CN105502393A - Macadamia nut shell activated carbon and microwave heating preparation method thereof - Google Patents
Macadamia nut shell activated carbon and microwave heating preparation method thereof Download PDFInfo
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- CN105502393A CN105502393A CN201610049050.8A CN201610049050A CN105502393A CN 105502393 A CN105502393 A CN 105502393A CN 201610049050 A CN201610049050 A CN 201610049050A CN 105502393 A CN105502393 A CN 105502393A
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- hawaii
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- microwave
- activated carbon
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 238000002360 preparation method Methods 0.000 title claims abstract description 32
- 238000010438 heat treatment Methods 0.000 title claims abstract description 18
- 235000018330 Macadamia integrifolia Nutrition 0.000 title abstract 7
- 240000000912 Macadamia tetraphylla Species 0.000 title abstract 7
- 235000003800 Macadamia tetraphylla Nutrition 0.000 title abstract 7
- 238000000034 method Methods 0.000 claims abstract description 29
- 239000002994 raw material Substances 0.000 claims abstract description 18
- 230000003213 activating effect Effects 0.000 claims abstract description 13
- 235000013399 edible fruits Nutrition 0.000 claims description 31
- 239000012190 activator Substances 0.000 claims description 15
- 230000007935 neutral effect Effects 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 claims description 9
- 230000000274 adsorptive effect Effects 0.000 claims description 9
- 238000010000 carbonizing Methods 0.000 claims description 9
- 239000012153 distilled water Substances 0.000 claims description 9
- 239000000706 filtrate Substances 0.000 claims description 9
- 229960000907 methylthioninium chloride Drugs 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 6
- 238000007873 sieving Methods 0.000 claims description 6
- 238000010298 pulverizing process Methods 0.000 claims description 5
- 239000002699 waste material Substances 0.000 claims description 5
- 230000002745 absorbent Effects 0.000 claims description 3
- 239000002250 absorbent Substances 0.000 claims description 3
- 239000006227 byproduct Substances 0.000 claims description 3
- 239000003610 charcoal Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000002154 agricultural waste Substances 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 238000003763 carbonization Methods 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 238000009776 industrial production Methods 0.000 abstract 1
- 238000011031 large-scale manufacturing process Methods 0.000 abstract 1
- 239000000047 product Substances 0.000 description 8
- 239000003245 coal Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 241001070941 Castanea Species 0.000 description 2
- 235000014036 Castanea Nutrition 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000010903 husk Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 210000000582 semen Anatomy 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention provides macadamia nut shell activated carbon and a microwave heating preparation method thereof. The preparation method comprises the steps that Sinkiang macadamia nut shells are adopted as raw materials, after an activating agent is added, microwave heating is carried out under protection of N2, and the macadamia nut shell activated carbon is prepared. The macadamia nut shell activated carbon is prepared through the microwave method, the carbonization and activating processes are achieved at the same time, the preparation time is shortened, energy is saved, and therefore the cost of activated carbon preparation is reduced, and the preparation method is economical and efficient. The macadamia nut shells are adopted as the raw material, agricultural waste is fully utilized, environmental pollution is reduced, development and sustainable utilization of Sinkiang biological resources are achieved, and an industrial production foundation of the macadamia nut shell activated carbon is achieved. The method is small in equipment investment and easy to operate, the activated carbon with the large specific surface area is generated, the preparation period is short, energy consumption is low, and large-scale production can be easily achieved.
Description
Technical field
The invention belongs to gac preparation field, be specifically related to a kind of Hawaii active fruit shell carbon and microwave heating preparation method thereof.
Background technology
The present invention is with Hawaii shell for gac prepared by raw material, and Hawaii nut is mainly planted in Yunnan Province of China, has important edibleness, but a large amount of Hawaii shells is dropped or incinerates, and causes the waste of resource and the pollution of environment.Along with the reinforcement of home and abroad environment protection, for water treatment, the activated carbon product market requirement that decolouring and gas adsorption are separated will increase considerably, on market, most of activated carbon product is all for raw material with coal or timber, and these are all Nonrenewable resources, the present invention probes into out microwave method and prepares Hawaii nut based active carbon technique, wish can effectively utilize discarded resource by the method preparing gac, the pollution that waste brings can not only be solved like this, resource more as a kind of cheapness is effectively developed, there is good development prospect.
At present, prepare the traditional heating mode that gac is conventional, it take hard coal as raw material that such as patent 200610123444.X has reported, and KOH is the active carbon from coal of a kind of high-specific surface area prepared by activator, and this preparation method will 600 ~ 880
owithin under C 2 ~ 5 hours consuming time, complete; It is raw material that patent 201210246423.2 adopts with chestnut shell, and zinc chloride is that activator obtains the Chestnut shell active carbon had compared with high absorption property, also needs 300 ~ 550
ounder C, reaction is carried out for 60 ~ 90 minutes, but the traditional heating mode reaction process time is long, and production cost is high, and power consumption is large, can not meet industrial demand.Microwave technology is as a kind of emerging heating technique, greatly can not only improve some chemical reaction rates, reduce the reaction times, simplify finishing sequence, and microwave heating has high efficiency, energy saving, globality and the feature such as homogeneity, operation convenience.Therefore microwave heating has started to be applied to gac preparation field as Novel heating technology, prepares carbonaceous material more efficiently.But at present to prepare the raw material of gac most with biological material or agricultural wastes for the microwave method of report, the people such as such as Malay Foo with happy pericarp, Semen Cucurbitae shell, Pericarpium Musae, industrial solid wastes etc. are raw material, prepare gac by microwave method; The people such as the Li Xiaoming of Hunan China take then Pericarppium arachidis hypogaeae as raw material, soak in phosphoric acid solution, then carbonize in microwave device, activate the gac obtaining high absorption property; But the rarely seen report of research of Hawaii active fruit shell carbon is prepared by microwave method.
Given this, it is raw material that the present invention chooses Hawaii, Xinjiang shell, take KOH as activator, carbonizes and activating process by microwave heating method to it simultaneously, and by controlling preparation condition, preparation Hawaii active fruit shell carbon, has good economic benefit and application prospect.
Summary of the invention
In order to solve the problem, the invention provides the microwave heating preparation method of a kind of Hawaii active fruit shell carbon, described preparation method is with Hawaii, Xinjiang shell for raw material, after adding activator, at N
2microwave heating is carried out, obtained Hawaii active fruit shell carbon under protection;
Further, described preparation method comprises:
S1: choose Hawaii, Xinjiang shell and carry out pulverizing and sieving;
S2: by activator and the Hawaii shell that crushes in mass ratio for 0.5-3.0 mixes;
S3: activator and raw material are placed in microwave device, at N
2under protection, carry out microwave exposure reaction;
S4: setting microwave power 300-700W, the microwave time is under 10-15 minute condition, carries out carbonizing and activating process simultaneously;
S5: by product washing to neutral, dry, grinding, obtains Hawaii active fruit shell carbon;
Further, in described S1, pulverizing and the Hawaii shell powder after sieving are 100 ~ 200 orders;
Further, the activator in described S3 is KOH;
Further, Hawaii, the Xinjiang shell chosen in described S1 is the shell waste after Xinjiang Hawaii nut eats or processes;
Further, wash in described S5 to neutrality and refer to HCl washing after absorbent charcoal material cooling, then be washed with distilled water to filtrate in neutral;
Further, a kind of Hawaii nut gac, described Hawaii nut gac is powdered active carbon prepared by above-mentioned S1-S5;
Further, the productive rate of described Hawaii nut gac is 13.00 ~ 37.50%, to the adsorptive capacity of methylene blue at 449.76 ~ 599.84mg/g;
Further, the optimal tables area of described Hawaii active fruit shell carbon is 1496.05m
2/ g, total pore volume is 0.864cm
3/ g, mean pore size is 2.43nm;
Beneficial effect of the present invention is as follows:
1) prepared by the microwave method that the present invention adopts, realizing charing and activating process simultaneously, namely shorten preparation time, in turn save the energy, thus reduce the cost preparing gac, is a kind of preparation method of economical and efficient;
2) the present invention is with Hawaii shell for raw material, not only makes full use of agricultural wastes, and decreases environmental pollution, is exploitation and the sustainable use of a kind of Xinjiang Biological resources, is the suitability for industrialized production basis of Hawaii active fruit shell carbon;
3) present method facility investment is few, simple to operate, and generates active carbon with high specific surface area, and preparation cycle is short, and energy consumption is low, is easy to accomplish scale production.
Accompanying drawing explanation
Fig. 1 is the N of Hawaii of the present invention active fruit shell carbon
2absorption-analytic curve;
Fig. 2 is the scanning electron microscope (SEM) photograph of Hawaii nut husk as raw material of the present invention;
Fig. 3 is Hawaii of the present invention active fruit shell carbon scanning electron microscope (SEM) photograph.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is explained in further detail.Should be appreciated that specific embodiment described herein only for explaining the present invention, being not intended to limit the present invention.On the contrary, the present invention is contained any by the substituting of making on marrow of the present invention and scope of defining of claim, amendment, equivalent method and scheme.Further, in order to make the public have a better understanding to the present invention, in hereafter details of the present invention being described, detailedly describe some specific detail sections.Do not have the description of these detail sections can understand the present invention completely for a person skilled in the art yet.
Below in conjunction with the drawings and specific embodiments, the invention will be further described, but not as a limitation of the invention.Most preferred embodiment is enumerated below for of the present invention:
As shown in Figure 1-Figure 3, the microwave heating preparation method of a kind of Hawaii active fruit shell carbon, described preparation method is with Hawaii, Xinjiang shell for raw material, after adding activator, at N
2carry out microwave heating under protection, obtained Hawaii active fruit shell carbon, concrete, described preparation method comprises:
S1: choose Hawaii, Xinjiang shell and carry out pulverizing and sieving, Hawaii, the Xinjiang shell chosen is the shell waste after Xinjiang Hawaii nut eats or processes, and pulverizes and Hawaii shell powder after sieving is 100 ~ 200 orders;
S2: by activator and the Hawaii shell that crushes in mass ratio for 0.5-3.0 mixes, described activator is KOH;
S3: activator and raw material are placed in microwave device, at N
2under protection, carry out microwave exposure reaction;
S4: setting microwave power 300-700W, the microwave time is under 10-15 minute condition, carries out carbonizing and activating process simultaneously;
S5: by product washing to neutral, dry, grinding, obtains Hawaii active fruit shell carbon, described washing to neutrality refers to HCl washing after absorbent charcoal material cooling, then is washed with distilled water to filtrate in neutral.
A kind of Hawaii nut gac, be prepared from by aforesaid method, described Hawaii nut gac is powdered active carbon, the productive rate of described Hawaii nut gac is 13.00 ~ 37.50%, to the adsorptive capacity of methylene blue at 449.76 ~ 599.84mg/g, the optimal tables area of described Hawaii active fruit shell carbon is 1496.05m
2/ g, total pore volume is 0.864cm
3/ g, mean pore size is 2.43nm.
Embodiment 1
By 1.00g100 object Hawaii shell and 3.00gKOH mixing, be placed in microwave device, setting microwave power is 500W, and the microwave time is 10 minutes, at N
2under protection, carry out carbonizing and activating process simultaneously, product HCl is washed, then be washed with distilled water to filtrate in neutral, 110
oc is dried, and obtain Hawaii active fruit shell carbon, productive rate is 19.00%.The adsorptive capacity of Hawaii active fruit shell carbon to methylene blue of gained reaches 599.78mg/g.
Embodiment 2
By 1.00g100 object Hawaii shell and 1.00gKOH mixing, be placed in microwave device, setting microwave power is 500W, and the microwave time is 10 minutes, at N
2under protection, carry out carbonizing and activating process simultaneously, product HCl is washed, then be washed with distilled water to filtrate in neutral, 110
oc is dried, and obtain Hawaii active fruit shell carbon, productive rate is 37.50%.The adsorptive capacity of Hawaii active fruit shell carbon to methylene blue of gained reaches 449.76mg/g.
Embodiment 3
By 1.00g100 object Hawaii shell and 2.00gKOH mixing, be placed in microwave device, setting microwave power is 700W, and the microwave time is 15 minutes, at N
2under protection, carry out carbonizing and activating process simultaneously, product HCl is washed, then be washed with distilled water to filtrate in neutral, 110
oc is dried, and obtain Hawaii active fruit shell carbon, productive rate is 21.50%.The adsorptive capacity of Hawaii active fruit shell carbon to methylene blue of gained reaches 499.76mg/g.
Embodiment 4
By 1.00g100 object Hawaii shell and 2.00gKOH mixing, be placed in microwave device, setting microwave power is 500W, and the microwave time is 12.5 minutes, at N
2under protection, carry out carbonizing and activating process simultaneously, product HCl is washed, then be washed with distilled water to filtrate in neutral, 110
oc is dried, and obtain Hawaii active fruit shell carbon, productive rate is 13.00%.The adsorptive capacity of Hawaii active fruit shell carbon to methylene blue of gained reaches 569.69mg/g.
Embodiment 5
By 1.00g100 object Hawaii shell and 3.00gKOH mixing, be placed in microwave device, setting microwave power is 700W, and the microwave time is 12.59 minutes, at N
2under protection, carry out carbonizing and activating process simultaneously, product HCl is washed, then be washed with distilled water to filtrate in neutral, 110
oc is dried, and obtain Hawaii active fruit shell carbon, productive rate is 13.00%.The adsorptive capacity of Hawaii active fruit shell carbon to methylene blue of gained reaches 599.77mg/g.
Embodiment 6
By 1.00g100 object Hawaii shell and 2.50gKOH mixing, be placed in microwave device, setting microwave power is 600W, and the microwave time is 12.5 minutes, at N
2under protection, carry out carbonizing and activating process simultaneously, product HCl is washed, then be washed with distilled water to filtrate in neutral, 110
oc is dried, and obtain Hawaii active fruit shell carbon, productive rate is 33.30%.The adsorptive capacity of Hawaii active fruit shell carbon to methylene blue of gained reaches 630.83mg/g.
Above-described embodiment, the just one of the present invention's more preferably embodiment, the usual change that those skilled in the art carries out within the scope of technical solution of the present invention and replacing all should be included in protection scope of the present invention.
Claims (9)
1. a microwave heating preparation method for Hawaii active fruit shell carbon, is characterized in that, described preparation method is with Hawaii, Xinjiang shell for raw material, after adding activator, at N
2microwave heating is carried out, obtained Hawaii active fruit shell carbon under protection.
2. preparation method according to claim 1, is characterized in that, described preparation method comprises:
S1: choose Hawaii, Xinjiang shell and carry out pulverizing and sieving;
S2: be 0.5 ~ 3.0 mixing in mass ratio by activator and the Hawaii shell that crushes;
S3: activator and raw material are placed in microwave device, at N
2under protection, carry out microwave exposure reaction;
S4: setting microwave power 300 ~ 700W, the microwave time is under 10 ~ 15 minutes conditions, carries out carbonizing and activating process simultaneously;
S5: by product washing to neutral, dry, grinding, obtains Hawaii active fruit shell carbon.
3. preparation method according to claim 2, is characterized in that, in described S1, pulverizing and the Hawaii shell powder after sieving are 100 ~ 200 orders.
4. preparation method according to claim 2, is characterized in that, the activator in described S3 is KOH.
5. preparation method according to claim 2, is characterized in that, Hawaii, the Xinjiang shell chosen in described S1 is the shell waste after Xinjiang Hawaii nut eats or processes.
6. preparation method according to claim 2, is characterized in that, washs to neutrality and refers to HCl washing after absorbent charcoal material cooling, then be washed with distilled water to filtrate in neutral in described S5.
7. a Hawaii nut gac, based on the preparation method described in the claims 1-6, is characterized in that, described Hawaii nut gac is powdered active carbon prepared by above-mentioned S1-S5.
8. Hawaii nut gac according to claim 7, is characterized in that, the productive rate of described Hawaii nut gac is 13.00 ~ 37.50%, to the adsorptive capacity of methylene blue at 449.76 ~ 599.84mg/g.
9. Hawaii nut gac according to claim 7, is characterized in that, the optimal tables area of described Hawaii active fruit shell carbon is 1496.05m
2/ g, total pore volume is 0.864cm
3/ g, mean pore size is 2.43nm.
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| CN201610049050.8A CN105502393A (en) | 2016-01-25 | 2016-01-25 | Macadamia nut shell activated carbon and microwave heating preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106744951A (en) * | 2017-03-21 | 2017-05-31 | 哈尔滨工程大学 | A kind of quick method for preparing activated carbon |
| CN108485688A (en) * | 2018-04-13 | 2018-09-04 | 哈尔滨工业大学 | A kind of improved method that biomass microwave calcination process prepares charcoal fuel |
| CN109608248A (en) * | 2019-01-28 | 2019-04-12 | 西安工程大学 | A kind of charcoal composite bentonite base phosphorus potassium slow release fertilizer and preparation method thereof |
| CN111689496A (en) * | 2019-03-12 | 2020-09-22 | 淮阴师范学院 | Persimmon peel-based nitrogen-doped activated carbon and preparation method thereof |
| CN117003236A (en) * | 2023-09-28 | 2023-11-07 | 广东韩研活性炭科技股份有限公司 | Shell activated carbon and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106744951A (en) * | 2017-03-21 | 2017-05-31 | 哈尔滨工程大学 | A kind of quick method for preparing activated carbon |
| CN108485688A (en) * | 2018-04-13 | 2018-09-04 | 哈尔滨工业大学 | A kind of improved method that biomass microwave calcination process prepares charcoal fuel |
| CN109608248A (en) * | 2019-01-28 | 2019-04-12 | 西安工程大学 | A kind of charcoal composite bentonite base phosphorus potassium slow release fertilizer and preparation method thereof |
| CN111689496A (en) * | 2019-03-12 | 2020-09-22 | 淮阴师范学院 | Persimmon peel-based nitrogen-doped activated carbon and preparation method thereof |
| CN117003236A (en) * | 2023-09-28 | 2023-11-07 | 广东韩研活性炭科技股份有限公司 | Shell activated carbon and preparation method and application thereof |
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Application publication date: 20160420 |