CN109111940A - A kind of miniature movable type agricultural and forest biomass fast pyrolysis liquefying plant - Google Patents
A kind of miniature movable type agricultural and forest biomass fast pyrolysis liquefying plant Download PDFInfo
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- CN109111940A CN109111940A CN201810804269.3A CN201810804269A CN109111940A CN 109111940 A CN109111940 A CN 109111940A CN 201810804269 A CN201810804269 A CN 201810804269A CN 109111940 A CN109111940 A CN 109111940A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B49/00—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated
- C10B49/02—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated with hot gases or vapours, e.g. hot gases obtained by partial combustion of the charge
- C10B49/04—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated with hot gases or vapours, e.g. hot gases obtained by partial combustion of the charge while moving the solid material to be treated
- C10B49/08—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated with hot gases or vapours, e.g. hot gases obtained by partial combustion of the charge while moving the solid material to be treated in dispersed form
- C10B49/10—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated with hot gases or vapours, e.g. hot gases obtained by partial combustion of the charge while moving the solid material to be treated in dispersed form according to the "fluidised bed" technique
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/02—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of cellulose-containing material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1011—Biomass
- C10G2300/1014—Biomass of vegetal origin
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Dispersion Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The present invention relates to a kind of miniature movable type agricultural and forest biomass fast pyrolysis liquefying plants, belong to biomass energy technology field.Fast pyrolysis liquefying plant of the invention, including the spouted dual strength feeder of fluidized bed-, the double-fluidized-bed reactor of bushing type, combustion furnace, cyclone separator, collection charcoal case, fuel gas bottle, water tank, oil storage tank, injection-spray composite condenser, level-one gas purifier, secondary gas clarifier and gas surge tank etc..Apparatus of the present invention are suitable for the agricultural-forestry biomass resource concentrated areas such as forest farm, village and carry out fast pyrolysis liquefaction conversion on the spot；On trailer platform, each modular construction is compact for whole design, and no unwanted motion component, work runs smoothly, and is turned into industry convenient for outdoor moving；By-product of the device in thermal cracking processes not condensible gas is made full use of, closed cycle is carried out, most power self-supports is realized, meets self-heat-supply thermal cracking and environmentally friendly requirement.
Description
Technical field
The present invention relates to a kind of miniature movable type agricultural and forest biomass fast pyrolysis liquefying plants, belong to biomass energy skill
Art field.
Background technique
Biomass is the energy that mankind's early start utilizes, and is cleaned with it, is pollution-free, reproducible feature is concerned.
Fast pyrolysis liquefaction technology is one of the important technology that biomass energy thermochemical study utilizes, in anaerobic or anaerobic environment,
Agricultural-forestry biomass is in medium thermal cracking temperature (450-650 DEG C), higher heating rate (104-105DEG C/s), low residence times (<
Liquid (pyrolysis oil), solid (pyrolytic carbon) gentle (not condensible gas) three kinds of products 2s) are converted under fasting conditions.
Since biomass material has the characteristics that seasonal, dispersibility, regional low with energy density, if from growing location into
Row centralized collection, then transport to designated place (such as concentration heat pyrolysis liquefying factory) and carry out thermal cracking liquefaction, it is not only time-consuming and laborious,
And increase biomass utilization cost largely, it is unfavorable for biomass energy and inexpensively fully utilizes, and concentration heat lysate
Chemical plant scale is bigger, and required maintenance quantity-produced biomass material amount is bigger, and correspondingly raw material collect range is bigger, and
Remote centralized collection, transportation cost necessarily sharply increase, and are unfavorable for the popularization and application of biomass energy.Therefore, mobile
The research and development of biomass fast pyrolysis liquefying plant are gradually risen, and becoming reduces raw material collection, transportation cost and conversion life on the spot
New, the important method of one kind of the substance energy.
Mobile biomass fast pyrolysis liquefying plant is integrally attached on trailer platform or lorry wagon box, it is desirable that each portion
Part is compact-sized, and no unwanted motion component, flexible to operation, low energy consumption, as far as possible realization self-heat-supply thermal cracking, is suitable for moving
It is dynamic to be turned into industry, meet the particularity of the work sites such as forest farm, village.
WIPO PCT Patent WO2006/117006 (A1) discloses a kind of mobile biomass thermal cracker, by hot tearing
Solution device is mounted in mobile mechanism, and the region concentrated can be distributed by biomass resources such as trailer traction to forest farm, villages and is carried out
Thermal cracking liquefaction, reduces raw material collect range, reduces transportation cost, which is centrifugal ablation reaction
Device belongs to the direct contact reactor of mechanical movement formula, can satisfy the pyrolysis of big partial size raw material (2-6mm), and does not need to make
With heat transfer medium and auxiliary gas, but its to contain mechanical moving element, structure more complex, be easy to appear in practical pyrolytic process
Mechanical moving element wear phenomenon, the reliability of operation that works and device lifetime are restricted.Central China University of Science and Technology's patent of invention
CN100340637C discloses a kind of mobile biomass liquefaction system, and the system is by gasification furnace, jet dynamic control, biomass
The composition such as pyrolysis oven, cooling tower, feature is by Automobile Transportation, and required electric power is supplied by Biomass Gasification & Power Generation, realizes that energy is complete
It is complete self-supporting, but disadvantage is correspondingly also very prominent, turns to need from automobile to unload equipment down when factory, needs in new production site
It carries out reinstalling debugging, it is longer to turn factory's period；The system process is complicated simultaneously, involves great expense, and the device is complicated, worked
Disorderly closedown is easy to appear in journey.Beijing Forestry University patent of invention CN101671570B discloses a kind of miniature movable type agricultural and forest
Biomass fast pyrolysis device, by walking mechanism, combustion furnace, feeder, rapid pyrolysis reactor, gas-solid separator, gas
The composition such as condenser body, but the device combustion furnace is external, only heats fluidized carrier gas with high-temperature flue gas, does not account for reaction zone heat exchange
(because height for reactor is adjustable, being not suitable for arrangement heat exchange facilities), heat exchange efficiency is limited, and structure is not compact enough, does not have
By-product-the pyrolytic carbon and not condensible gas for making full use of thermal cracking to generate.Beijing Forestry University patent of invention CN
106590706 disclose a kind of biomass pyrolysis for liquid production system that can be vehicle-mounted, which belongs to mobile biomass heat
Pyrolysis liquefying process aspect patent, but without carrying out correspondingly device development.
In conclusion existing mobile biomass fast pyrolysis liquefying plant can not preferably adapt to mobile work
Factory is turned into industry, complex cumbersome in technique, or only technique does not have actual device development, could not make full use of pyrolysis by-product
Object results in waste of resources；Not compact enough in structure, heat transfer efficiency is low, and a variety of auxiliary devices keep single unit system too fat to move, inconvenient fortune
It is defeated.
Summary of the invention
The purpose of the present invention is to propose to a kind of miniature movable type agricultural and forest biomass fast pyrolysis liquefying plants, to be suitable for
The agricultural-forestry biomass resource concentrated area such as forest farm, village carries out fast pyrolysis liquefaction conversion on the spot；Whole design is flat in trailer
On platform, each modular construction is compact, and no unwanted motion component, work runs smoothly, and is turned into industry convenient for outdoor moving；Make full use of dress
Setting the by-product in thermal cracking processes, condensible gas, progress closed cycle do not realize most power self-supports, meet confession
Hot type thermal cracking and environmentally friendly requirement.
Miniature movable type agricultural and forest biomass fast pyrolysis liquefying plant proposed by the present invention, including fluidized bed-are spouted double
Weight strength feeder, the double-fluidized-bed reactor of bushing type, combustion furnace, cyclone separator, collection charcoal case, fuel gas bottle, water tank, oil storage
Tank, injection-spray composite condenser, level-one gas purifier, secondary gas clarifier and gas surge tank；The fluidisation
The outlet of bed-spouted dual strength feeder is connected with the feed pipe of the spouted dual strength feeder inner tube lower part of fluidized bed-
Logical, the outlet of the combustion furnace is connected with the outer tube of the double-fluidized-bed reactor of bushing type, the double-fluidized-bed reactor of bushing type
Upper outlet be connected with the import of cyclone separator, the upper outlet of cyclone separator and injection-spray combined type condense
The upper inlet of device is connected, and the collection charcoal case is placed in the lower part of cyclone separator, under injection-spray composite condenser
Portion is equipped with two-way outlet, and the way outlet in two-way outlet is connected with the oil storage tank, and the another way in two-way outlet goes out
Mouth is connected by oil pump with injection-spray composite condenser upper inlet, injection-spray composite condenser top
Outlet is connected with the upper inlet of the level-one gas purifier, the lower part outlet of level-one gas purifier and described two
The upper inlet of grade gas purifier is connected, and the lower part outlet of secondary gas clarifier passes through circulating fan and the gas
The import of surge tank is connected, and gas buffer tank shares five road gas vents, first via gas vent therein and fluidized bed-spray
The Pressure chamber for moving dual strength feeder is connected, the second road gas vent and the spouted dual strength feeder lower part of fluidized bed-
Surge chamber be connected, the counnter attack jet branch pipe outside third road gas vent and the spouted dual strength feeder Pressure chamber of fluidized bed-
It is connected, the 4th road gas vent is connected with the spiral-plate heat exchanger of the double-fluidized-bed reactor bottom of bushing type, the 5th road gas
Body outlet is connected with combustion furnace.
Miniature movable type agricultural and forest biomass fast pyrolysis liquefying plant proposed by the present invention, its advantage is that:
1, the spouted dual strength feeder of fluidized bed-in thermal cracking liquefying plant of the invention, under fluidized bed effect,
Make biomass powder in particulate fluidization state (expanded bed), can to avoid occur in charging bridge formation, wall built-up, rat hole etc. it is non-homogeneous into
Material situation；Using continuous schedule spouted strength charging, using the by-product generated in thermal cracking processes not condensible gas as spouted
Gas source, gives full play to that mobile hot cracking apparatus is compact-sized, advantage of power self-support.
2, the double-fluidized-bed reactor of bushing type in thermal cracking liquefying plant of the invention, reaction zone, heat transfer zone is nested
In conjunction with combustion furnace, spiral-plate heat exchanger and reactor is integrated, and compact overall structure, small in size, heat transfer efficiency is high, can
To meet fast pyrolysis reaction thermal transmission requirement；Using the by-product generated in thermal cracking processes not condensible gas as inside stream
Change the fluidized carrier gas of bed, while condensible gas is passed through combustion furnace substitution Some gases, carries out combustion heat supplying, realize thermal cracking
The making full use of of by-product, the purpose of power self-support.
3, the cyclone separator in thermal cracking liquefying plant of the invention is that two-stage rotation divides separator in parallel, and gas can be improved
Gu separative efficiency, realization pyrolysis gas and solid carbon efficiently separate.
4, injection-spray composite condenser in thermal cracking liquefying plant of the invention, including spray and spray two
Link is condensed, time condensation is carried out to thermal cracking gas, and two condensation links are placed in interior of shell, compact-sized, condensation simultaneously
Time is short, avoids that thermal cracking gas second decomposition occurs, and improves pyrolysis oil yield；It is internally integrated cooling coil simultaneously, without outside
Heat exchanger, improves heat exchange efficiency, and structure is more compact；Injection, spray liquid use condensed pyrolysis oil, can to avoid injection,
Secondary pollution of the spray liquid to thermal cracking gas makes full use of thermal cracking products, saves operating cost.
5, it uses dual gas clarifier for the series connection of two-stage gas clarifier in thermal cracking liquefying plant of the invention, improves
To the efficiency of not condensible gas purification, use the reproducible biological material such as corncob as sorptive material to not condensable
Gas is purified, and tar and moisture in not condensible gas can be effectively removed, and prevents tar from depositing and blocking pipeline, is guaranteed
Equipment continuous and steady operation.
6, the gas buffer tank in thermal cracking liquefying plant of the invention has the function of caching, pressure stabilizing not condensible gas,
It is not only real as feeder fluidized gas and spouted feeding gas, reactor fluidized carrier gas, combustion furnace substitution combustion gas to incite somebody to action not condensible gas
Condensible gas does not recycle existing subsidiary product of thermal cracking, and reduces system energy consumption, realizes energy-autarchic, reduces operation production
Cost.
7, thermal cracking liquefying plant of the invention can be placed on a trailer walking mechanism, the walking mechanism by vehicle frame,
Traction mechanism and stabilizer blade composition, thermal cracking liquefying plant are mounted on the trailer walking mechanism, use tractor etc. with can be convenient
Power source is drawn to the forest farm of agricultural-forestry biomass resource Relatively centralized, rural area carries out fast pyrolysis liquefaction production, is realized
Mobile factory operations save raw material collection and transportation cost, reduce production cost.
In conclusion miniature movable type agricultural and forest biomass fast pyrolysis liquefying plant proposed by the present invention, it can be whole
Design is compact-sized, small in size, run smoothly on trailer walking mechanism, easy to remove to be turned into industry, saves raw material and collects and fortune
Defeated cost；Making full use of the by-product in thermal cracking processes, condensible gas, progress closed cycle do not realize most energy certainly
It gives, meets self-heat-supply thermal cracking and environmentally friendly requirement.
Detailed description of the invention
Fig. 1 is the structural block diagram of miniature movable type agricultural and forest biomass fast pyrolysis liquefying plant proposed by the present invention.
Fig. 2 is the structural representation of the spouted dual strength feeder of fluidized bed-in thermal cracking liquefying plant shown in FIG. 1
Figure.
Fig. 3 is the structural schematic diagram of the double-fluidized-bed reactor of bushing type in thermal cracking liquefying plant shown in FIG. 1.
Fig. 4 is injection-spray composite condenser structural schematic diagram in thermal cracking liquefying plant shown in FIG. 1.
Fig. 5 is an embodiment structure cloth of miniature movable type agricultural and forest biomass fast pyrolysis liquefying plant of the present invention
Office's figure.
In Fig. 1-Fig. 5,1 is the spouted dual strength feeder of fluidized bed-, and 2 be the double-fluidized-bed reactor of bushing type, and 3 be combustion
Furnace is burnt, 4 be cyclone separator, and 5 be collection charcoal case, and 6 be fuel gas bottle, and 7 be water tank, and 8 be oil storage tank, and 9 be injection-spray composite type cold
Condenser, 10 be oil pump, and 11 be level-one gas purifier, and 12 be secondary gas clarifier, and 13 be combustion fan, and 14 be circulated air
Machine, 15 be gas buffer tank, and 16 be hopper, and 17 be butterfly valve, and 18 be Pressure chamber, and 19 be spouted pipe, and 20 be surge chamber, and 21 be anti-
Branch pipe is regurgitated, 22 be conveying pipeline, and 23 be air distribution plate, and 24 be inner tube, and 25 be outer tube, and 26 are back smoke pipe, and 27 be annulus cloth wind
Plate, 28 be feed pipe, and 29 spiral-plate heat exchangers, 30 be reaction zone air distribution plate, and 31 be end socket, and 32 be air and liquid mixer, and 33 be heat
Cracking gas import, 34 be cooling coil, and 35 be pyrolysis oil export, and 36 be sewage draining exit, and 37 be injection-ejecting liquid outlet, and 38 are
Diversion pipe, 39 be spray thrower, and 40 be shell, and 41 be traction mechanism, and 42 be vehicle frame, and 43 be stabilizer blade.
Specific embodiment
Miniature movable type agricultural and forest biomass fast pyrolysis liquefying plant proposed by the present invention, structure is as shown in Figure 1, packet
Include the spouted dual strength feeder 1 of fluidized bed-, the double-fluidized-bed reactor 2 of bushing type, combustion furnace 3, cyclone separator 4, collection charcoal case
5, fuel gas bottle 6, water tank 7, oil storage tank 8, injection-spray composite condenser 9, level-one gas purifier 11, secondary gas purification
Device 12 and gas surge tank 15.The outlet of the spouted dual strength feeder 1 of fluidized bed-and the spouted dual strength of fluidized bed-are fed
The feed pipe of 1 inner tube lower part of device is connected, and the outlet of combustion furnace 3 is connected with the outer tube of the double-fluidized-bed reactor 2 of bushing type, set
The upper outlet of the double-fluidized-bed reactor 2 of tubular type is connected with the import of cyclone separator 4, the upper outlet of cyclone separator 4
It is connected with injection-spray composite condenser 9 upper inlet.Collection charcoal case 5 is placed in the lower part of cyclone separator 4, injection-
The lower part for spraying composite condenser 9 is equipped with two-way outlet, and the way outlet in two-way outlet is connected with the oil storage tank 8
Logical, another way outlet in two-way outlet is connected by oil pump 10 with injection-spray composite condenser 9 upper inlet,
Injection-spray composite condenser 9 upper outlet is connected with the upper inlet of the level-one gas purifier 11, level-one
The lower part outlet of gas purifier 11 is connected with the upper inlet of the secondary gas clarifier 12, secondary gas clarifier
12 lower part outlet is connected by circulating fan 14 with the import of the gas buffer tank 15, and gas buffer tank 15 shares five
Road gas vent, first via gas vent a therein are connected with the Pressure chamber of the spouted dual strength feeder of fluidized bed-, the
Two road gas vent b are connected with the surge chamber of the spouted dual strength feeder lower part of fluidized bed-, third road gas vent c with
Counnter attack jet branch pipe 21 outside spouted dual 1 Pressure chamber of strength feeder of fluidized bed-is connected, the 4th road gas vent d and casing
The spiral-plate heat exchanger of the double-fluidized-bed reactor bottom of formula is connected, and the 5th road gas vent e is connected with combustion furnace 3.
The contents of the present invention are discussed in detail below in conjunction with attached drawing:
Miniature movable type agricultural and forest biomass fast pyrolysis liquefying plant proposed by the present invention, process flow chart such as Fig. 1
Shown, biomass powder passes through 22 sleeve pipe formula double fluid of conveying pipeline in the case where the spouted dual strength feeder 1 of fluidized bed-acts on
Bed reactor 2, carries out fast pyrolysis reaction in the double-fluidized-bed reactor 2 of bushing type, and the pyrolysis gas and solid carbon of generation are mixed
It closes object and enters cyclone separator 4, solid carbon is separated with thermal cracking gas, collection charcoal case 5, thermal cracking are fallen into after solid carbon separation
Gas enters injection-spray composite condenser 9, condenses under injection, spray double action to thermal cracking gas, condensable portion
Point become pyrolysis oil, can not condensation portion be not condensible gas, pyrolysis oil a part is as injection, spray liquid, extra pyrolysis oil
Into oil storage tank 8, condensible gas does not pass through first order gas purifier 11 and second level gas purifier 12 successively, and removing can not
Tar and moisture in condensing gas enter surge tank 15 under the effect of circulating fan 14 convenient for recycling for not condensible gas,
Surge tank 15 caches not condensible gas, pressure stabilizing, and surge tank outlet is divided into 5 tunnels, and wherein the road a, b and fluidized bed-are spouted
Dual strength feeder 1 is connected, and plays the role of spouted and fluidisation biomass powder, the road c and blows and use as feeding anti-reversion, prevents
Only in the double-fluidized-bed reactor 2 of bushing type fluidization gas pressure influence the spouted dual strength feeder 1 of fluidized bed-charging
Journey, fluidized carrier gas of the road d as the double-fluidized-bed reactor 2 of bushing type play the role of fluidized bed material, enhancing heat exchange, the conduct of the road e
Combustion gas is substituted to use.The high-temperature flue gas that the origin of heat of double-fluidized-bed 2 reaction zone of reactor of bushing type is generated in combustion furnace 3, combustion
Burn the high temperature cigarette that furnace 3 is generated in equipment initial phase, heat by the combustion air burning of the liquefied gas and combustion fan 13 of fuel gas bottle 6
Gas supply, after stable operation, using surge tank 15 the road d not condensible gas substitute Some gases, realize power self-support.
The spouted dual strength feeder 1 of fluidized bed-of the invention, realize by biomass powder rapidly, continuously, steadily into
Material, structural schematic diagram is as shown in Fig. 2, include hopper 16, butterfly valve 17, Pressure chamber 18, spouted pipe 19, surge chamber 20, counter-jetting resistance
Branch pipe 21, conveying pipeline 22 and air distribution plate 23.16 bottom discharge mouth of hopper is connected by flange with butterfly valve 17, butterfly valve 17 and pressure
18 flanged joint of storehouse, 18 lower end of Pressure chamber are equipped with spouted pipe 19, conveying pipeline 22 and counnter attack jet branch pipe 21, and 18 bottom of Pressure chamber is stream
Change bed structure, fluidized-bed structure includes surge chamber 20 and air distribution plate 23.The conical hopper wall of 16 lower part of hopper and horizontal plane inclination angle
Greater than 55 °, air distribution plate porosity is 1%-3%.Conveying pipeline 22 is connected with the feed pipe 28 of the double-fluidized-bed reactor 2 of bushing type.
The double-fluidized-bed reactor 2 of bushing type of the invention realizes and carries out fast pyrolysis reaction to biomass, structure is shown
It is intended to as shown in figure 3, including inner tube 24, outer tube 25 returns smoke pipe 26, annulus air distribution plate 27, feed pipe 28, spiral-plate heat exchanger
29, reaction zone air distribution plate 30, end socket 31 and combustion furnace 3.Inner tube 24 carried out with outer tube 25 it is nested, inner tube 24 be fluidized-bed reaction
Area, the fluidized bed annulus between inner tube 24 and outer tube 25 are heat transfer zone, and reaction zone and heat transfer zone are respectively arranged with reaction zone cloth
Aerofoil 30 and annulus air distribution plate 27, fill bed material respectively on air distribution plate.The outlet of combustion furnace 3 is connected with annulus lower part, produces
Raw high-temperature flue gas tangentially enters annulus, is equipped with high-temperature flue gas outlet at the top of annulus, returns smoke pipe 26 for high-temperature flue gas outlet
It is connected with 29 air inlet of reactor lower part spiral-plate heat exchanger, the 4th tunnel fluidized carrier gas of surge tank 15 is preheated.Thermal cracking
Gas is connected by 31 gas outlet of end socket with 4 air inlet of cyclone separator.
The effectively condensation liquefaction to thermal cracking gas, structure are realized in injection of the invention-spray composite condenser 9
Schematic diagram is as shown in figure 4, include air and liquid mixer 32, thermal cracking gas import 33, cooling coil 34, pyrolysis oil export 35, blowdown
Mouth 36, injection-ejecting liquid outlet 37, diversion pipe 38, spray thrower 39, shell 40.Air and liquid mixer 32 is connected with diversion pipe 38,
Cooling coil 34 is housed, 34 entery and delivery port of cooling coil is connected with water tank 7, and 39 double rows of nozzles of spray thrower is just around diversion pipe 38
To the Internal and external cycle coil pipe of cooling coil 34, spraying cooling is carried out.Injection-ejecting liquid outlet 37 by oil pump 10 respectively with spray
Drench device 39,32 import of air and liquid mixer is connected.Pyrolysis oil export 35 is connected with oil storage tank 8.
Cyclone separator 4 of the invention is that two-stage rotation divides separator, and two-stage rotation divides separator used in parallel, lower part outlet point
Be not connected with collection charcoal case 5, can be improved gas-solid disngaging efficiency, realization pyrolysis gas and solid carbon efficiently separate.
Dual gas clarifier of the invention is that level-one gas purifier 11 is connected with secondary gas clarifier 12, level-one gas
The reproducible biological material such as corncob is filled in body clarifier 11 and secondary gas clarifier 12 respectively as adsorptivity material
Material carries out tar removing, drying to not condensible gas, improves not condensible gas purification efficiency, prevents tar from depositing and blocking pipeline,
Guarantee equipment continuous and steady operation.
Gas buffer tank 15 of the invention has the function of caching, pressure stabilizing not condensible gas, follows to not condensible gas
Ring utilizes, as the fluidized gas of the spouted dual strength feeder 1 of fluidized bed-and the blowback of spouted feeding gas, counnter attack jet branch pipe 21
The combustion gas of the fluidized carrier gas, combustion furnace 3 of the double-fluidized-bed reactor 2 of gas, bushing type not only realizes that subsidiary product of thermal cracking-can not be cold
Solidifying gas recycles, and reduces system energy consumption, reduces production cost.
As shown in figure 5, trailer walking mechanism of the invention, the walking mechanism is by vehicle frame 42, traction mechanism 41 and stabilizer blade 43
Composition, thermal cracking liquefying plant are mounted on the trailer walking mechanism, connect the power sources such as tractor by traction mechanism 41 when mobile,
It is moved by traction vehicle frame 42 by four wheels, when operation, is supported by stabilizer blade 43, and the stabilizer blade 43 can be with
Adjust bearing height, it is ensured that thermal cracking liquefying plant guarantees horizontal, standing.The trailer walking mechanism can be convenient by thermal cracking
Liquefying plant is drawn to the forest farm of agricultural-forestry biomass resource Relatively centralized, rural area carries out fast pyrolysis liquefaction production, realizes and moves
Dynamic factory operations save raw material collection and transportation cost, reduce production cost.
Below in conjunction with attached drawing, the work of miniature movable type agricultural and forest biomass fast pyrolysis liquefying plant of the present invention is discussed in detail
Make principle and the course of work:
As shown in Fig. 2, the biomass powder in hopper 16 passes through butterfly valve 17 under the effect of gravity enters Pressure chamber 18, flowing
Change in bed and spouted pipe 19 under spouted gas effect, uniform, discrete, quick, the stable charging of realization avoids the occurrence of bridge formation, wall built-up
Deng uneven charging phenomenon.Butterfly valve 17 is closed in fill process, plays sealing, pressure stabilization function；Counnter attack jet branch pipe 21 is being fed
It closes, is opened under non-feed state in the process, prevent material in the double-fluidized-bed reactor 2 of bushing type from regurgitating.
As shown in figure 3, the biomass powder conveyed from the spouted dual strength feeder 1 of fluidized bed-by feed pipe 28 into
The fluidized bed reaction zone for entering the double-fluidized-bed reactor 2 of bushing type carries out biomass through pyrolysis reaction, and heat transfer zone high-temperature flue gas is made a living
Pyrolytic cracking provides heat.Wherein, the high-temperature flue gas that the burning of combustion furnace 3 generates tangentially enters annular heat transfer zone, through annulus
Air distribution plate 27 blows the heat exchange efficiency of bed material enhancing and 24 reaction zone of inner tube, and the high-temperature flue gas after heat exchange passes through back smoke pipe 26 into spiral shell
Spiral plate exchanger 29, preheats fluidized carrier gas, and fluidized carrier gas blows bed material and biomass powder on reactor air distribution plate 30
It is sufficiently mixed, fluidizes, enhance heat transfer efficiency, abundant thermal cracking.Thermal cracking gas and solid carbon mixture through 31 gas outlet of end socket into
Enter cyclone separator 4, realize that thermal cracking gas and solid carbon efficiently separate, fixed carbon falls into collection charcoal case 5, and thermal cracking gas enters spray
Penetrate-spray composite condenser 9.
As shown in figure 4, thermal cracking gas tangentially enters air and liquid mixer 32 from thermal cracking gas import 33, liquid and thermal cracking are sprayed
Gas carries out condensation by mixing liquefaction, imports bottom pyrolysis oil by diversion pipe 38, the thermal cracking gas of non-total condensation is with the shape of bubble
Formula is emerged, and carries out time condensation to thermal cracking gas by inside and outside cooling coil 34 from bottom to up, while spray thrower 39 is to inside and outside cold
But coil pipe 34 carries out auxiliary spray condensation liquefaction, wherein is connected with recirculated cooling water in cooling coil 34, is connected with water tank 7.Through
Thermal cracking gas becomes not condensible gas after overspray, spray condensation, successively passes through first order gas purifier 11 from gas outlet 40
With second level gas purifier 12, inside carries out tar removing, drying equipped with sorptive materials such as corncobs, to not condensible gas,
It prevents tar from depositing and blocking pipeline, guarantees equipment continuous and steady operation.
Filtered not condensible gas enters surge tank 15 through circulating fan 14, and surge tank 15 delays not condensible gas
It deposits, pressure stabilizing, surge tank outlet is divided into 5 tunnels, and wherein the road a, b is connected with the spouted dual strength feeder 1 of fluidized bed-, plays spray
Dynamic and fluidisation biomass powder effect, the road c uses as anti-blowback air, prevents from fluidizing in the double-fluidized-bed reactor 2 of bushing type
Gas pressure influences the fill process of the spouted dual strength feeder 1 of fluidized bed-, and the road d is as the double-fluidized-bed reactor 2 of bushing type
Fluidized carrier gas, play the role of fluidized bed material, enhancing heat exchange, the road e as substitution combustion gas use.
The high-temperature flue gas that the origin of heat of double-fluidized-bed 2 reaction zone of reactor of bushing type is generated in combustion furnace 3, combustion furnace 3
In equipment initial phase, heat is supplied by the high-temperature flue gas that the combustion air burning of the liquefied gas and combustion fan 13 of fuel gas bottle 6 generates
Give, after stable operation, using surge tank 15 the road d not condensible gas substitute Some gases, realize power self-support.
Specific embodiment:
Using larch particle as raw material, the miniature movable type agricultural and forest biomass fast pyrolysis for being 10kg/h using treating capacity
Liquefying plant carries out fast pyrolysis production:
The present apparatus is by the spouted dual strength feeder 1 of fluidized bed-, the double-fluidized-bed reactor 2 of bushing type, combustion furnace 3, whirlwind
Separator 4 collects charcoal case 5, fuel gas bottle 6, water tank 7, oil storage tank 8, injection-spray composite condenser 9, oil pump 10, level-one gas
Clarifier 11, secondary gas clarifier 12, combustion fan 13, circulating fan 14, gas buffer tank 15 are constituted, wherein fluidized bed-
Spouted 1 total height 1900mm of dual strength feeder, 61 ° of 16 inclination angle of hopper, 20 internal diameter of surge chamber, 200 mm；Bushing type double fluid
Bed 2 total height 1747mm of reactor, 24 internal diameter 180mm of inner tube, 25 internal diameter 273mm of outer tube, 30 percent opening of reaction zone air distribution plate are
1.17%, upper 120 mesh of laying steel wire mesh number；9 total height 2041mm of injection-spray composite condenser.
When device carries out production operation, start circulating fan 14, combustion fan 13 first, starts combustion furnace 3 to bushing type
Double-fluidized-bed reactor 2 is heated, and sets 550 DEG C of rated temperature；Recirculated cooling water is opened, to injection-spray composite type cold
Condenser 9 is cooled down；After reaching rated temperature, the spouted dual strength feeder 1 of fluidized bed-starts to feed, and starts charging rate
It is relatively slow, it is stepped up inlet amount according to double-fluidized-bed 2 temperature variations of reactor of bushing type, reaches setting inlet amount 10kg/
h；Stablize thermal cracking work after (30min), can not condensing gas stability of flow in 30m3/ h or so uses not condensible gas substitution portion
Divide combustion gas to enter combustion furnace 3 to burn, is stepped up substitution rate, 50% or so can be reached, realize the partly self-supporting of the energy；And
When collect collection charcoal case in solid carbon and injection-spray composite condenser 9 in pyrolysis oil；In device operational process, pay attention to
Observe pressure change in the spouted dual strength feeder 1 of fluidized bed-, in the double-fluidized-bed reactor 2 of bushing type temperature fluctuation and
15 pressure of surge tank, changes in flow rate guarantee safety, the even running of system.
After heat scission reaction, when shutdown, should be noted that shutdown sequence: be first shut off the spouted dual strength charging of fluidized bed-
Device 1 stops charging, successively closes combustion fan 13, combustion furnace 3, stops heating, circulating fan 14 works at this time, wait cover
Double-fluidized-bed 2 temperature of reactor of tubular type drops to 100 DEG C hereinafter, closing circulating fan 14, and closing recirculated cooling water is shut down and completed.
In one embodiment of the present of invention, the spouted dual strength feeder of the fluidized bed-, the feeder includes material
Bucket, butterfly valve, Pressure chamber, spouted pipe, conveying pipeline and fluidized-bed structure, wherein fluidized-bed structure includes gas buffer room and cloth wind
Plate passes through flanged joint between each component.Hopper and horizontal sextant angle are greater than 45 °；Pressure chamber is cylinder, and diameter is in 0.2m-
Between 0.5m, highly between 0.3m-0.6m；The air distribution plate aperture of fluidized-bed structure is equilateral triangle or concentric circumferences cloth
It sets, percent opening is between 0.3%-1%.
Claims (1)
1. a kind of miniature movable type agricultural and forest biomass fast pyrolysis liquefying plant, it is characterised in that spouted double including fluidized bed-
Weight strength feeder, the double-fluidized-bed reactor of bushing type, combustion furnace, cyclone separator, collection charcoal case, fuel gas bottle, water tank, oil storage
Tank, injection-spray composite condenser, level-one gas purifier, secondary gas clarifier and gas surge tank；The fluidisation
The outlet of bed-spouted dual strength feeder is connected with the feed pipe of the spouted dual strength feeder inner tube lower part of fluidized bed-,
The outlet of the combustion furnace is connected with the outer tube of the double-fluidized-bed reactor of bushing type, the double-fluidized-bed reactor of bushing type it is upper
Portion outlet is connected with the import of cyclone separator, the upper outlet and injection-spray composite condenser of cyclone separator
Upper inlet is connected, and the collection charcoal case is placed in the lower part of cyclone separator, and injection-spray composite condenser lower part is set
There is two-way outlet, the way outlet in two-way outlet is connected with the oil storage tank, and another way outlet in two-way outlet is logical
It crosses oil pump to be connected with injection-spray composite condenser upper inlet, injection-spray composite condenser upper outlet
It is connected with the upper inlet of the level-one gas purifier, the lower part outlet of level-one gas purifier and the second level gas
The upper inlet of body clarifier is connected, and the lower part outlet of secondary gas clarifier passes through circulating fan and the gas buffer
The import of tank is connected, and gas buffer tank shares five road gas vents, and first via gas vent therein and fluidized bed-are spouted double
The Pressure chamber of weight strength feeder is connected, and the second road gas vent is slow with the spouted dual strength feeder lower part of fluidized bed-
It rushes room to be connected, third road gas vent is connected with the counnter attack jet branch pipe outside the spouted dual strength feeder Pressure chamber of fluidized bed-
Logical, the 4th road gas vent is connected with the spiral-plate heat exchanger of the double-fluidized-bed reactor bottom of bushing type, and the 5th road gas goes out
Mouth is connected with combustion furnace.
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| CN201810804269.3A CN109111940A (en) | 2018-07-20 | 2018-07-20 | A kind of miniature movable type agricultural and forest biomass fast pyrolysis liquefying plant |
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| CN201810804269.3A CN109111940A (en) | 2018-07-20 | 2018-07-20 | A kind of miniature movable type agricultural and forest biomass fast pyrolysis liquefying plant |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110510030A (en) * | 2019-08-23 | 2019-11-29 | 湖南商学院 | Vehicular pyrolysis plant and its safety device |
| CN113812669A (en) * | 2021-09-27 | 2021-12-21 | 浙江中烟工业有限责任公司 | Tobacco leaf raw material dry distillation fluidizing device |
| CN114042355A (en) * | 2021-09-27 | 2022-02-15 | 浙江中烟工业有限责任公司 | Tobacco leaf raw fluidized bed dry distillation product filtering system and cyclone separation process thereof |
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| CN106010604A (en) * | 2016-06-30 | 2016-10-12 | 北京林业大学 | Tubular bilateral fluidized bed rapid pyrolysis device |
| CN106590706A (en) * | 2016-12-21 | 2017-04-26 | 北京林业大学 | Vehicle-mounted biomass pyrolysis liquefaction system |
| CN206177745U (en) * | 2016-11-04 | 2017-05-17 | 北京林业大学 | Living beings microwave thermal cracking refining online analysis experimental apparatus |
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| CN104877694A (en) * | 2015-05-29 | 2015-09-02 | 北京林业大学 | Spiral-pulsed type pneumatic hybrid feeder for mobile biomass pyrolysis |
| CN106010604A (en) * | 2016-06-30 | 2016-10-12 | 北京林业大学 | Tubular bilateral fluidized bed rapid pyrolysis device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110510030A (en) * | 2019-08-23 | 2019-11-29 | 湖南商学院 | Vehicular pyrolysis plant and its safety device |
| CN113812669A (en) * | 2021-09-27 | 2021-12-21 | 浙江中烟工业有限责任公司 | Tobacco leaf raw material dry distillation fluidizing device |
| CN114042355A (en) * | 2021-09-27 | 2022-02-15 | 浙江中烟工业有限责任公司 | Tobacco leaf raw fluidized bed dry distillation product filtering system and cyclone separation process thereof |
| CN114042355B (en) * | 2021-09-27 | 2023-03-21 | 浙江中烟工业有限责任公司 | Tobacco leaf raw fluidized bed dry distillation product filtering system and cyclone separation process thereof |
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