CN107161998A - A kind of preparation method of wooden chaff charcoal and wooden chaff charcoal, purposes - Google Patents
A kind of preparation method of wooden chaff charcoal and wooden chaff charcoal, purposes Download PDFInfo
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- CN107161998A CN107161998A CN201710578824.0A CN201710578824A CN107161998A CN 107161998 A CN107161998 A CN 107161998A CN 201710578824 A CN201710578824 A CN 201710578824A CN 107161998 A CN107161998 A CN 107161998A
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- wooden chaff
- charcoal
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- chaff charcoal
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/022—Carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D49/00—Separating dispersed particles from gases, air or vapours by other methods
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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
- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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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
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
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- Ceramic Engineering (AREA)
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- Materials Engineering (AREA)
- Civil Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Structural Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Inorganic Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses a kind of preparation method of wooden chaff charcoal, including：Wooden chaff crushed after being dried is crossed into 60 mesh sieve, wood powder is obtained；It is that 10 30% sodium bicarbonate solutions are mixed by weight 15: 10 by wood powder and mass fraction, moisture drying is obtained wood powder mixture by dipping after 12 hours；Wood powder mixture is positioned over sealed sintering furnace, nitrogen is passed through in the absence of oxygen, sintering furnace temperature is raised to 600 800 DEG C, after thermally decomposing 12 hours, room temperature is cooled to, obtains the wooden chaff charcoal；The preparation method of the present invention is using primary raw material of the wooden chaff as charcoal, anaerobic high temperature pyrolysis reaction is carried out after being impregnated using sodium bicarbonate solution, sodium acid carbonate is attached to wooden chaff surface by dipping and decomposes generation carbon dioxide at high temperature, increase the thermal interface of wooden chaff, significantly shorten the time of wooden chaff thermal decomposition, improve the production efficiency of charcoal, and wooden chaff conversion ratio.
Description
Technical field
The present invention relates to charcoal manufacturing technology field.It is more particularly related to a kind of system of wooden chaff charcoal
Preparation Method and wooden chaff charcoal, purposes.
Background technology
Charcoal refer under conditions of anoxic biomass carry out in high-temperature process, biomass it is oily it is gentle burn, remain
Under be exactly charcoal.Charcoal is almost pure carbon, and burying to after underground can have hundreds of will not disappear to more than one thousand years, equal to carbon
Seal up for safekeeping into soil, contribute to slowing global warming, triggered the broad interest to charcoal at present, in worldwide.Have
Many scientists think, carbon quite stable is caught with charcoal, can be by carbon " lock " in underground centuries, and allow soil
Become more fertile；It can in addition contain reduce the discharge of nitrogen dioxide and methane isothermal chamber gas.Charcoal is almost pure carbon, buries
Can there are hundreds of will not be disappeared to more than one thousand years behind underground, soil has been entered equal to carbon sequestration.Charcoal is rich in micropore, not only can be with
The content of organics of soil is supplemented, moisture and nutriment can also be effectively preserved, increase soil fertility.In fact, why fertile
Black is mostly presented in fertile soil, is exactly because phosphorus content is high.
Britain's environmental protection great master's James's Lovelock claims, and charcoal is the unique hope for mitigating Disastrous climate change.
Researcher also illustrates that charcoal can also improve agricultural productivity, reduces the demand to the intensive fertilizer of carbon.The hole of charcoal particle
Structure very easily assembles nutriment and beneficial microbe, so that soil becomes fertile, beneficial to plant growth, realizes volume increase
While allow agricultural have more continuation.Even better, it is locked in carbon in biota, rather than allows it to be discharged into air.
The content of the invention
Present invention aim to address above mentioned problem conversion ratio and effect that wooden chaff changes into charcoal are improved there is provided a kind of
The preparation method of the wooden chaff charcoal of rate, preparation method of the invention is using primary raw material of the wooden chaff as charcoal, using carbon
Anaerobic high temperature pyrolysis reaction is carried out after sour hydrogen sodium solution dipping, sodium acid carbonate is attached to wooden chaff surface by dipping and divided at high temperature
Solution produces carbon dioxide, increases the thermal interface of wooden chaff, significantly shortens the time of wooden chaff thermal decomposition, improves the production of charcoal
Efficiency, and wooden chaff conversion ratio.
The technical scheme that the present invention is provided is：
A kind of preparation method of wooden chaff charcoal, including：
Step 1: wooden chaff crushed after being dried is crossed into 60 mesh sieve, wood powder is obtained；
Step 2: being that 10-30% sodium bicarbonate solutions are mixed by weight 1-5: 10 by wood powder and mass fraction, impregnate
After 1-2 hours, moisture drying is obtained into wood powder mixture；
Step 3: wood powder mixture is positioned over into sealed sintering furnace, nitrogen is passed through in the absence of oxygen, will sinter
Furnace temperature is raised to 600-800 DEG C, after thermally decomposing 1-2 hours, is cooled to room temperature, obtains the wooden chaff charcoal.
Preferably, in addition to：The solid obtained after room temperature is cooled to, is mass fraction 20-40% nitric acid through over-richness
Dipping is after 1-2 hours, toward addition manganese nitrate solution, lanthanum nitrate hexahydrate, zinc nitrate solution, ammonium nitrate solution in solid after filtering,
Dipping is placed in ball mill after ball milling 1-2 hours after 1-2 hours, and being 40-60 DEG C in temperature dries moisture drying, then places
In sealed sintering furnace, nitrogen is passed through in the absence of oxygen, sintering furnace temperature is raised to 700-900 DEG C, thermally decomposed 2-4 hours
Afterwards, it is cooled to room temperature and obtains the wooden chaff charcoal.
Preferably, the manganese nitrate solution concentration is mass fraction 3-8%, and the lanthanum nitrate hexahydrate concentration is quality point
Number 1-5%, the zinc nitrate solution concentration is mass fraction 8-15%, and the concentration of ammonium nitrate solution is mass fraction 10-
20%, the manganese nitrate solution, lanthanum nitrate hexahydrate, zinc nitrate solution, the amount of ammonium nitrate solution addition are with being cooled to after room temperature
The weight such as obtained solid.
Preferably, the ball milling mixing liquid of 100 mesh sieve is crossed after ball mill ball milling 1-2 hours, it is impossible to sift out
Solid add untill deionized water is milled to and can sieve again, finally by the ball milling mixing liquid of gained, ball milling is mixed in ball mill
Close 20 minutes, terminate ball milling.
The present invention also provides wooden chaff charcoal prepared by a kind of preparation method using described wooden chaff charcoal.
The present invention also provides a kind of purposes of described wooden chaff charcoal, applied in coating, playing purification air adsorption
Dust in air and formaldehyde effect, content of the wooden chaff charcoal in coating is 10-20g/L.
The present invention also provides a kind of purposes of described wooden chaff charcoal, can applied to oil slick in purifying water body absorption water
It is added directly to addition 0.1-0.3g/L in water, may be made as filter layer or filter is adsorbed.
The present invention at least includes following beneficial effect：
Firstth, preparation method of the invention is soaked using wooden chaff as the primary raw material of charcoal using sodium bicarbonate solution
Anaerobic high temperature pyrolysis reaction is carried out after stain, sodium acid carbonate is attached to wooden chaff surface by dipping and decomposes generation titanium dioxide at high temperature
Carbon, increases the thermal interface of wooden chaff, significantly shortens the time of wooden chaff thermal decomposition, improves the production efficiency of charcoal, Yi Jimu
Chaff conversion ratio；
Secondth, the effect impregnated by the sodium acid carbonate of addition, can dramatically increase charcoal after pyrolytic
Porosity so that the hole of charcoal is uniform, increases charcoal specific surface area, so as to significantly increase the adsorption capacity of charcoal；
3rd, preparation method of the invention is preferred, also using manganese nitrate solution, lanthanum nitrate hexahydrate, zinc nitrate solution, nitre
Sour ammonium is impregnated, and after anaerobic sintering so that charcoal surface attachment manganese, lanthanum, Zn-ef ficiency, improves the activity of charcoal so that
Charcoal has significant suction-operated for the dust and formaldehyde in purification air, and the absorption to oil slick in sewage significantly increases
By force, and for formaldehyde also there is capacity of decomposition；
4th, by ball milling manganese, lanthanum, Zn-ef ficiency can be made uniformly to be attached to biological carbon surface, and charcoal particle is uniform,
Improve charcoal specific surface area；
5th, the obtained wooden chaff biological carbon of the present invention is added to the ability in coating with significant purification air, adsorbs empty
Dust in gas significantly reduces the PM2.5 values of air, moreover it is possible to absorption and decomposing formaldehyde；The present invention is made wooden chaff biological carbon and can also answered
Greasy dirt for absorption effluent.
Further advantage, target and the feature of the present invention embodies part by following explanation, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Embodiment
With reference to example below, the present invention is described in further detail, to make those skilled in the art with reference to specification
Word can be implemented according to this.
Embodiment 1
The preparation method of wooden chaff charcoal includes：
Step 1: collecting wooden chaff scrap, 60 mesh sieve were crushed after wooden chaff is dried under the sun, wood powder is obtained；
Step 2: being that 10% sodium bicarbonate solution is mixed by weight 1: 10 by wood powder and mass fraction, impregnate 1 hour
Afterwards, moisture drying is obtained into wood powder mixture；
Step 3: wood powder mixture is positioned over into sealed sintering furnace, nitrogen is passed through in the absence of oxygen, will sinter
Furnace temperature is raised to 600 DEG C, after thermally decomposing 1 hour, is cooled to room temperature, obtains the wooden chaff charcoal.
Embodiment 2
The preparation method of wooden chaff charcoal includes：
Step 1: collecting wooden chaff scrap, 60 mesh sieve were crushed after wooden chaff is dried under the sun, wood powder is obtained；
Step 2: being that 30% sodium bicarbonate solution is mixed by weight 5: 10 by wood powder and mass fraction, impregnate 2 hours
Afterwards, moisture drying is obtained into wood powder mixture；
Step 3: wood powder mixture is positioned over into sealed sintering furnace, nitrogen is passed through in the absence of oxygen, will sinter
Furnace temperature is raised to 700 DEG C, after thermally decomposing 1.5 hours, is cooled to the solid obtained after room temperature, is mass fraction 35% through over-richness
It is molten toward addition manganese nitrate solution, lanthanum nitrate hexahydrate, zinc nitrate solution, ammonium nitrate in solid after filtering after hydrogen nitrate dipping 1.5 hours
Liquid, dipping is placed in ball milling in ball mill and after 1.5 hours, crosses the ball milling mixing liquid of 100 mesh sieve, it is impossible to sieve after 1.5 hours
The solid of son is added untill deionized water is milled to and can sieve again, finally by the ball milling mixing liquid of gained in ball mill ball milling
Mixing 20 minutes, terminates ball milling, and being 50 DEG C in temperature dries moisture drying, then is positioned over sealed sintering furnace, is passed through nitrogen
In the absence of oxygen, sintering furnace temperature is raised to 800 DEG C, after thermally decomposing 3 hours, is cooled to room temperature and obtains the wooden chaff life
Thing charcoal；Wherein, the manganese nitrate solution concentration is mass fraction 5%, and the lanthanum nitrate hexahydrate concentration is mass fraction 2%, institute
Zinc nitrate solution concentration is stated for mass fraction 12%, the concentration of ammonium nitrate solution is mass fraction 12%, the manganese nitrate is molten
Liquid, lanthanum nitrate hexahydrate, zinc nitrate solution, the amount of ammonium nitrate solution addition are with being cooled to the weight such as solid obtained after room temperature.
Experiment 1, is added in coating, content of the wooden chaff charcoal in coating using embodiment 1-2 wooden chaff charcoal
For 15g/L, comparative example 1 is the coating without wooden chaff charcoal, carries out powder to room A, B, C wall of 3 10 square meters respectively
Brush, paints thickness, and consumption is the same, after rendering wall is dry, by the PM2.5 values regulation in 3 rooms to 120, content of formaldehyde 1.5mg/
m2, room is sealed, PM2.5 values and content of formaldehyde, data such as table 1 below are tested after two weeks：
Table 1
| Room | PM2.5 values | Content of formaldehyde (mg/m2) | |
| Embodiment 1 | A | 42 | ND |
| Embodiment 2 | B | 33 | ND |
| Comparative example 1 | C | 125 | 1.35 |
From table 1, the present invention has the effect of absorption PM2.5 particles and formaldehyde, significantly reduces PM2.5 values and formaldehyde.
Experiment 2：Using embodiment 1-2 wooden chaff charcoal, to the sewage sampling 2000L of certain sewage treatment plant, sewage contains
Oil slick, 2 groups of E, F are divided into by 2000L sewage sample, correspond to add wooden chaff charcoal made from embodiment 1-2 respectively
200g, stir process is after 2.5 hours, the sewage of test processes, oil slick content ND.
Although embodiment of the present invention is disclosed as above, it is not restricted in specification and embodiment listed
With it can be applied to various suitable the field of the invention completely, can be easily for those skilled in the art
Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, the present invention is not limited
In specific details and shown here as the embodiment with description.
Claims (7)
1. a kind of preparation method of wooden chaff charcoal, it is characterised in that including：
Step 1: wooden chaff crushed after being dried is crossed into 60 mesh sieve, wood powder is obtained；
Step 2: being that 10-30% sodium bicarbonate solutions are mixed by weight 1-5: 10 by wood powder and mass fraction, 1-2 is impregnated
After hour, moisture drying is obtained into wood powder mixture；
Step 3: wood powder mixture is positioned over into sealed sintering furnace, nitrogen is passed through in the absence of oxygen, will sinter furnace temperature
Degree is raised to 600-800 DEG C, after thermally decomposing 1-2 hours, is cooled to room temperature, obtains the wooden chaff charcoal.
2. the preparation method of wooden chaff charcoal according to claim 1, it is characterised in that also include：It is cooled to after room temperature
Obtained solid, after being mass fraction 20-40% hydrogen nitrate dippings 1-2 hours through over-richness, toward adding nitric acid in solid after filtering
Manganese solution, lanthanum nitrate hexahydrate, zinc nitrate solution, ammonium nitrate solution, dipping are placed in ball mill ball milling 1-2 hours after 1-2 hours
Afterwards, it is 40-60 DEG C in temperature to dry moisture drying, then is positioned over sealed sintering furnace, is passed through nitrogen in the absence of oxygen,
Sintering furnace temperature is raised to 700-900 DEG C, after thermally decomposing 2-4 hours, room temperature is cooled to and obtains the wooden chaff charcoal.
3. the preparation method of wooden chaff charcoal according to claim 2, it is characterised in that the manganese nitrate solution concentration is
Mass fraction 3-8%, the lanthanum nitrate hexahydrate concentration is mass fraction 1-5%, and the zinc nitrate solution concentration is mass fraction
8-15%, the concentration of ammonium nitrate solution is mass fraction 10-20%, and the manganese nitrate solution, lanthanum nitrate hexahydrate, zinc nitrate are molten
Liquid, the amount of ammonium nitrate solution addition are with being cooled to the weight such as solid obtained after room temperature.
4. the preparation method of wooden chaff charcoal according to claim 3, it is characterised in that small by ball mill ball milling 1-2
When after cross the ball milling mixing liquid of 100 mesh sieve, it is impossible to the solid sifted out, which adds deionized water and is milled to sieve again, is
Only, finally by the ball milling mixing liquid of gained in ball mill ball milling mixing 20 minutes, terminate ball milling.
5. it is a kind of biological using the wooden chaff prepared according to the preparation method of any described wooden chaff charcoal in claim 1-4
Charcoal.
6. a kind of purposes of wooden chaff charcoal according to claim 5, applied in coating, playing, purification air adsorption is empty
Dust and formaldehyde effect in gas, content of the wooden chaff charcoal in coating is 10-20g/L.
7. a kind of purposes of wooden chaff charcoal according to claim 5, applied to oil slick in purifying water body absorption water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710578824.0A CN107161998A (en) | 2017-07-14 | 2017-07-14 | A kind of preparation method of wooden chaff charcoal and wooden chaff charcoal, purposes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710578824.0A CN107161998A (en) | 2017-07-14 | 2017-07-14 | A kind of preparation method of wooden chaff charcoal and wooden chaff charcoal, purposes |
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| CN107161998A true CN107161998A (en) | 2017-09-15 |
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| CN201710578824.0A Pending CN107161998A (en) | 2017-07-14 | 2017-07-14 | A kind of preparation method of wooden chaff charcoal and wooden chaff charcoal, purposes |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110342510A (en) * | 2018-04-02 | 2019-10-18 | 兰固 | A kind of production method of corn stalk active carbon |
| CN110776937A (en) * | 2018-07-30 | 2020-02-11 | 因康热处理设备（上海）有限公司 | Solid waste total thermal cracking process and solid waste total thermal cracking device thereof |
| CN112058233A (en) * | 2020-09-22 | 2020-12-11 | 东北农业大学 | Preparation method and application of magnetic porous biochar modified by lanthanum hydroxide |
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| CN104801306A (en) * | 2015-03-26 | 2015-07-29 | 中国科学院生态环境研究中心 | Powdered activated carbon catalyst prepared from turf used as raw material and preparation method |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104801306A (en) * | 2015-03-26 | 2015-07-29 | 中国科学院生态环境研究中心 | Powdered activated carbon catalyst prepared from turf used as raw material and preparation method |
Non-Patent Citations (2)
| Title |
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| 戴静 等: "四种原料热解产生的生物炭对Pb2+和Cd2+的吸附特性研究", 《北京大学学报（自然科学版）》 * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110342510A (en) * | 2018-04-02 | 2019-10-18 | 兰固 | A kind of production method of corn stalk active carbon |
| CN110776937A (en) * | 2018-07-30 | 2020-02-11 | 因康热处理设备（上海）有限公司 | Solid waste total thermal cracking process and solid waste total thermal cracking device thereof |
| CN112058233A (en) * | 2020-09-22 | 2020-12-11 | 东北农业大学 | Preparation method and application of magnetic porous biochar modified by lanthanum hydroxide |
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