WO2006126412A1 - 連続操作式活性炭製造装置および方法 - Google Patents
連続操作式活性炭製造装置および方法 Download PDFInfo
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- WO2006126412A1 WO2006126412A1 PCT/JP2006/309659 JP2006309659W WO2006126412A1 WO 2006126412 A1 WO2006126412 A1 WO 2006126412A1 JP 2006309659 W JP2006309659 W JP 2006309659W WO 2006126412 A1 WO2006126412 A1 WO 2006126412A1
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- Prior art keywords
- partition plate
- activated carbon
- gas
- porous partition
- horizontal porous
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/39—Apparatus for the preparation thereof
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/312—Preparation
- C01B32/336—Preparation characterised by gaseous activating agents
Definitions
- the present invention relates to improvements in an apparatus and a method for continuously producing activated carbon by a water vapor activation method using a vertical multistage fluidized bed apparatus partitioned by a plurality of horizontal porous partition plates.
- the steam activation reaction for the production of activated carbon is usually performed by causing steam to act on the raw coal at a high temperature of 750 to 950 ° C and producing fine pores in the raw coal by an aqueous gas reaction to make activated carbon.
- rotary kilns, moving beds, fluidized beds, etc. have been used as activated carbon production equipment.
- the fluidized bed has a high heat exchange rate and the entire particle temperature is uniform, so the reaction in the entire system progresses uniformly, especially when batch operation is performed, and a highly activated activated carbon that requires a long reaction time. Even if the reaction rate is uniform, the reaction rate is uniform and the reaction is not sufficient or too advanced, so if the same reaction rate does not waste carbon, the activated carbon can be obtained in high yield. It is.
- the reaction is started by heating the furnace after the raw material is charged so that the reaction does not proceed during raw material charging or activated carbon discharge.
- the operation is such that the furnace is cooled and the activated carbon is discharged.
- the temperature of the apparatus is raised and lowered for each batch, and there are many losses in terms of time and energy.
- thermal stress distortion due to this temperature change occurs, and problems such as deterioration of furnace structural materials are likely to occur.
- JP-A-49-91098 discloses a method for continuously producing activated carbon using a vertical multistage fluidized bed apparatus partitioned by a plurality of porous partition plates. That is, according to Japanese Patent Laid-Open No. 49-91098, the pore diameter of the raw coal is set in the continuous operation fluidized bed furnace by utilizing the phenomenon that the particle size of the raw coal decreases as the activation reaction proceeds.
- a main object of the present invention is to provide an apparatus and a method capable of continuously producing activated carbon having a high activation degree with a high yield.
- the continuous operation type activated carbon production apparatus of the present invention comprises raw coal and fluidized gas containing water vapor from the lower part of a vertical multistage fluidized bed apparatus cut by a plurality of horizontal porous partition plates.
- the aperture ratio of the plate is set to be larger than the aperture ratio of the lower horizontal porous partition plate.
- the method for producing activated carbon of the present invention includes a plurality of horizontal porous partition plates in which the opening ratio of the horizontal porous partition plate provided in the upper portion is set larger than the opening ratio of the horizontal porous partition plate provided in the lower portion.
- the raw coal and the fluidized water vapor are contained so that the gas superficial velocity in the fluidized bed is 2 to 4 times the minimum fluidization rate of the raw coal.
- the present inventors can obtain a desired yield by applying the method disclosed in JP-A-49-91098 to the production of activated carbon having a high degree of activation.
- the reason for this is that as the activated carbon activation reaction progresses, the particle size of the carbonaceous material decreases, the specific gravity decreases, and therefore the terminal speed decreases. As the water gas reaction proceeds, it increases by several tens of percent.
- the linear velocity at the opening of the uppermost horizontal porous partition plate will be 1.75 mZs on the basis of the supply gas.
- the speed is 1.15 times 2. Om / s. Therefore, at the upper part of the device, the final velocity of activated carbon exceeds 1.2 to 2. OmZs, and the activated carbon tends to be mixed, and the activated carbon discharged from the upper part of the device is easily mixed with such activated carbon.
- the gas velocity at the top horizontal porous partition opening is reduced to 1.2 mZs, which is the final velocity of activated carbon, the superficial velocity based on the supply gas flow rate at the bottom of the bed will be 0.21 mZs.
- the upper horizontal porous partition plate is considered in consideration of a decrease in the terminal velocity of the carbonaceous particles and an increase in the amount of fluidized gas as the activation reaction proceeds.
- the idea is that it is effective to increase the aperture ratio and reduce the velocity of the fluidized gas passing through the aperture compared to the lower horizontal porous partition plate. (See Examples below) and the present invention has been achieved.
- FIG. 1 is a schematic layout view (including a schematic longitudinal section of a vertical apparatus main body 2) of an embodiment of a continuously operated activated carbon production apparatus of the present invention. Coking coal is supplied from a raw material supply machine 1 equipped with a stirrer la to a vicinity of the bottom of the apparatus main body 2 through a raw material supply pipe 3 provided almost vertically in the activated carbon production apparatus main body 2.
- a plurality of horizontal porous partition plates (four in the example of FIG. 1) are arranged in the vertical apparatus main body 2 at appropriate intervals, and fluidization including water vapor is further provided near the bottom on the lower side.
- a gas disperser 5 is placed.
- the steam-containing fluidized gas introduced in the activation reaction and fluidization of the raw coal is heated to a predetermined temperature that is detected and controlled by the temperature indicator 6 by the fluidized gas heater 6 and the controller 7a. As a result, they are distributedly supplied into the apparatus body 2.
- the raw coal introduced from the raw material supply pipe 3 by this heated fluidizing gas forms a vertical continuous fluidized bed.
- the furnace is directly heated from the side wall heater 8 which is operated while being controlled at the temperature controlled by the temperature indicator and the control meters 7b and 7c.
- activation of the raw coal by water gas reaction proceeds at a high temperature of 750 ° C or higher (detected by thermometer 7d).
- the activated carbon generated after the reaction in the fluidized bed is exhausted from the top of the fluidized bed to the outside of the device main body through the activated carbon discharge pipe 9 arranged almost vertically in the device main body 2. After being cooled by the cooler 10, it is recovered by the activated carbon recovery device 11.
- the fluidized bed in the apparatus main body 2 is partitioned by four horizontal porous partition plates and divided into five parts, and the opening ratio of the fluidized bed in the apparatus main body 2 is low.
- Raw material going up The downstream side of the charcoal and the fluidized gas is set to be larger than the upstream side (the upper side is the downstream side as the position in the apparatus main body 2).
- the number of horizontal porous partition plates is plural, that is, two or more, but in the case of three or more, it is preferable that the number of horizontal porous partition plates is set to increase stepwise as the process proceeds downstream. For example, in the example of Fig. 1 using four horizontal porous partition plates, the force gradually increases from 9%, 12%, 15%, and 18% from the upstream side to the downstream side. Even if the number of steps of increasing the aperture ratio is reduced as compared with the number of horizontal porous partition plates such as%, 10%, 16%, and 16%, the predetermined effect of the present invention can be obtained to some extent.
- fluidized gas disperser 5 Various types of fluidized gas disperser 5 are known, such as a flat plate type, a cap type, a pipe type, and a cone type (for example, page 481 of "Science Engineering Handbook (6th revised edition)"). Any type of disperser may be used as long as a stable fluidized bed is formed, but it can withstand long-term use at high temperatures and prevent equipment clogging at gas outlets. Especially good is the pipe-type gas disperser.
- the raw material supply pipe 3 can also be directly supplied to the lower part of the fluidized bed with a screw or the like through the side wall of the apparatus body 2.
- the tip position of the supply pipe 3 (introduction position into the device main body 2) is usually provided on the disperser 5 as shown in Fig. 1, but operation is possible even if it is slightly lower.
- the activated carbon discharge pipe 9 may be directly discharged out of the apparatus through the side wall of the fluidized bed upper force apparatus body 2.
- Coking coal is obtained by heat-treating coal-based carbides such as coal 'lignite' lignite 'and peat, plant-based carbides such as charcoal' coconut shell charcoal, and thermosetting coffins such as phenolic resin.
- Carbon precursors such as carbonized materials, thermoplastic resins such as polystyrene resin, and petroleum pitches that have been infusibilized by adding an acid-infusible compound or a compound having a crosslinking action, such as di-benzene, are used.
- As a pretreatment it can be obtained by preliminary carbonization at 500 to 800 ° C in an inert atmosphere such as nitrogen. By performing such pretreatment, it is possible to obtain raw coal that enables stable operation without generating raw coal tar during the activation reaction.
- carbides derived from thermosetting rosin and thermoplastic cinnamon oil pitch that have been infusibilized do not contain ash, and are high-purity carbonaceous raw coals. It is particularly preferable in that the activated carbon does not become brittle even if a highly activated activated carbon whose end velocity is 15 to 20 times the minimum fluidization rate of raw coal is produced. Yes.
- the activation temperature (detected by the thermometer 7d) is generally 750 to 950 ° C, preferably 800 to 900 ° C. If it is less than 750 ° C, the activation reaction rate is extremely slow, which is not preferable. In addition, when the temperature exceeds 950 ° C, the reaction rate becomes too high, and the diffusion of water vapor gas into the coking coal does not follow the reaction rate, resulting in a gradient of the water vapor gas concentration in the coking coal, resulting in uniform activation. It is not preferable because it cannot be done. Also, from the viewpoint of maintaining a good flow state, there is an appropriate range for the flow rate of the water vapor gas supplied as the fluidizing gas, and this also limits the reaction rate. Operation is uneconomical.
- the fluidizing gas generally used is a power gas containing 30 to 30% LOO volume% of the activation gas component, and the remainder having a composition of nitrogen or other inert gas.
- oxygen and other reactive gases can be included as needed up to 15% by volume.
- a spherical activated carbon with a bulk density of 500 kgZm 3 was obtained, and a continuous device was designed based on this.
- Coking coal was submerged in water, and the particle density (apparent density) of the coking coal was determined to be 1041 kg / m 3 .
- the fluidized gas supply amount is obtained from the physical properties of the raw coal and the target activated carbon.
- the minimum fluidization velocity U of the particles is given by the following equation (1). (Reference: Handbook of Chemical Engineering ( (Revised Sixth Edition) ”, p. 463, (1999))
- the uppermost stage is more than the lowermost stage at least corresponding to the increase in the superficial velocity of the fluidized gas accompanying the progress of the aqueous gas reaction. It is preferable to set a large value of 10% or more (the ratio of the aperture ratio between the top and bottom stages is 1.1 times or more). More preferably, the opening ratio of the horizontal porous partition plate is determined in accordance with the terminal velocity of the particles determined as described above.
- the final velocity U of activated carbon is 1.2 / 0.074 t2 mfl of the minimum fluidization velocity U of coking coal.
- the activation reaction is a reaction represented by C + 2H 0 ⁇ CO + 2H, C + H 0 ⁇ CO + H.
- the distribution ratio varies depending on the reaction conditions, but at least the supplied H 2 O is reactive.
- reaction force is also shown to be 1.5 to 2 times the volume after. Therefore, the flow rate varies depending on the amount of flowing gas, type of coking coal, H 2 O concentration in the flowing gas, and reaction temperature.
- the aperture ratio A [%] of the uppermost horizontal porous partition plate can be expressed by equation (4).
- the final velocity U of activated carbon is 15 to 20 times the minimum fluidization velocity U of coking coal, and t2 mfl
- the opening ratio of the horizontal porous partition plates in the second to fourth stages is also the end rate of the raw coal with the degree of activation (reaction rate) passing through that stage instead of the end speed of the activated carbon product described above. It can be obtained in the same way by using speed or the like. As the lower stage is reached, the reaction rate decreases and the terminal velocity increases, so the aperture ratio decreases sequentially as described for the device in Fig. 1. In other words, in the example in Fig. 1, based on the same calculation, the second stage aperture ratio is 15%, the third stage aperture ratio is 12%, and the fourth stage aperture ratio is 9%. It was.
- the gas velocity force that passes through the opening of each horizontal porous partition plate is set to 0.8 to 1.2 times the terminal velocity of the most activated reaction coal that passes through the opening of each horizontal porous partition plate. It is preferable to determine the aperture ratio, more preferably 0.9 to 1.1 times. If the ratio is less than 8 times, the fluidized gas tends to be insufficient in the opening speed of the fluidized gas compared to the terminal velocity of the carbonaceous particles. This is preferable because the speed at which the aperture passes is excessive, and the rectification / classification effect tends to decrease.
- a more preferable opening ratio of the uppermost partition plate and the lowermost partition plate determined in this way The ratio ranges from 1.1 to 3.0 times.
- the opening diameter of the partition plate 4 is 200 times or less, preferably 100 times or less the median average particle diameter of the raw coal in order to give a uniform classification effect regardless of the location of the partition plate. It is preferable to make a large number of small holes, but it is not preferable because the resistance to the passage of particles increases unless the median average particle diameter of the raw coal is 5 times or more, preferably 10 times or more. In addition, a square arrangement, an equilateral triangle arrangement, a staggered arrangement, and the like are preferable as the opening arrangement. However, if the holes are formed uniformly and the opening ratio per unit area of the partition plate is constant over the entire partition plate. Any aperture arrangement may be used.
- the installation interval in the height direction of the horizontal porous partition plate may be about 20 to 3 OOmm, preferably about 50 to 200mm, but the reaction rate distribution is If you want to make it narrower, install more dividers within the range of the above installation intervals.
- the classification of raw coal and activated carbon by the horizontal porous partition plate takes advantage of this difference, focusing on the fact that the particle size and particle density (apparent density) are reduced by the force that the raw coal is activated. It is done.
- the log ratio log (d) Zlog (5) of the median average particle size (d) and standard deviation ( ⁇ ) based on the particle size distribution measured according to JIS K1474 particle size measurement method is 1 More than 25
- raw coking coal It is preferable to use raw coking coal. 1. 30 or more is more preferable.
- activated carbon having a packed bulk density of 80 to 550 kgZm 3 (or methylene blue decolorizing power of 240 to 320 ml / g) can be produced in a yield of 18 to 33 wt%. .
- the activated carbon production equipment body 2 has an inner diameter of 300mm ⁇ , the height of the activated carbon discharge pipe 9 from the bottom of the equipment is 460mm, and water.
- the number of flat porous partition plates 4 is 100 at intervals of 100 mm in the height direction, and each partition plate is arranged in a 25 mm pitch square array toward the uppermost step and the lower step, all with 12.Omm, 10.9 mm ⁇ , 9. Holes of 8mm ⁇ and 8.5mm ⁇ were opened, respectively, and the aperture ratios were set to 18, 15, 12 and 9%, respectively.
- the inside of the activated carbon production system 2 is detected by a side wall heater 8 with a thermometer 7d.
- the internal temperature is adjusted to 820 ° C, and a mixed fluidized gas consisting of 10% nitrogen and 90% steam is converted into a fluidized gas heater 6 Was heated in the fluidized gas disperser 5 and fed into the fluidized bed at a superficial velocity of 0.19 mZs at 820 ° C.
- Coking coal is obtained by oxidizing infusibilization of petroleum pitch, followed by preliminary carbonization at 550 ° C in nitrogen gas, with a median average particle size (d) of 6
- Standard deviation ( ⁇ ) at 20 m and 130 / zm [both calculated from particle size distribution measured according to JIS K1474 particle size measurement method], packing bulk density 778 kgZm 3 Q [IS K1474 (packing density measurement method... manual filling method ) Measured in accordance with) was used.
- the raw material supply machine 1 passes through the raw material supply pipe 3 and is supplied to the activated carbon production device body 2 and the continuous fluidized bed activation reaction is performed with the fluidized gas supplied, the raw material coal supplied by lOOOgZh in the steady state is obtained.
- Methylene blue (MB) decolorization power (measured according to JWWA K113) is 290 ml, 7 to 7 pieces.
- Example 2 Of the four horizontal porous partition plates used in Example 1, except for the two upper horizontal partition plates having an opening ratio of 18% and 15%, respectively, except for the lower two horizontal porous partition plates.
- activated carbon with a packed bulk density of 530 kgZm3 was placed in the activated carbon collector 11. Obtained.
- the yield based on the raw material was 24% by weight.
- the methylene blue decolorization power was 280 mlZg.
- Example 1 Of the four horizontal porous partition plates used in Example 1, the upper and lower horizontal porous partition plates having an opening ratio of 18% and 9%, respectively, are removed, and the middle two plates having 15% and 12% are removed.
- the horizontal perforated partition plate of each is the top and upper force respectively.
- the feed rate of raw coal in steady state lOOOgZh was changed to 2000 gZh.
- activated carbon having a packed bulk density of 550 kgZm 3 was obtained in the activated carbon collector 11.
- the yield based on the raw material was 30% by weight.
- the methylene blue decolorizing power was 240 mlZg.
- Example 2 Four horizontal perforated partition plates provided at intervals of 100 mm in the height direction, except that the deviation is 25 mm pitch square array and 12.6 mm ⁇ holes are drilled to make the aperture ratio 20%.
- the activated carbon collector 11 was filled with a packed bulk density of 530 kgZ m. Three activated carbons were obtained. The yield based on the raw material was 16% by weight. Methylene blue decolorization power was 240mlZg.
- a batch operation was performed in the same manner as in Reference Example 1 except that the reaction time (and hence the activation reactivity) was reduced, and activated carbon having a packed bulk density of 645 kgZm 3 was obtained in a yield of 52% by weight.
- the methylene blue decolorization power was 21 OmlZg.
- a batch operation was performed in the same manner as in Reference Example 1 except that the reaction time (and hence the activation reactivity) was reduced, and an activated carbon having a packed bulk density of 730 kgZm 3 was obtained in a yield of 67% by weight.
- the methylene blue decolorization power was 70 mlZg.
- FIGS. 2 and 3 show plots of activated charcoal yield-bulk density and activated carbon yield MB (methylene blue) decolorizing power as a data for evaluating process performance in these examples.
- the activation reaction can be regarded as a primary reaction when the supply water vapor concentration is constant, and the relationship between the yield y of activated carbon with respect to the raw coal and the activation reaction time t is expressed by the equation (6). Know It has been. Where K is the apparent reaction rate constant. (Reference: Kitagawa: Nikka Journal, ⁇ . 6, p. 1140, (1972))
- activated carbon having a desired packing bulk density can be obtained in a continuous operation with a high yield very close to that of a batch operation.
- activated carbon can be obtained at a higher yield than the comparative example, although the number of partition plates installed is small compared to comparative examples 1 and 2.
- the opening ratio of the plurality of horizontal porous partition plates provided is increased in accordance with the upper stage (downstream) and matched with the terminal velocity of the reaction coal. Can be understood as the effect of narrowing the reaction time distribution in the activated carbon product.
- Fig. 3 shows the relationship between the activated carbon yield and the methylene blue decolorizing power. Michile As with the relationship between the packing bulk density and the yield, when obtaining activated carbon having the same methylene blue decoloring power, the smaller the reaction rate distribution, the higher the yield. The maximum is methylene blue decolorization power obtained by Notch type operation. As shown in Fig. 3, Example 1 is equivalent to Reference Examples 1 to 4 using Notch-type operation, exhibits high methylene blue decolorization power, and continuously operates activated charcoal with high yield and high methylene blue decolorization power. It can be said that it can be obtained with.
- an apparatus and a method capable of continuously producing even activated carbon having a high degree of activation with a yield that is comparable to batch operation.
- FIG. 1 is a schematic layout view of an embodiment of a continuously operated activated carbon production apparatus of the present invention.
- FIG. 2 is a graph showing the relationship between activated carbon yield and bulk density in Examples, Comparative Examples, and Reference Examples.
- FIG. 3 is a graph showing the relationship between activated carbon yield MB (methylene blue) decolorizing power in Examples, Comparative Examples, and Reference Examples.
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Abstract
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Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/921,003 US7771668B2 (en) | 2005-05-25 | 2006-05-15 | Continuous operation type active charcoal producing apparatus and process |
EP06732590A EP1897852A4 (en) | 2005-05-25 | 2006-05-15 | ACTIVE CARBON PRODUCTION DEVICE AND METHOD OF CONTINUOUS TYPE |
JP2007517777A JP5274835B2 (ja) | 2005-05-25 | 2006-05-15 | 連続操作式活性炭製造装置および方法 |
CN2006800184812A CN101184692B (zh) | 2005-05-25 | 2006-05-15 | 连续操作式活性炭制造装置和方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2005152356 | 2005-05-25 | ||
JP2005-152356 | 2005-05-25 |
Publications (1)
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WO2006126412A1 true WO2006126412A1 (ja) | 2006-11-30 |
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PCT/JP2006/309659 WO2006126412A1 (ja) | 2005-05-25 | 2006-05-15 | 連続操作式活性炭製造装置および方法 |
Country Status (6)
Country | Link |
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US (1) | US7771668B2 (ja) |
EP (1) | EP1897852A4 (ja) |
JP (1) | JP5274835B2 (ja) |
KR (1) | KR20080036010A (ja) |
CN (1) | CN101184692B (ja) |
WO (1) | WO2006126412A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101639324B (zh) * | 2009-09-07 | 2012-06-13 | 华西能源工业股份有限公司 | 一种流化床锅炉及其用途 |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
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FR2945965A1 (fr) | 2009-05-27 | 2010-12-03 | Commissariat Energie Atomique | Materiau carbone solide a propriete(s) ajustee(s), piece comprenant le materiau, utilisations du materiau |
FR2946045A1 (fr) | 2009-05-27 | 2010-12-03 | Commissariat Energie Atomique | Procede de fabrication d'un materiau carbone solide a propriete(s) ajustee(s), materiau susceptible d'etre obtenu par le procede, biohuiles additivees en tant que precurseurs |
KR101103594B1 (ko) * | 2009-08-07 | 2012-01-10 | 한국에너지기술연구원 | 가스화 합성가스를 이용하는 다단 유동층 수성가스 반응장치 및 이를 이용한 수소생산방법 |
DE102013011131B4 (de) * | 2013-06-24 | 2015-05-13 | Jamina Grothe | Verfahren und Vorrichtung zur thermischen Reinigung oder Reinigung und Aktivierung von beladenen körnigen Aktivkohlen |
CN103613098B (zh) * | 2013-09-05 | 2015-04-29 | 王振泉 | 一种制备活性炭的专用设备及其方法 |
CN104232124B (zh) * | 2014-09-23 | 2016-04-27 | 济南联星石油化工有限公司 | 一种生物质裂解炭化气化装置 |
US10723627B2 (en) | 2017-11-08 | 2020-07-28 | Tigerstone Technologies Limited | Production of activated carbon |
EP3722259A1 (en) * | 2017-11-08 | 2020-10-14 | Tigerstone Technologies Limited | Production of activated carbon |
KR102319332B1 (ko) | 2020-03-09 | 2021-10-29 | 주식회사 멘도타 | 고품위 활성탄의 제조 장치 및 그 제조 방법 |
EP4253318A1 (en) * | 2022-03-30 | 2023-10-04 | Bgw, S.A. | Equipment to produce activated carbon by physical activation |
US11834338B1 (en) | 2022-05-24 | 2023-12-05 | John W. Black | Continuous carbonaceous matter thermolysis and pressurized char activation with hydrogen production |
Citations (2)
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JPS4991098A (ja) * | 1973-01-05 | 1974-08-30 | ||
JPH01129093A (ja) * | 1987-11-13 | 1989-05-22 | Kureha Chem Ind Co Ltd | ピツチ成形体の賦活方法及び賦活装置 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
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NL8902738A (nl) * | 1989-11-06 | 1991-06-03 | Kema Nv | Werkwijze en inrichting voor het uitvoeren van chemische en/of fysische reacties. |
CN2114124U (zh) * | 1991-11-08 | 1992-08-26 | 中国科学院工程热物理研究所 | 立式多层流化床干燥机 |
CN2471402Y (zh) * | 2000-12-29 | 2002-01-16 | 中国石油化工集团公司 | 流化床催化剂单器再生设备 |
-
2006
- 2006-05-15 KR KR1020077029686A patent/KR20080036010A/ko not_active Application Discontinuation
- 2006-05-15 US US11/921,003 patent/US7771668B2/en not_active Expired - Fee Related
- 2006-05-15 JP JP2007517777A patent/JP5274835B2/ja not_active Expired - Fee Related
- 2006-05-15 WO PCT/JP2006/309659 patent/WO2006126412A1/ja active Application Filing
- 2006-05-15 CN CN2006800184812A patent/CN101184692B/zh not_active Expired - Fee Related
- 2006-05-15 EP EP06732590A patent/EP1897852A4/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4991098A (ja) * | 1973-01-05 | 1974-08-30 | ||
JPH01129093A (ja) * | 1987-11-13 | 1989-05-22 | Kureha Chem Ind Co Ltd | ピツチ成形体の賦活方法及び賦活装置 |
Non-Patent Citations (1)
Title |
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See also references of EP1897852A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101639324B (zh) * | 2009-09-07 | 2012-06-13 | 华西能源工业股份有限公司 | 一种流化床锅炉及其用途 |
Also Published As
Publication number | Publication date |
---|---|
EP1897852A1 (en) | 2008-03-12 |
US7771668B2 (en) | 2010-08-10 |
CN101184692A (zh) | 2008-05-21 |
KR20080036010A (ko) | 2008-04-24 |
JPWO2006126412A1 (ja) | 2008-12-25 |
US20090081114A1 (en) | 2009-03-26 |
CN101184692B (zh) | 2010-09-08 |
EP1897852A4 (en) | 2012-01-18 |
JP5274835B2 (ja) | 2013-08-28 |
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