CN207987110U - A kind of biomass fast pyrogenation upgrading purifier - Google Patents
A kind of biomass fast pyrogenation upgrading purifier Download PDFInfo
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Abstract
The utility model is related to a kind of biomass fast pyrogenation upgrading purifier, device includes multifunctional reactor, pyrolysis catalysts classification piece-rate system, upgrading catalyst classification piece-rate system, pyrolysis catalysts regenerator, upgrading catalyst regenerator and product condensation separator.The device enables biomass in a reactor while realizing the function of pyrolysis, upgrading and purification.
Description
Technical field
The utility model belongs to field of energy utilization, and in particular to a kind of biomass fast pyrogenation upgrading purifier.
Background technology
Solve energy problem has great strategic importance for world economic growth.The changes such as coal, oil and natural gas
The long-time service of stone fuel causes serious environmental pollution and greenhouse effects.In addition, fossil fuel is non-renewable energy resources,
Liquid fuel shortage in the long term will be as the big problem of puzzlement human development.
Biomass energy is can be uniquely converted into a kind of regenerative resource of liquid fuel.It is distributed and disperses in view of biomass, shape
The reason of state is different, and energy density is low and is subject to seasonal restrictions uses biomass Thermochemical Liquefaction, by biomass in the prior art
Partly or entirely it is converted into the liquid fuel that energy density is big, is easy to storage and transports.This method is there is no product scale and disappears
Take territory restriction, is environment friendly, most promising oil substitutes.Therefore, biomass fast pyrogenation technology will be this generation
Recording most has the technology of industrialization development potentiality, is the emphasis and hot spot of domestic and international biomass liquefying research and development.
However, the pyrolysis oil inferior quality of rapidly pyrolysing and liquefying biomass in the prior art, lacks high added value, big dosage
Utilization ways.Due to biological furol viscosity height, high oxygen content, polarity is strong, calorific value is low, acidity is high, corrosion is strong, easily polymerization,
The defects of stability is poor, it is necessary to carry out refined modification.In addition, containing fine ash in the liquid fuel generated, biomass is also constrained
The use of fuel oil.
Utility model content
The purpose of this utility model is that in view of the deficiencies of the prior art, providing a kind of biomass fast pyrogenation upgrading purification
Device so that biomass can realize the function of pyrolysis, upgrading and purification simultaneously in a reactor.
The technical solution that the utility model is provided for the above technical issues is：
A kind of biomass fast pyrogenation upgrading purifier, including multifunctional reactor, pyrolysis catalysts are classified segregative line
System, upgrading catalyst classification piece-rate system, pyrolysis catalysts regenerator, upgrading catalyst regenerator and product condensation separator；
The multifunctional reactor includes mixing heating zone, and the pyrolysis reaction region and position in mixing heating zone lower end is arranged
Upgrading filtering area in pyrolysis reaction region side；The pyrolysis reaction region is separated with upgrading filtering area by the first grid；
Material inlet and the first catalyst inlet are equipped at the top of the mixing heating zone；The pyrolysis reaction region lower part is equipped with
Returning charge valve, and connect with pyrolysis catalysts regenerator by the first material returning device；The second catalysis is equipped at the top of the upgrading filtering area
Agent import, lower part are equipped with regulating valve, and side is exported equipped with gas-phase product；The outlet of the upgrading filtering area and gas-phase product passes through the
Two grids separate, and gas-phase product outlet is connect with product condensation separator, and regulating valve is connect with upgrading catalyst regenerator import；
First catalyst inlet and pyrolysis catalysts classification piece-rate system are connect, second catalyst inlet with carry
Matter catalyst is classified piece-rate system connection；The pyrolysis catalysts regenerator outlet is classified piece-rate system import with pyrolysis catalysts
Connection, the upgrading catalyst regenerator outlet are connect with the classification piece-rate system import of upgrading catalyst.
In the above technical solution, biomass is entered by material inlet, and pyrolysis catalysts by the first catalyst inlet into
Enter, the two realizes quickly mixing heating by mutually colliding in mixing heating zone, and quickly enters pyrolysis reaction region and start acutely
Reaction, the gas-phase product that pyrolysis reaction region generates enters upgrading filtering area by the first grid, with the upgrading in upgrading filtering area
Catalyst contact carries out upgrading purification, and the wherein upgrading catalyst in upgrading filtering area is entered by the second catalyst inlet.
Meanwhile upgrading filtering area also plays the effect of dust in filtering gas-phase product, the dust that gas-phase product carries
Grain is by the upgrading catalyst filtration of upgrading filtering area and moves down discharge therewith.The grain of the width and upgrading catalyst of upgrading filtering area
Degree etc. determine the gas-phase product that is generated by pyrolysis reaction region upgrading filtering area residence time.
After reaction, pyrolysis catalysts and the semicoke not reacted completely enter pyrolysis catalysts again by the first material returning device
Regeneration treatment is carried out in raw device, enters pyrolysis catalysts later and is classified piece-rate system, the pyrolysis catalysts after separation are according to difference
Grain size respectively enters multifunctional reactor, the second returning charge valve or outer row；And the upgrading catalyst after reacting then enters upgrading and is catalyzed
Carry out regeneration treatment in agent regenerator, enter upgrading catalyst later and be classified piece-rate system, the upgrading catalyst after separation according to
Different-grain diameter respectively enters multifunctional reactor or outer row；In addition, gas-phase product eventually enters into product by gas-phase product outlet
Condensation separator is detached, and biogas, wood vinegar, biological light oil and biological heavy oil etc. are finally obtained.
Preferably, first catalyst inlet is vertically arranged at the top of mixing heating zone；The material inlet includes two
It is a, it is obliquely installed respectively at the top of mixing heating zone.Further preferably, two material inlets are symmetricly set on mixing heating
At the top of area, and the angle of material inlet and the first catalyst inlet is 15-75 °.
Preferably, the pyrolysis catalysts classification piece-rate system is composed in series by three-stage cyclone separator, upper level whirlwind
The outlet of separator is connect with next stage cyclone inlet；
The ash bucket of the first order cyclone separator is connect with the first catalyst inlet at the top of mixing heating zone, and described the
The ash bucket of secondary cyclone is connect by the second material returning device with pyrolysis catalysts regenerator, the third-stage cyclone separator
Ash bucket and outlet outer row respectively.
It is classified piece-rate system by pyrolysis catalysts, it can be by the pyrolysis after pyrolysis catalysts regenerator regeneration treatment
Catalyst is divided into 3 sections by grain diameter and puts into different workshop sections, the respectively lower grain size of first order cyclone separator separation respectively
Pyrolysis catalysts more than 0.5mm are reacted for fast pyrogenation, and the pyrolysis that second level cyclone separator isolates 0.1-0.5mm is urged
Agent is for maintaining technique thermal cycle, third-stage cyclone separator to isolate and arranged outside the catalyst less than 0.1mm.
Preferably, the upgrading catalyst classification piece-rate system is composed in series by secondary cyclone, upper level whirlwind
The outlet of separator is connect with next stage cyclone inlet；
The ash bucket of the fourth stage cyclone separator is connect with the second catalyst inlet at the top of upgrading filtering area, and described
Row outside the ash bucket of five-stage whirlwind separator and outlet respectively.
It is classified piece-rate system by upgrading catalyst, it can be by the upgrading after upgrading catalyst regenerator regeneration treatment
Catalyst is divided into 2 sections by grain diameter and puts into different workshop sections, the respectively lower grain size of fourth stage cyclone separator separation respectively
Upgrading catalyst more than 0.5mm for upgrading filtering reaction, urge by the upgrading that level V cyclone separator isolates less than 0.5mm
It is arranged outside agent.
Preferably, heat collector is equipped in the pyrolysis catalysts regenerator.The setting can be effectively utilized by incomplete
The heat that the biomass semicoke of reaction generates, can provide heat for pyrolytic reaction.
Preferably, if the mixing heating zone is equipped with dry material mixed plate；The shape of the material mixed plate is triangular prism,
It is arranged in parallel between each other and is layered Heterogeneous Permutation.Further preferably, the number of plies of the material mixed plate is 2-8 layers.
Preferably, the cross section of the material mixed plate is isosceles triangle, ranging from 45-120 ° of apex angle.
Preferably, the pyrolysis reaction region is fluid bed, catalyst Al2O3, reaction temperature is 600-800 DEG C, catalyst
By being gravitationally fallen to returning charge valve, returning charge valve should have self-sealing function.
Preferably, the upgrading filtering area is moving bed, and catalyst is Ni base catalyst, and upgrading filtering area temperature is 400-
600 DEG C, catalyst falling speed is controlled by adjusting the regulating valve of lower part.
Preferably, the pyrolysis catalysts regenerator is fluid bed, and temperature is 700-950 DEG C.
Preferably, the upgrading catalyst regenerator is fluid bed, and temperature is 400-650 DEG C.
Preferably, first grid is alternatively arranged by inverted v-shaped flase floor forms；The inverted v-shaped flase floor is not
Symmetrical structure, the angle for being located at pyrolysis reaction region side edges of boards and vertical direction are less than positioned at upgrading filtering area side edges of boards and erect
Histogram to angle.
Preferably, the angular range for being located at pyrolysis reaction region side edges of boards and vertical direction is 15-45 °；Positioned at upgrading
The angular range for filtering area side edges of boards and vertical direction is 15-75 °.
Preferably, the inverted v-shaped flase floor is located at the bottom positions of pyrolysis reaction region side edges of boards and falls V less than next layer
The top position of font flase floor；The bottom position that the inverted v-shaped flase floor is located at upgrading filtering area side edges of boards is flush to
The top position of next layer of inverted v-shaped flase floor.
Preferably, the spacing distance between the inverted v-shaped flase floor is less than the grain of pyrolysis catalysts in pyrolysis reaction region
Diameter.
Preferably, second grid is alternatively arranged by linear type flase floor forms；The linear type flase floor with it is vertical
The angular range in direction is 15-45 °.
Preferably, the bottom position of the linear type flase floor is less than the top position of next layer of linear type flase floor.
Preferably, the spacing distance of the linear type flase floor is less than the grain size of upgrading catalyst in upgrading filtering area.
Preferably, the upgrading filtering area includes two, is symmetrically arranged in pyrolysis reaction region both sides.
Preferably, the upgrading catalyst regenerator includes that fluid bed burns device and reductive jar.It is flowed out from upgrading filtering area
Upgrading catalyst reaction inactivation after return in upgrading catalyst regenerator fluid bed burn after device restores using reductive jar,
It is fed again into upgrading filtering area by upgrading catalyst classification piece-rate system, so recycles.
Compared with the existing technology, the beneficial effects of the utility model are embodied in：
(1) biomass fast pyrogenation upgrading purifier provided by the utility model can realize the regeneration of catalyst with
And classification separation, realize recycling for catalyst.
(2) multifunctional reactor in biomass fast pyrogenation upgrading purifier provided by the utility model passes through lattice
Grid distinguish pyrolysis reaction region and upgrading filtering, realize biomass realized simultaneously in a reactor pyrolysis, upgrading with it is net
The function of change can effectively improve the yield and quality of product liquid, reduce the rate containing ash of product liquid.
Description of the drawings
Fig. 1 is the structural schematic diagram of biomass fast pyrogenation upgrading purifier in embodiment；
Fig. 2 is the structural schematic diagram of multifunctional reactor in embodiment.
Wherein, 1, multifunctional reactor；101, pyrolysis reaction region；102, upgrading filtering area；103, heating zone is mixed；104、
Gas-phase product exports；105, the first grid；106, the second grid；107, the first catalyst inlet；108, material inlet；109,
Two catalyst inlets；110, material mixed plate；111, regulating valve；112, returning charge valve；2, pyrolysis catalysts regenerator；3, product is cold
Solidifying separator；4, fluid bed burns device；5, reductive jar；6, the first material returning device；7, the second material returning device；8, first order cyclonic separation
Device；9, fourth stage cyclone separator；10, level V cyclone separator；11, second level cyclone separator；12, third level whirlwind point
From device；13, heat collector.
Specific implementation mode
With reference to specific embodiment, the utility model is described in further detail.
Embodiment
As shown in Figure 1, biomass fast pyrogenation upgrading purifier includes multifunctional reactor 1, pyrolysis catalysts classification
Piece-rate system, upgrading catalyst classification piece-rate system, pyrolysis catalysts regenerator 2, upgrading catalyst regenerator and product condensation
Separator 3.
Wherein, pyrolysis catalysts classification piece-rate system is composed in series by three-stage cyclone separator, upper level cyclone separator
Outlet connect with next stage cyclone inlet.The ash bucket of first order cyclone separator 8 with mix the top of heating zone 103
First catalyst inlet 107 connects, and the ash bucket of second level cyclone separator 11 is regenerated by the second material returning device 7 with pyrolysis catalysts
Device 2 connects, row outside the ash bucket of third-stage cyclone separator 12 and outlet respectively.
And upgrading catalyst classification piece-rate system is then composed in series by secondary cyclone, upper level cyclone separator
Outlet is connect with next stage cyclone inlet.The of the ash bucket of fourth stage cyclone separator 9 and 102 top of upgrading filtering area
Two catalyst inlets 109 connect, and outer row is then distinguished in the ash bucket of level V cyclone separator 10 and outlet.
As shown in Fig. 2, multifunctional reactor 1 includes mixing heating zone 103, pyrolysis reaction region 101 and upgrading filtering area
102, three is in 1 enclosure interior of multifunctional reactor.
It can be perpendicular to mix heating zone 103 to be arranged in 101 top of pyrolysis reaction region, the global shape actual production of the two
Straight cuboid, and 101 lower part of pyrolysis reaction region is equipped with the returning charge valve 112 with self-sealing function, and by the first material returning device 6 with
Pyrolysis catalysts regenerator 2 connects.Upgrading filtering area 102 is two, is separately positioned on 101 both sides of pyrolysis reaction region.Pyrolysis is anti-
Area 101 and the upgrading filtering area 102 of both sides is answered to be separated by the first grid 105.
First grid 105 is alternatively arranged by inverted v-shaped flase floor to be formed, and inverted v-shaped flase floor is dissymmetrical structure, is located at
The angle of 101 side edges of boards of pyrolysis reaction region and vertical direction, which is less than, is located at 102 side edges of boards of upgrading filtering area and vertical direction
Angle.It is 30 ° positioned at the angular range of 101 side edges of boards of pyrolysis reaction region and vertical direction, is located at upgrading filtering area 102 1
The angular range of side plate side and vertical direction is 45 °.Inverted v-shaped flase floor is located at the bottom of 101 side edges of boards of pyrolysis reaction region
Position is less than the top position of next layer of inverted v-shaped flase floor, and inverted v-shaped flase floor is located at 102 side edges of boards of upgrading filtering area
Bottom position be flush to the top position of next layer of inverted v-shaped flase floor.In addition, the interval distance between inverted v-shaped flase floor
From the grain size less than pyrolysis catalysts in pyrolysis reaction region 101.
The top for mixing heating zone 103 is equipped with material inlet 108 and the first catalyst inlet 107.First catalyst inlet
107 are vertically arranged at 103 top of mixing heating zone, and material inlet 108 includes two, is obliquely installed respectively in mixing heating zone
103 tops.Two material inlets 108 are symmetrical arranged, and the angle of material inlet 108 and the first catalyst inlet 107 is 30 °,
First catalyst inlet 107 is connect with the ash bucket of first order cyclone separator 8.
If in addition, being equipped with dry material mixed plate 110 in mixing heating zone 103, the shape of material mixed plate 110 is Mitsubishi
Column, both ends are individually fixed in the wall surface of mixing heating zone 103, and cross section is isosceles triangle, and corner angle is 120 °, mutually it
Between be arranged in parallel and be layered Heterogeneous Permutation.The number of plies of material mixed plate 110 is 3 layers.
Since the upgrading filtering area 102 of 101 both sides of pyrolysis reaction region is arranged symmetrically, the upgrading of side is only introduced herein
Filter area 102.The shape of upgrading filtering area 102 may be vertical cuboid, and top is equipped with the second catalyst inlet 109, lower part
Equipped with regulating valve 111, side is equipped with gas-phase product and exports 104, and upgrading filtering area 102 and gas-phase product outlet 104 pass through the
Two grids 106 separate.
Gas-phase product outlet 104 is connect with product condensation separator 3, and gas-phase product is detached by product condensation separator 3
Later, biogas, wood vinegar, biological light oil and biological heavy oil etc. are finally obtained.Second catalyst inlet 109 and fourth stage whirlwind
The ash bucket of separator 9 connects, and only provides side in Fig. 1, the other side can equally connect the ash bucket of fourth stage cyclone separator 9.
Regulating valve 111 then connects upgrading catalyst regenerator, and upgrading catalyst regenerator burns device 4 and reductive jar including fluid bed successively
5, also only provide side herein, when other side practice can also connect with upgrading catalyst regenerator.
Second grid 106 is alternatively arranged by linear type flase floor to be formed, the angle model of linear type flase floor and vertical direction
It is 45 ° to enclose, and relatively low positioned at the linear type flase floor edges of boards position of 102 side of upgrading filtering area.The bottom of linear type flase floor
Position be less than next layer of linear type flase floor top position, while linear type flase floor space between distance be less than carry
The grain size of upgrading catalyst in matter filtering area 102.
2 import of pyrolysis catalysts regenerator is connect with the first material returning device 6 and the second material returning device 7 respectively, and pyrolysis catalysts
The outlet of regenerator 2 is then connect with the import of first order cyclone separator 8.
Fluid bed in upgrading catalyst regenerator burns the returning charge valve 111 of the import and 102 bottom of upgrading filtering area of device 4
Connection, and the outlet of reductive jar 5 is then connect with the import of fourth stage cyclone separator 9.
In addition, being additionally provided with heat collector 13 in pyrolysis catalysts regenerator 2, heat collector 13 can be effectively utilized by incomplete
The heat that the biomass semicoke of reaction generates, can provide heat for pyrolytic reaction.
The course of work is as follows：
Biomass is passed into material inlet 108, and catalyst Al2O3It is passed into the first catalyst inlet 107, the two enters
Heating zone 103 is mixed, realizes quickly mixing heating by mutually colliding on material mixed plate 110, and it is anti-to quickly enter pyrolysis
Area 101 is answered to start vigorous reaction.
Reactiveness in pyrolysis reaction region 101 is fluid bed, and temperature is 600-800 DEG C, and solid particle leans on gravity fall
To returning charge valve 112, entered in pyrolysis catalysts regenerator 2 by the first material returning device 6 later.And what pyrolysis reaction region 101 generated
Gas-phase product then passes through the first grid 105 and enters upgrading filtering area 102, the catalyst n i base catalyst with upgrading filtering area 102
Contact carries out upgrading filtering reaction, while Ni base catalyst also plays the effect of dust in filtering gas-phase product.
Reactiveness in upgrading filtering area 102 is moving bed, and temperature is 400-600 DEG C, and solid particle falling speed is logical
The regulating valve 111 of lower part is overregulated to control, and upgrading is returned after the upgrading catalyst reaction inactivation that upgrading filtering area 102 flows out
After fluid bed in catalyst regenerator burns device 4 using the reduction of reductive jar 5, piece-rate system is classified into upgrading catalyst.
The width of upgrading filtering area 102 and the granularity etc. of upgrading catalyst determine that the gas-phase product generated by pyrolysis reaction region 101 exists
The residence time of upgrading filtering area 102.
Then pass through gas-phase product outlet 104 by the filtered gaseous phase materials of upgrading and enter product condensation separator 3, passes through
After the separation of product condensation separator 3, biogas, wood vinegar, biological light oil and biological heavy oil etc. are obtained.
Pyrolysis catalysts after 2 regeneration treatment of pyrolysis catalysts regenerator then enter pyrolysis catalysts classification separation
Pyrolysis catalysts are divided into 3 sections by grain diameter and put into different workshop sections respectively, respectively by system：First order cyclonic separation
Lower pyrolysis catalysts of the grain size more than 0.5mm of the separation of device 8 are reacted for fast pyrogenation, and second level cyclone separator 11 is isolated
The pyrolysis catalysts of 0.1-0.5mm are for maintaining technique thermal cycle, third-stage cyclone separator 12 to isolate urging less than 0.1mm
It is arranged outside agent.
Upgrading catalyst after 2 regeneration treatment of upgrading catalyst regenerator then enters the classification separation of upgrading catalyst
Upgrading catalyst is divided into 2 sections by grain diameter and puts into different workshop sections respectively, respectively by system：Fourth stage cyclonic separation
The separation of device 9 upgrading catalyst of the lower grain size more than 0.5mm for upgrading filtering reaction, isolate small by level V cyclone separator 10
In row outside the upgrading catalyst of 0.5mm.
Claims (9)
1. a kind of biomass fast pyrogenation upgrading purifier, which is characterized in that including multifunctional reactor, pyrolysis catalysts point
Grade piece-rate system, upgrading catalyst classification piece-rate system, pyrolysis catalysts regenerator, upgrading catalyst regenerator and product condensation
Separator；
The multifunctional reactor includes mixing heating zone, is arranged in the pyrolysis reaction region of mixing heating zone lower end and positioned at heat
Solve the upgrading filtering area of reaction zone side；The pyrolysis reaction region is separated with upgrading filtering area by the first grid；
Material inlet and the first catalyst inlet are equipped at the top of the mixing heating zone；The pyrolysis reaction region lower part is equipped with returning charge
Valve, and connect with pyrolysis catalysts regenerator by the first material returning device；Be equipped at the top of the upgrading filtering area the second catalyst into
Mouthful, lower part is equipped with regulating valve, and side is exported equipped with gas-phase product；The upgrading filtering area passes through the second lattice with gas-phase product outlet
Grid separate, and gas-phase product outlet is connect with product condensation separator, and regulating valve is connect with upgrading catalyst regenerator import；
First catalyst inlet is connect with pyrolysis catalysts classification piece-rate system, and second catalyst inlet is urged with upgrading
Agent is classified piece-rate system connection；The pyrolysis catalysts regenerator outlet connects with pyrolysis catalysts classification piece-rate system import
It connects, the upgrading catalyst regenerator outlet is connect with the classification piece-rate system import of upgrading catalyst.
2. biomass fast pyrogenation upgrading purifier according to claim 1, which is characterized in that the pyrolysis catalysts
Classification piece-rate system is composed in series by three-stage cyclone separator, outlet and the next stage cyclone separator of upper level cyclone separator
Import connects；
The ash bucket of first order cyclone separator is connect with the first catalyst inlet at the top of mixing heating zone, second level cyclonic separation
The ash bucket of device is connect by the second material returning device with pyrolysis catalysts regenerator, and the ash bucket of third-stage cyclone separator and outlet are distinguished
Outer row.
3. biomass fast pyrogenation upgrading purifier according to claim 1, which is characterized in that the upgrading catalyst
Classification piece-rate system is composed in series by secondary cyclone, outlet and the next stage cyclone separator of upper level cyclone separator
Import connects；
The ash bucket of fourth stage cyclone separator is connect with the second catalyst inlet at the top of upgrading filtering area, level V cyclonic separation
Row outside the ash bucket of device and outlet respectively.
4. biomass fast pyrogenation upgrading purifier according to claim 1, which is characterized in that the mixing heating zone
If equipped with dry material mixed plate；The shape of the material mixed plate is triangular prism, is arranged in parallel between each other and is layered dislocation row
Row.
5. biomass fast pyrogenation upgrading purifier according to claim 1, which is characterized in that first grid by
Inverted v-shaped flase floor is alternatively arranged composition；The inverted v-shaped flase floor is dissymmetrical structure, is located at pyrolysis reaction region side plate
The angle of side and vertical direction is less than the angle positioned at upgrading filtering area side edges of boards and vertical direction.
6. biomass fast pyrogenation upgrading purifier according to claim 5, which is characterized in that the inverted v-shaped lattice
Screen is located at top position of the bottom position less than next layer of inverted v-shaped flase floor of pyrolysis reaction region side edges of boards；The V
The bottom position that font flase floor is located at upgrading filtering area side edges of boards is flush to the top position of next layer of inverted v-shaped flase floor
It sets.
7. biomass fast pyrogenation upgrading purifier according to claim 1, which is characterized in that second grid by
Linear type flase floor is alternatively arranged composition；The angular range of the linear type flase floor and vertical direction is 15-45 °.
8. biomass fast pyrogenation upgrading purifier according to claim 1, which is characterized in that the upgrading filtering area
Including two, it is symmetrically arranged in pyrolysis reaction region both sides.
9. biomass fast pyrogenation upgrading purifier according to claim 1, which is characterized in that the upgrading catalyst
Regenerator includes that fluid bed burns device and reductive jar.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107723014A (en) * | 2017-10-25 | 2018-02-23 | 浙江科技学院 | A kind of biomass fast pyrogenation upgrading purifier and technique |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107723014A (en) * | 2017-10-25 | 2018-02-23 | 浙江科技学院 | A kind of biomass fast pyrogenation upgrading purifier and technique |
| CN107723014B (en) * | 2017-10-25 | 2023-03-10 | 浙江科技学院 | Biomass fast pyrolysis quality improvement purification device and process |
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