CN1326769C - Manufacture of carbide and formed activated charcoal and carbide and formed activated charcoal - Google Patents
Manufacture of carbide and formed activated charcoal and carbide and formed activated charcoal Download PDFInfo
- Publication number
- CN1326769C CN1326769C CNB021429901A CN02142990A CN1326769C CN 1326769 C CN1326769 C CN 1326769C CN B021429901 A CNB021429901 A CN B021429901A CN 02142990 A CN02142990 A CN 02142990A CN 1326769 C CN1326769 C CN 1326769C
- Authority
- CN
- China
- Prior art keywords
- coal
- weight
- carbide
- manufacture method
- comparative example
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Carbon And Carbon Compounds (AREA)
Abstract
The invention obtains a carbonized product excellent in strengths and desirable as e.g. a heat insulating material, an adsorbent, a flameproofing material, an antistatic material, a heat-resistant material, or a chemical-resistant material and inexpensively produces a formed active coal having high strengths and being desirable in the treatment of waste gases containing sulfur oxides, nitrogen oxides, chlorine compounds, etc. A carbonized product is produced by subjecting a feedstock being a noncaking coal having a fixed carbon of at least 70 wt% and an ash content of 3 to below 10 wt%, a blend of a noncaking coal having a fixed carbon of at least 70 wt% and a noncaking semianthracite having a fixed carbon of at least 50 wt% and an ash content of 3-25 wt%, or a blend of an anthracite and a noncaking semianthracite having a fixed carbon of at least 50 wt% and an ash content of 3-25 wt% to at least the forming step of forming the feedstock after adding a binder thereto and the carbonization step of carbonizing the obtained formed product. The carbonized product is activated to produce a formed active carbon.
Description
Technical field
The present invention relates to manufacture method and the carbide and the shaping gac of carbide and shaping gac.More specifically to relate to the fixed carbon composition be more than the 70 weight %, and for ash component is the noncaking coal of being discontented with 10 weight % more than the 3 weight %, the fixed carbon composition is the above noncaking coal of 70 weight % and the mixture of non-adhesive semi-anthracitic coal, perhaps the mixture of hard coal and non-adhesive semi-anthracitic coal is a raw material, at least through add the forming process that binding agent carries out moulding in these raw materials, the manufacture method of the manufacturing carbide of the destructive distillation operation of the resulting shaping thing of destructive distillation, manufacture method with the shaping gac that activates these carbide, and carbide and shaping gac.
Background technology
Gac is widely used as sorbing material in fields such as food, chemical industry, and extensively effectively is used in the aspect that public hazards prevention such as off gas treatment is removed.And, as the raw material of gac, the carbonaceous material of the plant class of fruit shells such as most use timber, charcoal, palm shell etc.On the other hand, consider from the aspect of cost, also can make the shaping gac of the carbonaceous material that uses mineral substance, for example, open the spy that to disclose in the clear 52-45598 communique with fixed carbon be that coal more than 70% is raw material, its fine powder is broken, granulation, the manufacture method of the shaping gac of steam activation in the process furnace more than 1000 ℃.
When using the shaping gac, the shaping gac should have high absorption property certainly as off gas treatments such as desulfurization, denitrogenations, but when carrying out gas processing such as desulfurization, denitrogenation with technical scale, requires to have high physical strength as the shaping gac.From such viewpoint, study and observe if above-mentioned spy is opened in the clear 52-45598 communique the disclosed shaping gac of being made by hard coals (ホ Application ゲ イ charcoal) such as foundation for a great undertaking coals, then can distinguish and also may not satisfy at aspect of performance.
As being the additive method of the shaping gac of raw material except making with the coal, the spy opens to disclose in clear 57-100910 communique and the flat 2-69313 communique of Te Kai raw material is carried out pre-distillation and activatory shaping activated charcoal or the desulfurization manufacture method with raw material of wood-charcoal, opens the spy and discloses the method for also making granular carbon as the powdered carbon of raw material by destructive distillation or activation of using in the flat 7-267619 communique.Simultaneously, these method operations are many, also may not be a kind of manufacture method to the favourable shaping gac of industry.
In addition, the spy opens clear 57-123809 number and special opening discloses the method that the mixture of forming, having specific rerum naturas such as cinder ordinal number by noncaking coal, caking coal and binding agent by heat treated is made desulfurization usefulness carbon material in clear 57-123810 number each communique, but in these methods owing to used expensive caking coal, certainly unfavorable to cost, there be the miscellaneous of the satisfied rerum natura of stipulating of blending noncaking coal and caking coal.In addition,, brought bad influence for plasticity, destructive distillation etc. owing to used caking coal, thereby, be restricted aspect shaping and the destructive distillation operation in order to avoid this shortcoming.
And, open in the flat 1-126214 communique the spy, the manufacture method of using as the gac that is crushed to the noncaking coal below 10 microns of feed coal is disclosed.But this method must have feed coal is crushed to miscellaneous pulverizing process below 10 microns.
Summary of the invention
During with technical scale manufacturing shaping gac, consider from the physical strength aspect, great majority use close-burning bituminous coal, and use by the dried gac that stays operation that coal is dissolved, but since still when using caking coal plasticity and destructive distillation poor, so behind pre-treatment low-temperature pyrolysis coal, generally form, the destructive distillation operation.But if carry out this pre-treatment, then operation is many, owing to use expensive bituminous coal, cost is somewhat expensive.Generally speaking, just descend, improve the intensity absorption property on the other hand, so the carbon material that absorption property, intensity satisfy simultaneously is desirable with regard to downward trend because granular carbon exist to improve absorption property intensity.Thereby, the object of the present invention is to provide with noncaking coal or hard coal etc. is raw material, the outstanding carbide of intensity and help the manufacture method of industry and activate the intensity of this carbide and absorption property balanced outstanding shaping gac and manufacture method thereof such as desulfurization, denitrogenation.
Present inventors are the result of wholwe-hearted research repeatedly, find, what influence destructive distillation and intensity is non-adhesive, by regulating ash component, can obtain destructive distillation, the physical strength carbide more outstanding than existing carbide, and desulfurization or the nitrogen removal performance shaping gac more outstanding than existing gac, finally finish the present invention.Promptly, the present invention is the manufacture method of carbide, it is characterized in that this method is is more than the 70 weight % and ash component is that the noncaking coal of being discontented with 10 weight % more than the 3 weight % is a raw material with the fixed carbon composition, at least through the manufacture method of the destructive distillation operation that in this coal, adds the resulting shaping thing of forming process, destructive distillation that binding agent forms.
Another invention of the present invention is the manufacture method of carbide, it is characterized in that in the noncaking coal more than the fixed carbon composition is 70 weight %, so that to be 50: 50 weight ratio to the maximum be more than the 50 weight % with respect to this coal with the fixed carbon composition and ash component is that the non-adhesive semi-anthracitic coal below the 25 weight % mixes more than the 3 weight %, mixture with such gained is a raw material, at least the destructive distillation operation manufacturing of the process resulting shaping thing of forming process, destructive distillation that the adding binding agent forms in this mixture.
Another invention of the present invention is the manufacture method of carbide, it is characterized in that this method is so that be 50: 50 weight ratio Mixed Stationary carbon component to the maximum with respect to this hard coal be more than the 50 weight % and ash component is the non-adhesive semi-anthracitic coal below the 25 weight % more than the 3 weight % in hard coal, mixture with such gained is a raw material, carries out the manufacture method of destructive distillation operation of the resulting shaping thing of forming process, destructive distillation of moulding through add binding agent in this mixture at least.
And another invention of the present invention is the manufacture method of the shaping gac of the above-mentioned carbide of activation.
Another invention of the present invention is carbide or the shaping gac of making by above-mentioned manufacture method.
And, another other invention of the present invention be the ash component amount to be that 5 weight % are above be discontented with 15 weight %, and the magnesium compound in the ash component, calcium cpd and iron cpd with respect to the total amount of ash component be respectively more than the 2 weight %, more than the 8 weight % and the shaping gac more than the 20 weight %.
Embodiment
Term in this application " more than " and " following " include given figure.
The 1st invention of the present invention is the manufacture method of carbide, it is characterized in that with the fixed carbon composition be more than the 70 weight % and ash component is that the noncaking coal of being discontented with 10 weight % more than the 3 weight % is a raw material, at least through the manufacture method of the destructive distillation operation that in this coal, adds the resulting shaping thing of forming process, destructive distillation that binding agent forms.Fixed carbon composition in the feed coal and ash component can be by measuring to determine according to JIS M 8812 coal classes and coke class-technical analysis method.
If use close-burning coal as feed coal, then since plasticity and destructive distillation significantly descend, so in the 1st invention, for the simplification of operation and improve intensity, must use cohesionless coal.In order to select cohesionless coal as the coal raw material, can measure cinder ordinal number described later (button index), selecting this cinder ordinal number is 0 coal.As the fixed carbon composition be more than the 70 weight % and ash component be more than the 3 weight % less than the object lesson of the noncaking coal of 10 weight %, can enumerate the anthracitic too western coal of producing as area, Chinese Ningxia.
In addition, can seek more high performance by in the above noncaking coal of 70 weight % of setting carbon component, mixing in the semi-anthracitic coal.Promptly, the 2nd invention of the present invention is the manufacture method of carbide, it is characterized in that in the noncaking coal more than the fixed carbon composition is 70 weight %, with the weight ratio Mixed Stationary carbon component that is 50: 50 with respect to this coal to the maximum is that the above and ash component of 50 weight % is the following non-adhesive semi-anthracitic coals of the above 25 weight % of 3 weight %, mixture with such gained is a raw material, at least the manufacture method of the destructive distillation operation of the forming process that forms through adding binding agent in this mixture, the resulting forming composition of destructive distillation.As the fixed carbon composition is noncaking coal more than the 70 weight %, and preferably using ash component is the above coals of being discontented with 10 weight % of 3 weight %.
As the non-adhesive semi-anthracitic coal that is mixed in the noncaking coal, can enumerate, for example, the Lingwu coal that area, Chinese Ningxia produces etc.Because along with the blending ratio of semi-anthracitic coal increases, there are downward trend in destructive distillation, intensity, so the mixture ratio of semi-anthracitic coal is preferred for being 50: 50 weight ratio to the maximum with respect to coal, by blending ratio being adjusted in this scope, can obtain desirable gac at an easy rate.
In addition, carbide of the present invention also can be by being more than the 50 weight % with the fixed carbon composition and ash component is that the semi-anthracitic coal below the 25 weight % is blended in the hard coal and makes more than the 3 weight %.Promptly, the 3rd invention of the present invention is the manufacture method of carbide, it is characterized in that in hard coal mixing aforesaid non-adhesive semi-anthracitic coal with the weight ratio that is 50: 50 with respect to this hard coal to the maximum, mixture with such gained is a raw material, at least the manufacture method of the destructive distillation operation of the process resulting shaping thing of forming process, destructive distillation that the adding binding agent forms in this mixture.
As previously discussed, in the manufacture method of carbide of the present invention, though with the fixed carbon composition is more than the 70 weight %, and ash component is the above noncaking coals of being discontented with 10 weight % of 3 weight %, the fixed carbon composition is that 70 weight % above noncaking coal and fixed carbon composition are more than the 50 weight %, and ash component is the mixture of the following non-adhesive semi-anthracitic coal of the above 25 weight % of 3 weight %, perhaps hard coal and fixed carbon composition are more than the 50 weight %, and ash component is that the mixture of the following non-adhesive semi-anthracitic coal of the above 25 weight % of 3 weight % is a raw material, but carbide of the present invention is to make through add the forming process that binding agent forms and the destructive distillation operation of the resulting forming composition of destructive distillation in these raw materials at least.If more specifically describe, then preferably with the broken granularity of raw material fine powder for being fit to, the coal of adding coal tar, coal-tar pitch etc. or the binding agent of petroleum-type and mixing, moulding, destructive distillation.
In forming process, preferably select the raw material and the binding agent thorough mixing that fine powder is broken such as mixing machine of two modes of Z type for use, at 180kg/cm
2Form under the above pressure and obtain immaculate shaping thing.As building mortion, can use the building mortion of roller press type, collar plate shape nodulizer formula, ring-like nodulizer formula, extrusion-type etc.The shape of shaping thing limits especially, can be according to suitably selected cylindric, cylindric, the particulate state of purpose, spherical etc.
Then, heating destructive distillation forming composition.Destructive distillation can be heated up to 550-750 ℃ under reducing gas atmosphere.In order to obtain more high-performance, more high-intensity carbide or gac, can be by the destructive distillation in two stages, for example, be preferably under the oxidizing gas atmosphere and heat up up to 200-400 ℃, and under reducing gas atmosphere, heat up up to 550-750 ℃ with 5-30 ℃/minute with 5-30 ℃/minute.
Carbide forms the shaping gac by activation in addition, and be adapted at desulfurization, denitrogenation, the off gas treatment that contains muriatic gas such as two _ English etc. with in use, and the 4th invention of the present invention is the manufacture method of the shaping gac of the above-mentioned carbide of activation.Activation can be adopted under the oxidizing gas atmosphere of water vapour, carbonic acid gas, air, propane combustion exhaust, these mixed gass etc. and carry out gas activation or at zinc chloride, phosphoric acid, carry out chemical activation under the existence of the chemical reagent of calcium chloride, potassium sulphide etc. about 400-800 ℃ under 400-1100 ℃.
In order to obtain more high performance shaping gac, use preferably as activated gas that to contain carbonic acid gas be gas more than the 10 volume %.As activating apparatus, can use rotary kiln, mobile stove, Hao Shi stove, sleeve burner etc.The 5th invention of the present invention is carbide or the pressed active carbon of making by above manufacture method.Carbide or pressed active carbon can be as required through process productizations such as overpickling or washing, drying, screenings.
Desulfurization, denitrogenation, contain muriatic gas such as two _ English etc. off gas treatment with in when using pressed active carbon of the present invention, can preferably in coal, suitably contain alkali metal component and alkaline-earth metal composition.In addition, because if the amount of the ash component amount in the shaping gac, magnesium metallic compound, calcium cpd and iron cpd in the ash component very little, then the performance of off gas treatment will descend, if the ash component amount is too many, then just there is downward trend in the intensity of gac, so with especially preferably using, contain the ash component of specified quantitative, in ash component, contain the shaping gac of magnesium compound, calcium cpd and the iron cpd of specified quantitative as desulfurization, denitrogenation.
The 6th invention of the present invention is that the ash component amount is that 5 weight % are above and less than 15 weight %, and the magnesium compound in the ash component, calcium cpd and iron cpd are respectively off gas treatment shaping gac more than the 2 weight %, more than the 8 weight % and more than the 20 weight % with respect to the ash component total amount.The amount of the magnesium compound in ash component amount and the ash component, calcium cpd and iron cpd can be adjusted by the raw material of selecting coal etc.For example, when using coal, can measure the ash component in the coal and the amount of the magnesium compound in the ash component, calcium cpd and iron cpd, and can adjust in the desirable amount as raw material.Below, more specifically describe the present invention by embodiment, but the present invention is not limited to these.
In embodiments of the invention and comparative example, measure rerum natura by the following method.
(1) cinder ordinal number: according to JIS M 88016 crucible swell test methods, in the crucible of regulation, add sample, under defined terms, heat, the residue that generates and nominal contour are compared represent.
(2) fixed carbon and ash component: measure according to JIS M 8812 coal classes and coke class-technical analysis method.
(3) tamped density: in the graduated cylinder of 2000ml, fill sample 1000ml, and gravimetry.
(4) register (ロ ガ) intensity: (add the 30g sample among the 225mm Φ * 70mm), measure and screen residual amount with No. 3.5 after the 50rpm1000 back rotation to register (ロ ガ) tester.
(5) desulfurization performance: in the reactor of filling sample, make mixed gas (SO
2: 1000ppm, O
2: 2 volume %, H
2O:10 volume %, N
2: circulation nubbin), at 165 ℃ of SO by reactor inlet and outlet during through 4 hours
2Concentration ratio calculates.
(6) nitrogen removal performance: in the reactor of filling sample, make mixed gas (NO:300ppm, NH
3: 300ppm, O
2: 2 volume %, H
2O:10 volume %, N
2: circulation nubbin) is calculated by the NO concentration ratio of reactor inlet and outlet during through 20 hours at 165 ℃.
(7) specific surface area: be the BET specific surface area of obtaining by the adsorptive capacity of nitrogen.
(8) ash component of gac: according to the remaining composition measurement of JIS K 1474 activated-carbon test methods 5.9 calcinations.
(9) composition of the metallic compound in the ash component: the fluorescent x-ray analysis device RIX 3001 that makes with Liue electrical machinery Industrial Co., Ltd measures.
In addition; in embodiment and comparative example; if under the situation of no special record; in raw material 100 weight parts of coal, semi-anthracitic coal, hard coal etc., add coal tar 20 weight parts, coal-tar pitch 20 weight part mixings respectively; the ring-like nodulizer of using the manufacturing of field ironworker Co., Ltd. is configured as the cylindric of 10mm diameter with the blended material; after 650 ℃ of following destructive distillation of top temperature, activate under 850 ℃ in the mixed gas of 60 volume % nitrogen, 20 volume % water vapour and 20 volume % carbonic acid gas that to reach specific surface area be 380-400m
2/ g.The standard of the coal raw material that uses in embodiment and comparative example is shown in table 1.
Table 1
| Fixed carbon (weight %) | Ash component (weight %) | The cinder ordinal number | |
| Too western coal | 70～95 | 3～10 | 0 |
| Lvliang City's coal | 70～85 | 3～10 | 2.0 |
| Too western coal (deliming product) | 75～95 | Less than 3 | 0 |
| The Lingwu coal | 60～85 | 3～25 | 0 |
| Lingwu coal (deliming product) | 65～90 | Less than 3 | 0 |
| The foundation for a great undertaking coal | 70～85 | 10～15 | 0 |
Embodiment 1
Use the too western coal of Chinese Ningxia area production as feed coal, and carry out moulding and pyrogenous each operation.The results are shown in table 2.
Embodiment 2
Use the mixture of forming by too western coal 80 weight % that in embodiment 1, use and the regional Lingwu coal 20 weight % that produce in Chinese Ningxia as feed coal, and form and destructive distillation.The results are shown in table 2.
Embodiment 3
Use the mixture of forming by too western coal 60 weight % that in embodiment 1, use and the Lingwu coal 40 weight % that in embodiment 2, use as feed coal, and form and destructive distillation.The results are shown in table 2.
Embodiment 4～6 and embodiment 7～8
Carbide so that aforementioned condition activation embodiment 1-3 obtains obtains shaping gac (embodiment 4-6 separately).In addition, the carbide (embodiment 7) that in the mixed gas of nitrogen 50 volume %, carbonic acid gas 50 volume %, obtains by embodiment 1 850 ℃ of activation, carbide for embodiment 1 obtains improves degree of activation, makes in the mixed gas to be about 1000m 850 ℃ of following specific surface areas
2/ g (embodiment 8).The composition of the metallic compound in ash component and the ash component is shown in table 3, and tamped density, specific surface area, register (ロ ガ) intensity, desulfurization performance, nitrogen removal performance are shown in table 4.
Comparative example 1
Use the mixture of forming by too western coal 20 weight % that in embodiment 1, use and the Lingwu coal 80 weight % that in embodiment 2, use as feed coal, and form and each operation of destructive distillation.The results are shown in table 2.
Comparative example 2
Use the too western coal (deliming product) of Chinese Ningxia area production as feed coal, and form and destructive distillation.The results are shown in table 2.
Comparative example 3
Use the mixture of forming by too western coal (deliming product) the 80 weight % of comparative example 2 and the Lingwu coal 20 weight % that in embodiment 2, use as feed coal, and form and each operation of destructive distillation.The results are shown in table 2.
Comparative example 4
Feed coal uses that Chinese Shanxi area produces has close-burning Lvliang City coal, when forming with destructive distillation, the violent expansion is taken place when destructive distillation.
Comparative example 5
Use the mixture of forming by Lvliang City's coal 20 weight % that produce in the too western coal 80 weight % and the Chinese Shanxi area of embodiment 1 use as feed coal, and form and destructive distillation.The results are shown in table 2.
Comparative example 6
Use the mixture of forming by too western coal 80 weight % that use at embodiment 1 and regional Lingwu coal (deliming product) the 20 weight % that produce in Chinese Ningxia as feed coal, and form and destructive distillation.The results are shown in table 2.
Comparative example 7
Use the foundation for a great undertaking coal of Vietnam's product as feed coal, and form and destructive distillation.The results are shown in table 2.
Comparative example 8-10 and comparative example 11-12
The carbide of activation comparative example 1-3 and comparative example 5-6 obtains shaping gac (comparative example 8-10 and comparative example 11-12 separately).The composition of the metallic compound in ash component and the ash component is shown in table 3, and tamped density, specific surface area, register (ロ ガ) intensity, desulfurization performance, nitrogen removal performance are shown in table 4.
Comparative example 13
The carbide of activation comparative example 7 obtains the shaping gac.The composition of the metallic compound in ash component and the ash component is shown in table 3, and tamped density, specific surface area, register (ロ ガ) intensity, desulfurization performance, nitrogen removal performance are shown in table 4.
Table 2
| Carbonization | Tamped density (g/ml) | ロ ガ intensity (%) | |
| Embodiment 1 | Good | 0.725 | 98.2 |
| Embodiment 2 | Good | 0.710 | 97.5 |
| Embodiment 3 | Good | 0.674 | 96.2 |
| Comparative example 1 | Bad a little | 0.623 | 87.0 |
| Comparative example 2 | Good | 0.712 | 97.0 |
| Comparative example 3 | Good | 0.686 | 95.8 |
| Comparative example 4 | Bad | - | - |
| Comparative example 5 | Bad a little | 0.715 | 96.2 |
| Comparative example 6 | Good | 0.701 | 97.3 |
| Comparative example 7 | Good | 0.705 | 96.3 |
Table 3
| Ash component (%) | Metallic compound in the ash component is formed | ||||
| Mg(％) | Ca(％) | Fe(％) | Other (%) | ||
| Embodiment 4 | 5.3 | 2.0 | 8.7 | 25.0 | 64.3 |
| Embodiment 5 | 7.8 | 4.0 | 15.4 | 22.7 | 57.9 |
| Embodiment 6 | 10.3 | 5.1 | 18.9 | 21.6 | 54.4 |
| Embodiment 7 | 5.3 | 2.1 | 8.6 | 25.1 | 64.2 |
| Embodiment 8 | 10.0 | 2.0 | 8.8 | 25.1 | 64.1 |
| Comparative example 8 | 15.3 | 6.2 | 22.5 | 20.3 | 51.0 |
| Comparative example 9 | 0.9 | 0.6 | 2.6 | 8.5 | 88.3 |
| Comparative example 10 | 4.3 | 5.5 | 20.0 | 18.1 | 56.4 |
| Comparative example 11 | 5.3 | 1.8 | 7.8 | 23.0 | 67.4 |
| Comparative example 12 | 4.5 | 2.0 | 8.7 | 24.1 | 65.2 |
| Comparative example 13 | 9.8 | 2.2 | 3.4 | 28.0 | 66.4 |
Table 4
| Tamped density (g/ml) | Specific surface area (m 2/g) | Desulfurization performance (%) | Nitrogen removal performance (%) | ロ ガ intensity (%) | |
| Embodiment 4 | 0.728 | 380 | 90.1 | 43.0 | 98.2 |
| Embodiment 5 | 0.702 | 400 | 94.7 | 45.4 | 97.3 |
| Embodiment 6 | 0.663 | 390 | 97.1 | 46.1 | 95.4 |
| Embodiment 7 | 0.720 | 380 | 97.8 | 43.4 | 98.7 |
| Embodiment 8 | 0.512 | 1020 | 99.8 | 50.2 | 92.0 |
| Comparative example 8 | 0.589 | 400 | 98.5 | 47.2 | 85.3 |
| Comparative example 9 | 0.730 | 400 | 72.0 | 33.8 | 96.8 |
| Comparative example 10 | 0.695 | 390 | 81.1 | 36.1 | 95.4 |
| Comparative example 11 | 0.709 | 380 | 65.7 | 28.9 | 96.0 |
| Comparative example 12 | 0.699 | 400 | 84.6 | 37.1 | 96.8 |
| Comparative example 13 | 0.695 | 400 | 85.4 | 37.8 | 95.8 |
By the result of table 2 as can be seen, as feed coal, be that destructive distillation is poor, expands during destructive distillation in the carbide of the comparative example 4 of Lvliang City's coal of 2.0 and the comparative example 5 that has mixed Lvliang City's coal in too western coal using the cinder ordinal number.It is violent to expand in comparative example 4 especially, can not destructive distillation.In addition, Duo mix the carbide of comparative example 1 of the mixture of the too western coal 20 weight % of use of semi-anthracitic coal and Lingwu coal 80 weight % than regulation as feed coal, physical strength decline, shape maintains difficulty during destructive distillation.The register of embodiment 3 (ロ ガ) intensity is compared low slightly with comparative example 2, comparative example 6 and comparative example 7, still, as described later, because embodiment 3 demonstrates balanced good absorption property and intensity by activation, so industrial very useful.
By the result of table 3 and table 4 as can be seen, ash component amount in the gac is more than the 5 weight % and less than 15 weight %, and the magnesium compound in the ash component, calcium cpd and iron cpd are respectively, and 2 weight % are above, demonstrate high desulfurization performance, nitrogen removal performance more than the 8 weight % and among the embodiment 4,5,6,7 and 8 more than the 20 weight %.In contrast, ash component is low, under any situation of the comparative example 13 that comparative example 12 that comparative example 11, the ash component that comparative example 10, magnesium compound and the calcium cpd that any few comparative example 9 of magnesium compound, calcium cpd and iron cpd, ash component and iron cpd are few is few is few and calcium cpd are few, desulfurization performance, nitrogen removal performance are all not enough.In addition, be comparative example 8 more than the 15 weight % for the ash component amount, though desulfurization performance, nitrogen removal performance are good, because the ash component amount is too much, so intensity is low.
When using the shaping gac in desulfurization and denitrogenation purposes, from industrial point, desulfurization performance is more than 90%, and nitrogen removal performance is more than 40%, and register (ロ ガ) intensity is to be ideal more than 95%.By the result of table 4 as can be seen, be the embodiment 5 of raw material and 6 pressed active carbon for independent embodiment 4, the difference ether west coal 80 weight % of too western coal and the mixture of Lingwu coal 20 weight % and the mixture of too western coal 60 weight % and Lingwu coal 40 weight % of using, still also can keep high strength after the activation, obtain high desulfurization performance, and, in the shaping gac with the mixed gas activatory embodiment 7 of nitrogen and carbonic acid gas, intensity, desulfurization performance are all very good.In addition, in the shaping gac that the degree of activation of the carbide that makes embodiment 1 further improves, intensity is not too low, can obtain high desulfurization performance, and is useful to removing two _ English etc. especially.
On the other hand, using ash component be the gac of comparative example 11 of the mixing coal of the comparative example 9 less than the too western coal (deliming product) of 3 weight %, the comparative example 10 of mixing coal that uses too western coal (deliming product) and Lingwu coal and the too western coal of use and Lvliang City's coal, and its desulfurization performance is insufficient.In addition, mix the comparative example 8 of the mixture of the too western coal 20 weight % of use of semi-anthracitic coal and Lingwu coal 80 weight % as feed coal than regulation, intensity significantly descends with Duoing.The intensity of any of above comparative example and performance more unsatisfactory.
By the present invention, provide with fixing shape carbon component more than the 70 weight %, and ash component is the above noncaking coals of being discontented with 10 weight % of 3 weight %, the fixed carbon composition is that 70 weight % above noncaking coal and fixed carbon composition are more than the 50 weight %, and ash component is the mixture of the following non-adhesive semi-anthracitic coal of the above 25 weight % of 3 weight %, perhaps hard coal and fixed carbon composition are more than the 50 weight %, and ash component is that the mixture of the following non-adhesive semi-anthracitic coal of the above 25 weight % of 3 weight % is a raw material, at least through add the molding procedure that binding agent forms in these raw materials, the manufacture method of the carbide of the destructive distillation operation manufacturing of the resulting forming composition of destructive distillation, and the manufacture method that activates the shaping gac of these carbide.If according to the present invention, do not use the such caking coal of bituminous coal, contain ratio by adjusting ash component, can make high strength that helps industry and the carbide that is fit at aspects such as thermal insulation material, sorbing material, fire-retardant material, antistatic material, heat-stable material, chemical resistant materials, in addition, by activating this carbide, the balanced outstanding pressed active carbon of absorption property that can make intensity at an easy rate and contain waste gas such as oxysulfide, oxynitride, chlorine compound.
Claims (8)
1. the manufacture method of a carbide, it is characterized in that, this method is in the noncaking coal more than the fixed carbon composition is 70 weight %, with the weight ratio Mixed Stationary carbon component that is 50: 50 with respect to this coal to the maximum is that the above and ash component of 50 weight % is the following semi-anthracitic coals of the above 25 weight % of 3 weight %, mixture with such gained is a raw material, at least the manufacture method of the destructive distillation operation of the process resulting shaping thing of forming process, destructive distillation that the adding binding agent forms in this mixture.
2. the manufacture method of the carbide of claim 1 record is characterized in that, the ash component of this noncaking coal is to be discontented with 10 weight % more than the 3 weight %.
3. the manufacture method of the pressed active carbon of a carbide that activates claim 1 record.
4. the manufacture method of the pressed active carbon of a carbide that activates claim 2 record.
5. the carbide that obtains by manufacture method according to claim 1 record.
6. the carbide that obtains by manufacture method according to claim 2 record.
7. the pressed active carbon that obtains by manufacture method according to claim 3 record.
8. the pressed active carbon that obtains by manufacture method according to claim 4 record.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP225325/2001 | 2001-07-26 | ||
| JP2001225325 | 2001-07-26 | ||
| JP225325/01 | 2001-07-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1406863A CN1406863A (en) | 2003-04-02 |
| CN1326769C true CN1326769C (en) | 2007-07-18 |
Family
ID=19058334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021429901A Expired - Fee Related CN1326769C (en) | 2001-07-26 | 2002-07-26 | Manufacture of carbide and formed activated charcoal and carbide and formed activated charcoal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1326769C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006213544A (en) * | 2005-02-02 | 2006-08-17 | Kuraray Chem Corp | Granular active carbon and its manufacturing method |
| TWI505987B (en) * | 2010-03-31 | 2015-11-01 | Kuraray Chemical Kk | Activated carbon and its use |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5245598A (en) * | 1975-10-09 | 1977-04-11 | Kagaku Gijutsu Shinkoukai | Producing method of active carbon from coal |
| SU737387A1 (en) * | 1978-01-06 | 1980-05-30 | Государственный Научно-Исследовательский И Проектно-Конструкторский Институт Электродной Промышленности | Charge for producing refractory articles |
| JPS57123809A (en) * | 1981-01-27 | 1982-08-02 | Mitsubishi Chem Ind Ltd | Production of carbon material for desulfurization |
-
2002
- 2002-07-26 CN CNB021429901A patent/CN1326769C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5245598A (en) * | 1975-10-09 | 1977-04-11 | Kagaku Gijutsu Shinkoukai | Producing method of active carbon from coal |
| SU737387A1 (en) * | 1978-01-06 | 1980-05-30 | Государственный Научно-Исследовательский И Проектно-Конструкторский Институт Электродной Промышленности | Charge for producing refractory articles |
| JPS57123809A (en) * | 1981-01-27 | 1982-08-02 | Mitsubishi Chem Ind Ltd | Production of carbon material for desulfurization |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1406863A (en) | 2003-04-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2648803B2 (en) | Method for treating fly ash and sewage sludge, method for producing lightweight aggregate using fly ash and sewage sludge, and lightweight aggregate | |
| CN1326769C (en) | Manufacture of carbide and formed activated charcoal and carbide and formed activated charcoal | |
| EP0070321B1 (en) | Process for preparing carbonaceous material for use in desulfurization | |
| CN102471822B (en) | Unfired carbon-containing agglomerate and production method therefor | |
| KR890003015B1 (en) | Process for the preparation of pellets | |
| JP6414903B2 (en) | Production method of carbon interior ore | |
| CA2441524C (en) | Method for curing self-reducing agglomerates | |
| JP4708409B2 (en) | Molded activated carbon for waste gas treatment and method for producing the same | |
| BRPI1007900B1 (en) | CARBONACE MATERIAL FOR SINTERING IRON ORE | |
| JP2022033594A (en) | Method for manufacturing sintered ore | |
| KR101676629B1 (en) | Coal briquettes and method for manufacturing the same | |
| JP2003147369A (en) | Method for forming carbonized product and formed active carbon and carbonized product and formed active carbon produced thereby | |
| US2479904A (en) | Inorganic bond for chlorination charge | |
| US486100A (en) | Sylvania | |
| JP2011032532A (en) | Method for producing agglomerate for blast furnace raw material | |
| JP7143714B2 (en) | Method for producing carbon material for sintering, method for selecting raw material for carbon material for sintering, and method for producing sintered ore | |
| JPS62218524A (en) | Recovery of iron fron iron ore, steel manufacturing byproduct, waste and other iron oxide-containing substance | |
| JP7469622B2 (en) | Manufacturing method of carbonaceous material for sintering and manufacturing method of sintered ore | |
| Mochizuki et al. | Strength and Gasification Reactivity of Coke Prepared by Blending a Ca/C Composite and Coal | |
| CN100422078C (en) | Method for producing active carbon and active carbon | |
| WO2024070135A1 (en) | Iron ore pellet production method | |
| BR112019027437A2 (en) | ore containing carbon material and production method | |
| KR850000851B1 (en) | Process for producing iron pellets | |
| BR112016013372B1 (en) | METHOD FOR THE USE OF POWERS GENERATED IN A FERRONÍQUEL PROCESS AND SINTERIZED PELLETS PRODUCED BY THE METHOD | |
| Wang et al. | Derived solid fuels |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170508 Address after: Okayama City, Kurashiki, Japan, 1621 times the wine Jin Patentee after: KURARAY Co.,Ltd. Address before: Okayama County, Japan Patentee before: KURARAY CHEMICAL Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070718 Termination date: 20210726 |