CN109401768A - Implement the system and this method of method of biomass pyrolysis - Google Patents
Implement the system and this method of method of biomass pyrolysis Download PDFInfo
- Publication number
- CN109401768A CN109401768A CN201811303714.4A CN201811303714A CN109401768A CN 109401768 A CN109401768 A CN 109401768A CN 201811303714 A CN201811303714 A CN 201811303714A CN 109401768 A CN109401768 A CN 109401768A
- Authority
- CN
- China
- Prior art keywords
- pyrolysis
- cooling
- gas
- direct
- cooled
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000197 pyrolysis Methods 0.000 title claims abstract description 222
- 238000000034 method Methods 0.000 title claims abstract description 51
- 239000002028 Biomass Substances 0.000 title claims abstract description 36
- 239000007789 gas Substances 0.000 claims abstract description 141
- 238000001816 cooling Methods 0.000 claims abstract description 60
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 48
- 238000009434 installation Methods 0.000 claims abstract description 45
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims description 22
- 239000002826 coolant Substances 0.000 claims description 18
- 230000008676 import Effects 0.000 claims description 17
- 238000005057 refrigeration Methods 0.000 claims description 14
- 239000000110 cooling liquid Substances 0.000 claims description 13
- 238000004227 thermal cracking Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
- 239000003610 charcoal Substances 0.000 claims description 2
- 239000000047 product Substances 0.000 abstract description 14
- 239000002296 pyrolytic carbon Substances 0.000 abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052799 carbon Inorganic materials 0.000 abstract description 8
- 241000772415 Neovison vison Species 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 5
- 239000012535 impurity Substances 0.000 abstract description 4
- 239000011203 carbon fibre reinforced carbon Substances 0.000 abstract description 3
- 239000007795 chemical reaction product Substances 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 57
- 239000000463 material Substances 0.000 description 46
- 238000010438 heat treatment Methods 0.000 description 26
- 230000008569 process Effects 0.000 description 12
- 230000000694 effects Effects 0.000 description 10
- 101100194817 Caenorhabditis elegans rig-6 gene Proteins 0.000 description 8
- 239000000428 dust Substances 0.000 description 7
- 239000002994 raw material Substances 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- 238000005303 weighing Methods 0.000 description 5
- 239000000567 combustion gas Substances 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000010926 purge Methods 0.000 description 3
- 239000012265 solid product Substances 0.000 description 3
- 238000005979 thermal decomposition reaction Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000003763 carbonization Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 239000012263 liquid product Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000004058 oil shale Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 210000000952 spleen Anatomy 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- 239000010920 waste tyre Substances 0.000 description 1
- 208000016261 weight loss Diseases 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/02—Dust removal
- C10K1/024—Dust removal by filtration
Abstract
The invention discloses the systems and this method of implementing method of biomass pyrolysis, and system includes: nitrogen device；Pyrolysis installation, the pyrolysis installation are connected with the nitrogen device；Dust-separating appliance, the dust-separating appliance are connected with the pyrolysis installation；Direct-cooled device, the direct-cooled device are connected with the pyrolysis installation；Between device for cooling, it is described between device for cooling be connected respectively with the direct-cooled device；Filter device, the filter device with it is described between device for cooling be connected；Caisson, the caisson are connected with the filter device.Tar and impurity content in pyrolysis gas are reduced using physics cooling method as a result, deep purifying requirement can be reached and because chemical method brings the high problem of operating cost.Moreover, can obtain light-end products and mink cell focus respectively using classification cooling and purifying system, improve the outer price lattice of oil product.Using classification cooling and purifying system, mitigates the operating load of active carbon and pyrolytic carbon, improve service life.
Description
Technical field
The present invention relates to biomass pyrolytic technical field, more particularly, to a kind of system for implementing method of biomass pyrolysis with
And this method.
Background technique
Biomass and other sticky carbonaceous materials (such as oil field oiliness sludge, mud containing mine dust, industrial sludge, dangerous waste liquid)
Thermochemical study (such as carbonization, pyrolysis, gasification) can produce solid-state, liquid and gaseous products, these products are made on demand to return
Receipts, Yi Liyong, the energy form easily transported and easily stored, can heat supply power generation or the raw material as chemical industry and other industries.According to
The difference of raw material difference and heat treatment purpose, can be used carbonization, gasification, pyrolysis, liquefaction or other relevant thermal chemical reactions
And technique.
It is many to be pyrolyzed the reactor types used, such as moving bed, fixed bed, fluidized bed, ablation bed, shower furnace and rotary kiln
Deng wherein industrial production is based on moving bed, fixed bed, rotary kiln and fluidized bed.Various pyrolysis ways generally have its specific
Purpose, i.e., mainly recycling thermal decomposition product in a certain two kinds of main matters.
In the related technology, low temperature distillation stove has heating, cooling speed fast, simple, convenient feature, and stainless steel is dry
Furnace can heat to 300~800 DEG C by surrounding electrical bar outside gas retort furnace, pyrolysis generates solid in the case where completely cutting off air
Body product and gas mixture, whole process time-consuming 30~120 minutes.Solid product remains in gas retort, fuel-air mixture
It is brought out, after cold and direct-cooled, obtains pyrolysis oil and fixed gas.But there are following technical problems for such mode: the work
Skill can not carry out deep purifying to pyrolysis gas, and the impure height of flue gas after causing pyrolysis gas to burn need to be purified further, cause to transport
Row increased costs, and pyrolysis gas is difficult to meet internal combustion engine to GAS QUALITY requirement after amplification, and entirely seals using mechanical
Sealing, poor sealing effect, there are security risks.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, one object of the present invention
It is to propose that a kind of system for implementing method of biomass pyrolysis, the system can effectively purify pyrolysis gas, pyrolysis gas can be improved
Quality.
The present invention further proposes a kind of method of biomass pyrolysis.
The system according to the present invention for implementing method of biomass pyrolysis, comprising: nitrogen device；Pyrolysis installation, the pyrolysis
Device is connected with the nitrogen device；Dust-separating appliance, the dust-separating appliance are connected with the pyrolysis installation；Direct-cooled dress
It sets, the direct-cooled device is connected with the pyrolysis installation；Between device for cooling, it is described between device for cooling respectively with the direct-cooled device phase
Even；Filter device, the filter device with it is described between device for cooling be connected；Caisson, the caisson and the filtering fill
It sets connected.
The system according to the present invention for implementing method of biomass pyrolysis as a result, reduces pyrolysis gas using physics cooling method
Middle tar and impurity content can reach deep purifying requirement and because chemical method brings the high problem of operating cost.And
And using classification cooling and purifying system, light-end products and mink cell focus can be obtained respectively, improve the outer price lattice of oil product.Using point
Grade cooling and purifying system, mitigates the operating load of active carbon and pyrolytic carbon, improves service life.
In some examples of the invention, device for cooling is also connected with the pyrolysis installation between described.
In some examples of the invention, the direct-cooled device is multiple, and multiple direct-cooled devices are sequentially connected.
In some examples of the invention, the system also includes heat-exchanger rig and refrigeration machine, the heat-exchanger rigs, institute
State refrigeration machine, the direct-cooled device and it is described between be connected with coolant line between device for cooling.
In some examples of the invention, the direct-cooled device has pyrolysis oil and gas import and cooling liquid inlet, the heat
Solution oil and gas import is located at the bottom of the pyrolysis installation, and the cooling liquid inlet is located at the top of the pyrolysis installation.
In some examples of the invention, the filter device includes cold-trap and filter, and the cold-trap is connected to described
Between between device for cooling and the filter.
In some examples of the invention, the cold-trap is multiple and be sequentially connected, and the filter is multiple and sequentially
It is connected.
In some examples of the invention, the system also includes mass flowmenter, the mass flowmenter is arranged in institute
It states between filter and the caisson.
Method of biomass pyrolysis according to the present invention the described method comprises the following steps using the system: S1, general
Biomass is sent into pyrolysis installation, and pyrolysis installation is pyrolyzed after carrying out hermetic seal, obtains pyrolysis oil gas and pyrolytic carbon；S2, general
Pyrolysis oil gas be sent into after dust-separating appliance the direct-cooled device and it is described between cooled down in device for cooling, obtain pyrolysis oil
And pyrolysis gas；S3, it will be filtered in pyrolysis gas feeding filter device；S4, filtered pyrolysis gas is stored in caisson
In.
In some examples of the invention, in the step S1, pyrolysis includes: drying stage, inside pyrolysis installation
Temperature is increased to the first predetermined temperature, and keeps the temperature for the first predetermined time；Pyrolysis phase, pyrolysis installation internal temperature is pre- from first
Determine temperature and be increased to the second predetermined temperature, and kept the temperature for the second predetermined time；The thermal cracking stage, by pyrolysis installation internal temperature from
Two predetermined temperatures are increased to third predetermined temperature, and keep the temperature the third predetermined time.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the process flow chart of method of biomass pyrolysis according to an embodiment of the present invention；
Fig. 2 is the step schematic diagram of method of biomass pyrolysis according to an embodiment of the present invention；
Fig. 3 is the schematic diagram of the system according to an embodiment of the present invention for implementing method of biomass pyrolysis.
Appended drawing reference:
System 100；
Nitrogen device 1；Pyrolysis installation 2；Dust-separating appliance 3；Direct-cooled device 4；Between device for cooling 5；Heat-exchanger rig 6；Refrigeration
Machine 7；Cold-trap 8；Filter 9；Mass flowmenter 10；Vacuum pump 11；Caisson 12；Pump 13.
Specific embodiment
Method of biomass pyrolysis according to an embodiment of the present invention is described below with reference to Fig. 1 and Fig. 2.
As shown in Figure 1, method of biomass pyrolysis according to an embodiment of the present invention may comprise steps of: S1, will be biological
Matter is sent into pyrolysis installation 2, and pyrolysis installation 2 is pyrolyzed after carrying out hydraulic seal, obtains pyrolysis oil gas and pyrolytic carbon.The pyrolysis
Device 2, without strict requirements, can meet processing raw material of different shapes to raw material.Pyrolysis installation 2 includes material frame, for difference
Raw material selects different material frames.According to the characteristic of material, when for handling partial size >=1mm bulk goods, material frame selects different holes
The netted material frame of diameter；When for when handling powder, material frame to select non-porous material frame.Therefore, which can meet various discarded
Object includes the processing of biomass, medical sludge, chemical engineering sludge, pharmaceutical factory's waste, paper mill waste, waste printed circuit board,
The resource utilizations such as satiable waste tire, waste plastics, biomass, coal, oil shale utilize.
Pyrolysis installation 2 may include: pyrolysis oven, and pyrolysis oven includes top cover and furnace body, and liquid is used between top cover and furnace body
Sealing, for example, liquid seal trough has can be set in furnace body, the lower end of top cover is protruded into liquid seal trough to carry out hydraulic seal.Hydraulic seal
The sealing effect of pyrolysis installation 2 can be improved, it is easy to operate, once and 2 outlet overpressure of pyrolysis installation, can also let out in time
Pressure, securely and reliably.
After the material got ready is packed into material frame, it is put into pyrolysis oven, shuts fire door and connect nitrogen connecting tube and pyrolysis gas
Outlet connecting pipe is passed through a certain amount of nitrogen to burner hearth, nitrogen is by nitrogen device 1 when ensuring entire oil-gas pipeline valve opening
There is provided, will replace 2-3 times inside whole system 100, exclusion inner air, shut vent valve, it is ensured that whole system 100 it is airtight
Property is good.Wherein, nitrogen device 1 can be nitrogen cylinder.
Pyrolysis installation further include: electronic weighing instrument, electronic weighing instrument can be electronic measuring scale.By electronic measuring scale
It is connect with material material frame connecting rod, temperature program is set in remote computer controling system 100, usually entire heating is divided into three
Stage, three phases are respectively drying stage, pyrolysis phase and thermal cracking stage, and drying stage is by 2 inside temperature of pyrolysis installation
Degree is increased to the first predetermined temperature, and keeps the temperature for the first predetermined time, and pyrolysis phase is that 2 internal temperature of pyrolysis installation is pre- from first
Determine temperature and be increased to the second predetermined temperature, and kept the temperature for the second predetermined time, the thermal cracking stage be by 2 internal temperature of pyrolysis installation from
Second predetermined temperature is increased to third predetermined temperature, and keeps the temperature the third predetermined time.
Specifically, the first stage is drying process, and fire box temperature is increased to keep the temperature 5-100min, preferably 15- after 300 DEG C
45min, heating rate are controlled in 5-50 DEG C/min, preferably 15-30min；Second stage is pyrolysis phase, by fire box temperature from
300 DEG C be increased to 500 DEG C after keep the temperature 5-100min, preferably 20-60min, heating rate is controlled in 5-50 DEG C/min, preferably 15-
30min；Phase III is the thermal cracking stage, fire box temperature is increased to after 1000 DEG C to keep the temperature 5-100min from 500 DEG C, preferably
10-30min, heating rate are controlled in 15-30 DEG C/min, preferably 15-25min.Furnace outage time mainly passes through object after pyrolysis
Material quality changes situation to judge.Judgment basis controls burner hearth by the situation of change of electronic measuring scale data in pyrolytic process
End, judgment basis be lasting 30 minutes electronic measuring scales show data difference 0.5% within, show pyrolysis complete,
Heating device is automatically turned off.
Pyrolysis installation 2 includes pyrolysis oven and heater, heater, and heat is added by radiation in the circumferential burner hearth of pyrolysis oven four
Heat, material first heats up on the outside of material frame, and the material after heating inwardly constantly conducts heat, and accelerates temperature of charge in furnace and increases.For particle
Material holds material using with netted material frame, and enhanced rad heat transfer effect improves material heating rate.With continuous heating, object
Material constantly heating is introduced into rear end by the dry water vapour generated, and then organic light component starts to volatilize, and is followed by recombination distribution
Raw cracking.In whole process, because the constituent content of each temperature section is different, the time to react, there is also differents, directly
Performance be that the solid material weight that electronic measuring scale is shown constantly is being reduced, while showing that weight changes in remotely controlling computer
Change varies with temperature curve.High-temperature-resistant thermal-insulation material is used on the outside of burner hearth surrounding heating tube, can individually be disassembled and installed, thus
Single or more heating tube is installed and changed, service life is increased.
Heating tube heating under the action of, raw material is gradually heated by the sonochemical activity in confined space, 200-1000 DEG C at a temperature of,
15-240 minutes, generate gaseous product, product liquid and solid product.In entire pyrolytic process, furnace pressure control ±
Between 2kPa.Generated gaseous material is quickly drawn burner hearth via oil gas vent.Above-mentioned oil gas vent quantity is 1-6,
It is respectively arranged in furnace roof and furnace bottom.
S2, pyrolysis oil pneumatic transmission is entered in cooling device to cool down, obtains pyrolysis oil and pyrolysis gas.It should be noted that
Due to containing dust in pyrolysis oil gas, pyrolysis oil gas can first pass through dust-separating appliance 3 before entering cooling device, ash
Dust separating device 3 can remove dust, and specifically, dust-separating appliance 3 can be cyclone separator.
Material adds thermogenetic gaseous product under the action of vacuum pump 11, via pyrolysis oven furnace roof or furnace bottom (according to original
The oil gas vent of material technique specific requirement selection furnace roof or furnace bottom) route leads to cyclone separator and is dusted, and it will
The a small amount of dust removing taken out of in gas is fallen, and is respectively fed in direct-cooled device 4 and device for cooling 5.Wherein, direct-cooled device 4 can be with
For direct-cooled tower, device for cooling 5 can be indirect cool tower.That is, pyrolysis oil gas vent can be divided into two-way, all the way with direct-cooled device
4 pyrolysis oil and gas import is connected, and another way is connected with the pyrolysis oil and gas import of indirect cool tower.
It is, of course, also possible to which direct-cooled device 4 pyrolysis oil pneumatic transmission after cooling is entered in a device for cooling 5.In this way, by repeatedly cold
But it filters, will effectively can be pyrolyzed oil gas cooling down, pyrolysis oil can be isolated.Wherein, multiple direct-cooled devices 4 are selected,
In this way after multistage cooling, pyrolysis gas can be entered back into a device for cooling 5, and the temperature of such pyrolysis gas is lower, oil-containing
Rate is relatively low.
Direct-cooled device 4 is connected with heat-exchanger rig 6, and refrigeration machine 7 can provide coolant liquid for direct-cooled device 4 and heat-exchanger rig 6.
As shown in figure 3, to ensure the cooling recycling of most of mink cell focus carrying out heat exchange cooling to direct-cooled tower cooler liquid using refrigeration machine 7,
The temperature of coolant liquid maintains 80 DEG C hereinafter, it is preferred that 10-50 DEG C always, controls pyrolysis gas series connection by control valve and passes through two
Direct-cooled tower, or individually pass through each direct-cooled tower.Entered in indirect cool tower by the pyrolysis gas after direct-cooled tower cooler, with coolant liquid into
Row indirect heat exchange, the cooling liquid inlet temperature in heat-exchanger rig 6 are controlled at 20 DEG C hereinafter, preferably 5-15 DEG C, pyrolysis gas out between it is cold
Tower temperature degree can be controlled in 65 DEG C hereinafter, it is preferred that 30-45 DEG C, can meet the cooling of most of light oil.
S3, it will be filtered in pyrolysis gas feeding filter device.Wherein, will pass through by the cooling pyrolysis gas of cold-trap 8
Filter 9.In view of the residence time is limited in indirect cool tower for pyrolysis gas, partial thermal decomposition gas even if reach dew point hereinafter, be difficult to
It cools down, enter together with pyrolysis gas further cooling in cold-trap 8 and condenses in indirect cool tower.Two of them cold-trap 8 both can be with
Being used in series in parallel can also be used alone, and can be adjusted according to the tolerance of pyrolysis gas and temperature.When pyrolysis gas gas velocity is fast, temperature
It is high, it is difficult to when cooling, cooling effect can be accelerated by adjusting 7 valve of refrigeration machine and circulation fluid temperature.Using this cooler, both
Cold cooling effect between can achieve direct-cooled effect and can achieve again, and will not influence the quality of oil, while Quick-detachable cleaning.
Connection relationship between coolant liquid, heat-exchanger rig 6, pump 13 and refrigeration machine 7: coolant liquid and pyrolysis gas are in direct-cooled tower
It after heat exchange, is cooled down into heat-exchanger rig 6 by cold medium, cold medium derives from refrigeration machine 7, and the temperature of coolant liquid maintains always
80 DEG C hereinafter, it is preferred that 10-50 DEG C.The source of indirect cool tower coolant liquid is the cold medium of refrigeration machine 7.
S4, filtered pyrolysis gas is stored in caisson 12.After direct-cooled tower, indirect cool tower and cold-trap 8 are cooling
Pyrolysis gas in 98% pyrolysis oil be condensed, but because the residence time is shorter in entire cold-trap 8 for pyrolysis gas, there are also 1-1.8%
Pyrolysis oil enter in back segment filter 9 with pyrolysis gas.Pyrolysis gas is passed through from the bottom of filter 9, is distributed by gas
Pyrolysis gas is evenly distributed on 9 bottom of filter by device, can take off the tiny oil droplets in pyrolysis gas when pyrolysis gas first passes through pyrolytic carbon
Attached to get off, after pyrolysis gas enters active carbon layer, foreign gas and micro tar in pyrolysis gas are further desorbed.Pass through
Tar content after filter 9 in pyrolysis gas is down to 50mg/Nm3, the tar content of most of material pyrolysis gas can be down to 20mg/
Nm3Within, it can be used as the use of gas burning system 100 that the energy meets most of high standards, reach long-term oepration at full load, such as combustion gas
Turbine, heat accumulation type radiant tube etc..
It is brought out under the action of vacuum pump 11 by the pyrolysis gas after secondary filter 9, first passes through mass flowmenter 10
Combustion gas is measured, finally obtained fixed gas, which is sent into caisson 12 to be stored or be sent into burner, to be fired
It burns.It is provided with airbag collector, between mass flowmenter 10 and vacuum pump 11 to collect a small amount of gaseous mixture for detecting gas
Body ingredient.Caisson 12 is gas tank or gas holder.
Method of biomass pyrolysis according to an embodiment of the present invention as a result, is reduced burnt in pyrolysis gas using physics cooling method
Oil and impurity content, can reach deep purifying requirement and because chemical method brings the high problem of operating cost.Moreover,
Pyrolysis installation 2 uses hydraulic seal, and one side sealing effect is good, more swift and convenient to operate than mechanical seal, once on the other hand furnace
There is overpressure in thorax, also can timely pressure release, securely and reliably.
As shown in figure 3, the system 100 according to an embodiment of the present invention for implementing method of biomass pyrolysis, comprising: nitrogen device
1, pyrolysis installation 2, direct-cooled device 4, device for cooling 5, filter device and caisson 12.
Pyrolysis installation 2 is connected with nitrogen device 1, nitrogen device 1 be nitrogen cylinder, pyrolysis installation 2 include pyrolysis oven, material frame,
Computer controlling terminal, pyrolysis oven are equipped with nitrogen inlet, material inlet, pyrolysis oil gas vent, pyrolytic carbon outlet, and the material frame is set
In the center of pyrolysis oven, material frame can be cylinder, be connect by connecting rod with top electronic weighing instrument, electronic weighing instrument
It is connected with remote computer.Wherein, electronic weighing instrument is electronic measuring scale.
Nitrogen inlet setting is being pyrolyzed furnace bottom and nitrogen cylinder outlet connection, is used for before pyrolysis starts and after pyrolysis
Burner hearth is passed through nitrogen, replaces to oven cavity atmosphere, and purging maintains 3-15min every time, and nitrogen flow rate is controlled in 5-60L/
Min, nitrogen single purging amount is controlled at 3-20 times of furnace volume, therefore total purging can be controlled according to the volume of burner hearth
Time.
System 100 further includes dust-separating appliance 3, and dust-separating appliance 3 can be cyclone separator, cyclone separator packet
Pyrolysis oil and gas import, pyrolysis oil gas vent are included, pyrolysis oil and gas import is connected with the pyrolysis oil gas vent of pyrolysis oven, meets pyrolysis oil
Gas product dust removal requirement.In order to meet electronic measuring scale record data be material frame and material data, the connecting tube of material frame with
Pyrolysis oven top cover uses water seal or other liquid seal devices, and entire pyrolytic process furnace pressure control is in ± 2kpa, therefore fluid-tight
Groove height is controlled in 25cm or more.
As material thermal cracking carries out in pyrolytic process, the weight of material is constantly being reduced, the metering of electronic measuring scale
Data constantly change therewith, and electronic measuring scale can show in a computer quality of material with heat by connecting with remote computer
Solve the change curve of time.The end for controlling burner hearth in pyrolytic process by the situation of change of electronic measuring scale data, sentences
Disconnected foundation is that lasting 30 minutes electronic measuring scales are shown within data difference 0.5%, shows that pyrolysis is completed, heating device closes automatically
Stop.Wherein, using electronical record scale and remote computer based system, the weight-loss curve of material pyrolytic process is directly acquired, is
Engineer application provides data supporting.
Pyrolysis furnace outer wall surrounding is provided with the heating device being evenly arranged, when being designed as small-sized pyrolysis oven single treatment ability
Electrically heated rod can be used within 50kg to be heated, heat accumulation type radiant tube may be selected when single treatment ability is in 50kg or more
Heating device is heated.Heating tube is located at the outgoing surrounding of entire burner hearth and is evenly arranged, and radiant tube highest design temperature selects 1200
℃.According further to the difference of pyrolysis material, fuse salt also can be selected as heating source heated material.According to the characteristic of material, when
For handling partial size >=1mm bulk goods, material frame selects the netted material frame of different pore size；When for when handling powder, material frame to be selected
With non-porous material frame.Moreover, pyrolysis oven uses hydraulic seal, one side sealing effect is good, more swift and convenient to operate than mechanical seal, separately
Once on the one hand burner hearth there is overpressure, also can timely pressure release, securely and reliably.
Direct-cooled device 4 is connected by cyclone separator with pyrolysis installation 2, and the direct-cooled device 4 of device for cooling 5 is connected, in addition,
Device for cooling 5 can also be connected with pyrolysis installation 2.Wherein, the pyrolysis oil gas vent of cyclone separator can be divided into two-way, all the way and directly
The pyrolysis oil and gas import of device for cooling 4 is connected, and another way is connected with the pyrolysis oil and gas import of device for cooling 5.Direct-cooled device 4 is direct-cooled
Tower, direct-cooled tower include cooling liquid inlet, pyrolysis oil and gas import, pyrolysis gas outlet, cooling liquid outlet, and cooling liquid inlet is located at direct-cooled
Top of tower, pyrolysis oil and gas import are located at direct-cooled tower bottom, and cooling liquid inlet is connected with pump 13, cooling liquid outlet and heat-exchanger rig 6
It is connected.
Direct-cooled device 4 be it is multiple, multiple direct-cooled devices 4 are sequentially connected.As shown in figure 3, direct-cooled tower can be two, each tower
It can be used alone or be used in series.Pyrolysis gas can be by multistage cooling, so as to preferably separation pyrolyzing oil in this way.
Between device for cooling 5 be indirect cool tower, indirect cool tower unit cooling liquid inlet, pyrolysis oil and gas import, pyrolysis gas outlet, pyrolysis oil
Outlet, indirect cool tower are two, and each tower can be used alone or be used in series, and be pyrolyzed the pyrolysis oil gas vent of oil and gas import and direct-cooled tower
It is connected, cooling liquid inlet is connected with the cooling liquid outlet of refrigeration machine 7, and indirect cool tower can be arranged with single-stage or series multistage setting.Into
One step, indirect cool tower can be coil exchanger, plate heat exchanger.
As shown in figure 3, filter device is connected with device for cooling 5, filter device may include cold-trap 8 and filter 9, cold-trap
8 are connected between a device for cooling 5 and filter 9, and cold-trap 8 includes pyrolysis gas import, cold liquid inlet, pyrolysis gas outlet.
Cold-trap 8 be it is multiple, and multiple cold-traps 8 are sequentially connected, filter 9 be it is multiple, multiple filters 9 are sequentially connected.
Cold-trap 8 may be configured as single-stage or series multistage, and the pyrolysis gas import of cold-trap 8 is connected with the pyrolysis oil gas vent of indirect cool tower, cold liquid
Import is connected with the cooling liquid outlet of refrigeration machine 7.Filter 9 is connected between cold-trap 8 and caisson 12, and filter 9 can also
Think two, two filters 9 can be single-stage or series multistage.
Coolant line is in series between heat-exchanger rig 6, refrigeration machine 7, direct-cooled device 4 and device for cooling 5.It is sent by indirect cool tower
Carry out pyrolysis gas of the temperature lower than 65 DEG C to be sent into two cold-traps 8, pyrolysis is made leave with rage in pipe, and coolant liquid is walked in shell, by pyrolysis gas temperature
It is down within 20 DEG C.98% pyrolysis oil is condensed in pyrolysis gas at this time, but because pyrolysis gas in entire cold-trap 8 residence time compared with
Short, there are also the light oils of 1-1.8% to enter in back segment filter 9 with pyrolysis gas.Partial size is respectively charged into two filters 9
For the active carbon of 3-8mm and the pyrolytic carbon of 1-5mm, pyrolytic carbon is mounted in the bottom and top of filter 9, and active carbon is mounted in centre,
The amount of fill of active carbon is 1.5-3 times of pyrolytic carbon amount of fill.Pyrolysis gas is passed through from the bottom of filter 9, is distributed by gas
Pyrolysis gas is evenly distributed on 9 bottom of filter by device, and pyrolysis gas first passes through pyrolytic carbon and the tiny oil droplets in pyrolysis gas can be desorbed
Get off, after pyrolysis gas enters active carbon layer, foreign gas and micro tar in pyrolysis gas are further desorbed.Passed through
Tar content after filter 9 in pyrolysis gas is down to 50mg/Nm3Within, the tar content of most of material pyrolysis gas can be down to
20mg/Nm3Within, it can be used as the use of gas burning system 100 that the energy meets most of high standards, reach long-term oepration at full load,
Such as gas turbine, heat accumulation type radiant tube.
Gas metering and storage include mass flowmenter 10, vacuum pump 11 and caisson 12.Pass through purified combustion gas
It is drawn under the action of vacuum pump 11 from filter 9, first passes through mass flowmenter 10 and combustion gas is measured, finally obtained combustion
Pneumatic transmission enters to be stored in caisson 12.
The system 100 according to an embodiment of the present invention for implementing method of biomass pyrolysis as a result, is subtracted using physics cooling method
Tar and impurity content in few pyrolysis gas, can reach deep purifying requirement and because chemical method brings operating cost pole
High problem.Moreover, can obtain light-end products and mink cell focus respectively using classification cooling and purifying system 100, improve the outer of oil product and sell
Price.Using classification cooling and purifying system 100, mitigates the operating load of active carbon and pyrolytic carbon, improve service life.
Specific embodiment is given below.
The biomass of 0.5~1mm of granularity (Biomass aiialysis data are shown in Table 1).After the material got ready is packed into material frame, single
Charge weight is that 10kg is put into pyrolysis oven, shuts fire door and connects nitrogen connecting tube and pyrolysis gas outlet connecting tube, checks burner hearth
After air-tightness is without exception, temperature program is set in remote computer controling system 100, usually entire heating is set as three phases,
First stage: fire box temperature being increased to keep the temperature 30min after 300 DEG C, and heating rate is controlled in 15 DEG C/min；Second stage: will
Fire box temperature is increased to keep the temperature 50min after 500 DEG C from 300 DEG C, and heating rate is controlled in 30 DEG C/min；Phase III: by burner hearth
Temperature is increased to keep the temperature 30min after 850 DEG C from 500 DEG C, and heating rate is controlled in 15 DEG C/min.Under the action of heating tube heating,
Raw material is gradually heated by the sonochemical activity in confined space, generates gaseous product, product liquid and solid product.In entire pyrolytic process, furnace
Gun pressure power controls between ± 500Pa.Generated gaseous material is quickly drawn burner hearth via top oil gas vent.Pyrolysis produces
The raw heat of mixing is vented one's spleen into separating in cyclone separator, is removed the pyrolysis gas in gas after dust and is entered the direct-cooled tower of two-stage series connection
It is further cooling, oil gas is pyrolyzed after the direct-cooled tower spraying cooling of level-one, as coolant liquid enters after part mink cell focus is cooled
Recycle in flow container, not cooled oil gas is led shower pipe by direct-cooled top of tower gas and is sent into the direct-cooled tower of second level, be pyrolyzed oil gas and
Coolant liquid inversely further contacts, and enters in circulation flow container together after most of mink cell focus is cooled with coolant liquid, into level-one
It is 560 DEG C when the oil gas temperature highest of direct-cooled tower, leaves that the direct-cooled tower pyrolysis gas temperature of second level is minimum to be down to 70 DEG C.It is followed by vacuum
The water at low temperature or liquefied ammonia and recycle the liquid progress indirect heat exchange in flow container that ring coolant pump 13 generates, in control loop flow container
Fluid temperature is no more than 65 DEG C.Entered in coil heat exchanger by the condensed pyrolysis gas of direct-cooled tower, is exchanged heat by secondary coil
Pyrolysis gas temperature can be further reduced to 50 DEG C hereinafter, part of light oil is able to condense and recycle by device heat exchange, and another
Portion's light oil enters back segment with pyrolysis gas together.The refrigerating fluid to exchange heat needed for coil heat exchanger derives from vacuum cycle coolant pump
13.It sends pyrolysis gas of the temperature lower than 50 DEG C by coil heat exchanger to be sent into two-stage cold-trap 8, pyrolysis is made leave with rage in pipe, and refrigerating fluid is walked
In shell, pyrolysis gas temperature is down within 20 DEG C.The refrigerating fluid to exchange heat needed for cold-trap 8 derives from vacuum cycle coolant pump 13.
Entered in back segment secondary filter 9 by the pyrolysis gas after cooling of cold-trap 8, pyrolysis gas is passed through from the bottom of filter 9, passes through gas
Pyrolysis gas is evenly distributed on 9 bottom of filter by body distributor, and the low dew point tar and foreign gas in pyrolysis gas are further
Removing.It is brought out under the action of vacuum pump 11 by the pyrolysis gas after secondary filter 9, first passes through 10 pairs of mass flowmenter combustions
Gas is measured, and finally obtained fixed gas, which is sent into gas tank to be stored or be sent into burner, to burn.By to charcoal
The tar content in pyrolysis fixed gas after absorption is detected, and the value of repeated detection is controlled in 1-9mg/Nm3Between.
Process of the present invention can be operated stably for a long period of time, the yield of acquired more stable thermal decomposition product and main
Property is shown in Table 1.
1 biomass material of table analyzes result
Process of the present invention can be operated stably for a long period of time, and equipment failure rate is extremely low.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are included at least one embodiment or example of the invention.In the present specification, to above-mentioned term
Schematic representation may not refer to the same embodiment or example.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (10)
1. a kind of system for implementing method of biomass pyrolysis characterized by comprising
Nitrogen device；
Pyrolysis installation, the pyrolysis installation are connected with the nitrogen device；
Dust-separating appliance, the dust-separating appliance are connected with the pyrolysis installation；
Direct-cooled device, the direct-cooled device are connected with the pyrolysis installation；
Between device for cooling, it is described between device for cooling be connected respectively with the direct-cooled device；
Filter device, the filter device with it is described between device for cooling be connected；
Caisson, the caisson are connected with the filter device.
2. it is according to claim 1 implement method of biomass pyrolysis system, which is characterized in that between described device for cooling also with
The pyrolysis installation is connected.
3. the system according to claim 1 for implementing method of biomass pyrolysis, which is characterized in that the direct-cooled device is more
A, multiple direct-cooled devices are sequentially connected.
4. the system according to claim 1 for implementing method of biomass pyrolysis, which is characterized in that further include: heat-exchanger rig
And refrigeration machine, the heat-exchanger rig, the refrigeration machine, the direct-cooled device and it is described between be connected with coolant pipe between device for cooling
Road.
5. the system according to claim 1 for implementing method of biomass pyrolysis, which is characterized in that the direct-cooled device has
Be pyrolyzed oil and gas import and cooling liquid inlet, the pyrolysis oil and gas import is located at the bottom of the pyrolysis installation, the coolant liquid into
Mouth is located at the top of the pyrolysis installation.
6. the system according to claim 1 for implementing method of biomass pyrolysis, which is characterized in that the filter device includes
Cold-trap and filter, the cold-trap be connected to it is described between device for cooling and the filter.
7. it is according to claim 6 implement method of biomass pyrolysis system, which is characterized in that the cold-trap be it is multiple and
It is sequentially connected, the filter is multiple and is sequentially connected.
8. the system according to claim 6 for implementing method of biomass pyrolysis, which is characterized in that further include: mass flow
Meter, the mass flowmenter are arranged between the filter and the caisson.
9. a kind of method of biomass pyrolysis, which is characterized in that use system of any of claims 1-8, the side
Method the following steps are included:
S1, biomass is sent into pyrolysis installation, pyrolysis installation is pyrolyzed after carrying out hermetic seal, obtains pyrolysis oil gas and pyrolysis
Charcoal；
S2, will pyrolysis oil gas be sent into after dust-separating appliance the direct-cooled device and it is described between cool down in device for cooling,
Obtain pyrolysis oil and pyrolysis gas；
S3, it will be filtered in pyrolysis gas feeding filter device；
S4, filtered pyrolysis gas is stored in caisson.
10. method of biomass pyrolysis according to claim 9, which is characterized in that in the step S1,
Pyrolysis includes: drying stage, and pyrolysis installation internal temperature is increased to the first predetermined temperature, and keeps the temperature the first pre- timing
Between；
Pyrolysis installation internal temperature is increased to the second predetermined temperature from the first predetermined temperature by pyrolysis phase, and it is pre- to keep the temperature second
It fixes time；
Pyrolysis installation internal temperature is increased to third predetermined temperature from the second predetermined temperature, and keeps the temperature third by the thermal cracking stage
Predetermined time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811303714.4A CN109401768A (en) | 2018-11-02 | 2018-11-02 | Implement the system and this method of method of biomass pyrolysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811303714.4A CN109401768A (en) | 2018-11-02 | 2018-11-02 | Implement the system and this method of method of biomass pyrolysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109401768A true CN109401768A (en) | 2019-03-01 |
Family
ID=65471457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811303714.4A Pending CN109401768A (en) | 2018-11-02 | 2018-11-02 | Implement the system and this method of method of biomass pyrolysis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109401768A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110452729A (en) * | 2019-08-05 | 2019-11-15 | 浙江骐骥环境科技有限公司 | A kind of oil recovery system of RDF pyrolysis gas |
| CN110451753A (en) * | 2019-07-30 | 2019-11-15 | 中国科学院过程工程研究所 | A kind of processing method of danger solid waste greasy filth |
| CN111647418A (en) * | 2020-06-28 | 2020-09-11 | 四川炭源秸能农业科技发展有限公司 | Method for processing and recycling crop remains |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101608125A (en) * | 2009-07-09 | 2009-12-23 | 神华集团有限责任公司 | A kind of method for upgrading coal pyrolysis |
| CN203916370U (en) * | 2014-06-16 | 2014-11-05 | 国家电网公司 | A kind of air cleaning filter |
| CN105176563A (en) * | 2015-09-25 | 2015-12-23 | 北京神雾环境能源科技集团股份有限公司 | Rapid biomass pyrogenation system and method |
| CN215049912U (en) * | 2018-11-02 | 2021-12-07 | 湖北亚首生物质新能源科技有限公司 | System for implementing biomass pyrolysis process |
-
2018
- 2018-11-02 CN CN201811303714.4A patent/CN109401768A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101608125A (en) * | 2009-07-09 | 2009-12-23 | 神华集团有限责任公司 | A kind of method for upgrading coal pyrolysis |
| CN203916370U (en) * | 2014-06-16 | 2014-11-05 | 国家电网公司 | A kind of air cleaning filter |
| CN105176563A (en) * | 2015-09-25 | 2015-12-23 | 北京神雾环境能源科技集团股份有限公司 | Rapid biomass pyrogenation system and method |
| CN215049912U (en) * | 2018-11-02 | 2021-12-07 | 湖北亚首生物质新能源科技有限公司 | System for implementing biomass pyrolysis process |
Non-Patent Citations (1)
| Title |
|---|
| 张建春等编著: "《汉麻综合利用技术》", vol. 1, 30 June 2006, 北京：长城出版社, pages: 485 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110451753A (en) * | 2019-07-30 | 2019-11-15 | 中国科学院过程工程研究所 | A kind of processing method of danger solid waste greasy filth |
| CN110452729A (en) * | 2019-08-05 | 2019-11-15 | 浙江骐骥环境科技有限公司 | A kind of oil recovery system of RDF pyrolysis gas |
| CN111647418A (en) * | 2020-06-28 | 2020-09-11 | 四川炭源秸能农业科技发展有限公司 | Method for processing and recycling crop remains |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5756814B2 (en) | Coal substance decomposition equipment | |
| CN109401768A (en) | Implement the system and this method of method of biomass pyrolysis | |
| CN104073263B (en) | Heat accumulating type rotating bed low-temperature carbonization system and technique | |
| CN105176563A (en) | Rapid biomass pyrogenation system and method | |
| US20110308158A1 (en) | Pyrolysis waste and biomass treatment | |
| CN103031139B (en) | Device and method for preparing bio-oil through rapid biomass pyrolysis | |
| CN102329628A (en) | Large-size low-temperature destructive distillation system for low-order lignite | |
| CN107129124A (en) | The system and method for continuous processing domestic sludge | |
| CN201343520Y (en) | Flash dry distillation technology device of oil shale | |
| CN102816611A (en) | Comprehensive and recycling utilization method of coal pyrolysis gases | |
| CN107903924A (en) | A kind of uplink heat accumulating type fine coal fast pyrogenation reaction system and method | |
| CN202786158U (en) | Comprehensive coal pyrolysis gas recycling device | |
| CN109722263A (en) | Implement the system and this method of organic solid waste method for pyrolysis | |
| CN211005237U (en) | System for implementing organic solid waste pyrolysis method | |
| CN215049912U (en) | System for implementing biomass pyrolysis process | |
| CN219156812U (en) | Granular coal pyrolysis carbonization device | |
| CN207659386U (en) | A kind of uplink heat accumulating type fine coal fast pyrogenation reaction system | |
| CN109504412A (en) | Method of biomass pyrolysis and the system for implementing it | |
| CN106698424A (en) | System and method for rotary pyrolysis treatment of domestic sludge | |
| CN107267176A (en) | A kind of efficient biomass handles tar multi-joint-production pyrolysis oven | |
| CN206278922U (en) | The system that a kind of sludge prepares activated carbon | |
| CN116286058A (en) | Granular coal pyrolysis carbonization device | |
| CN103265961B (en) | Carbon species method for pyrolysis and carbon substance vibration pyrolysis tower | |
| CN104531195A (en) | Externally heated oil shale destructive distillation process | |
| CN205838921U (en) | Fine coal rapid pyrolysis apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |