CN104549150A - Method for recycling waste activated carbon for injection in combination of bottom nitrogen blowing, microwave and ultrasound - Google Patents
Method for recycling waste activated carbon for injection in combination of bottom nitrogen blowing, microwave and ultrasound Download PDFInfo
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- CN104549150A CN104549150A CN201410838770.3A CN201410838770A CN104549150A CN 104549150 A CN104549150 A CN 104549150A CN 201410838770 A CN201410838770 A CN 201410838770A CN 104549150 A CN104549150 A CN 104549150A
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 127
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 33
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 20
- 238000007664 blowing Methods 0.000 title claims abstract description 17
- 239000002699 waste material Substances 0.000 title abstract description 9
- 238000002347 injection Methods 0.000 title abstract description 7
- 239000007924 injection Substances 0.000 title abstract description 7
- 238000004064 recycling Methods 0.000 title abstract description 4
- 238000002604 ultrasonography Methods 0.000 title abstract 3
- 239000000463 material Substances 0.000 claims abstract description 29
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 238000011069 regeneration method Methods 0.000 claims description 41
- 230000008929 regeneration Effects 0.000 claims description 40
- 238000009413 insulation Methods 0.000 claims description 15
- 230000001172 regenerating effect Effects 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 8
- 229960000907 methylthioninium chloride Drugs 0.000 claims description 8
- 238000004321 preservation Methods 0.000 abstract 3
- 125000004122 cyclic group Chemical group 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 description 22
- 239000003814 drug Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000011148 porous material Substances 0.000 description 6
- 230000014759 maintenance of location Effects 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 230000008439 repair process Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- CEYULKASIQJZGP-UHFFFAOYSA-L disodium;2-(carboxymethyl)-2-hydroxybutanedioate Chemical compound [Na+].[Na+].[O-]C(=O)CC(O)(C(=O)O)CC([O-])=O CEYULKASIQJZGP-UHFFFAOYSA-L 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000008103 glucose Substances 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- MIDXCONKKJTLDX-UHFFFAOYSA-N 3,5-dimethylcyclopentane-1,2-dione Chemical compound CC1CC(C)C(=O)C1=O MIDXCONKKJTLDX-UHFFFAOYSA-N 0.000 description 1
- 108010082495 Dietary Plant Proteins Proteins 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 238000005904 alkaline hydrolysis reaction Methods 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000013736 caramel Nutrition 0.000 description 1
- 239000005539 carbonized material Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000004042 decolorization Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000002778 food additive Substances 0.000 description 1
- 235000013373 food additive Nutrition 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- -1 iron ion Chemical class 0.000 description 1
- LPUQAYUQRXPFSQ-DFWYDOINSA-M monosodium L-glutamate Chemical compound [Na+].[O-]C(=O)[C@@H](N)CCC(O)=O LPUQAYUQRXPFSQ-DFWYDOINSA-M 0.000 description 1
- 235000013923 monosodium glutamate Nutrition 0.000 description 1
- 239000004223 monosodium glutamate Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- HELHAJAZNSDZJO-OLXYHTOASA-L sodium L-tartrate Chemical compound [Na+].[Na+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O HELHAJAZNSDZJO-OLXYHTOASA-L 0.000 description 1
- 239000001509 sodium citrate Substances 0.000 description 1
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 1
- 239000001433 sodium tartrate Substances 0.000 description 1
- 229960002167 sodium tartrate Drugs 0.000 description 1
- 235000011004 sodium tartrates Nutrition 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
- 150000003722 vitamin derivatives Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- 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
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3416—Regenerating or reactivating of sorbents or filter aids comprising free carbon, e.g. activated carbon
Abstract
The invention relates to a method for recycling waste activated carbon for injection in combination of bottom nitrogen blowing, microwave and ultrasound, and belongs to the technical field of comprehensive resource utilization. According to the method, firstly, the waste activated carbon for injection is placed in a microwave oven, then, N2 is blown in the oven from a duct placed at the bottom of a material at the flow speed of 5-20 ml/min, microwave is started, the temperature is increased to 600-700 DEG C at the heating rate of 180-200 DEG C per minute, heat preservation is performed for 5-8 minutes, ultrasound with power of 300-600 W is started while heat preservation is performed, the material finishing heat preservation is cooled to the room temperature, and recycled activated carbon for injection can be obtained. By means of the method, waste is turned into wealth, the cyclic utilization of the waste is realized, resource and environment pressure is relieved, and the method has excellent economic and ecological benefits.
Description
Technical field
The present invention relates to the method that a kind of bottom nitrogen blowing United microwave ultrasonic regeneration discards injection-use activated carbon, belong to technical field of resource comprehensive utilization.
Background technology
Active carbon, because of its huge specific area, flourishing pore structure and extremely strong adsorption capacity, has been widely used in multiple fields such as chemical industry, pharmacy, environmental protection.Along with the development of human society, the consumption of active carbon is increasing, and find suitable process conditions realize active carbon recycle improve its level of resources utilization significant.
Injection-use activated carbon is mainly applicable to bulk drug, medicine intermediate, finished medicines, all kinds of injection, the decolorizing and refining of reagent, taste removal purification.Also can be used for manufacturing oral carbon plate, anti-enteron aisle germ medicine, food alkaline hydrolysis poison pharmaceutical raw material and the pure various amino acids industry of active carbon chemical analysis, refined sugar decolouring, monosodium glutamate industry, glucose industry, glucose industry, chemical assistant, dyestuff intermediate, food additives, the decolouring of the contour pigment solution of medicine preparation, flavouring, the decolorization and purification of the products such as animal/vegetable protein, biochemical product, medicine intermediate, vitamin, antibiotic, deodorizing, removal of impurities.Its industrial consumption is very large, and if effectively do not process after using, very easily severe contamination is caused to surrounding enviroment.Discarded injection-use activated carbon after regeneration not only can recycle in former technical process, but also may be used for the purified treatment of industrial wastewater so that it reaches discharge standard.Therefore regenerating waste injection-use activated carbon can improve its utilization ratio, achieves recycling of resource to a certain extent, also can alleviate environmental pollution, has good environment, the energy and social benefit.
The present invention with discarded injection-use activated carbon for raw material, the mode of nitrogen blowing bottom material is adopted to drastically increase the regeneration effect of nitrogen first, reduce the regeneration cost of active carbon, alleviate environmental pollution, accomplished to turn waste into wealth, achieved the comprehensive utilization of natural resources, and what adopt in regenerative process is microwave heating, significantly reduce energy resource consumption, greatly saved production cost, there is good environment, the energy and social benefit.The specific area of active carbon born is again high and be rich in micropore, high adsorption capacity, ash content are lower.This is just for strengthening comprehensive utilization to discarded object, being avoided its contaminated environment to provide a practicable method.
Applicant is in the patent of 200510019670.9 in the patent No., disclose one " microwave plasma regeneration method of active carbon ", this method utilizes microwave-excitation irony discharge body to produce plasma, then plasma is oxidized the organic matter be adsorbed on damp state active carbon, simultaneously irony discharge body, produce Inner electrolysis effect degradation of organic substances between active carbon and organic matter, after peroxidating and degraded, make to obtain regeneration and activity recovery with the industrial activited carbon crossed.Foregoing invention is compared with the present invention, one be raw material of the present invention is powder-material, if add irony discharge body and obstructed protective gas in regenerative process, because its local electronic temperature is at least 10000 DEG C, be this discarded active carbon of 200 objects for granularity be very easy scaling loss; Two is that foregoing invention with the addition of irony discharge body, easily form iron ion, and active carbon has the function of adsorbing metal ions under the environment of hot humid.For the active carbon that will be used for specially in injection production process, if be mingled with some metal ions can produce secondary pollution to this medicine, immeasurable security risk is produced to patient.
Applicant is in the patent of 201110343234.2 in the patent No., disclose one " method of microwave-assisted regeneration active carbon ", this method is for raw material with the waste active carbon produced in sugared production process, the sodium tartrate aqueous solution or sodium citrate aqueous solution is utilized to be leached by the organic components such as the caramel in activated carbon granule surface and macropore, then add water and mix and add activating agent absolute ethyl alcohol, Sodium Polyacrylate, natrium citricum or their mixture, with ammoniacal liquor, system pH adjusts between 8.5 ~ 10.5 by NaOH or their mixture, be placed in microwave irradiation device radiation treatment 10 ~ 30min, thus realize the regeneration of active carbon.Foregoing invention is compared with the present invention: one is that said method introduces the materials such as absolute ethyl alcohol, Sodium Polyacrylate, natrium citricum in regenerative process, not only make experimental implementation become complicated cost to add, but also bring the secondary pollution of regenerated carbon, and the present invention does not introduce any auxiliary reagent, complete cleanliness without any pollution, operates also simple; Two are the fineness of discarded active carbon in said method is 5 order ~ 200 orders, and in this experiment, requirement is 200 orders, and it is very very difficult for but reaching so good regeneration effect when fineness is so little comparatively speaking; As long as three is micro wave regeneration temperature retention time 5 ~ 8min in the present invention, and the above-mentioned invention microwave radiation processing 10min ~ 30min that authorized, reduce energy consumption in contrast.
Summary of the invention
For above-mentioned prior art Problems existing and deficiency, the invention provides the method that a kind of bottom nitrogen blowing United microwave ultrasonic regeneration discards injection-use activated carbon.The present invention discards injection-use activated carbon for raw material with one, adopts nitrogen blowing bottom material first, under lower temperature retention time, and regenerates active charcoal.The method has accomplished to turn waste into wealth, and achieves recycling of discarded object, and be conducive to the pressure alleviating resource and environment, have superior economy and ecological benefits, the present invention is achieved through the following technical solutions.
A kind of bottom nitrogen blowing United microwave ultrasonic regeneration discards the method for injection-use activated carbon, its concrete steps are as follows: first discarded injection-use activated carbon being placed in power is 0 ~ 40kW microwave oven, is then blown into N with the flow velocity of 5 ~ 20ml/min from the conduit be placed in bottom material
2open again after temperature is risen to 600 ~ 700 DEG C with the heating rate of 180 ~ 200 DEG C/min by microwave and be incubated 5 ~ 8min, while insulation, open power is the ultrasonic wave of 300 ~ 600W, and the material cool to room temperature after insulation being terminated can obtain regenerating injection-use activated carbon.
Described discarded injection-use activated carbon granularity is 200 orders, and methylene blue value is 30 ~ 45mg/g.
Describedly be blown into N
2flow velocity depend on the thickness of material, ensure that material does not play dirt.
The invention has the beneficial effects as follows:
(1) this method production technology is very simple, and operation is quite simple, and energy consumption is lower, with low cost, and pollution-free;
(2) conventional art just passes into nitrogen simply in stove, and such regeneration effect is also not obvious, because regenerative process can produce a large amount of regeneration gas, the gas that bottom produces is difficult to be discharged into material skin, can hinder the regeneration of substrate material like this.Simple logical nitrogen can only protect material not ablated, and a regeneration technology effects on surface one deck has positive effect.The place of this method most critical is the mode taking nitrogen blowing bottom insulation material in period, can take to outside material by regeneration gas in time, improve its dynamic conditions, has given full play to the feature of preparation process, has drastically increased regeneration effect.Insulation temperature of charge in period is higher, and than being easier to ablation, nitrogen gas-bearing formation is also conducive to protecting material, improves its productive rate;
(3) this method takes the mode of microwave ultrasonic wave combining and regenerating, not only make use of hyperacoustic cavitation and super immixture, it can expand the hole of active carbon, and the dynamic conditions of regenerative process can be improved, but also make use of the feature that microwave heats from the inside to surface, greatly reduce temperature retention time, the temperature retention time of technical process only needs 10 ~ 20% of traditional handicraft temperature retention time;
(4) this method can reduce this active carbon work manufacturing the use amount in injection process, achieves the comprehensive utilization of resources of this discarded object simultaneously, decreases the discharge of discarded object, thus decrease environmental pollution, have effectively achieved the sustainable development of enterprise.
Accompanying drawing explanation
Fig. 1 is discarded injection-use activated carbon and the adsorption isotherm of regeneration injection-use activated carbon at 77K in embodiment 1;
Fig. 2 is discarded injection-use activated carbon scanning electron microscope (SEM) photograph in embodiment 1;
Fig. 3 is the scanning electron microscope (SEM) photograph regenerating injection-use activated carbon in embodiment 1.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described.In order to understand the present invention better, below in conjunction with example and accompanying drawing, the present invention is further described.In experiment, specific area adopts Full-automatic physical chemical adsorption instrument (Autosorb-1-C, Kang Ta company) to measure, and methylene blue value measures according to standard GB/T/T12496.10-1999.
Embodiment 1
Bottom this, nitrogen blowing United microwave ultrasonic regeneration discards the method for injection-use activated carbon, its concrete steps are as follows: first discarded injection-use activated carbon being placed in power is 30kW microwave oven, is then blown into N with the flow velocity of 5ml/min from the conduit be placed in bottom material
2, then open after temperature is risen to 700 DEG C with the heating rate of 200 DEG C/min by microwave and be incubated 6min, while insulation, open power is the ultrasonic wave of 600W, and the material cool to room temperature after insulation being terminated can obtain regenerating injection-use activated carbon.
Methylene blue value through above-mentioned steps regeneration injection-use activated carbon is 180.0 mg/g, and regeneration yield is 97.51 %.
As shown in Figure 1, as shown in Figure 2, regeneration injection-use activated carbon as shown in Figure 3 for the scanning electron microscope (SEM) photograph of discarded injection-use activated carbon for the graph of pore diameter distribution of discarded injection-use activated carbon and regeneration injection-use activated carbon; Can calculate discarded injection-use activated carbon BET specific surface area from the data Fig. 1 is 203m
2/ g, carbonized material total pore volume is 0.45ml/g, and its average pore size is 6.13nm; The BET specific surface area of regeneration injection-use activated carbon reaches 985m
2/ g, its total pore volume is 1.08ml/g, and its average pore size is 3.27nm.
Embodiment 2
Bottom this, nitrogen blowing United microwave ultrasonic regeneration discards the method for injection-use activated carbon, its concrete steps are as follows: first discarded injection-use activated carbon being placed in power is 25kW microwave oven, is then blown into N with the flow velocity of 10ml/min from the conduit be placed in bottom material
2, then open after temperature is risen to 600 DEG C with the heating rate of 180 DEG C/min by microwave and be incubated 8min, while insulation, open power is the ultrasonic wave of 300W, and the material cool to room temperature after insulation being terminated can obtain regenerating injection-use activated carbon.
Methylene blue value through above-mentioned steps regeneration injection-use activated carbon is 187.5mg/g, and regeneration yield is 97.13%.
Embodiment 3
Bottom this, nitrogen blowing United microwave ultrasonic regeneration discards the method for injection-use activated carbon, its concrete steps are as follows: first discarded injection-use activated carbon being placed in power is 20kW microwave oven, is then blown into N with the flow velocity of 15ml/min from the conduit be placed in bottom material
2, then open after temperature is risen to 600 DEG C with the heating rate of 190 DEG C/min by microwave and be incubated 5min, while insulation, open power is the ultrasonic wave of 600W, and the material cool to room temperature after insulation being terminated can obtain regenerating injection-use activated carbon.
Methylene blue value through above-mentioned steps regeneration injection-use activated carbon is 183.0mg/g, and regeneration yield is 97.35%.
Embodiment 4
Bottom this, nitrogen blowing United microwave ultrasonic regeneration discards the method for injection-use activated carbon, its concrete steps are as follows: first discarded injection-use activated carbon being placed in power is 1kW microwave oven, is then blown into N with the flow velocity of 20ml/min from the conduit be placed in bottom material
2, then open after temperature is risen to 650 DEG C with the heating rate of 185 DEG C/min by microwave and be incubated 7min, while insulation, open power is the ultrasonic wave of 400W, and the material cool to room temperature after insulation being terminated can obtain regenerating injection-use activated carbon.
Methylene blue value through above-mentioned steps regeneration injection-use activated carbon is 195.0mg/g, and regeneration yield is 96.98%.
Embodiment 5
Bottom this, nitrogen blowing United microwave ultrasonic regeneration discards the method for injection-use activated carbon, its concrete steps are as follows: first discarded injection-use activated carbon being placed in power is 40kW microwave oven, is then blown into N with the flow velocity of 18ml/min from the conduit be placed in bottom material
2, then open after temperature is risen to 680 DEG C with the heating rate of 195 DEG C/min by microwave and be incubated 5min, while insulation, open power is the ultrasonic wave of 500W, and the material cool to room temperature after insulation being terminated can obtain regenerating injection-use activated carbon.
Methylene blue value through above-mentioned steps regeneration injection-use activated carbon is 186.0mg/g, and regeneration yield is 97.24%.
By reference to the accompanying drawings the specific embodiment of the present invention is explained in detail above, but the present invention is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, various change can also be made under the prerequisite not departing from present inventive concept.
Claims (3)
1. a bottom nitrogen blowing United microwave ultrasonic regeneration discards the method for injection-use activated carbon, it is characterized in that concrete steps are as follows: first discarded injection-use activated carbon being placed in power is 0 ~ 40kW microwave oven, is then blown into N with the flow velocity of 5 ~ 20ml/min from the conduit be placed in bottom material
2open again after temperature is risen to 600 ~ 700 DEG C with the heating rate of 180 ~ 200 DEG C/min by microwave and be incubated 5 ~ 8min, while insulation, open power is the ultrasonic wave of 300 ~ 600W, and the material cool to room temperature after insulation being terminated can obtain regenerating injection-use activated carbon.
2. bottom according to claim 1 nitrogen blowing United microwave ultrasonic regeneration discards the method for injection-use activated carbon, it is characterized in that: described discarded injection-use activated carbon granularity is 200 orders, and methylene blue value is 30 ~ 45mg/g.
3. bottom according to claim 1 nitrogen blowing United microwave ultrasonic regeneration discards the method for injection-use activated carbon, it is characterized in that: described in be blown into N
2flow velocity depend on the thickness of material, ensure that material does not play dirt.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410838770.3A CN104549150A (en) | 2014-12-30 | 2014-12-30 | Method for recycling waste activated carbon for injection in combination of bottom nitrogen blowing, microwave and ultrasound |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410838770.3A CN104549150A (en) | 2014-12-30 | 2014-12-30 | Method for recycling waste activated carbon for injection in combination of bottom nitrogen blowing, microwave and ultrasound |
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| CN201410838770.3A Pending CN104549150A (en) | 2014-12-30 | 2014-12-30 | Method for recycling waste activated carbon for injection in combination of bottom nitrogen blowing, microwave and ultrasound |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105293489A (en) * | 2015-11-16 | 2016-02-03 | 昆明理工大学 | Regeneration method of waste active carbon for monosodium glutamate by supersonic wave and spray |
| CN110152636A (en) * | 2018-01-26 | 2019-08-23 | 山东星火科学技术研究院 | A kind of diesel desulfurization sorbents regeneration technology and equipment |
| CN112058250A (en) * | 2020-08-25 | 2020-12-11 | 华南理工大学 | Method for carrier gas assisted microwave-vacuum combined regeneration of volatile organic compound-loaded adsorbent and device for method |
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2014
- 2014-12-30 CN CN201410838770.3A patent/CN104549150A/en active Pending
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| Title |
|---|
| 蒋剑春 等: "《活性炭应用理论与技术》", 30 November 2010, 化学工业出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105293489A (en) * | 2015-11-16 | 2016-02-03 | 昆明理工大学 | Regeneration method of waste active carbon for monosodium glutamate by supersonic wave and spray |
| CN105293489B (en) * | 2015-11-16 | 2018-03-06 | 昆明理工大学 | A kind of method of ultrasonic atomization regenerating waste monosodium glutamate activated carbon |
| CN110152636A (en) * | 2018-01-26 | 2019-08-23 | 山东星火科学技术研究院 | A kind of diesel desulfurization sorbents regeneration technology and equipment |
| CN112058250A (en) * | 2020-08-25 | 2020-12-11 | 华南理工大学 | Method for carrier gas assisted microwave-vacuum combined regeneration of volatile organic compound-loaded adsorbent and device for method |
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Application publication date: 20150429 |