CN104479719A - Movable device and method for preparing liquid fuel by virtue of straw pyrolysis - Google Patents

Movable device and method for preparing liquid fuel by virtue of straw pyrolysis Download PDF

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Publication number
CN104479719A
CN104479719A CN201410659408.XA CN201410659408A CN104479719A CN 104479719 A CN104479719 A CN 104479719A CN 201410659408 A CN201410659408 A CN 201410659408A CN 104479719 A CN104479719 A CN 104479719A
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product
pyrolysis
gas
outlet
flue gas
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CN104479719B (en
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郭昊坤
杨帆
邵静怡
张会岩
肖睿
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Southeast University
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Southeast University
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    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING 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
    • C10G1/00Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
    • C10G1/002Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal in combination with oil conversion- or refining processes
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING 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
    • C10G1/00Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
    • C10G1/006Combinations of processes provided in groups C10G1/02 - C10G1/08
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING 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
    • C10G2300/00Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
    • C10G2300/10Feedstock materials
    • C10G2300/1011Biomass

Abstract

The invention provides a movable device and a method for preparing fuel oil by virtue of straw pyrolysis. The device comprises an inclined plate type collector (1), a biomass pulverizer (2), a dryer (3), a buffer storage tank (4), a biomass pyrolysis reactor (5), a product gas cyclone separator (6), a rotary dust collector (7), a condenser (8), a product return feeder (9), a flue gas return feeder (10), a flue gas cyclone separator (11), a tail gas treatment device (12), a product oil storage tank (13), an integrated electronic front end controller (14), a feeding and carrier gas supplier (15) and the like. The device system is arranged on a moving van which is driven to a field to convert biomasses into biological oil convenient to transport on the spot, and the details are as follows: straws are subjected to fast pyrolysis (500-600 DEG C) in a self-heating reactor to generate pyrolysis steam, and the hot steam is subjected to dust removal and condensation to obtain high-quality biological oil. The invention provides an effective path for preparing the fuel oil from biomasses at a low cost.

Description

The apparatus and method of mobile straw thermolysis preparing liquid fuel
Technical field
The invention belongs to biomass pyrolytic field, relate to the method and apparatus carrying out biomass pyrolytic in moving.
Background technology
For realizing Sustainable development, since 2000, the Chinese government invests renewable energy source always energetically, does one's utmost to reduce the dependence to coal resources.Within 2011, China becomes the largest country of renewable energy utilization, and biomass energy is due to the advantage of its uniqueness, shows good application prospect.According to Chinese Academy of Agricultural Sciences's estimation, China's stalk output occupies the first in the world, accounts for 18.83% of global stalk ultimate production.But it is high that straw utilization also exists transport compiling costs, the problem that the energy density of resource own is low, therefore current most of stalk goes out of use or directly burns in field, and this not only causes the waste of the energy, also causes to a certain extent as problem of environmental pollutions such as hazes.
Existing many concern Wood Adhesives from Biomass are the research of fuel oil both at home and abroad.But existing most achievement in research all has complex structure in varying degrees, floor space is wide, maneuvering ability is poor, the problems such as underaction, be difficult to realize following marketization application, and also do not break through completely in some gordian techniquies (oil vapour how rapid condensation, how ash disposal fast, heat how efficient self-supporting etc.).
Therefore, design a kind of mobile straw thermolysis preparing liquid fuel device, biomass are converted on the spot the liquid fuel of easily transport and various byproduct, make full use of stalk resource, improve the utilising efficiency of renewable energy source, demand is very urgent.
Summary of the invention
Technical problem: at present technology only can by stalk with fixing or the equipment pyrolysis that travelling performance is poor obtains liquid fuel, and the liquid fuel impurities obtained is more.The shortcomings such as this class process exists long processing period, equipment takes up an area wide, transportation cost and cost of investment is high.Need the development process cycle badly short, there is good travelling performance, the new technology of the higher liquid fuel of purity can be prepared.
Technical scheme: for achieving the above object, the technical scheme of use is as follows: adopt by the reactor catalysis pyrolysis biomass of burner use nested with pyrolyzer, and the condensable of condensation pyrolysis generation has steam to prepare liquid fuel.This process can realize on the mobile device, compact construction, and technique is simple, and treatment cycle is short.Stalk completes pyrolysis in a reactor, and not condensable vapours reusable edible, product gas and flue gas all can enter reactor by feed back, achieve the maximum using of the energy and material.
The device of mobile straw thermolysis preparing liquid fuel of the present invention comprises:
Straw collecting and front-end processing system I, for collecting the stalk through initial stage harvesting from farmland, pulverize stalk and dry pre-treatment simultaneously;
Stalk pyrolysis and product separation gathering system II, being used for the stalk particle after to straw collecting and front-end processing system I process carries out pyrolysis, carries out dedusting and condensation process, finally obtain liquid fuel to the product gas generated;
Mobile vehicle-mounted system III, for carrying straw collecting and front-end processing system I and stalk pyrolysis and product separation gathering system II, and realizes locomotive function, thus makes device have good movability;
Wherein:
Straw collecting and front-end processing system I comprise ramp type collector, pulverizer, moisture eliminator, the buffer storage tank that sequential series is connected, and wherein ramp type collector is downward-sloping when stretching out, reach can with the length of earth surface;
Stalk pyrolysis and product separation gathering system II comprise pyrolysis reactor, product cyclconic wind separator, rotary dust remover, condenser, product material returning device, flue gas cyclone separator, flue gas material returning device, exhaust gas processing device, product storage, integrated type electrical front controller, feed and carrier gas feeder, wherein the entrance of feed and carrier gas feeder is connected with the outlet of buffer storage tank, the feeding mouth of pyrolysis reactor is connected with the outlet of feed and carrier gas feeder, the product gas outlet of pyrolysis reactor is connected with product cyclconic wind separator, product cyclconic wind separator product gas outlet is connected with rotary dust remover, rotary dust remover outlet is connected with condenser, condenser product exit is connected with product storage, the hydraulic fluid port of getting of product storage bottom is liquid fuel outlet, the upper outlet of product storage is not condensable gases outlet, export under product cyclconic wind separator and be connected with product material returning device, pyrolysis reactor exhanst gas outlet is connected with flue gas cyclone separator, flue gas cyclone separator upper outlet is connected with exhaust gas processing device, export under flue gas cyclone separator and be connected with flue gas material returning device, the outlet of flue gas material returning device is connected with the flue gas feedback outlet of pyrolysis reactor, and integrated type electrical front controller controls ramp type collector, pulverizer, moisture eliminator, pyrolysis reactor, rotary dust remover, condenser, exhaust gas processing device respectively.
Described pyrolysis reactor is divided into burning bed and pyrolysis bed, arranges the guide pipe connecting burning bed and pyrolysis bed in reactor, and guide pipe inserts in burning bed, guide pipe fluting bottom burning bed, and burning bed and guide pipe form annular space dipleg; The outlet of pyrolysis bed arranges product cyclone separator, and the standpipe between itself and product material returning device is operationally formed granule sealed, prevents burning gas and pyrolysis gas from going here and there mutually.
Described rotary dust remover profile is right cylinder, inside is covered with tiny passage from the bottom to top, rotate under the drive of motor, when pyrolysis gas enters the thin channel of rotary dust remover, due to the effect of power, dust falls, and through bottom, bucket clears out of fly-ash separator, and pyrolysis gas leaves rotary dust remover from upper outlet.
Mobile vehicle-mounted system III is a vehicle boarded device, chassis is supported by wheel and axle, chassis is carried each parts of straw collecting and front-end processing system I and stalk pyrolysis and product separation gathering system II, wherein the front end on chassis connects the telescopic ramp type collector of plate body, after plate body is stretched out, tilt to downwards can with the length of earth surface.
The method of mobile straw thermolysis preparing liquid fuel of the present invention is:
The biomass such as stalk are placed under inert bed material effect pyrolysis reactor to carry out rapid heating and be warming up to 500-600 DEG C of pyrolysis and generate pyrolysis steam, product gas is through dedusting and condensation, the bio oil of high-quality can be obtained, all return burning bed after the particle separation of carrying secretly in flue gas, realize recycle; Specifically comprise the steps:
First, the stalk particle handled well by straw collecting and front-end processing system I is added to feed and carrier gas feeder, drive stalk particle by carrier gas, it is added pyrolysis reactor from bottom, under normal pressure, temperature are 500-600 DEG C and inert bed material effect, carry out pyrolysis; Product gas leads to product cyclconic wind separator through pyrolysis reactor product gas outlet, product cyclconic wind separator gas is out through rotary dust remover dedusting, the particle that product gas is carried secretly is removed further, liquid fuel is obtained again through condenser condenses, flow in product storage and store as bio oil, and can obtain at the oily opening part of getting of bottom; Condensable gases does not enter a part and enters feed and carrier gas feeder and be used as carrier gas, and a part again can enter in pyrolysis reactor and utilize; The bed material carried secretly in product gas and coke solid matterization is separated enters product material returning device, then by feed back to pyrolysis reactor;
Flue gas leads to flue gas cyclone separator through pyrolysis reactor exhanst gas outlet, after most of particle is removed in the dedusting of cyclonic separator, gas enters exhaust gas processing device by upper outlet, and particulate matter enters flue gas material returning device via lower outlet, finally returns burning bed and realizes recycle;
The plate body that integrated type electrical front controller controls ramp type collector stretches, the motor switch of pulverizer, rotary dust remover and rotating speed, and moisture eliminator, pyrolysis reactor, condenser, the changing conditions of the flow velocity of gas, liquid substance, temperature, pressure and composition in exhaust gas processing device.
Beneficial effect: apparatus and method of the present invention have following characteristic and advantage: utilize nested pyrolysis zone, combustion zone special construction reactor, achieve the object of compact form.Stalk is antipyretic is converted into liquid fuel, and achieve can not the recycle of condensed product gas and high temperature inert material.Simple due to compact construction, for its movability brings facility, be mounted in after in mobile vehicle-mounted system, collection on the spot and the conversion of stalk can be realized, effectively shorten the production cycle, reduce transportation cost.And the recycle of product gas and high temperature inert material effectively reduces the content of nitrogen in product gas, decrease wastage of material simultaneously.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the method and apparatus of mobile straw thermolysis preparing liquid fuel of the present invention, Qi Zhongyou:
Ramp type collector 1, pulverizer 2, moisture eliminator 3, buffer storage tank 4, pyrolysis reactor 5, product cyclconic wind separator 6, rotary dust remover 7, condenser 8, product material returning device 9, flue gas cyclone separator 10, flue gas material returning device 11, exhaust gas processing device 12, product storage 13, integrated type electrical front controller 14, feed and carrier gas feeder 15.
Embodiment
The present invention will be described below with reference to accompanying drawings.
The invention provides a kind of method and apparatus of mobile straw thermolysis preparing liquid fuel.The method comprises the steps: that first stalk is collected and pulverization process by ramp type collector, buffer storage tank is entered after drying, drive by entering reactor pyrolysis bottom pyrolysis reactor through carrier gas equably, the product gas generated is divided into condensable vapours and non-condensable vapours, condensable vapours enters prolong after rotary dust remover dedusting, obtains liquid fuel after experience condensation; A uncondensable steam part uses as carrier gas after entering feed and carrier gas feeder, and a part enters recycle in reactor again.The high temperature inert material of combustion zone, product feed back and flue gas feed back all realize recycle, and the heat of flue gas enters moisture eliminator in order to dry stalk particle simultaneously.This device comprises ramp type collector, pulverizer, moisture eliminator, buffer storage tank, pyrolysis reactor, product cyclconic wind separator, rotary dust remover, condenser, product material returning device, flue gas cyclone separator, flue gas material returning device, exhaust gas processing device, product storage, integrated type electrical front controller, feed and carrier gas feeder.
The invention provides a kind of method and apparatus of mobile straw thermolysis preparing liquid fuel.The method comprises the steps: that first stalk is collected and pulverization process by ramp type collector, buffer storage tank is entered after drying, drive by entering reactor pyrolysis bottom pyrolysis reactor through carrier gas equably, the product gas generated is divided into condensable vapours and non-condensable vapours, condensable vapours enters prolong after rotary dust remover dedusting, obtains liquid fuel after experience condensation; A uncondensable steam part uses as carrier gas after entering feed and carrier gas feeder, and a part enters recycle in reactor again.The high temperature inert material of combustion zone, product feed back and flue gas feed back all realize recycle, and the heat of flue gas enters moisture eliminator in order to dry stalk particle simultaneously.The method comprises straw collecting and front-end processing system, stalk pyrolysis and product separation gathering system and mobile vehicle-mounted system.A whole set of devices such as ramp type collector, pulverizer, moisture eliminator, buffer storage tank, pyrolysis reactor, product cyclconic wind separator, rotary dust remover, condenser, product material returning device, flue gas cyclone separator, flue gas material returning device, exhaust gas processing device, product storage, integrated type electrical front controller, feed and carrier gas feeder realize.
Described straw collecting and front-end processing system I are made up of ramp type collector, pulverizer, moisture eliminator, buffer storage tank, stalk is collected laggard pulverizer of crossing by ramp type collector and is processed into stalk particle, removed the moisture wherein comprised by moisture eliminator, be finally stored in buffer.Utilize in order to stalk pyrolysis and product separation gathering system II.
Stalk pyrolysis and product separation gathering system II are made up of pyrolysis reactor, product cyclconic wind separator, rotary dust remover, condenser, product material returning device, flue gas cyclone separator, flue gas material returning device, exhaust gas processing device, product storage, integrated type electrical front controller, feed and carrier gas feeder.Stalk particle is pyrolysis in the reactor, and the product gas of generation is divided into condensable vapours and non-condensable vapours, and condensable vapours enters prolong after rotary dust remover dedusting, obtains liquid fuel after experience condensation; A uncondensable steam part uses as carrier gas after entering feed and carrier gas feeder, and a part enters recycle in reactor again.Achieve the maximum using of the energy and material.
See Fig. 1, the method and apparatus of described mobile straw thermolysis preparing liquid fuel provided by the invention.
Straw collecting and front-end processing system I, for by the straw collecting of field and pulverize dewater after store, as the supply of pyrolysis feed;
Stalk pyrolysis and product separation gathering system II, be used for the stalk that straw collecting and front-end processing system I store to carry out thermolysis preparing liquid fuel;
Mobile vehicle-mounted system III, for carrying straw collecting and front-end processing system I and stalk pyrolysis and product separation gathering system II, realizes movability.
First stalk is collected and pulverization process by ramp type collector, enters buffer storage tank after drying, is added equably under carrier gas drives by reactor bottom, at 550 DEG C, under normal pressure and superelevation heating rate, pyrolysis generates steam, after dedusting, condensing steam, liquid fuel flows into product storage.A uncondensable steam part uses as carrier gas after entering feed and carrier gas feeder, and a part enters recycle in reactor again.The heat of combustion zone is delivered to middle pyrolysis zone by high temperature inert material use particles circulating, product, and remaining in flue gas can materials, all again enter pyrolysis reactor by cyclonic separator and material returning device.
Straw collecting and front-end processing system I comprise ramp type collector 1, pulverizer 2, moisture eliminator 3, buffer storage tank 4, and wherein ramp type collector 1 is connected with pulverizer 2, and pulverizer 2 exports and is connected with moisture eliminator 3, and moisture eliminator 3 exports and is connected with buffer storage tank 4;
Straw collecting and front-end processing system I comprise ramp type collector 1, pulverizer 2, moisture eliminator 3, buffer storage tank 4, wherein ramp type collector 1 lower end and earth surface, ramp type collector 1 upper outlet is connected with pulverizer 2, pulverizer 2 exports and is connected with moisture eliminator 3, and moisture eliminator 3 exports and is connected with buffer storage tank 4;
Stalk pyrolysis and product separation gathering system II comprise pyrolysis reactor 5, product cyclconic wind separator 6, rotary dust remover 7, condenser 8, product material returning device 9, flue gas cyclone separator 10, flue gas material returning device 11, exhaust gas processing device 12, product storage 13, integrated type electrical front controller 14, feed and carrier gas feeder 15, wherein the entrance of feed and carrier gas feeder 15 is connected with the outlet of buffer storage tank 4, the feeding mouth of pyrolysis reactor 5 is connected with feed and carrier gas feeder 15, the product gas outlet of pyrolysis reactor 5 is connected with product cyclconic wind separator 6, product cyclconic wind separator 6 product gas outlet is connected with rotary dust remover 7, rotary dust remover 7 exports and is connected with condenser 8, condenser 8 product exit is connected with product storage 13, the hydraulic fluid port of getting of product storage 13 is liquid fuel outlet, the upper outlet of product storage 13 is not condensable gases outlet, the 6 times outlets of product cyclconic wind separator are connected with product material returning device 9, pyrolysis reactor 5 exhanst gas outlet is connected with flue gas cyclone separator 10, flue gas cyclone separator 10 upper outlet is connected with exhaust gas processing device 12, flue gas cyclone separator 10 times outlets are connected with flue gas material returning device 11, flue gas material returning device 11 exports and is connected with the flue gas feedback outlet of pyrolysis reactor 5, and integrated type electrical front controller 14 is connected with ramp type collector 1, pulverizer 2, moisture eliminator 3, pyrolysis reactor 5, rotary dust remover 7, condenser 8, exhaust gas processing device 12,
Mobile vehicle-mounted system III comprises wheel, axle, chassis, the mounting of external vehicle mouth, power set, and wherein wheel, axle, chassis are assembled into travelling car, mount mouth and power set is connected with external vehicle.
Stalk pyrolysis and product separation gathering system II, pressure is normal pressure, superelevation heating rate, the ultrashort product residence time, neutral temperature.
Present invention also offers a kind of method of mobile straw thermolysis preparing liquid fuel, the method comprises the steps: first by straw collecting process, then to its pyrolysis, after dedusting, condense condensable steam prepares liquid fuel, then will condensable vapours circulation not be used as feed material carrier gas or pass into reactor cycles utilization.
The method comprises the steps: that first stalk is collected and pulverization process by ramp type collector, buffer storage tank is entered after drying, added by reactor bottom equably under carrier gas drives, at 550 DEG C, under normal pressure and superelevation heating rate, pyrolysis generates steam, after cyclone separation and dedusting, condensation organic vapor, liquid fuel flows into product storage.A condensable vapours part is not used as carrier gas, and a part is led to back pyrolysis reactor and realized recycle.The heat of combustion zone is delivered to middle pyrolysis zone by particles circulating by the high temperature inert material surrounding the combustion zone of pyrolysis zone.
The product feed back that product cyclone separator is separated flows into product material returning device, all returns combustion zone recycling.
The product feed back that flue gas cyclone separator is separated flows into product material returning device, and all return combustion zone recycling, the tail gas separated can be passed to moisture eliminator in order to dry stalk by heat.
In this example, stalk directly can gather from field through portable collection device, pulverize as diameter is the stalk particle of 3cm after the preliminary treatment of front end, buffer storage tank is entered again after drying process, pyrolysis reactor is entered: at 550 DEG C under carrier gas drives, under normal pressure and superelevation heating rate, pyrolysis generates steam, remaining semicoke and inert bed material inertial separation in pyrolysis bed, again enter in burning bed and form internal particle circulation; The condensation after rotary dust remover dedusting of pyrolysis steam, liquid fuel enters product storage; The uncondensable steam that stalk particle pyrolysis produces, a part enters in feed and carrier gas feeder and uses as carrier gas, another part passes into pyrolysis reactor and realizes recycle, residue in product gas, flue gas can materials, all again enter pyrolysis reactor by respective material returning device, just realized the recycle of whole pyrolytic process by said process.A whole set of pyrolysis plant is reasonably placed on the good collection car of movability again, significantly enhances the practicality of equipment.
Aforesaid method is only more satisfactory embodiment of the present invention; protection scope of the present invention is not limited with above-mentioned embodiment; in every case those of ordinary skill in the art modify or change according to the equivalence that disclosed content is done, and all should include in the protection domain recorded in claims.

Claims (5)

1. a device for mobile straw thermolysis preparing liquid fuel, is characterized in that: this device comprises:
Straw collecting and front-end processing system I, for collecting the stalk through initial stage harvesting from farmland, pulverize stalk and dry pre-treatment simultaneously;
Stalk pyrolysis and product separation gathering system II, being used for the stalk particle after to straw collecting and front-end processing system I process carries out pyrolysis, carries out dedusting and condensation process, finally obtain liquid fuel to the product gas generated;
Mobile vehicle-mounted system III, for carrying straw collecting and front-end processing system I and stalk pyrolysis and product separation gathering system II, and realizes locomotive function, thus makes device have good movability;
Wherein:
Straw collecting and front-end processing system I comprise ramp type collector (1), pulverizer (2), moisture eliminator (3), the buffer storage tank (4) that sequential series is connected, wherein ramp type collector (1) is downward-sloping when stretching out, reach can with the length of earth surface;
Stalk pyrolysis and product separation gathering system II comprise pyrolysis reactor (5), product cyclconic wind separator (6), rotary dust remover (7), condenser (8), product material returning device (9), flue gas cyclone separator (10), flue gas material returning device (11), exhaust gas processing device (12), product storage (13), integrated type electrical front controller (14), feed and carrier gas feeder (15), wherein the entrance of feed and carrier gas feeder (15) is connected with the outlet of buffer storage tank (4), the feeding mouth of pyrolysis reactor (5) is connected with the outlet of feed and carrier gas feeder (15), the product gas outlet of pyrolysis reactor (5) is connected with product cyclconic wind separator (6), product cyclconic wind separator (6) product gas outlet is connected with rotary dust remover (7), rotary dust remover (7) outlet is connected with condenser (8), condenser (8) product exit is connected with product storage (13), the hydraulic fluid port of getting of product storage (13) bottom is liquid fuel outlet, the upper outlet of product storage (13) is not condensable gases outlet, under product cyclconic wind separator (6), outlet is connected with product material returning device (9), pyrolysis reactor (5) exhanst gas outlet is connected with flue gas cyclone separator (10), flue gas cyclone separator (10) upper outlet is connected with exhaust gas processing device (12), under flue gas cyclone separator (10), outlet is connected with flue gas material returning device (11), flue gas material returning device (11) outlet is connected with the flue gas feedback outlet of pyrolysis reactor (5), integrated type electrical front controller (14) controls ramp type collector (1) respectively, pulverizer (2), moisture eliminator (3), pyrolysis reactor (5), rotary dust remover (7), condenser (8), exhaust gas processing device (12).
2. the device of a kind of mobile straw thermolysis preparing liquid fuel according to claim 1, it is characterized in that: described pyrolysis reactor (5) is divided into burning bed and pyrolysis bed, the guide pipe connecting burning bed and pyrolysis bed is set in reactor, guide pipe inserts in burning bed, guide pipe fluting bottom burning bed, burning bed and guide pipe form annular space dipleg; The outlet of pyrolysis bed arranges product cyclone separator (6), and the standpipe between itself and product material returning device (9) is operationally formed granule sealed, prevents burning gas and pyrolysis gas from going here and there mutually.
3. the device of a kind of mobile straw thermolysis preparing liquid fuel according to claim 1, it is characterized in that: described rotary dust remover (7) profile is right cylinder, inside is covered with tiny passage from the bottom to top, rotate under the drive of motor, when pyrolysis gas enters the thin channel of rotary dust remover (7), due to the effect of power, dust falls, through bottom, bucket clears out of fly-ash separator, and pyrolysis gas leaves rotary dust remover (7) from upper outlet.
4. the device of a kind of mobile straw thermolysis preparing liquid fuel according to claim 1, it is characterized in that: mobile vehicle-mounted system III is a vehicle boarded device, chassis is supported by wheel and axle, chassis is carried each parts of straw collecting and front-end processing system I and stalk pyrolysis and product separation gathering system II, wherein the front end on chassis connects the telescopic ramp type collector (1) of plate body, after plate body is stretched out, tilt to downwards can with the length of earth surface.
5. the method for a mobile straw thermolysis preparing liquid fuel as claimed in claim 1, it is characterized in that, the biomass such as stalk are placed in pyrolysis reactor and carry out rapid heating and be warming up to 500-600 DEG C of pyrolysis and generate pyrolysis steam by the method under inert bed material effect, product gas is through dedusting and condensation, the bio oil of high-quality can be obtained, all return burning bed after the particle separation of carrying secretly in flue gas, realize recycle; Specifically comprise the steps:
First, the stalk particle handled well by straw collecting and front-end processing system I is added to feed and carrier gas feeder (15), stalk particle is driven by carrier gas, it is added pyrolysis reactor (5) from bottom, under normal pressure, temperature are 500-600 DEG C and inert bed material effect, carry out pyrolysis; Product gas leads to product cyclconic wind separator (6) through pyrolysis reactor (5) product gas outlet, product cyclconic wind separator (6) gas is out through rotary dust remover (7) dedusting, the particle that product gas is carried secretly is removed further, liquid fuel is obtained again through condenser (8) condensation, flow in product storage (13) and store as bio oil, and can obtain at the oily opening part of getting of bottom; Condensable gases does not enter a part and enters feed and carrier gas feeder (15) as carrier gas, and a part again can enter in pyrolysis reactor (5) and utilize; The bed material carried secretly in product gas and coke solid matterization is separated enters product material returning device (9), then by feed back to pyrolysis reactor (5);
Flue gas leads to flue gas cyclone separator (10) through pyrolysis reactor (5) exhanst gas outlet, after most of particle is removed in the dedusting of cyclonic separator, gas enters exhaust gas processing device (12) by upper outlet, particulate matter enters flue gas material returning device (11) via lower outlet, finally returns burning bed and realizes recycle;
Integrated type electrical front controller (14) controls that the plate body of ramp type collector (1) is flexible, the motor switch of pulverizer (2), rotary dust remover (7) and rotating speed, and moisture eliminator (3), pyrolysis reactor (5), condenser (8), the changing conditions of the flow velocity of gas, liquid substance, temperature, pressure and composition in exhaust gas processing device (12).
CN201410659408.XA 2014-11-18 2014-11-18 Movable device and method for preparing liquid fuel by virtue of straw pyrolysis Active CN104479719B (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
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CN105001895A (en) * 2015-07-17 2015-10-28 广州迪森热能技术股份有限公司 Bio-oil preparation system
CN105295972A (en) * 2015-11-18 2016-02-03 中国科学院地球化学研究所 Self-propelled combined biomass carbonization system
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