unit, institute
The second dust-extraction unit is stated with heat supply exhanst gas outlet after dust-laden heat supply smoke inlet, dedusting and fine ash outlet, the dust-laden heat supply
Smoke inlet is connected with the heat supply exhanst gas outlet, and heat supply exhanst gas outlet is connected with the heat supply smoke inlet after the dedusting,
And be suitable for before the radiation heating tube that the moving bed pyrolysis reactor is returned for heat smoke is used as heat source, in advance
Dust removal process first is carried out for heat smoke to described, to supply heat smoke and fine ash after obtaining dedusting.Thus, it is possible to realize heat supply cigarette
The efficient utilization of gas waste heat.
In some embodiments of the invention, the system of the pyrolysis biomass further comprises：Heat-exchanger rig, it is described to change
Thermal has the grey entrance of heat, cooling smoke inlet, heating exhanst gas outlet and lime-ash outlet, the grey entrance of heat and the heat ash
Outlet and the fine ash outlet at least one of be connected, it is described cool down smoke inlet with it is described cool down exhanst gas outlet be connected, institute
State heating exhanst gas outlet with the drying device to be connected, and be suitable for by least one of grey and described fine ash of the heat and institute
State cooling flue gas and carry out heat exchange processing, to obtain heating flue gas and lime-ash, and the heating flue gas is returned into the drying and is filled
Put.Thus, it is possible to the efficient of heat utilizes during further realizing.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the method flow schematic diagram of pyrolysis biomass according to an embodiment of the invention；
Fig. 2 is the method flow schematic diagram of the pyrolysis biomass of further embodiment according to the present invention；
Fig. 3 is the method flow schematic diagram of the pyrolysis biomass of another embodiment according to the present invention；
Fig. 4 is the method flow schematic diagram of the pyrolysis biomass of another embodiment according to the present invention；
Fig. 5 is the method flow schematic diagram of the pyrolysis biomass of another embodiment according to the present invention；
Fig. 6 is the method flow schematic diagram of the pyrolysis biomass of another embodiment according to the present invention；
Fig. 7 is the system structure diagram of pyrolysis biomass according to an embodiment of the invention；
Fig. 8 is the system structure diagram of the pyrolysis biomass of further embodiment according to the present invention；
Fig. 9 is the system structure diagram of the pyrolysis biomass of another embodiment according to the present invention；
Figure 10 is the system structure diagram of the pyrolysis biomass of another embodiment according to the present invention；
Figure 11 is the system structure diagram of the pyrolysis biomass of another embodiment according to the present invention；
Figure 12 is the system structure diagram of the pyrolysis biomass of another embodiment according to the present invention.
Embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or has the function of same or like element.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be based on orientation shown in the drawings or
Position relationship, is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, " multiple " are meant that at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
In one aspect of the invention, the present invention proposes a kind of method for being pyrolyzed biomass.Implement according to the present invention
Example, this method include：(1) biomass and catalyst are subjected to mixed processing, to obtain mixed material；(2) by the mixing
Material carries out pyrolysis processing in moving bed pyrolysis reactor, to obtain gas mixture and to contain charcoal and inactivation catalysis
The pyrolysis product of agent；(3) gas mixture is subjected to cooling treatment, to obtain bio-oil and pyrolysis gas；(4)
The pyrolysis product containing charcoal and decaying catalyst is burnt with air, to obtain for heat smoke and
Solid product containing hot ash and regenerated catalyst；(5) by the moving bed pyrolysis in (2) for heat smoke return to step
The radiation heating tube of reactor is used as heat source, to obtain cooling flue gas；And (6) are urged described containing hot ash and regeneration
The solid product of agent carries out separating treatment, to respectively obtain regenerated catalyst and heat ash, and the regenerated catalyst is returned
Step (1) is returned to mix with the mixed material.Inventor has found, heat is carried out to biomass by using moving bed pyrolysis reactor
Solution processing, since moving bed pyrolysis reactor is using radiant tube heating so that mixed material is heated evenly in pyrolytic process, so that
The catalysis pyrolysis efficiency of biomass can be significantly improved, while moving bed pyrolysis reactor is heated using radiant tube so that radiation
The flue gas produced in pipe is isolated with gas mixture, and so as to significantly improve the quality of bio-oil and pyrolysis gas, next is adopted
Carry out regeneration treatment to decaying catalyst with the mode of burning, and by obtained regenerated catalyst be heat-fed to mixed material into
Row mixing, catalyst amount is big during not only can solving the problems, such as catalytic pyrolysis of biomass in the prior art, but also can be with
Biomass is transferred heat to as solid thermal carriers, so that the catalysis pyrolysis efficiency of biomass is further improved, additionally by
The radiation heating tube that moving bed pyrolysis reactor is returned for heat smoke produced in combustion process is used as heat source, Ke Yishi
The efficient utilization of waste heat during existing, so as to significantly reduce processing cost.
It is described in detail below with reference to the method for the pyrolysis biomass of Fig. 1-5 pairs of embodiment of the present invention.According to the present invention
Embodiment, this method includes：
S100：Biomass and catalyst are subjected to mixed processing
According to an embodiment of the invention, biomass and catalyst are subjected to mixed processing, so as to obtain mixed material.
According to one embodiment of present invention, the particular type of biomass and catalyst is not particularly restricted, this area
Technical staff can make choice according to actual needs, according to a particular embodiment of the invention, biomass can be selected from stalk,
At least one of sawdust, rice husk and pine sawdust, catalyst can be metal salt, particular certain cancers and sylvite, more preferably sodium salt, example
Such as can be potassium carbonate, sodium carbonate.Inventor has found, using catalyst of the sodium salt as biomass pyrolysis process, with sodium salt
The increase of concentration, the pyrolytic reaction of biomass is more violent, so as to significantly improve the catalysis of biomass pyrolysis efficiency.
S200：Mixed material is subjected to pyrolysis processing in moving bed pyrolysis reactor
According to an embodiment of the invention, mixed material is subjected to pyrolysis processing in moving bed pyrolysis reactor, so as to
With gas mixture and pyrolysis product containing charcoal and decaying catalyst.Specifically, moving bed pyrolysis reacts
Multiple radiation heating tubes are provided with device, the radiation heating tube is anti-for moving bed pyrolysis by burning fuel or supply high-temperature flue gas
Device is answered to provide radiant heat source, the mixed material containing biomass and catalyst is carried out at pyrolysis in moving bed pyrolysis inside reactor
Reason, the reacted device top duct discharge of gas mixture of generation.Thus, by using moving bed pyrolysis reactor to biomass
Pyrolysis processing is carried out, since moving bed pyrolysis reactor is using radiant tube heating so that mixed material is heated in pyrolytic process
Even, so as to significantly improve the catalysis of biomass pyrolysis efficiency, while moving bed pyrolysis reactor is heated using radiant tube, is made
Obtain the flue gas produced in radiant tube with gas mixture to isolate, so as to significantly improve the quality of bio-oil and pyrolysis gas.
S300：Gas mixture is subjected to cooling treatment
According to an embodiment of the invention, gas mixture obtained above is subjected to cooling treatment, so as to be given birth to
Material oil and pyrolysis gas.Thus, it is possible to realize the separation of the bio-oil and pyrolysis gas in gas mixture.According to the present invention
Specific embodiment, can carry out purified treatment, so as to be purified pyrolysis gas to the pyrolysis gas of resulting separation.Need
Bright, those skilled in the art can make choice the condition of cooling treatment and purified treatment according to being actually needed.
S400：Pyrolysis product containing charcoal and decaying catalyst is burnt with air
According to an embodiment of the invention, by the pyrolysis product obtained above containing charcoal and decaying catalyst with
Air burns, so as to obtain the solid product for heat smoke and containing hot ash and regenerated catalyst.Thus, pass through
Pyrolysis product containing charcoal and decaying catalyst is burnt with air, decaying catalyst can be carried out again
It is raw, and charcoal therein burning is changed into hot ash, and heat smoke is supplied with producing, it is biological in the prior art so as to solve
The problem of catalyst amount is big in matter catalysis pyrolytic process.In the step, specifically, air can be blasted by wind turbine with containing
The pyrolysis product of charcoal and decaying catalyst burns.
S500：The radiation heating tube that the moving bed pyrolysis reactor in S200 is returned for heat smoke is used as heat source
According to an embodiment of the invention, will be produced in above-mentioned combustion process for the movement in heat smoke return to step S200
The radiation heating tube of bed pyrolysis reactor is used as heat source, so as to obtain cooling flue gas.Thus, it is possible to realize for more than heat smoke
The efficient utilization of heat, so as to significantly reduce system energy consumption.
S600：Solid product containing hot ash and regenerated catalyst is subjected to separating treatment, and regenerated catalyst is returned
Step S100 is mixed with mixed material
According to an embodiment of the invention, by it is obtained as above to divided containing heat ash and the solid product of regenerated catalyst
From processing, so as to respectively obtain regenerated catalyst and heat ash, and by obtained regenerated catalyst return to step S100 with mixing
Compound material mixes.Thus, being mixed by being heat-fed obtained regenerated catalyst to mixed material, can not only be solved
The problem of catalyst amount is big during catalytic pyrolysis of biomass in the prior art, and solid thermal carriers can be used as by heat
Biomass is passed to, so as to further improve the catalysis pyrolysis efficiency of biomass.
The method of pyrolysis biomass according to embodiments of the present invention by using moving bed pyrolysis reactor to biomass into
Row pyrolysis processing, since moving bed pyrolysis reactor is using radiant tube heating so that mixed material is heated evenly in pyrolytic process,
So as to significantly improve the catalysis of biomass pyrolysis efficiency, while moving bed pyrolysis reactor is heated using radiant tube so that
The flue gas produced in radiant tube is isolated with gas mixture, so as to significantly improve the quality of bio-oil and pyrolysis gas, its
It is secondary using burning by the way of to decaying catalyst carry out regeneration treatment, and by obtained regenerated catalyst be heat-fed to mixture
Material is mixed, and catalyst amount is big during not only can solving the problems, such as catalytic pyrolysis of biomass in the prior art, but also
Biomass can be transferred heat to as solid thermal carriers, so as to further improve the catalysis pyrolysis efficiency of biomass, in addition
Used by regarding the radiation heating tube for heat smoke return moving bed pyrolysis reactor produced in combustion process as heat source, can
Utilized with the efficient of waste heat during realization, so as to significantly reduce processing cost.
With reference to figure 2, the method for pyrolysis biomass according to embodiments of the present invention further comprises：
S700：Biomass is dried in advance processing before biomass and catalyst are carried out mixed processing
According to an embodiment of the invention, can be in advance to biology before biomass and catalyst are carried out mixed processing
Processing is dried in matter.Thus, it is possible to the moisture in biomass is effectively reduced, so as to further improve the catalysis pyrolysis of biomass
Efficiency.It should be noted that those skilled in the art can make choice the actual conditions of drying process according to being actually needed.
With reference to figure 3, the method for pyrolysis biomass according to embodiments of the present invention further comprises：
S800：Before gas mixture is carried out cooling treatment, dust removal process is carried out to gas mixture in advance, and will
Solid particle returns to S400 and burns with air
According to an embodiment of the invention, can be in advance to air-fuel mixture before gas mixture is carried out cooling treatment
Thing carries out dust removal process, so as to obtain oil gas and solid particle after dedusting, and by solid particle return to step S400 with it is empty
Gas burns.Thus, by carrying out carrying out dust removal process in advance before Oil-gas Separation to gas mixture, can effectively recycle
The charcoal and deactivated catalyst particles carried in gas mixture, thus not only can with the quality of bio-oil and pyrolysis gas,
And can notable raw material utilization rate.
With reference to figure 4, the method for pyrolysis biomass according to embodiments of the present invention further comprises：
S900：Will for the moving bed pyrolysis reactor in heat smoke return to step S200 radiation heating tube as heat source
Before use, in advance to carrying out dust removal process for heat smoke
According to an embodiment of the invention, will produced in combustion process for the moving bed in heat smoke return to step S200
Before the radiation heating tube of pyrolysis reactor is used as heat source, dust removal process can be carried out to confession heat smoke in advance, so as to
To supply heat smoke and fine ash after obtaining dedusting.Thus, it is possible to realize the efficient profit that material waste heat in heat smoke is supplied in subsequent process
With.
With reference to figure 5, the method for pyrolysis biomass according to embodiments of the present invention further comprises：
S1000：The cooling flue gas that at least one of hot ash and fine ash are obtained with S500 is subjected to heat exchange processing, and will be risen
Biomass is dried processing in warm flue gas return to step S700
According to an embodiment of the invention, by the cooling flue gas that at least one of hot ash and fine ash are obtained with step S500 into
Row heat exchange is handled, so as to obtain heating flue gas and lime-ash, and by obtained heating flue gas return to step S700 to biology
Processing is dried in matter.Specifically, by will heat up flue gas and biomass transmission of heat by contact, biomass can be not only dried
Processing, and the temperature of flue gas can be reduced, cooling process is carried out to flue gas so as to eliminate, and by after obtained cooling
Flue gas be expelled directly out by chimney.Thus, it is possible to realize the efficient utilization of internal system waste heat, and then further reduce energy consumption
Cost.
In order to facilitate understanding, below with reference to pyrolysis biomass of the Fig. 6 to the embodiment of the present invention method concrete operations into
Row is described in detail.
Processing is dried to biomass first, the moisture in biomass is removed, then by dried biomass with urging
Agent is mixed, and obtains mixed material, is then supplied the mixed material and is carried out into moving bed pyrolysis reactor at pyrolysis
Reason, obtains gas mixture and the pyrolysis product containing charcoal and decaying catalyst, then will obtain containing life
The pyrolysis product of thing charcoal and decaying catalyst burns with air, obtains urging for heat smoke and containing hot ash and regeneration
The solid product of agent, then will carry out dust removal process for heat smoke, and heat smoke and fine ash are supplied after obtaining dedusting, and by after dedusting
The radiation heating tube that moving bed pyrolysis reactor is returned for heat smoke is used as heat source, obtains low-temperature flue gas, while produced
Gas mixture carry out dust removal process, obtain oil gas and solid particle after dedusting, and isolated solid particle is supplied
Burn to combustion process and air, cooling treatment then carried out to oil gas after dedusting, obtains bio-oil and thick pyrolysis gas,
Then purified treatment is carried out to the thick pyrolysis gas, net pyrolysis gas is obtained, then by least one of obtained fine ash and heat ash
Heat exchange processing is carried out with low-temperature flue gas, obtains heating flue gas and lime-ash, and the heating flue gas is returned as in drying process
Heat source uses, and dried flue gas can be discharged through chimney.
As described above, the method for pyrolysis biomass according to embodiments of the present invention can have the advantages that to be selected from it is following at least it
One：
The method of pyrolysis biomass according to embodiments of the present invention is existed using high-temperature flue gas radiant heating with high temperature catalyst
Pyrolysis processing is carried out to biomass in moving bed pyrolysis reactor, bio-oil and high heating value pyrolysis gas is obtained, realizes catalysis
Regeneration, recycling and catalysis pyrolysis self-loopa of the agent in system, while biomass pyrolytic is realized, reduce catalyst consumption,
It is cost-effective, reduce biomass pyrolysis process dust entrainment；
The method of pyrolysis biomass according to embodiments of the present invention makes decaying catalyst and pyrolytic carbon and air burning, makes
While decaying catalyst regenerates, high-temperature flue gas and high-temperature regenerated catalyst can be obtained, high-temperature flue gas passes through radiation heating techniques
As radiant heat source, and high-temperature regenerated catalyst is not only made by returning to moving bed pyrolysis reactor after mixing with biomass
Biomass is transferred heat to as solid thermal carriers at the same time for catalyst, therefore raising system thermal efficiency can be increased substantially,
Catalyst amount is reduced, improves device processing；
A part of heat source in the method for pyrolysis biomass according to embodiments of the present invention burns for catalyst regeneration process
The high-temperature flue gas of generation, heats moving-burden bed reactor by radiation heating tube, and exhaust gas temperature is relatively low, another part heat
The high-temperature regenerated catalyst produced from catalyst regeneration process, is used as solid thermal carriers by being mixed with dried biomass
Heat is provided, and system heat supply, overall thermal can be adjusted by adjusting the temperature and dosage of high-temperature flue gas and regenerated catalyst
Efficiency is higher；
The method of pyrolysis biomass according to embodiments of the present invention uses radiant tube heating technique, is utilizing high-temperature flue gas heat
While amount is heated, realize that flue gas with being pyrolyzed isolating for oil gas in reactor, is avoided using conventional high-temperature flue gas
The security risk brought, the flue gas influence of burden and flue gas to pyrolysis gas characteristic caused by condensation, dedusting, and made
Journey operation is simplified with control；
The method of pyrolysis biomass according to embodiments of the present invention leads to the flue gas after heat exchange cooling in radiant tube heater
Cross fume extractor and enter gas-solid heat exchange device, the sensible heat of high-temperature hot ash after burning using low-temperature flue gas recycling, after flue gas is heated up
It is passed through dryness storehouse and is used for dry feedstock, and then improves systematic heat utilization rate.
In the second aspect of the invention, the present invention proposes a kind of system for being pyrolyzed biomass.It is real according to the present invention
Example is applied, which is used for the method for implementing pyrolysis biomass described above.According to an embodiment of the invention, which includes：
Mixing arrangement, the mixing arrangement have biomass inlet, catalyst inlet and mixed material outlet, and suitable for by biomass with
Catalyst carries out mixed processing, to obtain mixed material；Moving bed pyrolysis reactor, the moving bed pyrolysis reactor have
Mixed material entrance, heat supply smoke inlet, cooling exhanst gas outlet, gas mixture outlet and pyrolysis product exit, it is described
Mixed material entrance is connected with mixed material outlet, and suitable for the mixed material is carried out pyrolysis processing, it is oily to obtain
Gas mixture and the pyrolysis product containing charcoal and decaying catalyst；Cooling device, the cooling device have oil
Gas mixture entrance, bio-oil outlet and pyrolysis gas outlet, the gas mixture entrance are exported with the gas mixture
It is connected, and suitable for the gas mixture is carried out cooling treatment, to obtain bio-oil and pyrolysis gas；Catalyst regeneration fills
Put, there is the catalyst regeneration device air intake, pyrolysis product inlet, heat supply exhanst gas outlet and solid product to go out
Mouthful, the pyrolysis product inlet is connected with the pyrolysis product exit, the heat supply exhanst gas outlet and the heat supply
Smoke inlet is connected, and suitable for the pyrolysis product containing charcoal and decaying catalyst is burnt with air,
To obtain the solid product for heat smoke and containing hot ash and regenerated catalyst, and the shifting is returned to for heat smoke by described
The radiation heating tube of dynamic bed pyrolysis reactor is used as heat source, to obtain cooling flue gas；And separator, the separation
Device has solid product entrance, regenerated catalyst outlet and the outlet of heat ash, the solid product entrance and the solid product
Outlet is connected, and the regenerated catalyst outlet is connected with the catalyst inlet, and suitable for being urged described containing hot ash and regeneration
The solid product of agent carries out separating treatment, to respectively obtain regenerated catalyst and heat ash, and the regenerated catalyst is returned
Return the mixing arrangement.Inventor has found, pyrolysis processing is carried out to biomass by using moving bed pyrolysis reactor, due to moving
Dynamic bed pyrolysis reactor is heated using radiant tube so that mixed material is heated evenly in pyrolytic process, so as to significantly improve
The catalysis pyrolysis efficiency of biomass, while moving bed pyrolysis reactor is heated using radiant tube so that the cigarette produced in radiant tube
Gas is isolated with gas mixture, so as to significantly improve the quality of bio-oil and pyrolysis gas, secondly by the way of burning
Regeneration treatment is carried out to decaying catalyst, and obtained regenerated catalyst is heat-fed to mixed material and is mixed, not only
Catalyst amount is big during can solving the problems, such as catalytic pyrolysis of biomass in the prior art, and solid thermal can be used as to carry
Body transfers heat to biomass, so that the catalysis pyrolysis efficiency of biomass is further improved, additionally by by combustion process
The radiation heating tube that moving bed pyrolysis reactor is returned for heat smoke of generation is used as heat source, it is possible to achieve waste heat in system
Efficient utilization, so as to significantly reduce processing cost.
It is described in detail below with reference to the system of the pyrolysis biomass of Fig. 7-11 pairs of embodiment of the present invention.According to the present invention
Embodiment, which includes：
Mixing arrangement 100：According to an embodiment of the invention, there is mixing arrangement 100 biomass inlet 101, catalyst to enter
Mouth 102 and mixed material outlet 103, and suitable for biomass and catalyst are carried out mixed processing, so as to obtain mixture
Material.
According to one embodiment of present invention, the particular type of biomass and catalyst is not particularly restricted, this area
Technical staff can make choice according to actual needs, according to a particular embodiment of the invention, biomass can be selected from stalk,
At least one of sawdust, rice husk and pine sawdust, catalyst can be metal salt, particular certain cancers and sylvite, more preferably sodium salt, example
Such as can be potassium carbonate, sodium carbonate.Inventor has found, using catalyst of the sodium salt as biomass pyrolysis process, with sodium salt
The increase of concentration, the pyrolytic reaction of biomass is more violent, so as to significantly improve the catalysis of biomass pyrolysis efficiency.
Moving bed pyrolysis reactor 200：According to an embodiment of the invention, moving bed pyrolysis reactor 200 has mixture
Expect entrance 201, heat supply smoke inlet 202, cooling exhanst gas outlet 203, gas mixture outlet 204 and pyrolysis product exit
205, mixed material entrance 201 is connected with mixed material outlet 103, and suitable for mixed material is carried out pyrolysis processing, so as to
To obtain gas mixture and pyrolysis product containing charcoal and decaying catalyst.Specifically, moving bed pyrolysis is anti-
Answer and multiple radiation heating tubes are provided with device, which is moving bed pyrolysis by burning fuel or supply high-temperature flue gas
Reactor provides radiant heat source, and the mixed material containing biomass and catalyst is pyrolyzed in moving bed pyrolysis inside reactor
Processing, the reacted device top duct discharge of gas mixture of generation.Thus, by using moving bed pyrolysis reactor to biology
Matter carries out pyrolysis processing, since moving bed pyrolysis reactor is using radiant tube heating so that mixed material is heated in pyrolytic process
Uniformly, so as to significantly improve the catalysis of biomass pyrolysis efficiency, while moving bed pyrolysis reactor is heated using radiant tube,
So that the flue gas produced in radiant tube is isolated with gas mixture, so as to significantly improve the product of bio-oil and pyrolysis gas
Matter.
Cooling device 300：According to an embodiment of the invention, cooling device 300 has gas mixture entrance 301, biology
Matter oil export 302 and pyrolysis gas outlet 303, gas mixture entrance 301 are connected with gas mixture outlet 204, and suitable for inciting somebody to action
Gas mixture obtained above carries out cooling treatment, so as to obtain bio-oil and pyrolysis gas.Thus, it is possible to realize oil
The separation of bio-oil and pyrolysis gas in gas mixture.According to a particular embodiment of the invention, can be to resulting separation
Pyrolysis gas carries out purified treatment, so as to be purified pyrolysis gas.It should be noted that those skilled in the art can basis
It is actually needed and the condition of cooling treatment and purified treatment is made choice.
Catalyst regeneration device 400：According to an embodiment of the invention, catalyst regeneration device 400 has air intake
401st, pyrolysis product inlet 402, heat supply exhanst gas outlet 403 and solid product outlet 404, pyrolysis product inlet 402
It is connected with pyrolysis product exit 205, heat supply exhanst gas outlet 403 is connected with heat supply smoke inlet 202, and suitable for life will be contained
The pyrolysis product of thing charcoal and decaying catalyst burns with air, to obtain for heat smoke and containing hot ash and again
The solid product of raw catalyst, and the radiation heating tube that moving bed pyrolysis reactor is returned for heat smoke is used as heat source,
To obtain cooling flue gas.Thus, by the way that the pyrolysis product containing charcoal and decaying catalyst is fired with air
Burn, decaying catalyst can be regenerated, and charcoal therein burning is changed into hot ash, and heat smoke is supplied with producing,
So as to solve the problems, such as that catalyst amount is big during catalytic pyrolysis of biomass in the prior art, and by the heat supply of generation
Flue gas is supplied to the accumulation of heat heating tube of moving bed pyrolysis reactor and used as heat source, it is possible to achieve heat supply fume afterheat it is efficient
Utilize, so as to significantly reduce system energy consumption.Specifically, air can be blasted by wind turbine with being urged containing charcoal and inactivation
The pyrolysis product of agent burns.
Separator 500：According to an embodiment of the invention, there is separator 500 solid product entrance 501, regeneration to urge
Agent outlet 502 and heat ash export 503, and solid product entrance 501 is connected with solid product outlet 404, regenerated catalyst outlet
502 are connected with catalyst inlet 102, and suitable for the solid product containing heat ash and regenerated catalyst obtained as above arrived is carried out
Separating treatment, so as to respectively obtain regenerated catalyst and heat ash, and returns to mixing dress by isolated regenerated catalyst
100 are put to mix with mixed material.Thus, mixed by being heat-fed obtained regenerated catalyst to mixed material, no
Catalyst amount is big during only can solving the problems, such as catalytic pyrolysis of biomass in the prior art, and can be used as solid thermal
Carrier transfers heat to biomass, so as to further improve the catalysis pyrolysis efficiency of biomass.
The system of pyrolysis biomass according to embodiments of the present invention by using moving bed pyrolysis reactor to biomass into
Row pyrolysis processing, since moving bed pyrolysis reactor is using radiant tube heating so that mixed material is heated evenly in pyrolytic process,
So as to significantly improve the catalysis of biomass pyrolysis efficiency, while moving bed pyrolysis reactor is heated using radiant tube so that
The flue gas produced in radiant tube is isolated with gas mixture, so as to significantly improve the quality of bio-oil and pyrolysis gas, its
It is secondary that regeneration treatment is carried out to decaying catalyst by the way of burning, and obtained regenerated catalyst is heat-fed to mixing arrangement
Mixed with biomass material, it is big can not only to solve catalyst amount during catalytic pyrolysis of biomass in the prior art
Problem, and biomass can be transferred heat to as solid thermal carriers, so as to further improve the catalysis pyrolysis of biomass
Efficiency, the radiation heating tube of moving bed pyrolysis reactor is returned to as heat additionally by will be produced in combustion process for heat smoke
Source uses, it is possible to achieve the efficient utilization of waste heat in system, so as to significantly reduce processing cost.
With reference to figure 8, the system of pyrolysis biomass according to embodiments of the present invention further comprises：
Drying device 600：According to an embodiment of the invention, drying device 600 is connected with biomass inlet 101, and is suitable for
Before biomass and catalyst are carried out mixed processing in mixing arrangement 100, place biomass can be dried in advance
Reason.Thus, it is possible to the moisture in biomass is effectively reduced, so as to further improve the catalysis pyrolysis efficiency of biomass.Need
Bright to be, those skilled in the art can make choice the actual conditions of drying process according to being actually needed.
With reference to figure 9, the system of pyrolysis biomass according to embodiments of the present invention further comprises：
First dust-extraction unit 700：According to an embodiment of the invention, the first dust-extraction unit 700 has gas mixture import
701st, oil gas vent 702 and solid particle outlet 703 after dedusting, gas mixture import 701 exports 204 phases with gas mixture
Even, oil gas vent 702 is connected with gas mixture entrance 301 after dedusting, solid particle outlet 703 and pyrolysis product inlet
402 are connected, and suitable for before gas mixture is carried out cooling treatment, carrying out dust removal process to gas mixture in advance, from
And oil gas and solid particle after dedusting can be obtained, and obtained solid particle is returned into catalyst regeneration device 400.Thus,
By carrying out carrying out dust removal process in advance before Oil-gas Separation to gas mixture, it can effectively recycle in gas mixture and carry
Charcoal and deactivated catalyst particles, but also can notable raw material so that not only can be with the quality of bio-oil and pyrolysis gas
Utilization rate.
With reference to figure 10, the system of pyrolysis biomass according to embodiments of the present invention further comprises：
Second dust-extraction unit 800：According to an embodiment of the invention, there is the second dust-extraction unit 800 dust-laden to enter for heat smoke
Heat supply exhanst gas outlet 802 and fine ash outlet 803, dust-laden heat supply smoke inlet 801 and heat supply exhanst gas outlet 403 after mouth 801, dedusting
It is connected, heat supply exhanst gas outlet 802 is connected with heat supply smoke inlet 202 after dedusting, and suitable for moving bed will be being returned for heat smoke
Before the radiation heating tube of pyrolysis reactor is used as heat source, in advance to carrying out dust removal process for heat smoke, so as to be removed
Heat smoke and fine ash are supplied after dirt.Thus, it is possible to realize the efficient utilization that material waste heat in heat smoke is supplied in subsequent process.
With reference to figure 11, the system of pyrolysis biomass according to embodiments of the present invention further comprises：
Heat-exchanger rig 900：According to an embodiment of the invention, there is heat-exchanger rig 900 the grey entrance 901 of heat, cooling flue gas to enter
Mouth 902, heating exhanst gas outlet 903 and lime-ash outlet 904, heat ash entrance 901 and heat ash are exported in 503 and fine ash outlet 803
At least one be connected, cooling smoke inlet 902 is connected with cooling exhanst gas outlet 203, heating exhanst gas outlet 903 and drying device
600 are connected, and suitable at least one of hot ash and fine ash and cooling flue gas are being carried out heat exchange processing, so as to be risen
Warm flue gas and lime-ash, and will heat up flue gas return drying device 600 and biomass is dried processing.Specifically, by that will rise
Warm flue gas and biomass transmission of heat by contact, can not only be dried biomass processing, but also can reduce the temperature of flue gas, from
And eliminate and cooling process is carried out to flue gas, and the flue gas after obtained cooling is expelled directly out by chimney.Thus, lead to
Cross and contacted the flue gas that at least one of hot ash and fine ash are produced with the radiation heating tube in pyrolytic process, can be by heat
Waste heat entrained by least one of ash and fine ash passes to flue gas, and biomass is carried out using heating flue gas in the follow-up process
Drying process, so as to realize that the efficient of internal system waste heat utilizes, and then further reduces energy consumption cost.
Below with reference to specific embodiment, present invention is described, it is necessary to which explanation, these embodiments are only to describe
Property, without limiting the invention in any way.
Embodiment
With reference to shown in figure 12, by pine sawdust raw material (Vad=73.88%, QNet, ar=18.41MJ/kg) it is stored in raw material cabin
1, dryness storehouse 2 is delivered to by belt transport processing is dried, reduced the moisture in pine sawdust, then pass through biomass
Feed arrangement 3 is delivered to feeding moving bed pyrolysis reactor after biomass is mixed with catalyst hybrid feed mechanism 5 with catalyst
6, it is anti-that radiant heating heating generation catalysis pyrolysis is carried out to mixed material through the radiation heating tube 18 on moving bed pyrolysis reactor
Answer (500-750 DEG C), the gas mixture (500-600 DEG C) of generation by reactor head pipeline enter hot precipitator 7 into
Row granule dedusting, cools down subsequently into oil gas cooler 8, and bio-oil and pyrolysis gas are respectively obtained after separation, and pyrolysis gas is subsequent
Net pyrolysis gas product is obtained after being purified into pyrolysis air purifying apparatus 9, the interior pyrolysis generation of moving bed pyrolysis reactor contains life
The pyrolysis product (500-600 DEG C) of thing charcoal and decaying catalyst is sent into catalyst regeneration dress through high-temp solid conveying device 10
Put 12 together to burn with the air from wind turbine 13, obtain the solid for heat smoke and containing hot ash and regenerated catalyst and produce
Thing, then send the solid product containing hot ash and regenerated catalyst into catalyst recovery devices 14 and carries out catalyst and heat ash
Separation and recycling, (700-800 DEG C) of regenerated catalyst after recycling enter hybrid feed mechanism 5 and are used as solid thermal carriers and catalysis
Agent is sent into moving bed pyrolysis reactor after being mixed with the supplement catalyst from supplement catalyst charge device 4 and dried biomass
6 carry out pyrolysis processing, and carry out dust removal process through dust-extraction unit 15 for heat smoke in catalyst regeneration device 12, obtain dedusting
Heat smoke and fine ash are supplied afterwards, and heat is grey together to enter the heating of gas-solid heat exchange device 16 with the fine ash from dust-extraction unit 15 from collection spoke
Penetrate the fume extractor 11 of heating tube cooling flue gas (<150 DEG C), and flue gas after heating (200-250 DEG C, oxygen content<10%) into
Enter dryness storehouse biomass material is dried, discharged after then passing to chimney 17.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms is not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
Combined in an appropriate manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this area
Art personnel can be tied the different embodiments or example described in this specification and different embodiments or exemplary feature
Close and combine.
Although the embodiment of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (7)
- A kind of 1. method for being pyrolyzed biomass, it is characterised in that including：(1) biomass and catalyst are subjected to mixed processing, to obtain mixed material；(2) mixed material is subjected to pyrolysis processing in moving bed pyrolysis reactor, to obtain gas mixture and to contain There is the pyrolysis product of charcoal and decaying catalyst；(3) gas mixture is subjected to cooling treatment, to obtain bio-oil and pyrolysis gas；(4) the pyrolysis product containing charcoal and decaying catalyst is burnt with air, to obtain heat supply Flue gas and the solid product containing hot ash and regenerated catalyst；(5) using the radiation heating tube of the moving bed pyrolysis reactor in (2) for heat smoke return to step as heat source Use, to obtain cooling flue gas；(6) solid product containing hot ash and regenerated catalyst is subjected to separating treatment, to respectively obtain regeneration catalyzing Agent and heat ash, and the regenerated catalyst return to step (1) is mixed with the mixed material；(7) place is dried to the biomass in advance before the biomass and the catalyst are carried out mixed processing Reason；(8) using the radiation heating tube of the moving bed pyrolysis reactor in (2) for heat smoke return to step as heat Before the use of source, dust removal process is carried out for heat smoke to described in advance, to supply heat smoke and fine ash after obtaining dedusting；(9) the cooling flue gas that at least one of grey and described fine ash of the heat is obtained with step (5) is carried out at heat exchange Reason, to obtain heating flue gas and lime-ash, and is dried place by the heating flue gas return to step (7) to the biomass Reason.
- 2. according to the method described in claim 1, it is characterized in that, further comprise：(10) before the gas mixture is carried out cooling treatment, dust removal process is carried out to the gas mixture in advance, To obtain oil gas and solid particle after dedusting, and the solid particle return to step (4) is burnt with the air.
- 3. a kind of system for being pyrolyzed biomass, the system is used for the side for implementing the pyrolysis biomass described in claim 1 or 2 Method, it is characterised in that the system comprises：Mixing arrangement, the mixing arrangement has biomass inlet, catalyst inlet and mixed material outlet, and is suitable for biology Matter carries out mixed processing with catalyst, to obtain mixed material；Moving bed pyrolysis reactor, the moving bed pyrolysis reactor have mixed material entrance, heat supply smoke inlet, cooling cigarette Gas outlet, gas mixture outlet and pyrolysis product exit, the mixed material entrance export phase with the mixed material Even, and suitable for the mixed material is carried out pyrolysis processing, to obtain gas mixture and to be catalyzed containing charcoal and inactivation The pyrolysis product of agent；Cooling device, the cooling device have gas mixture entrance, bio-oil outlet and pyrolysis gas outlet, the oil gas Mixture inlet is connected with gas mixture outlet, and suitable for the gas mixture is carried out cooling treatment, so as to To bio-oil and pyrolysis gas；Catalyst regeneration device, the catalyst regeneration device have air intake, pyrolysis product inlet, go out for heat smoke Mouth and solid product outlet, the pyrolysis product inlet is connected with the pyrolysis product exit, described to supply heat smoke Outlet is connected with the heat supply smoke inlet, and suitable for by the pyrolysis product containing charcoal and decaying catalyst and Air burns, to obtain the solid product for heat smoke and containing hot ash and regenerated catalyst, and by the heat supply The radiation heating tube that flue gas returns to the moving bed pyrolysis reactor is used as heat source, to obtain cooling flue gas；AndSeparator, the separator have solid product entrance, regenerated catalyst outlet and the outlet of heat ash, the solid production Thing entrance is connected with solid product outlet, and the regenerated catalyst outlet is connected with the catalyst inlet, and suitable for inciting somebody to action The solid product containing hot ash and regenerated catalyst carries out separating treatment, to respectively obtain regenerated catalyst and heat ash, And the regenerated catalyst is returned into the mixing arrangement.
- 4. system according to claim 3, it is characterised in that further comprise：Drying device, the drying device are connected with the biomass inlet, and suitable for by the biomass and the catalysis Agent carries out that processing is dried to the biomass in advance before mixed processing.
- 5. the system according to claim 3 or 4, it is characterised in that further comprise：First dust-extraction unit, first dust-extraction unit have oil gas vent and solid particle after gas mixture import, dedusting Outlet, the gas mixture import are connected with gas mixture outlet, oil gas vent and the oil gas after the dedusting Mixture inlet is connected, and solid particle outlet is connected with the pyrolysis product inlet, and is suitable for by the oil gas Before mixture carries out cooling treatment, dust removal process is carried out to the gas mixture in advance, so as to obtain after dedusting oil gas and Solid particle, and the solid particle is returned into the catalyst regeneration device.
- 6. system according to claim 5, it is characterised in that further comprise：Second dust-extraction unit, second dust-extraction unit is with heat supply exhanst gas outlet after dust-laden heat supply smoke inlet, dedusting and carefully Ash outlet, the dust-laden heat supply smoke inlet are connected with the heat supply exhanst gas outlet, heat supply exhanst gas outlet and institute after the dedusting Heat supply smoke inlet is stated to be connected, and suitable for by the radiation heating tube that the moving bed pyrolysis reactor is returned for heat smoke Before being used as heat source, dust removal process is carried out for heat smoke to described in advance, to supply heat smoke and fine ash after obtaining dedusting.
- 7. system according to claim 5, it is characterised in that further comprise：Heat-exchanger rig, the heat-exchanger rig have the grey entrance of heat, cooling smoke inlet, heating exhanst gas outlet and lime-ash outlet, institute State hot grey entrance and the heat ash outlet and the fine ash and at least one of export and be connected, it is described cool down smoke inlet with it is described Cooling exhanst gas outlet is connected, and the heating exhanst gas outlet is connected with the drying device, and suitable for the heat is grey and described At least one of fine ash carries out heat exchange processing with the cooling flue gas, to obtain heating flue gas and lime-ash, and by the liter Warm flue gas returns to the drying device.
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| CN104017597B (en) * | 2014-06-04 | 2016-01-13 | 王超 | A kind of catalytic pyrolysis of biomass system and method |
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