CN106675661B - A kind of method of material continuous pyrolysis gasification - Google Patents
A kind of method of material continuous pyrolysis gasification Download PDFInfo
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- CN106675661B CN106675661B CN201510740287.6A CN201510740287A CN106675661B CN 106675661 B CN106675661 B CN 106675661B CN 201510740287 A CN201510740287 A CN 201510740287A CN 106675661 B CN106675661 B CN 106675661B
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- 239000000463 material Substances 0.000 title claims abstract description 68
- 238000002309 gasification Methods 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 52
- 238000000197 pyrolysis Methods 0.000 title claims abstract description 36
- 238000006243 chemical reaction Methods 0.000 claims abstract description 101
- 239000000047 product Substances 0.000 claims abstract description 29
- 239000003054 catalyst Substances 0.000 claims abstract description 27
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 239000002893 slag Substances 0.000 claims abstract description 22
- 230000009471 action Effects 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 16
- 239000003039 volatile agent Substances 0.000 claims abstract description 14
- 239000012265 solid product Substances 0.000 claims abstract description 7
- 238000006057 reforming reaction Methods 0.000 claims abstract description 6
- 230000004913 activation Effects 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims abstract description 4
- 230000008569 process Effects 0.000 claims description 19
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 16
- 239000000571 coke Substances 0.000 claims description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 14
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 12
- 229910052799 carbon Inorganic materials 0.000 claims description 12
- 238000002407 reforming Methods 0.000 claims description 12
- 239000002028 Biomass Substances 0.000 claims description 11
- 229910044991 metal oxide Inorganic materials 0.000 claims description 11
- 150000004706 metal oxides Chemical class 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 10
- 238000010521 absorption reaction Methods 0.000 claims description 9
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- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical class [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 9
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- 230000005484 gravity Effects 0.000 claims description 7
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- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 229910000000 metal hydroxide Inorganic materials 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 5
- 230000008676 import Effects 0.000 claims description 4
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims description 4
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 4
- 229910000480 nickel oxide Inorganic materials 0.000 claims description 3
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 claims description 3
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- 235000007164 Oryza sativa Nutrition 0.000 claims description 2
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- 240000008042 Zea mays Species 0.000 claims description 2
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 2
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 2
- 239000002802 bituminous coal Substances 0.000 claims description 2
- 239000000920 calcium hydroxide Substances 0.000 claims description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 2
- 235000005822 corn Nutrition 0.000 claims description 2
- 230000006866 deterioration Effects 0.000 claims description 2
- 235000021050 feed intake Nutrition 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 239000010903 husk Substances 0.000 claims description 2
- 239000003077 lignite Substances 0.000 claims description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 2
- 239000000347 magnesium hydroxide Substances 0.000 claims description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 2
- 239000004058 oil shale Substances 0.000 claims description 2
- 239000010815 organic waste Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- 235000009566 rice Nutrition 0.000 claims description 2
- JPJALAQPGMAKDF-UHFFFAOYSA-N selenium dioxide Chemical compound O=[Se]=O JPJALAQPGMAKDF-UHFFFAOYSA-N 0.000 claims description 2
- 239000010907 stover Substances 0.000 claims description 2
- 239000010902 straw Substances 0.000 claims description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims 1
- 235000019504 cigarettes Nutrition 0.000 claims 1
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 238000003786 synthesis reaction Methods 0.000 description 5
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 4
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 4
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
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- 229940056319 ferrosoferric oxide Drugs 0.000 description 2
- 238000001722 flash pyrolysis Methods 0.000 description 2
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- 239000000377 silicon dioxide Substances 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
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- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 1
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- 230000003197 catalytic effect Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
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- 238000010924 continuous production Methods 0.000 description 1
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- 239000000428 dust Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
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- 229910052737 gold Inorganic materials 0.000 description 1
- 238000009396 hybridization Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
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- -1 hydrogen Potassium oxide Chemical class 0.000 description 1
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Abstract
The invention discloses a kind of methods of material continuous pyrolysis gasification, including following content: (1) raw material and catalyst enter microwave-heating gasification system, drop down onto the level-one rotating circular disk of microwave reaction chamber and as rotation is successively by dry, activation and pyrolysis processing；(2) material after pyrolysis processing falls into the second level rotating circular disk of microwave reaction chamber and continues gasification and reforming reaction under the action of vapor together with volatiles；(3) solid product handled through step (2), baffle is promoted to fall into from the intermediate aperture of second level rotating circular disk the slag ladle below microwave reaction chamber by second level, reaction system is discharged in the case where stirring mixing worm double action, and gaseous product then enters expansion chamber by the annular sieve plate in microwave reaction bottom of chamber portion, obtains gasification product through settlement treatment.This method rate of cleavage is fast, gasification efficiency is high, obtains gas products quality height, can satisfy the requirement of synthetic liquid fuel, have applications well prospect.
Description
Technical field
The present invention relates to a kind of methods of material continuous pyrolysis gasification.
Background technique
Traditional heating mode is from outward appearance to inner essence heated by radiation, convection current and conduction, in order to avoid temperature gradient mistake
Greatly, heating speed tends not to too fast, and selective heating can not be carried out to each component of material.Since microwave can directly be worn
It penetrates into inside material, compared with traditional heating mode, material inside and outside equilibrium heating is may be implemented in microwave heating, has heating speed
The advantage that rate is fast, energy utilization efficiency is high, and the component that microwave can be different to material intermediary electrical characteristics carries out selective heating.
Therefore the particularity of microwave heating makes its thermal decomposition product have greater advantages compared with traditional gasification technology, is that one kind has prospect very much
Material heating method.
Using intermittent fixed bed as the microwave technology of representative although realize material microwave-heating gasification etc. a series of mistakes
Journey but can't resolve the serialization and scale-up problem of microwave heating process, and the microwave heating technique of serialization is then to realize
The only way of microwave large-scale application.The continuous process of microwave current pyrolytic gasification mainly includes rotary kiln, steel band kiln, spiral shell
Revolve channel kiln, disk rotary rotary kiln etc..Wherein, rotary kiln has that kiln body sealing and gas carrying amount of dust are big, steel band kiln
The change of steel band micro-wave dielectric can occur at high temperature causes deformation to lead to security risk, the lower shadow of helical duct kiln material compactedness
Heating efficiency is rung, and common problem existing for above-mentioned several method is to be difficult to simultaneously amplify in dimension, this gives birth to processing
The various lots of material such as substance, coal is clearly not applicable.
Disk rotary rotary kiln is to be heated using material in circular motion on pallet, and theoretically disk often rotates a circle,
A cracking process is completed, while revolving speed can be adjusted according to material properties to control pyrolytic gasification process, its biggest characteristic is that
It avoids passing through and extends certain dimension to guarantee the problem of material is sufficiently pyrolyzed, realize reactor various dimensions in a certain range
It simultaneously amplifies, is conducive to the scale and industrialization of microwave reactor.CN201310263370.X discloses a kind of disk and declines
Wave continuous cracking device and its method for cracking waste old crack cavity using disc type, and pass through nonmetallic sealing
Plate is divided into upper and lower cavities, and wherein microwave generator is on the top of cavity, and solid product export conveying is in lower part, and this layout is not only
The continuity of cracking process is realized, and improves waste tire microwave cracking efficiency, the ratio of products therefrom is about can
Combustion gas body 40%, liquid oil 10%, carbon black 50%.But on reaction chamber top, there are pyrolysis devolatilizations by microwave generator setting for this method
Divide pollution microwave guiding device and Microwave-Transparent Materials windowsill, and then microwave energy is caused to assemble damage microwave component herein.
CN201180072503.4 proposes that, from reaction chamber lower part introducing microwave, the volatiles of generation can be taken out from reaction chamber top
Out, the problem of avoiding microwave generator pollution, at the same it is rectangular at preferable microwave energy region on a rotary disc, be conducive to
The microwave-assisted fast flash pyrolysis cracking of formula.But the arrangement of microwave source is only limitted to the lower part of reaction chamber in this method, and spatial position is limited,
To realize fast flash pyrolysis cracking, need to be equipped with high power magnetron to increase microwave field strength, this can increase considerably cost.
Summary of the invention
In view of the shortcomings of the prior art, the present invention provides a kind of method of material continuous pyrolysis gasification, this method cracking speed
Degree is fast, gasification efficiency is high, obtains gas products quality height, can satisfy the requirement of synthetic liquid fuel, before having applications well
Scape.
The method of material continuous pyrolysis gasification of the invention, including following content:
(1) microwave-heating gasification system is entered by the raw material of helical feed and catalyst, dropped down under the effect of gravity micro-
The level-one rotating circular disk of wave reaction chamber simultaneously successively passes through dry, activation and pyrolysis processing with rotating；
(2) material after pyrolysis processing falls into the second level rotating circular disk of microwave reaction chamber under the action of level-one promotes baffle
And continue gasification and reforming reaction under the action of vapor together with volatiles；
(3) solid product handled through step (2), including catalyst, coke and ash content by second level promote baffle from
The intermediate aperture of second level rotating circular disk falls into the slag ladle below microwave reaction chamber, is discharged in the case where stirring mixing worm double action anti-
System is answered, and gaseous product then enters expansion chamber by the annular sieve plate in microwave reaction bottom of chamber portion, obtains gasification through settlement treatment and produces
Product.
In the method for the present invention, raw material described in step (1) is the substance for referring to decompose under the high temperature conditions, including
Biomass, trade waste, coal, oil shale etc., wherein biomass include corn stover, rice husk, straw, wooden unit, leaf or
Any biomass containing lignocellulosic such as branch, trade waste include waste plastic, waste rubber tire, municipal refuse
Equal organic wastes, coal includes the lignite, lower-grade metamorphic bituminous, mesometamorphism bituminous coal and high deterioration coal of any low caking index.It is former
Material shape can be the substance including any shapes such as sheet material, circle, cylinder, taper, cuboids, and raw material maximum direction size is not
More than 50mm, preferably 5 ~ 10mm.
In the method for the present invention, the raw material and catalyst of step (1) enter microwave reaction chamber by screw-feeder and are weighing
Power acts on free-falling to level-one rotating circular disk, and 300 ~ 600 DEG C for the treatment of temperature, power density 1 × 105~6×105W/m3, charging
1 ~ 10kg/h of rate, due to level-one rotating circular disk be pyrolysis zone, higher temperature can make raw material successively occur dehydration, activation and
Pyrolytic process 1 ~ 10 minute processing time of whole process, can be rotated according to the selection of feedstock property and catalyst by level-one
Disc rotation speed specifically handles the time to control.In microwave field, the hydrone in raw material is conducive to improve heating rate, and takes off
Water process can change material structure again, play the role of activation, further increase pyrolysis or catalytic pyrolysis degree, generate simultaneously
Vapor may also participate in the reaction such as cracking, oxidation, reduction and reformation in gasification reformer section, play similar gasification gas
Effect, reduces exogenous vapor dosage.Raw material be converted to after catalytic pyrolysis is handled most of pyrolysis devolatilization product with
And a small amount of semicoke, wherein semicoke accounts for 10% ~ 20%, and volatiles account for 80% ~ 90%, can including about 10% ~ 30% in volatiles
Condensability component.
In the method for the present invention, catalyst described in step (1) is by charcoal class microwave absorption, metal oxide and hydroxide
Three parts composition, charcoal class microwave absorption as carrier, metal oxide and hydroxide as active component, wherein metal oxygen
Compound accounts for the 1% ~ 10% of catalyst quality, and hydroxide accounts for the 1% ~ 10% of catalyst quality, and surplus is carrier；Charcoal class microwave absorption
Agent includes active carbon, biological coke, graphite etc., and preferably biology is burnt；Metal oxide is the metal oxide with both sexes, including oxygen
Change the combination of one or more of nickel, titanium oxide, zirconium oxide, lanthana, selenium oxide, aluminium oxide etc., preferably nickel oxide；Hydroxide
Object includes the combination of one or more of potassium hydroxide, sodium hydroxide, lithium hydroxide, calcium hydroxide, magnesium hydroxide etc., preferably hydrogen
Potassium oxide.Above-mentioned catalyst and biomass material feed intake mass ratio as 1:2 ~ 1:20.
The preparation method of biomass pyrolytic catalyst of the invention, including following content: by charcoal class microwave absorption, metal
Oxide and hydroxide mixing are placed in ball mill, under room temperature ball-milling treatment, are then mixed above-mentioned crushing mixed
It closes object to be added in double screw extruder, extruding pelletization obtains product.
100 ~ 150 revs/min of the rotational speed of ball-mill, processing time are 2 ~ 8 hours；
The extrusion condition is as follows: 25 ~ 60 DEG C of extrusion temperature, extruded velocity is 0.05 ~ 0.15mm/s, extruder head length
For 6 ~ 20mm, extrusion diameter is 0.5 ~ 2mm.
In the method for the present invention, step (2) gasification and reforming reaction temperature are 600 ~ 800 DEG C, 1 ~ 10 point of the reaction time
Clock, power density 6 × 105~10×105W/m3, 1 ~ 10m of import vapor flow3/ h, wherein entering the water of gasification reforming zone
Vapor flow rate is in 0.5 ~ 5m3/ h, remaining vapor can repeat reuse by hollow rotating shaft, and the temperature of vapor is 120 ~
200℃.Gasification reforming process in, the semicoke formed from pyrolytic process can inhale rapidly wave heating, accelerate coke tar cracking at
Light oil even micro-molecular gas, and volatile component under the action of vapor in semicoke can not only be released further,
And biological burnt surface carbon deposit can be eliminated, while can also be catalyzed CxHyAnd CO2The conversion reaction of synthesis gas is carried out, is further dropped
Low solid-liquid content improves charcoal conversion ratio.Reform that treated gas account for 90 ~ 95% by gasification, tar content 0.01 ~
0.1%, semicoke 5 ~ 10%.
In the method for the present invention, step (3) catalyst, coke and ash content still maintain higher after dropping into slag ladle
Temperature enables coke temperature to reach 600 ~ 800 DEG C due to the body heat effect mechanism of microwave, and so high temperature can
The vapor for heating hollow rotating shaft also can guarantee that gaseous product by remaining gaseous state when sieve plate and settlement treatment, mentions
High energy regenerating utilization efficiency.
In the method for the present invention, sieve plate described in step (3) be convex sieve plate, convex 1 ~ 10cm of length, hole diameter of sieve (perforated) plate Φ 1 ~
Φ 5mm, it is 10 ° ~ 60 ° that sieve plate, which tilts down angle,.Such design can reduce the particle carrying amount in gas, while again can
Unsifted particle is imported into slag ladle by sieve plate inclined-plane.
In the method for the present invention, settlement treatment described in step (3) uses multi-layer settlement room, extends the residence time of gas,
The settling efficiency that particle is carried in gas is improved, while it is anti-with the generation of high-temperature particle charcoal also to promote the vapor in gas to continue
It answers, further decreases the solid carrying amount of gas.Finally obtained gasification product H2/ CO is between 1.5 ~ 2.2, tar content 10
~20mg/m3, the conversion efficiency of whole process biological carbon is 90 ~ 98%.
Present invention simultaneously provides a kind of material continuous microwave pyrolysis gasification system, including screw-feeder, microwave reaction chamber,
Microwave generator, level-one rotating circular disk, second level rotating circular disk, hollow rotating shaft, sieve plate, expansion chamber, slag ladle and spiral deslagging
Device；Screw-feeder is located at microwave reaction chamber top；Microwave generator is set outside microwave reaction chamber；The intracavitary portion of microwave reaction is set
There are level-one rotating circular disk and second level rotating circular disk, two-stage rotating circular disk is fixed by hollow rotating shaft；On hollow rotating shaft top
It is connected with level-one and promotes baffle, hollow rotating shaft bottom end is connected with vapor reuse pipe；Second level rotating circular disk top is equipped with metal liner
Pipe, metal liner are connected with second level and promote baffle；Microwave reaction bottom of chamber portion is annular shape, is made of the sieve plate tilted down, sieve plate
Expansion chamber is connected below (annulus annular section), expansion chamber is arranged gas products and exports；The non-sieve plate portion in microwave reaction bottom of chamber portion
Divide (circular small circular portion) to communicate with lower section slag ladle, has blender in slag ladle, and communicate with spiral slag-discharging device.
Wherein, the microwave-heating reaction chamber exterior lateral sides are distributed a certain number of microwave quartz windows, each window
The power of a corresponding microwave generator, single microwave generator is 500 ~ 2000W, is arranged according to situations such as volume of reactor
Specific number of windows is generally arranged 4 ~ 50, guarantees the power density in reactor 1 × 105~10×105W/m3。
The microwave-heating gasification system uses vertical moving-burden bed reactor, is divided according to setting rotating circular disk different
Reaction interval, level-one rotating circular disk top (including level-one rotating circular disk) be pyrolysis zone, 300 ~ 600 DEG C of temperature；Level-one rotation
Between disk and second level rotating circular disk (including second level rotating circular disk) be gasification reforming zone, 600 ~ 800 DEG C of temperature.Each area
Temperature is controlled by corresponding microwave generator, in order to avoid being controlled because of temperature caused by biomass uneven heating even there is folder
Raw problem, the present invention in all microwave temperature control mechanisms all use continuous power to be adjusted to ensure that the full-time absorption microwave of material and add
Heat.
The microwave reaction chamber is equipped with two-stage rotating circular disk, and wherein level-one rotating circular disk is the circular cone knot without bottom surface portions
Structure, circular cone basal diameter are the 1/2 ~ 4/5 of the intracavitary diameter of microwave reaction, and the angle of round element of a cone and horizontal direction is 10 ~ 45 °；
Second level rotating circular disk is the handstand frustum cone structure of supreme bottom surface part, the bottom surface of rotary table (second level rotating circular disk it is upward one
Side) diameter is the 1/100 ~ 1/10 of the intracavitary diameter of microwave reaction, the diameter of the upper bottom surface of rotary table be the intracavitary diameter of microwave reaction 1/5 ~
1/2, the bus of rotary table and the angle of horizontal direction are 10 ~ 45 °.Firsts and seconds rotating circular disk is supported by disk bottom metal
Part is fixed on hollow rotating shaft, and metallic supports are connected and fixed by bolt and rotating circular disk.
Two-stage rotating circular disk structure of the present invention can carry out processing and fabricating according to existing processing technology, can be primary
Molding, can also be made according to such as flowering structure.
Wherein, the structure of the level-one rotating circular disk is as follows: supporting (Fig. 4) two parts structure by disk (Fig. 3) and metal
At disk is made of the eccentric circular ring armor of four pieces of material same dimensions of the same race around identical central angle, the central angle of every block size
It is 90 °, the minimum concentric circles internal diameter of level-one disk is equal or slightly larger than hollow rotating shaft outer diameter；The material of disk is inorganic hybridization
Material is selected from one or more of silica, silicon carbide, silicon nitride, aluminium oxide, ferroso-ferric oxide, zirconium oxide, magnesia
Combination；Metal support by several metal concentric loop 4-1,4-2,4-3 ... the circular cone " outer inclined-plane " that is made up of welding manner and
Four groups of plate (plate of every group of to include a pair of be in enantiomorphic relationship, such as 4a ' and 4a ", 4b ' and 4b ' ', 4c ' and 4c ' ', 4d ' and
4d ' ') welding on constitute " muscle " composition (Fig. 4), wherein the smallest metal concentric loop 4-1 is directly welded in hollow rotating
Axis 6 is fixed, and the angle of " outer inclined-plane " and horizontal direction is 10 ~ 45 °, in four groups of plates, 4a ' and 4a ", 4b ' and
In " outer inclined-plane " (Fig. 5), 4c ' and 4c ' ', 4d ' and 4d ' ' paperbacked welding in " outer inclined-plane " (Fig. 6), two groups hang down 4b ' ' vertical welding
Straight or angle is 90 ° between being laid in the plate on " outer inclined-plane ", every group vertical and every group is laid in angle between the plate on " outer inclined-plane "
It is 45 °.Four groups of plate 4a ' and 4a ", 4b ' and 4b ' ', 4c ' and 4c ' ', 4d ' and the outer end 4d ' ' are separately connected the inside arc in the center of circle
Shape metal baffle 4-1a ' and 4-1a ' ', 4-1b ' and 4-1b ' ', 4-1c ' and 4-1c ' ', 4-1d ' and 4-1d ' ' (Fig. 5 and Fig. 6),
Metal baffle can be used for the fixation of disk equipped with bolt.
The structure of the second level rotating circular disk is as follows: second level rotating circular disk by disk and metal support form, disk by
The eccentric circular ring armor of four pieces of material same dimensions of the same race is formed around identical central angle, and the central angle of every block size is 90 °, second level
The minimum concentric circles internal diameter of disk is the 1/5 ~ 1/2 of the intracavitary diameter of microwave reaction；The material of disk is inorganic hybrid material, is selected from two
The combination of one or more of silica, silicon carbide, silicon nitride, aluminium oxide, ferroso-ferric oxide, zirconium oxide, magnesia；Second level rotation
Turn disk metal support by several metal concentric loop 5-1,5-2,5-3 ... the handstand rotary table being made up of welding manner is " interior
" muscle " composition (Fig. 8) constituted on inclined-plane " and four groups of plate (every group includes a pair of plate in enantiomorphic relationship) welding, wherein
The smallest metal concentric loop 5-1 is connected and fixed by metal electrode with hollow rotating shaft 6, the folder of " outer inclined-plane " and horizontal direction
Angle is 10 ~ 45 °, in four groups of plates, 5a ' and 5a ", 5b ' and 5b ' ' perpendicular to " outer inclined-plane " (Fig. 9), 5c ' and 5c ' ',
5d ' and 5d ' ' is laid in " outer inclined-plane " (Figure 10), and two groups vertical or angle is 90 °, every group between being laid in the plate of " outer inclined-plane "
Vertical and every group be laid in the plate of " outer inclined-plane " between angle be 45 °.Four groups of plate 5a ' and 5a ", 5b ' and 5b ' ', 5c ' and
5c ' ', 5d ' and 5d ' ' inner and outer ends all connect the center of circle inside curved metal baffle 5-1a ' and 5-1a ' ', 5-1b ' and 5-
1b ' ', 5-1c ' and 5-1c ' ', 5-1d ' and 5-1d ' ' (Fig. 9 and Figure 10), metal baffle can be used for the fixation of disk equipped with spiral.
The connection and fixation of level-one (second level) disk and metal support are by two groups perpendicular to " outer (interior) is oblique
Face " plate, two groups be laid in " outer (interior) inclined-plane " plate and curved metal baffle realizes jointly.Eccentric circular ring pan bottom passes through flat
It is laid on " outer (interior) inclined-plane " plate support, two edge grains of fan-shaped the ring disk perpendicular to " outer (interior) inclined-plane " plate by being wrapped
It encloses, the outer ring surface of fan-shaped the ring disk or inside and outside anchor ring are further reinforced by metal baffle and bolt.
The two-stage rotating circular disk is fixed by hollow rotating shaft, and hollow rotating shaft is through entire microwave cavity and storage slag
Tank, hollow rotating shaft are hollow structure, and inside can be passed through vapor isoreactivity gas；Rotary shaft is in level-one rotating circular disk and two
Several stomatas are partially distributed between grade rotating circular disk；Rotary shaft is equipped with outer tube on level-one rotating circular disk top, wherein outer tube
It welds level-one and promotes baffle, shape is parallelogram, parallelogram acute angle and level-one rotating circular disk inclination angle right angle each other,
Level-one promotes baffle as far as possible close to level-one rotating circular disk；In slag ladle part, axis outer layer welds rabbling mechanism, and rabbling mechanism is
Refer to any device or mode that can be played agitation and push material, including leaf formula paddle, anchor formula slurry, propeller mixer, turbine
Formula blender, dasher, anchor agitator etc..
In the present invention, microwave reaction chamber is made of the outer wall of metal and ceramic liner, including upper microwave reaction chamber is micro- under
Liner is respectively set in wave reaction chamber, and upper microwave reaction chamber corresponds to level-one rotating circular disk, and lower microwave reaction chamber corresponds to second level rotational circle
Disk, and pass through flanged joint and sealing.
It is not provided with microwave source at flange arrangement simultaneously, guarantees that interfering with each other for microwave reaction chamber microwave is substantially reduced up and down,
So that temperature is more easier to control.The upper intracavitary gallbladder of microwave reaction slides in order to prevent, in upper microwave reaction chamber metal outer wall bottom end
Internal diameter is welded on (on flange arrangement) is less than the circular metal liner of corresponding ceramic liner outer diameter to support.Similarly,
It is less than the annular shape of corresponding ceramic liner outer diameter in lower microwave reaction chamber metal outer wall top (under flange arrangement) welding internal diameter
Metal liner.One side metal inner lining is close to the lower intracavitary gallbladder of microwave reaction, and welding promotes baffle maximum on metal liner
Limit is also able to satisfy the further pyrolysis of second level rotating circular disk biology material (since liner is in close to second level rotating circular disk
Microwave source generation area).On the other hand, metal liner can also play fixed ceramic liner and seal the requirement of reactor.
In the present invention, the flange lower end between level-one rotating circular disk and second level rotating circular disk is connected with metal liner, gold
Belong to welding second level on bushing pipe and promote baffle, it is parallelogram that second level, which promotes baffle shapes, and parallelogram acute angle and second level are revolved
Turn disk inclination angle right angle each other, second level promotes baffle as far as possible close to second level rotating circular disk.
The present invention is not limited to two-stage rotating circular disks, according to specific needs, Multi-stage rotary disk and microwave reaction are arranged
Chamber, and pass through the connection of multiple flanges and the multistage continuous microwave pyrolytic gasification for promoting baffle design to realize material；Such as it is arranged more
Grade rotating circular disk, from top to bottom the structure of the rotating circular disk of the first order to penultimate stage is identical, the grade last rotation of lower part
It is identical as the second level rotating circular disk in two-stage rotating circular disk of the present invention to turn disc structure.
The slag ladle is located at immediately below microwave reaction chamber, and the internal diameter of slag ladle is greater than on the rotary table of second level rotating circular disk
Basal diameter is the 2/5 ~ 2/3 of the intracavitary diameter of microwave reaction；In slag ladle other than the rabbling mechanism in rotary shaft, spiral shell is arranged at bottom
Slagging mechanism is revolved, can ensure that material sufficiently reacts according to material accumulation situation control stirring and deslagging rate in reaction system
While, improve the treating capacity of whole system.
Compared with the prior art, the present invention has the following advantages:
1, there is a problem of serialization for existing microwave-heating gasification technology and amplify difficulty, having designed and developed has
The serialization disk rotary rotary kiln of Multi-stage rotary disk (at least two-stage) extends material in the residence time of microwave reaction chamber, promotes
The abundant progress of pyrolytic gasification, while being also beneficial to improve the treatment scale of single machine, overcome traditional disc rotary kiln single-stage to rotate
Take inventory be pyrolyzed it is insufficient and the problem of need high power magnetron just and can guarantee higher position reason amount.In addition, this multistage rotation
The serialization disk rotary rotary kiln of turntable more increased in height, and occupied area is small, it is easier to scale amplification and industrialization
Using.
2, the serialization disk rotary rotary kiln of Multi-stage rotary disk by inclined rotating circular disk and promotes baffle design, realizes
Continuous pyrolysis gasification of the material in reactor.The middle control rotary shaft of rotating circular disk, which is passed through low temperature vapor, simultaneously can guarantee water
The use temperature of steam, while also can be avoided middle control rotary shaft and being deformed because temperature is excessively high, prolong the service life.
3, the serialization disk rotary rotary kiln of Multi-stage rotary disk uses the microwave heating of reaction chamber side wall, and traditional microwave source is avoided to exist
Reaction chamber top is pyrolyzed volatile matter bonding or lower part by the hidden danger of biological burnt pollution, at the same side wall do not have feed inlet and outlet, into
The setting such as gas outlet, has the space for more putting microwave source, is also beneficial to the processing work of amplification and the scale of microwave power
Skill.
4, the serialization disc rotary kiln gasification process of Multi-stage rotary disk is improved using cheap microwave adaptability catalyst
Pyrolytic gasification efficiency, reduces the generation of the by-products such as tar and semicoke, the conversion efficiency of carbon significantly improves.Microwave adapts to
Property catalyst use pyrolytic process generate biological Jiaozhuo for microwave absorption carrier, have both microwave weak absorbing and strong catalytic pyrolysis
Metal oxide and hydroxide not only play the catalytic activity of active component as active component, but also avoid active group
Divide constructive variations caused by long-time microwave action to inactivate, extends catalyst service life.
5, the serialization disk rotary rotary kiln pyrolytic gasification technique of Multi-stage rotary disk will be pyrolyzed, gasification and reform etc. reaction process
The spiral storage for carrying out effective integration, improving the efficiency of energy utilization of whole system, reduce the production cost of gasification, while using
The Combination Design of slag ladle, sieve plate and multi-layer settlement room can further decrease the solid particle carrying amount in gas, improve material
Efficiency of carbon con version, be internal carbon cycle technology using providing effective way.
Detailed description of the invention
Fig. 1 material continuous pyrolysis gasification reactor apparatus (by taking two-stage rotating circular disk as an example) structural schematic diagram；
Fig. 2 microwave reaction chamber schematic diagram of internal structure；
The material of Fig. 3 level-one rotating circular disk splices schematic diagram；
Fig. 4 level-one rotating circular disk metal supports general structure schematic diagram；
Fig. 5 level-one rotating circular disk vertical metal support construction schematic diagram；
Fig. 6 level-one rotating circular disk tiling metal support structure schematic diagram；
The material of Fig. 7 second level rotating circular disk splices schematic diagram；
Fig. 8 second level rotating circular disk metal supports general structure schematic diagram；
Fig. 9 second level rotating circular disk vertical metal support construction schematic diagram；
Figure 10 second level rotating circular disk tiling metal support structure schematic diagram.
Wherein, screw-feeder 1, microwave reaction chamber 2, microwave generator 3, level-one rotating circular disk 4, second level rotating circular disk 5,
Hollow rotating shaft 6, level-one promote baffle 7, and second level promotes baffle 8, welding rod 9, metal liner 10, sieve plate 11, expansion chamber 12, gas
Products export 13, slag ladle 14, blender 15, spiral slag-discharging device 16, vapor reuse pipe 17, metal jacket pipe 18, vapor
Stomata 19, ceramic liner 20, flange 21, level-one rotating circular disk material 4a, 4b, 4c, 4d, second level rotating circular disk material 5a, 5b,
5c, 5d, level-one rotating circular disk vertical metal support plate 4a ' and 4a ", 4b ' and 4b ' ', the tiling metal support of level-one rotating circular disk
Plate 4c ' and 4c ' ', 4d ' and 4d ' ', second level rotating circular disk vertical metal support plate 5a ' and 5a ' ', 5b ' and 5b ' ', second level
Rotating circular disk tiling metal profile material 5c ' and 5c ' ', 5d ' and 5d ' ', level-one rotating circular disk metal baffle 4-1a ' and 4-
1a ' ', 4-1b ' and 4-1b ' ', 4-1c ' and 4-1c ' ', 4-1d ' and 4-1d ' ', second level rotating circular disk metal baffle 5-1a ' and 5-
1a ' ', 5-1b ' and 5-1b ' ', 5-1c ' and 5-1c ' ', 5-1d ' and 5-1d ' '.
Specific embodiment
The present invention program is described in detail in explanation and embodiment with reference to the accompanying drawing, but the present invention is not by following implementations
The limitation of example.
Material continuous pyrolysis gasification reactor apparatus as shown in Figure 1, including screw-feeder 1, microwave reaction chamber 2, microwave
Generator 3, level-one rotating circular disk 4, second level rotating circular disk 5, sieve plate 11, expansion chamber 12, slag ladle 14 and spiral slag-discharging device 15.Spiral shell
Precession glassware 1 is located at 2 top of microwave reaction chamber；Microwave generator 3 is set outside microwave reaction chamber 2；It is set inside microwave reaction chamber 2
There are level-one rotating circular disk 4 and second level rotating circular disk 5, two-stage rotating circular disk, which all passes through hollow rotating shaft 6, to be fixed, and wherein second level rotates
Disk 5 is connect by welding rod 9 with hollow rotating shaft 6；Level-one, which is connected with, on 6 top of hollow rotating shaft promotes baffle 7, and hollow rotating
Axis bottom end is connected with vapor reuse pipe 17；5 top of second level rotating circular disk is equipped with metal liner 10, and metal liner 10 is connected with second level
Promote baffle 8；
2 bottom of microwave reaction chamber is annular shape, is made of the sieve plate 11 tilted down, sieve plate 11(annulus annular section) under
Side's connection expansion chamber 12, expansion chamber 12 are arranged gas products and export 13；The non-sieve plate part of 2 bottom of microwave reaction chamber is (circular
Small circular portion) communicated with lower section slag ladle 14, have blender 15 in slag ladle 14, and communicate with spiral slag-discharging device 16.
Microwave reaction chamber 2 as shown in Figure 2 includes upper and lower two parts, and passes through 21 connection and sealing of flange, flange 21
Between level-one rotating circular disk 4 and second level rotating circular disk 5.It is hollow that level-one on flange 21 promotes 7 plate of baffle to pass through
The metal jacket pipe 18 of rotary shaft 6 is fixed, and hollow rotating shaft 6 is set between level-one rotating circular disk 4 and second level rotating circular disk 5
There are several vapor stomatas 18.21 lower end of flange is connected with metal liner 10, and welding second level promotes baffle 8 simultaneously tight on metal liner 10
Second level rotating circular disk 5 is pasted, metal liner 10 is below and ceramic liner 20 is sealed processing.
It is formed as the level-one rotating circular disk 4 of Fig. 3 ~ 6 is spliced by material 4a, 4b, 4c, 4d, and passes through vertical metal plate 4a '
And 4a ", 4b ' and 4b ' ', tiling sheet metal 4c ' and 4c ' ', 4d ' and 4d ' ' are supported and metal baffle 4-1a ' and 4-
1a ' ', 4-1b ' and 4-1b ' ', 4-1c ' and 4-1c ' ', 4-1d ' and 4-1d ' ' are fixed.
It is formed as the second level rotating circular disk 5 of Fig. 7 ~ 10 is spliced by material 5a, 5b, 5c, 5d, and passes through vertical metal plate
5a ' and 5a ' ', 5b ' and 5b ' ', tiling sheet metal 5c ' and 5c ' ', 5d ' and 5d ' ' be supported with metal baffle 5-1a ' and
5-1a ' ', 5-1b ' and 5-1b ' ', 5-1c ' and 5-1c ' ', 5-1d ' and 5-1d ' ' are fixed.
Material continuous pyrolysis gasification installation specific work process of the invention is as follows: material is sent by screw-feeder 1
Microwave reaction chamber 2, and level-one rotating circular disk 4 is fallen under gravity into, when being paved with material substantially on level-one rotating circular disk 4,
Level-one rotating circular disk 4 and second level rotating circular disk 5 are rotated simultaneously, the effect of baffle 7 is promoted by the level-one of level-one rotating circular disk 4
Under, material constantly falls into second level rotating circular disk 5 from level-one rotating circular disk 4, starting when second level rotating circular disk 5 is paved with material substantially
Microwave generator 3 realizes that the temperature of pyrolysis zone and reformer section of gasifying is accurate by continuously adjusting the power of each microwave generator
Control.Material carries out pyrolytic reaction in level-one rotating circular disk 4, and the semicoke of generation promotes baffle 7 to be sent to second level rotational circle by level-one
Disk 5, and gasify under the action of vapor (being passed through from vapor stomata 19) with gas-liquid volatiles, fraction solids (semicoke)
Gasification reaction occurs, cracking reaction, the C in gas occur for part tarxHyAnd CO2Also under the synergy of coke/vapor
Reforming reaction is carried out, solid-liquid content is further decreased, improves efficiency of carbon con version.By gasifying and reforming treated gas from second level
5 intermediate channel of rotating circular disk enters sieve plate 11 and removes the fraction solids particulate matter in portion gas, then in expansion chamber 12
Continue gas solid separation, from 13 release of gas products outlet, obtains the synthesis gas product of high-quality.Remaining coke and ash content are two
Grade promotes and falls into slag ladle 14 from 5 intermediate channel of second level rotating circular disk under the effect of baffle 8, by the drive of blender 15, gradually
It moves down, reaction system is finally removed by spiral slag-discharging device 16.
Effect of the invention is further illustrated below by embodiment, percentage composition therein is mass percentage.
The preparation of catalyst used in embodiment
Using the method for dry ball milling, the biology coke that nickel oxide, potassium hydroxide and pyrolytic process are generated is according to mass ratio
1:1:10 is mixed, and ball milling 2 hours under the conditions of 150 revs/min of revolving speed, is obtained uniform powdered carbon catalyst, be then cold-pressed
Particle into strips, having a size of φ 4mm × 6mm, gained Catalyst Definitions are NiO1.0KOH1.0/C10, wherein NiO content is 8.33%,
KOH content is 8.33%.
Embodiment 1
Biomass material and microwave catalyst NiO1.0KOH1.0/C10According to 15:1 ratio by screw-feeder 1 be sent into it is micro-
Wave reaction chamber 2, and falling under gravity into level-one rotating circular disk 4(circular cone basal diameter is the 3/5 of the intracavitary diameter of microwave reaction,
Element of cone and the angle of horizontal direction are 15 °), when being paved with material substantially on level-one rotating circular disk 4, while rotating level-one rotation
The bottom surface diameter for turning disk 4 and second level rotating circular disk 5(rotary table is the 19/20 of the intracavitary diameter of microwave reaction, the upper bottom surface of rotary table
Diameter is the 1/4 of the intracavitary diameter of microwave reaction, and the bus of rotary table and the angle of horizontal direction are 20 °), pass through level-one rotating circular disk 4
Level-one promote baffle 7 under the action of, material constantly falls into second level rotating circular disk 5 from level-one rotating circular disk 4, to second level rotational circle
Disk 5 starts microwave generator 3 when being paved with material substantially, setting pyrolysis zone and the temperature for reformer section of gasifying are respectively 600 DEG C and 800
DEG C, corresponding microwave power is respectively 6 × 105 W/m3、10×105 W/m3.When microwave microwave reaction chamber 2 to setting temperature after,
Feed rate 10kg/h is adjusted, raw material first handles 10min in pyrolysis zone, and semicoke accounts for 20% in the gas-liquid-solid product of formation, pyrolysis
Volatile matter accounts for 80%, includes about 20% condensable property component in volatiles.The semicoke of generation promotes baffle 7 to be sent to two by level-one
Grade rotating circular disk 5, and gasifies under the action of vapor (being passed through from vapor stomata 19) with volatiles, at the same control into
Saliva vapor flow rate 10m3/ h, the temperature of vapor are 200 DEG C, wherein entering the vapor flow of gasification reforming zone in 5m3/
H, remaining vapor are recycled by vapor reuse pipe 17.Under vapor effect, gas occurs for fraction solids (semicoke)
Change reaction, cracking reaction, the C in gas occur for part tarxHyAnd CO2Also weight is carried out under the synergy of coke/vapor
Whole reaction, pyrolysis devolatilization is divided into 92% in product at this time, wherein condensable property component 0.05%, and semicoke 8%, gasify reforming process
Continue 10min.Through gasification and reform treated gas from 5 intermediate channel of second level rotating circular disk enter sieve plate 11(sieve plate to
Lower tilt angle is 30 °) and the fraction solids particulate matter in portion gas is removed, then continue gas-solid point in expansion chamber 12
From, from gas products outlet 13 release, obtain the synthesis gas product of high-quality, H2/ CO is 1.95, and tar content 0.0018%(is about
18mg/m3), the conversion efficiency of whole process biological carbon reaches 92%.Remaining coke and ash content are made in second level propulsion baffle 8
Slag ladle 14 is fallen into from 5 intermediate channel of second level rotating circular disk under, by the drive of blender 15, is gradually moved down, finally
Reaction system is removed by spiral slag-discharging device 16.
Embodiment 2
Biomass material and microwave catalyst NiO1.0KOH1.0/C10Microwave is sent by screw-feeder 1 according to 2:1 ratio
Reaction chamber 2, and falling under gravity into level-one rotating circular disk 4(circular cone basal diameter is the 1/2 of the intracavitary diameter of microwave reaction, circle
Cone nut line and the angle of horizontal direction are 10 °), when being paved with material substantially on level-one rotating circular disk 4, while rotating level-one rotation
The bottom surface diameter of disk 4 and second level rotating circular disk 5(rotary table be the intracavitary diameter of microwave reaction 9/10, the upper bottom surface of rotary table it is straight
Diameter is the 1/5 of the intracavitary diameter of microwave reaction, and the bus of rotary table and the angle of horizontal direction are 45 °), pass through level-one rotating circular disk 4
Under the action of level-one promotes baffle 7, material constantly falls into second level rotating circular disk 5 from level-one rotating circular disk 4, to second level rotating circular disk
5 start microwave generator 3 when being paved with material substantially, setting pyrolysis zone and the temperature for reformer section of gasifying are respectively 300 DEG C and 600
DEG C, corresponding microwave power is respectively 1 × 105 W/m3、6×105 W/m3.When microwave microwave reaction chamber 2 to setting temperature after,
Feed rate 1kg/h is adjusted, raw material first handles 1min in pyrolysis zone, and semicoke accounts for 10% in the gas-liquid-solid product of formation, and pyrolysis is waved
Hair point accounts for 90%, includes about 10% condensable property component in volatiles.The semicoke of generation promotes baffle 7 to be sent to second level by level-one
Rotating circular disk 5, and gasify under the action of vapor (being passed through from vapor stomata 19) with volatiles, while controlling import
Vapor flow 1m3/ h, the temperature of vapor are 120 DEG C, wherein entering the vapor flow of gasification reforming zone in 0.5m3/ h,
Remaining vapor is recycled by vapor reuse pipe 17.Under vapor effect, fraction solids (semicoke) gasify
Cracking reaction, the C in gas occur for reaction, part tarxHyAnd CO2Also it is reformed under the synergy of coke/vapor
Reaction, pyrolysis devolatilization is divided into 95% in product at this time, wherein condensable property component 0.02%, and semicoke 5%, gasification reforming process are held
Continuous 1min.By gasifying and reforming, treated that gas enters sieve plate 11(sieve plate from 5 intermediate channel of second level rotating circular disk dips down
Rake angle is 60 °) and the fraction solids particulate matter in portion gas is removed, then continue gas solid separation in expansion chamber 12, from
13 release of gas products outlet, obtains the synthesis gas product of high-quality, H2/ CO is 2.2, tar content 0.001%(about 10mg/
m3), the conversion efficiency of whole process biological carbon reaches 98%.Remaining coke and ash content in the case where second level promotes baffle 8 to act on from
5 intermediate channel of second level rotating circular disk falls into slag ladle 14, by the drive of blender 15, gradually moves down, finally by spiral
Slag-discharging device 16 removes reaction system.
Embodiment 3
Biomass material and microwave catalyst NiO1.0KOH1.0/C10According to 20:1 ratio by screw-feeder 1 be sent into it is micro-
Wave reaction chamber 2, and falling under gravity into level-one rotating circular disk 4(circular cone basal diameter is the 4/5 of the intracavitary diameter of microwave reaction,
Element of cone and the angle of horizontal direction are 45 °), when being paved with material substantially on level-one rotating circular disk 4, while rotating level-one rotation
The bottom surface diameter for turning disk 4 and second level rotating circular disk 5(rotary table is the 99/100 of the intracavitary diameter of microwave reaction, the upper bottom surface of rotary table
Diameter be the intracavitary diameter of microwave reaction 1/2, the bus of rotary table and the angle of horizontal direction are 10 °), pass through level-one rotating circular disk
Under the action of 4 level-one promotes baffle 7, material constantly falls into second level rotating circular disk 5 from level-one rotating circular disk 4, rotates to second level
Start microwave generator 3 when disk 5 is paved with material substantially, the temperature of setting pyrolysis zone and reformer section of gasifying be respectively 600 DEG C and
800 DEG C, corresponding microwave power is respectively 6 × 105 W/m3、10×105 W/m3.When microwave microwave reaction chamber 2 to setting temperature
Afterwards, feed rate 10kg/h is adjusted, raw material first handles 10min in pyrolysis zone, and semicoke accounts for 20% in the gas-liquid-solid product of formation,
Volatiles account for 80%, include about 30% condensable property component in volatiles.The semicoke of generation promotes baffle 7 to send by level-one
Gasify under the action of vapor (being passed through from vapor stomata 19) to second level rotating circular disk 5, and with volatiles, same to time control
Import vapor flow 10m processed3/ h, the temperature of vapor are 200 DEG C, wherein the vapor flow for entering gasification reforming zone exists
5m3/ h, remaining vapor are recycled by vapor reuse pipe 17.Under vapor effect, fraction solids (semicoke) hair
Cracking reaction, the C in gas occur for raw gasification reaction, part tarxHyAnd CO2Also under the synergy of coke/vapor into
Row reforming reaction, pyrolysis devolatilization is divided into 90% in product at this time, wherein condensable property component 0.1%, and semicoke 10%, gasification are reformed
Process continues 10min.Enter sieve plate 11(sieve from 5 intermediate channel of second level rotating circular disk by gasifying and reforming treated gas
It is 10 ° that plate, which tilts down angle) and the fraction solids particulate matter in portion gas is removed, then continue gas-solid in expansion chamber 12
Separation obtains the synthesis gas product of high-quality, H from 13 release of gas products outlet2/ CO is 1.5, and tar content 0.002%(is about
20mg/m3), the conversion efficiency of whole process biological carbon reaches 90%.Remaining coke and ash content are made in second level propulsion baffle 8
Slag ladle 14 is fallen into from 5 intermediate channel of second level rotating circular disk under, by the drive of blender 15, is gradually moved down, finally
Reaction system is removed by spiral slag-discharging device 16.
Claims (9)
1. a kind of method of material continuous pyrolysis gasification, it is characterised in that including following content: (1) passing through the raw material of helical feed
Enter microwave-heating gasification system with catalyst, drop down under the effect of gravity the level-one rotating circular disk of microwave reaction chamber and with turn
It is dynamic successively to pass through dry, activation and pyrolysis processing；(2) material after pyrolysis processing is fallen into micro- under the action of level-one promotes baffle
The second level rotating circular disk of wave reaction chamber simultaneously continues to gasify and reform under the action of vapor together with volatiles anti-
It answers；(3) solid product handled through step (2), including catalyst, coke and ash content promote baffle to revolve from second level by second level
The intermediate aperture for turning disk falls into slag ladle below microwave reaction chamber, and reaction system is discharged in the case where stirring mixing worm double action
System, and gaseous product then enters expansion chamber by the annular sieve plate in microwave reaction bottom of chamber portion, obtains gasification product through settlement treatment；Step
Suddenly catalyst described in (1) is made of charcoal class microwave absorption, metal oxide and hydroxide, charcoal class microwave absorption conduct
Carrier, metal oxide and hydroxide are as active component, and wherein metal oxide accounts for the 1% ~ 10% of catalyst quality, hydrogen-oxygen
Compound accounts for the 1% ~ 10% of catalyst quality, and surplus is carrier；Charcoal class microwave absorption includes in active carbon, biology coke or graphite
It is one or more；Metal oxide is the metal oxide with both sexes, including nickel oxide, titanium oxide, zirconium oxide, lanthana,
The combination of one or more of selenium oxide or aluminium oxide；Hydroxide includes potassium hydroxide, sodium hydroxide, lithium hydroxide, hydrogen-oxygen
Change the combination of one or more of calcium or magnesium hydroxide.
2. according to the method for claim 1, it is characterised in that: raw material described in step (1) is biomass, industrial waste
Object, coal or oil shale；Wherein biomass is corn stover, rice husk, straw, wooden unit, leaf or branch, and trade waste is useless
Plastics, waste rubber tire or municipal refuse organic waste are abandoned, coal is lignite, the low rotten cigarette of any low caking index
Coal, mesometamorphism bituminous coal and high deterioration coal.
3. according to the method for claim 2, it is characterised in that: raw material maximum direction size is no more than 50mm.
4. according to the method for claim 1, it is characterised in that: the raw material and catalyst of step (1) pass through screw-feeder
Into microwave reaction chamber and in gravity free-falling to level-one rotating circular disk, 300 ~ 600 DEG C for the treatment of temperature, power density 1
×105~6×105W/m3, 1 ~ 10kg/h of feed rate, the processing time 1 ~ 10 minute.
5. according to the method for claim 1, it is characterised in that: catalyst and raw material feed intake mass ratio as 1:2 ~ 1:20.
6. according to the method for claim 1, it is characterised in that: step (2) it is described gasification and reforming reaction temperature be 600 ~
800 DEG C, the reaction time 1 ~ 10 minute, power density 6 × 105~10×105W/m3, 1 ~ 10m of import vapor flow3/ h, wherein
Into gasification reforming zone vapor flow in 0.5 ~ 5m3/ h, remaining vapor repeat reuse, water by hollow rotating shaft
The temperature of steam is 120 ~ 200 DEG C.
7. according to the method for claim 1, it is characterised in that: sieve plate described in step (3) is convex sieve plate, convex length
1 ~ 10cm, hole diameter of sieve (perforated) plate Φ 1 ~ Φ 5mm, it is 10 ° ~ 60 ° that sieve plate, which tilts down angle,.
8. according to the method for claim 1, it is characterised in that: settlement treatment described in step (3) uses multi-layer settlement room.
9. according to the method for claim 1, it is characterised in that: the gasification product H that step (3) obtains2/ CO 1.5 ~ 2.2 it
Between, 10 ~ 20mg/m of tar content3, the conversion efficiency of whole process biological carbon is 90 ~ 98%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510740287.6A CN106675661B (en) | 2015-11-05 | 2015-11-05 | A kind of method of material continuous pyrolysis gasification |
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| CN201510740287.6A CN106675661B (en) | 2015-11-05 | 2015-11-05 | A kind of method of material continuous pyrolysis gasification |
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