CN109694072A - A kind of method and device using biomass carbon chemical recycling of carbon dioxide - Google Patents
A kind of method and device using biomass carbon chemical recycling of carbon dioxide Download PDFInfo
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- CN109694072A CN109694072A CN201910080880.0A CN201910080880A CN109694072A CN 109694072 A CN109694072 A CN 109694072A CN 201910080880 A CN201910080880 A CN 201910080880A CN 109694072 A CN109694072 A CN 109694072A
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/40—Carbon monoxide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/62—Carbon oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/81—Solid phase processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
- B01D2257/504—Carbon dioxide
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The present invention provides a kind of method and device using biomass carbon chemical recycling of carbon dioxide, and method includes: to carbonize leaf by microwave heating；Biomass carbon is reacted to 700-1100 DEG C with coal-burning boiler or gas fired-boiler generation carbon dioxide microwave heating and generates carbon monoxide.Device includes biomass microwave retort, biomass carbon feeding device, carbon dioxide microwave reburner, appliance for applying carbon dioxide and carbon monoxide storage tank, the feed opening of carbon dioxide microwave reburner is connect with biomass microwave retort discharge port, air inlet is connect with appliance for applying carbon dioxide, the air inlet of carbon monoxide storage tank is connect with carbon dioxide microwave reburner gas outlet, and gas outlet is connect with the fuel inlet of coal-burning boiler or gas fired-boiler.This method and device can convert the impure CO 2 waste gas of coal heating company, gas heating company, coal-burning power plant's discharge, are rationally worth using Urban fallen leaves, save the energy such as coal, natural gas.
Description
Technical field
The invention belongs to carbon dioxide conversions to utilize technical field, and in particular to a kind of to convert titanium dioxide using biomass carbon
The method and device of carbon.
Background technique
With the development of Chinese national economy and the raising of living standards of the people, thermal power generation and for heat loss the energy not
Disconnected to increase, the amount of carbon dioxide of discharge is more and more, and the emission reduction of carbon dioxide is increasing.China's heat supply at present it is main
Heat source is coal-burning boiler, also there is the modes such as natural gas boiler heat supply, Natural Gas Heat Pump heat supply and electric heat pump heat supply.Carbon dioxide
Maximum discharge amount is coal-burning boiler heat supply, and natural gas boiler heat supply is the 55% of coal-burning boiler heat supply, and electric heat pump heat supply is
The 50% of coal-burning boiler heat supply, Natural Gas Heat Pump heat supply are the 31% of coal-burning boiler.
The utilization of carbon dioxide includes that directly utilization and trans-utilization, carbon dioxide conversion has chemical conversion using technology
Method is electrochemically transformed method, carbon thermal transition method and joint conversion method.Chemical transformation needs temperature, pressure, catalyst and conversion
The regulation of gas, device structure is complicated, high to the purity requirement of CO 2 raw material gas body；Electrochemical conversion method needs to consume a large amount of
Water resource is not suitable for the use of water shortage place, and has potential pollution to environment；Chemical transformation and electrochemical conversion method are unsuitable for
The conversion of the coal heating boiler, gas heating boiler and the carbon dioxide of coal-burning power plant's discharge of complicated component.
Carbon thermalization robin technique is relatively easy, the conversion of the carbon dioxide gas suitable for comparison of ingredients complexity, the height needed
Warm consersion unit is also less complicated, but coal need to be used as gas transforming agent, not only will cause secondary pollution to environment, in city
City also suffers from the limitation using coal.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of method and devices using biomass carbon chemical recycling of carbon dioxide, both
Dust, steam-laden impure CO 2 waste gas can be contained to what coal heating company, gas heating company, coal-burning power plant were discharged
It is converted, going back can be worth containing for reasonable utilization Urban fallen leaves, save the energy such as coal, natural gas.
To solve the above-mentioned problems, the present invention provides a kind of method using biomass carbon chemical recycling of carbon dioxide, comprising:
The first step carbonizes leaf by microwave heating, obtains biomass carbon；
Second step, the carbon dioxide microwave for generating biomass carbon obtained in the first step and coal-burning boiler or gas fired-boiler
Heating, reaction generates carbon monoxide under conditions of temperature is 700-1100 DEG C, reaction pressure is 2-10atm；Wherein, titanium dioxide
The molar ratio of carbon and biomass carbon is 1:(1-1.5).
In technical solution, it is preferred that the carbonization temperature of leaf is 500-700 DEG C in the first step, carbonization time 1-2h.
In technical solution, it is preferred that further include before the first step to leaf carry out micro-wave drying and to drying after
Leaf carry out microwave heating preheating the step of；The temperature of micro-wave drying is 90-110 DEG C, time 1-2h；Microwave heating
The temperature of preheating is 200-400 DEG C, time 1-2h.
In technical solution, it is preferred that it further include before leaf is dried, the leaf being collected into is sieved,
It crushes, briquetting；The size of leaf is 2-5mm after crushing；The size of leaf after briquetting is 10-100mm.
In technical solution, it is preferred that further include the steps that the carbon monoxide that will acquire is collected；The carbon monoxide of collection is used as
The fuel gas of coal-burning boiler or gas fired-boiler.
In technical solution, it is preferred that further include the foreign matter and soil removed after being collected into leaf in leaf.
Another object of the present invention is to provide a kind of device using biomass carbon chemical recycling of carbon dioxide, including biomass microwave
Retort, biomass carbon feeding device, carbon dioxide microwave reburner, appliance for applying carbon dioxide and carbon monoxide storage tank,
The discharge port of biomass microwave retort is connect by biomass carbon feeding device with the feed opening of carbon dioxide microwave reburner,
The gas outlet of appliance for applying carbon dioxide is connect with the air inlet of carbon dioxide microwave reburner, carbon dioxide microwave reburner
Gas outlet is connect with the air inlet of carbon monoxide storage tank, the gas outlet of carbon monoxide storage tank and coal-burning boiler or gas fired-boiler
Fuel inlet connection.
In technical solution, it is preferred that it further include leaf drying oven and leaf preheating furnace, the discharge port of leaf drying oven and tree
The feed inlet of leaf preheating furnace connects, and the discharge port of leaf preheating furnace is connect with the feed opening of biomass microwave retort.
In technical solution, it is preferred that further include biomass pretreatment portion, biomass pretreatment portion includes screening machine, crushes
Machine and compression-molding apparatus, the discharge port of screening machine and the feed inlet of pulverizer connect, the discharge port of pulverizer and compression forming
The feed inlet of device connects, and the discharge port of compression-molding apparatus is connect with the feed inlet of leaf drying oven.
In technical solution, it is preferred that further include ash content collection device, ash content collection device and carbon dioxide microwave reburner
Ash outlet connection.
In technical solution, it is preferred that biomass carbon feeding device includes biomass carbon collecting bin, feeding tube and spiral charging
The entrance of bar, biomass carbon collecting bin is connect with the discharge port of biomass microwave retort, and the outlet of biomass carbon collecting bin is logical
It crosses feeding tube to connect with the feed opening of carbon dioxide microwave reburner, screw feed rod is set in feeding tube.
Compared with the prior art, the present invention has the following beneficial effects: this utilizes the side of biomass carbon chemical recycling of carbon dioxide
Method and device:
1. Urban fallen leaves, which are collected charing, obtains biomass carbon, and using biomass carbon as the gas transforming agent of carbon dioxide
It is reacted with carbon dioxide, can also not only be converted using biomass carbon with wastes such as reasonable utilization Urban fallen leaves
Carbon dioxide reduces the discharge of coal heating boiler, gas heating boiler and coal-burning power plant's carbon dioxide, and being translated into can
The carbon monoxide of recycling；
2. since biomass sulfur-bearing and nitrogen content are low, the discharge amount ratioization of sulfur dioxide, nitrogen oxides and dust after burning
Stone fuel is much smaller, on the one hand the gas transforming agent using biomass carbon as carbon dioxide can save coal resources, another party
Face can also reduce secondary pollution；
3. heating during biomass carbonated process and carbon dioxide conversion and using microwave heating, microwave heating is material
In electromagnetic field by the microwave energy of own absorption be substance thermal energy, belong to volumetric heating, with conventional heating mode phase
Than microwave heating has many advantages, such as instantaneity, globality, selectivity, high efficiency and safety non-pollution.
4. the apparatus structure is simple, easy to operate；
5. the pyrolysis gas that biomass carbonated process generates is utilized as in carbon dioxide microwave reburner raw by the device again
The preheating zone heat supply of substance charcoal can reduce the discharge of polluted gas, energy saving.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the device described in the embodiment of the present invention using biomass carbon chemical recycling of carbon dioxide.
Wherein: 1- biomass microwave retort；2- biomass carbon feeding device；21- biomass carbon collecting bin；22- conveying
Cylinder；23- screw feed rod；3- carbon dioxide microwave reburner；31- biomass carbon preheating zone；32- carbon dioxide conversion area；33-
Combustion chamber；34- heat-transferring jacket；35- microwave generator；4- appliance for applying carbon dioxide；5- carbon monoxide storage tank；6- leaf is dry
Dry furnace；7- pulverizer；8- compression-molding apparatus；9- ash content collection device；10- gas-solid separator；11- tar trap；12- tree
Leaf preheating furnace；13- screening machine；14- coal-burning boiler or gas fired-boiler.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
The method for transformation of carbon dioxide mainly has chemical transformation, electrochemical conversion method and carbon thermal transition method, wherein chemistry
Conversion method needs to regulate and control temperature, pressure, catalyst and reaction gas, and the device is complicated；Electrochemical conversion method needs to consume
Great lot of water resources has certain potential pollution to environment.In addition, the two is higher to the purity requirement of carbon dioxide, it is unsuitable for converting
The carbon dioxide that coal heating boiler, gas heating boiler and the coal-burning power plant of complicated component are discharged.Carbothermy technique and used
Equipment it is relatively easy, and be suitable for converting the more complex carbon dioxide of ingredient, but carbon thermal transition method needs to use coal as gas
Body transforming agent not only wastes coal resources, can also cause secondary pollution to environment.
To solve this problem, the present invention provides a kind of method using biomass carbon chemical recycling of carbon dioxide, comprising:
The first step carbonizes leaf by microwave heating, obtains biomass carbon；
Second step, the carbon dioxide for generating biomass carbon and coal-burning boiler or gas fired-boiler microwave heating to 700~
Reaction generates carbon monoxide under conditions of 1100 DEG C, it is preferred that reaction pressure 2-10atm.
Wherein, leaf includes but is not limited to arbor leaf, Chinese parasol leaf, maple leaf, ginkgo leaf etc..
Chemical equation based on biomass carbon and carbon dioxide reaction are as follows:
Biomass energy is stored in the biomass such as leaf, is that plant by chlorophyll converts solar energy into chemical energy
The energy being stored in biomass, leaf have the characteristics that type is more, amount is big, Urban fallen leaves are collected, are carbonized, are given birth to
Substance charcoal, and reacted biomass carbon as the gas transforming agent of carbon dioxide with carbon dioxide, it not only can be reasonable
Using wastes such as Urban fallen leaves, biomass carbon chemical recycling of carbon dioxide can also be utilized, coal heating boiler, gas heating are reduced
The discharge of boiler and coal-burning power plant's carbon dioxide, and it is translated into recycling carbon monoxide.Further, since biomass contains
Sulphur and nitrogen content are low, and the discharge amount of sulfur dioxide, nitrogen oxides and dust is more much smaller than fossil fuel after burning, with biomass carbon
As the gas transforming agent of carbon dioxide, coal resources on the one hand can be saved, secondary pollution on the other hand can be also reduced.
When carbonizing to leaf and biomass carbon and carbon dioxide is made to use microwave heating when reacting.It is conventional
Heating, external heat source make heat pass to inside by outside, not only inefficiency, but also cause by way of conducting with convection current
Temperature distributing disproportionation.Microwave is a kind of electromagnetic wave of frequency in 300MHz-300GHz, and microwave heating is that material will in electromagnetic field
The microwave energy of own absorption is the thermal energy of substance, belongs to volumetric heating.Compared with conventional heating mode, microwave heating tool
There is many advantages, such as instantaneity, globality, selectivity, high efficiency and safety non-pollution.
Wherein, the molar ratio of carbon dioxide and biomass carbon is preferably 1:1-1:1.5, and the biomass carbon amount of may skip is in dioxy
Change carbon, to improve titanium dioxide charcoal percent conversion.
Wherein, the carbonization temperature of leaf and time can be adjusted according to the composition of the leaf of actual use, it is preferred that first
The carbonization temperature of leaf is 500-700 DEG C in step, it is further preferred that carbonization time is 1-2h.
Wherein, since leaf water content itself is abundant, microwave first is carried out to leaf preferably before carbonizing to leaf
Heat drying, it is preliminary to remove wherein moisture；Then microwave heating preheating is carried out to leaf, dry, preheating temperature and time can
The water content adjustment of leaf according to actual treatment, it is preferred that drying temperature is 90-110 DEG C, drying time 1-2h；Microwave
The temperature of heating preheating is 200-400 DEG C, time 1-2h.
Wherein, since the leaf being usually collected into is loose, heap density is small, preferably between carbonizing to leaf, will receive
The leaf screening collected, removes the foreign matter and soil in leaf, crushes, then compound stalk forming, obtains that density is big, facilitates transhipment
Biomass block；Preferably, the size of the leaf obtained after crushed is 2-5mm；It is further preferred that after compound stalk forming
The size of the leaf arrived is 10-100mm.
Preferably, further include carbon monoxide made from biomass carbon and carbon dioxide reaction is collected for use as coal-burning boiler or
The fuel gas of gas fired-boiler utilizes again, improves energy utilization rate.
It is further preferred that preferably in the sundries and soil for crushing with being removed before compound stalk forming in the leaf being collected into.
It is a further object of the present invention to provide a kind of devices using biomass carbon chemical recycling of carbon dioxide.
It using the device of biomass carbon chemical recycling of carbon dioxide include biomass microwave retort 1 described in the present embodiment, raw
Substance charcoal feeding device 2, carbon dioxide microwave reburner 3, appliance for applying carbon dioxide 4 and carbon monoxide storage tank 5, biomass
The discharge port of microwave retort 1 is connect by biomass carbon feeding device 2 with the feed opening of carbon dioxide microwave reburner 4, and two
The gas outlet of carbonoxide feedway 4 is connect with the air inlet of carbon dioxide microwave reburner 3, carbon dioxide microwave reburner 3
Gas outlet connect with the air inlet of carbon monoxide storage tank 5, the gas outlet of carbon monoxide storage tank 5 and coal-burning boiler or combustion gas
The fuel inlet of boiler 14 connects.
Biomass microwave charing is added in the biological material that will be collected into, such as leaf, stalk, sawdust, rice husk, branch etc.
In furnace 1, microwave heating carries out carbonization reaction, obtains biomass carbon, biomass carbon is delivered to dioxy through biomass carbon feeding device 2
Change in carbon microwave reburner 3, the carbon dioxide provided with appliance for applying carbon dioxide 4 reacts under microwave heating, generates an oxygen
Change carbon, and is stored in carbon monoxide storage tank 5.The device can utilize biological material such as Urban fallen leaves etc. by coal heating pot
The CO 2 waste gas that furnace, gas heating boiler and coal-burning power plant generate is converted into the carbon monoxide that can be utilized again, not only may be used
With wastes such as reasonable utilization Urban fallen leaves, CO2 emission is reduced, and since biomass sulfur-bearing and nitrogen content are low, burning
The discharge amount of sulfur dioxide, nitrogen oxides and dust is more much smaller than fossil fuel afterwards, using biomass carbon as the gas of carbon dioxide
Body transforming agent can also save coal resources, reduce secondary pollution.
In technical solution, it is preferred that further include leaf drying oven 6 and leaf preheating furnace 12, the discharge port of leaf drying oven 6
It is connect with the feed opening of leaf preheating furnace 12, the discharge port of leaf preheating furnace 12 and the feed opening of biomass microwave retort 1 connect
It connects.The biological material being collected into is dried in leaf drying oven 6, removes the moisture in biological material, and carry out
Medium temperature preheating, is then re-fed into biomass microwave retort 1 and is carbonized.Wherein leaf drying oven 6 is optional in the prior art
Various types of heating furnaces or drying box realize that various types of heating furnaces can be used to realize for leaf preheating furnace 12, it is preferred that tree
Leaf drying oven 6 selects microwave oven to realize, leaf preheating furnace 12 uses microwave oven, and external heat source passes through when conventional heating
The mode of conduction and convection current, makes heat pass to inside by outside, not only inefficiency, but also lead to temperature distributing disproportionation, and micro-
Wave heating is the thermal energy that the microwave energy of own absorption is substance by material in electromagnetic field, belongs to volumetric heating, microwave
Heating has many advantages, such as instantaneity, globality, selectivity, high efficiency and safety non-pollution.
In technical solution, it is preferred that also set up biomass pretreatment portion, biomass pretreatment before leaf drying oven 6
Portion includes screening machine 13, pulverizer 7 and compression-molding apparatus 8, and the discharge port of screening machine 13 is connect with the feed inlet of pulverizer 7,
The discharge port of pulverizer 7 is connect with the feed inlet of compression-molding apparatus 8, the discharge port and leaf drying oven 6 of compression-molding apparatus 8
Feed inlet connection.The screened machine 13 of the biological material being collected into screens out wherein foreign matter and soil, and crushing through pulverizer 7 is one
Determine granule size, then through 8 boil down to biomass block of compression-molding apparatus, material conveying is more convenient.Wherein, compression forming fills
Setting 8 can be screw extruder, piston compressor or pressure roller molding machine.
In technical solution, it is preferred that further include ash content collection device 9, ash content collection device 9 and carbon dioxide microwave convert
The ash outlet of furnace 3 connects, and is collected to the ash content that carbon dioxide conversion reaction generates in carbon dioxide microwave reburner 3,
Ash content collection device 9 can be ash content collecting bin.
Wherein, various types of microwave retorts disclosed in the prior art can be used to realize for biomass microwave retort 1,
It is biomass carbon by biological material pyrolysis charring under conditions of starvation.
Wherein, carbon dioxide microwave reburner 3 can be used various types of microwave ovens disclosed in the prior art real
It is existing.Preferably, carbon dioxide microwave reburner 3 includes biomass carbon preheating zone 31 and carbon dioxide conversion area 32, carbon dioxide
Microwave reburner 3 further includes combustion chamber 33, and combustion chamber 33 is equipped with air inlet and air outlet, and the air inlet and biomass of combustion chamber are micro-
For the pyrolysis gas outlet of wave retort 1 by piping connection, pipeline is equipped with blower, is equipped with heat transfer on the outside of biomass carbon preheating zone 31
The gas outlet of collet 34, combustion chamber 33 is connect with the air inlet of heat-transferring jacket 34, and carbon dioxide conversion area 32 is externally provided with microwave hair
Raw device 35.Pyrolysis gas can be constantly generated during biomass carbonated, it is flammable to contain methane, carbon monoxide, hydrogen etc. in pyrolysis gas
Gas also will cause the waste of fuel gas if direct emission not only pollutes the environment.Biomass carbonated generation in the device
Pyrolysis gas constantly blasted in combustion chamber 33 by blower, in combustion chamber 33 as fuel combustion generate high-temperature flue gas, high temperature cigarette
Gas is introduced into carbon dioxide microwave reburner in the heat-transferring jacket 34 in 31 outside of biomass carbon preheating zone, is preheated for biomass carbon
31 heat supply of area, biomass carbon preheating do not need too high temperature, and heat brought by high-temperature flue gas can play biomass carbon pre-
Heat effect, and in the carbon dioxide conversion area 32 of biomass carbon and carbon dioxide reaction then yet by the microwave generator 35 in outside
Carry out microwave heating.The device can make full use of the combustible pyrolysis's gas generated in carbonization reaction, save needed for preheating biomass carbon
The energy.
Specifically, carbon dioxide microwave reburner 3 is vertical heater, the air inlet of carbon dioxide microwave reburner 3 is set
In the bottom of vertical heater, the feed opening of carbon dioxide microwave reburner 3 is set to the top of vertical heater.Carbon dioxide by
The bottom air inlet of carbon dioxide microwave reburner 3 enters in reburner, biomass carbon by carbon dioxide microwave reburner 3 top
Portion is added in furnace, and the CO gas for reacting generation is discharged by the top gas outlet of carbon dioxide microwave reburner.
Wherein, it is preferred that the pyrolysis gas outlet of biomass microwave retort 1 is connect with the entrance of gas-solid separator 10, gas
The solid-phase outlet of solid separator 10 is connect with ash content collection device 9, the gaseous phase outlet of gas-solid separator 10 and combustion chamber 33 into
Port connection.During biomass carbonated, a part of solid powder can be taken in the pyrolysis gas of generation out of, operation after a certain period of time may be used
After pipeline blockage, setting gas-solid separator 10 can be made to separate, solid powder can be isolated and drain into ash content collection device 9
In.
Wherein, due to being also possible to that certain tar can be volatilized during biomass carbonated, tar condensing is easily managed in pipeline
Road blocking, is preferably provided tar trap 11, tar trap 11 be set to gas-solid separator 10 outlet and combustion chamber 33 into
Between port, the tar generated in substance carbonization process can be trapped, prevent tar condensing from making pipeline blockage in pipeline.
Preferably, biomass carbon feeding device 2 includes biomass carbon collecting bin 21, feeding tube 22 and screw feed rod 23,
The entrance of biomass carbon collecting bin 21 is connect with the discharge port of biomass microwave retort 1, the outlet of biomass carbon collecting bin 21
It is connect by feeding tube 22 with the feed opening of carbon dioxide microwave reburner 3, screw feed rod 23 is set in feeding tube 22.Biology
The biomass carbon that matter microwave retort 1 generates is received to biomass carbon collecting bin 21, into feeding tube 22, through in feeding tube 22
23 spiral of screw feed rod agitation push in carbon dioxide microwave reburner 3.
It can be using biomass carbon as carbon dioxide using the device of biomass carbon chemical recycling of carbon dioxide described in the present embodiment
Gas transforming agent reacted with carbon dioxide, the wastes such as reasonable utilization Urban fallen leaves, reduce coal heating boiler, combustion
The discharge of gas heating boiler and coal-burning power plant's carbon dioxide, and it is translated into recycling carbon monoxide；With biomass carbon
As the gas transforming agent of carbon dioxide, coal resources on the one hand can be saved, secondary pollution on the other hand can be also reduced；The dress
It is simple to set structure, it is easy to operate；The pyrolysis gas that biomass carbonated process generates is utilized as carbon dioxide microwave reburner again
The heat supply of middle biomass carbon preheating zone can reduce the discharge of polluted gas, energy saving.
It is specifically real below with reference to method of several embodiments to microwave heating biomass carbon chemical recycling of carbon dioxide of the invention
The mode of applying is described further:
Embodiment one
It is specifically included described in the present embodiment using the method for biomass carbon chemical recycling of carbon dioxide:
1. collecting city arbor fallen leaves；
2. removing the sundries and soil in the arbor fallen leaves being collected into；
3. the arbor being collected into fallen leaves are crushed to having a size of 2-5mm using pulverizer；
4. arbor is fallen leaves compression forming as the leaf briquetting having a size of 10-100mm using screw extruder；
5. leaf briquetting is put into leaf drying oven, the micro-wave drying 1h at 90-110 DEG C, and in 200-400 DEG C
Lower microwave preheating 1h；
6. the leaf briquetting after drying is put into biomass microwave retort, microwave heating is obtained to 700 DEG C of charing 1h
Biomass carbon；
7. obtained biomass carbon is added in carbon dioxide microwave reburner, supplied under confined conditions, being passed through by fire coal
The CO 2 waste gas that hot company, gas heating company or coal-burning power plant are collected into, the molar ratio of carbon dioxide and biomass carbon
For 1:1.2, microwave heating is reacted to 1100 DEG C, obtains carbon monoxide；
8. obtained carbon monoxide to be collected to and is used as coal-burning boiler heat supply company, gas fired-boiler heat supply company or coal-fired electricity
The fuel gas of factory.
Embodiment two
It is specifically included described in the present embodiment using the method for biomass carbon chemical recycling of carbon dioxide:
1. collecting city Chinese parasol leaf；
2. removing the sundries and soil in the Chinese parasol leaf being collected into；
3. the Chinese parasol leaf being collected into is crushed to having a size of 2-5mm using pulverizer；
4. Chinese parasol leaf compression forming is the leaf briquetting having a size of 10-100mm by use screw extruder；
5. leaf briquetting is put into leaf drying oven, the micro-wave drying 2h at 90-110 DEG C, and in 200-400 DEG C
Lower microwave preheating 2h；
6. the leaf briquetting after drying is put into biomass microwave retort, microwave heating is obtained to 500 DEG C of charing 2h
Biomass carbon；
7. obtained biomass carbon is added in carbon dioxide microwave reburner, supplied under confined conditions, being passed through by fire coal
The CO 2 waste gas that hot company, gas heating company or coal-burning power plant are collected into, the molar ratio of carbon dioxide and biomass carbon
For 1:1.5, microwave heating is reacted to 700 DEG C, obtains carbon monoxide；
8. obtained carbon monoxide to be collected to and is used as coal-burning boiler heat supply company, gas fired-boiler heat supply company or coal-fired electricity
The fuel gas of factory.
Embodiment three
It is specifically included described in the present embodiment using the method for biomass carbon chemical recycling of carbon dioxide:
1. collecting city maple leaf fallen leaves；
2. removing the sundries and soil in the maple leaf fallen leaves being collected into；
3. the maple leaf being collected into fallen leaves are crushed to having a size of 2-5mm using pulverizer；
4. maple leaf is fallen leaves compression forming as the leaf briquetting having a size of 10-100mm using screw extruder；
5. leaf briquetting is put into leaf drying oven, the micro-wave drying 1.5h at 90-110 DEG C, and in 200-400
Microwave preheating 1.5h at DEG C；
6. the leaf briquetting after drying is put into biomass microwave retort, microwave heating is obtained to 600 DEG C of charing 1.5h
To biomass carbon；
7. obtained biomass carbon is added in carbon dioxide microwave reburner, supplied under confined conditions, being passed through by fire coal
The CO 2 waste gas that hot company, gas heating company or coal-burning power plant are collected into, the molar ratio of carbon dioxide and biomass carbon
For 1:1, microwave heating is reacted to 900 DEG C, obtains carbon monoxide；
8. obtained carbon monoxide to be collected to and is used as coal-burning boiler heat supply company, gas fired-boiler heat supply company or coal-fired electricity
The fuel gas of factory.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. a kind of method using biomass carbon chemical recycling of carbon dioxide, it is characterised in that: include:
The first step carbonizes leaf by microwave heating, obtains biomass carbon；
Second step, the carbon dioxide microwave for generating the biomass carbon obtained in the first step and coal-burning boiler or gas fired-boiler
Heating, reaction generates carbon monoxide under conditions of temperature is 700-1100 DEG C, pressure is 2-10atm；Wherein, the titanium dioxide
The molar ratio of carbon and the biomass carbon is 1:(1-1.5).
2. the method according to claim 1 using biomass carbon chemical recycling of carbon dioxide, it is characterised in that: set in the first step
The carbonization temperature of leaf is 500-700 DEG C, carbonization time 1-2h.
3. the method according to claim 1 or 2 using biomass carbon chemical recycling of carbon dioxide, it is characterised in that: further include
The step of is carried out by micro-wave drying and carries out microwave heating preheating to the leaf after drying for the leaf before the first step；
The temperature of micro-wave drying is 90-110 DEG C, time 1-2h；The temperature of microwave heating preheating is 200-400 DEG C, and the time is
1-2h。
4. the method according to claim 3 using biomass carbon chemical recycling of carbon dioxide, it is characterised in that: further include right
Before the leaf carries out micro-wave drying, the leaf being collected into is sieved, is crushed, briquetting；The ruler of leaf after crushing
Very little is 2-5mm；The size of leaf is 10-100mm after briquetting.
5. the method according to claim 1 or 2 using biomass carbon chemical recycling of carbon dioxide, it is characterised in that: further include
The step of carbon monoxide that will acquire is collected；The carbon monoxide collected is used as the fuel gas of coal-burning boiler or gas fired-boiler
Body.
6. a kind of device using biomass carbon chemical recycling of carbon dioxide, it is characterised in that: including biomass microwave retort, biology
Matter charcoal feeding device, carbon dioxide microwave reburner, appliance for applying carbon dioxide and carbon monoxide storage tank, the biomass are micro-
The discharge port of wave retort is connect by the biomass carbon feeding device with the feed opening of the carbon dioxide microwave reburner,
The gas outlet of the appliance for applying carbon dioxide is connect with the air inlet of the carbon dioxide microwave reburner, the carbon dioxide
The gas outlet of microwave reburner is connect with the air inlet of the carbon monoxide storage tank, the gas outlet of the carbon monoxide storage tank
It is connect with the fuel inlet of coal-burning boiler or gas fired-boiler.
7. the device according to claim 6 using biomass carbon chemical recycling of carbon dioxide, it is characterised in that: further include leaf
Drying oven and leaf preheating furnace, the discharge port of the leaf drying oven are connect with the feed inlet of the leaf preheating furnace, the tree
The discharge port of leaf preheating furnace is connect with the feed opening of the biomass microwave retort.
8. the device according to claim 7 using biomass carbon chemical recycling of carbon dioxide, it is characterised in that: further include biology
Matter pretreatment portion, the biomass pretreatment portion include screening machine, pulverizer and compression-molding apparatus, the discharging of the screening machine
Mouth is connect with the feed inlet of the pulverizer, and the discharge port of the pulverizer is connect with the feed inlet of the compression-molding apparatus,
The discharge port of the compression-molding apparatus is connect with the feed inlet of the leaf drying oven.
9. according to the device as claimed in claim 6 to 8 using biomass carbon chemical recycling of carbon dioxide, it is characterised in that: also wrap
Ash content collection device is included, the ash content collection device is connect with the ash outlet of the carbon dioxide microwave reburner.
10. according to the device as claimed in claim 6 to 8 using biomass carbon chemical recycling of carbon dioxide, it is characterised in that: institute
Stating biomass carbon feeding device includes biomass carbon collecting bin, feeding tube and screw feed rod, the biomass carbon collecting bin
Entrance is connect with the discharge port of the biomass microwave retort, and the outlet of the biomass carbon collecting bin passes through the feeding tube
It is connect with the feed opening of the carbon dioxide microwave reburner, the screw feed rod is set in the feeding tube.
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