CN113401899A - Method for preparing desulfurization and denitrification active carbon without coal tar - Google Patents
Method for preparing desulfurization and denitrification active carbon without coal tar Download PDFInfo
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- CN113401899A CN113401899A CN202110768089.6A CN202110768089A CN113401899A CN 113401899 A CN113401899 A CN 113401899A CN 202110768089 A CN202110768089 A CN 202110768089A CN 113401899 A CN113401899 A CN 113401899A
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- desulfurization
- denitrification
- activated carbon
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 78
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 45
- 230000023556 desulfurization Effects 0.000 title claims abstract description 45
- 239000011280 coal tar Substances 0.000 title claims abstract description 21
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000000853 adhesive Substances 0.000 claims abstract description 32
- 230000001070 adhesive effect Effects 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000003245 coal Substances 0.000 claims abstract description 22
- 238000002156 mixing Methods 0.000 claims abstract description 17
- 239000000843 powder Substances 0.000 claims abstract description 14
- 229920005552 sodium lignosulfonate Polymers 0.000 claims abstract description 13
- 229920005551 calcium lignosulfonate Polymers 0.000 claims abstract description 12
- RYAGRZNBULDMBW-UHFFFAOYSA-L calcium;3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Ca+2].COC1=CC=CC(CC(CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O RYAGRZNBULDMBW-UHFFFAOYSA-L 0.000 claims abstract description 12
- 238000002360 preparation method Methods 0.000 claims abstract description 12
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 11
- 239000011734 sodium Substances 0.000 claims abstract description 11
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 11
- 238000000465 moulding Methods 0.000 claims abstract description 10
- 230000003213 activating effect Effects 0.000 claims abstract description 8
- 238000010000 carbonizing Methods 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 238000012216 screening Methods 0.000 claims abstract description 7
- 230000004913 activation Effects 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000003763 carbonization Methods 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims description 2
- 239000012778 molding material Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 231100000252 nontoxic Toxicity 0.000 abstract description 3
- 230000003000 nontoxic effect Effects 0.000 abstract description 3
- 230000009967 tasteless effect Effects 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 239000000383 hazardous chemical Substances 0.000 abstract description 2
- 231100000206 health hazard Toxicity 0.000 abstract description 2
- 239000005416 organic matter Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000011269 tar Substances 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
Images
Classifications
-
- 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
- C01B32/318—Preparation characterised by the starting materials
-
- 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
Abstract
The invention relates to preparation of activated carbon, in particular to a method for preparing desulfurization and denitrification activated carbon without coal tar; the method comprises the following steps: 1) preparation of adhesive solution: mixing sodium/calcium lignosulfonate with water, standing in a water bath, and obtaining an adhesive solution after the sodium/calcium lignosulfonate is completely dissolved; 2) preparing the desulfurization and denitrification active carbon: mixing the adhesive solution obtained in the step 1) with coal powder and water in proportion to form coal paste, molding by a granulator, carbonizing and activating, discharging, cooling and screening to obtain the desulfurization and denitrification active carbon; the adhesive used in the invention is nontoxic and tasteless, and can effectively reduce occupational health hazards to field operators. The adhesive has low price and small dosage, and the adhesive powder is dissolved in water to be prepared into solution for use, thereby effectively reducing the preparation cost of the desulfurization and denitrification activated carbon. In the using process of the adhesive, no organic matter volatilizes, and the problem of environmental pollution in the production process of the desulfurization and denitrification active carbon is solved.
Description
Technical Field
The invention relates to preparation of activated carbon, and particularly relates to a method for preparing desulfurization and denitrification activated carbon without coal tar.
Background
In recent years, due to the development of the national environment-friendly situation, the dry desulfurization and denitrification technology is widely applied to sintering, waste incineration power generation and coking tail gas desulfurization and denitrification purification treatment in the steel industry, the annual demand of domestic desulfurization and denitrification activated carbon markets is about 50 million tons, and the capacity is about 100 million tons. The desulfurization and denitrification active carbon is prepared by mixing coal powder, tar and water according to a certain proportion, granulating or extruding for molding, and carbonizing and activating. Where the coal tar acts as a binder. There are major problems:
a. coal tar contains a large amount of volatile toxic and harmful substances, such as carcinogenic substances like benzene, anthracene oil, naphthalene and the like, and volatilizes in the using process, so that the physical and mental health of operators and the environment of an operation site are seriously affected, and if an effective VOC gas treatment device is additionally arranged, the manufacturing cost of the activated carbon is increased.
b. Due to the development of coal tar downstream industry and the dependence of the sharp increase of the yield of coal-based activated carbon on coal tar, the price of the coal tar is continuously increased, so that the manufacturing cost of the desulfurization and denitrification activated carbon is high.
Therefore, the preparation research of the desulfurization and denitrification activated carbon by finding the nontoxic, tasteless and low-price adhesive to replace coal tar has practical significance, and is a technical problem which needs to be solved urgently in the domestic activated carbon industry at present.
Disclosure of Invention
The invention provides a method for preparing desulfurization and denitrification activated carbon without coal tar, aiming at solving the technical problems that the coal tar used for preparing desulfurization and denitrification activated carbon is volatile, toxic and harmful substances and has high cost in the prior art.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a method for preparing desulfurization and denitrification activated carbon without coal tar comprises the following steps:
1) preparation of adhesive solution: mixing sodium/calcium lignosulfonate with water, standing in a water bath, and obtaining an adhesive solution after the sodium/calcium lignosulfonate is completely dissolved;
2) preparing the desulfurization and denitrification active carbon: mixing the adhesive solution obtained in the step 1) with coal powder and water in proportion to form coal paste, molding by a granulator, uniformly carbonizing for 1 hour in a carbonization furnace with a temperature gradient of 350-650 ℃, feeding into an activation furnace, uniformly activating for 2 hours at a temperature gradient of 700-850 ℃, discharging, cooling and screening to obtain the desulfurization and denitrification activated carbon.
Further, the mass ratio of sodium/calcium lignosulfonate to water in the step 1) is 2: 3.
Further, the temperature of the water bath in the step 1) is 60-80 ℃, and the standing time in the water bath is 4 hours.
Further, the raw materials used in the step 2) are prepared from the following raw materials in parts by mass: 70-80 parts of coal powder, 10-15 parts of adhesive solution and 5-10 parts of water.
Furthermore, the time for mixing the adhesive solution with the coal powder and the water is 10 minutes, and the particle size of the molding material after molding by the granulator is 9-10 mm.
Preferably, the gradient carbonization in the step 2) is kept at 350 ℃ for 5min, at 450 ℃ for 5min, at 550 ℃ for 5min and at 650 ℃ for 5min, and the heating rate is 10 ℃/mim; gradient activation is that the temperature is maintained at 700 ℃ for 10min, 750 ℃ for 10min, 800 ℃ for 10min, 850 ℃ for 60min, and the heating rate is 5 ℃/min.
Compared with the prior art, the invention has the following beneficial effects:
1. the adhesive is nontoxic and tasteless, and can effectively reduce occupational health hazards to field operators.
2. The adhesive has low price and small dosage, and the adhesive powder is dissolved in water to be prepared into solution for use, thereby effectively reducing the preparation cost of the desulfurization and denitrification activated carbon.
3. In the using process of the adhesive, no organic matter volatilizes, and the problem of environmental pollution in the production process of the desulfurization and denitrification active carbon is solved.
Drawings
FIG. 1 is a flow chart of the preparation method of the present invention.
Detailed Description
The present invention is further illustrated by the following specific examples.
Example 1
1. Preparation of adhesive solution: using sodium lignosulfonate, with water at a ratio of 2:3, standing in a water bath at 60-80 ℃ for 4 hours to completely dissolve the sodium/calcium lignosulfonate to prepare a solution, and using the solution as an adhesive to prepare the desulfurization and denitrification active carbon.
2. And (3) preparing a finished product: mixing 80 parts of coal powder, 10 parts of adhesive solution and 10 parts of water according to a proportion, mixing for 10 minutes to form coal paste, molding by a granulator, forming the material with the particle size of 9-10mm, uniformly carbonizing for 1 hour (the gradient carbonization is maintained at 350 ℃ for 5min, the temperature is maintained at 450 ℃ for 5min, the temperature is maintained at 550 ℃ for 5min, the temperature is maintained at 650 ℃ for 5min, the heating rate is 10 ℃/mim), entering an activation furnace, uniformly activating for 2 hours under the temperature gradient of 700 ℃ to 850 ℃ (the gradient activation is maintained at 700 ℃ for 10min, the temperature is maintained at 750 ℃ for 10min, the temperature is maintained at 800 ℃ for 10min, the temperature is maintained at 850 ℃ for 60min, the heating rate is 5 ℃/min), discharging, cooling and screening to obtain the required desulfurization and denitrification active carbon, wherein the parameters of the prepared desulfurization and denitrification active carbon are shown in Table 1.
Example 2
1. Preparation of adhesive solution: using calcium lignosulfonate, with water at a rate of 2:3, standing in a water bath at 60-80 ℃ for 4 hours to completely dissolve the sodium/calcium lignosulfonate to prepare a solution, and using the solution as an adhesive to prepare the desulfurization and denitrification active carbon.
2. And (3) preparing a finished product: mixing 78 parts of coal powder, 13 parts of adhesive solution and 7 parts of water according to a proportion, mixing for 10 minutes to form coal paste, molding by a granulator, forming the material with the particle size of 9-10mm, uniformly carbonizing for 1 hour (the gradient carbonization is maintained at 350 ℃ for 5min, the temperature is maintained at 450 ℃ for 5min, the temperature is maintained at 550 ℃ for 5min, the temperature is maintained at 650 ℃ for 5min, the heating rate is 10 ℃/mim), entering an activation furnace, uniformly activating for 2 hours under the temperature gradient of 700 ℃ to 850 ℃ (the gradient activation is maintained at 700 ℃ for 10min, the temperature is maintained at 750 ℃ for 10min, the temperature is maintained at 800 ℃ for 10min, the temperature is maintained at 850 ℃ for 60min, the heating rate is 5 ℃/min), discharging, cooling and screening to obtain the required desulfurization and denitrification active carbon, wherein the parameters of the prepared desulfurization and denitrification active carbon are shown in Table 1.
Example 3
1. Preparation of adhesive solution: using sodium lignosulfonate, with water at a ratio of 2:3, standing in a water bath at 60-80 ℃ for 4 hours to completely dissolve the sodium/calcium lignosulfonate to prepare a solution, and using the solution as an adhesive to prepare the desulfurization and denitrification active carbon.
2. And (3) preparing a finished product: mixing 70 parts of coal powder, 15 parts of adhesive solution and 5 parts of water according to a proportion, mixing for 10 minutes to form coal paste, molding by a granulator, forming the material with the particle size of 9-10mm, uniformly carbonizing for 1 hour (the gradient carbonization is maintained at 350 ℃ for 5 minutes, the temperature is maintained at 450 ℃ for 5 minutes, the temperature is maintained at 550 ℃ for 5 minutes, the temperature is maintained at 650 ℃ for 5 minutes, the heating rate is 10 ℃/mim), entering an activation furnace, uniformly activating for 2 hours under the temperature gradient of 700 ℃ to 850 ℃ (the gradient activation is maintained at 700 ℃ for 10 minutes, the temperature is maintained at 750 ℃ for 10 minutes, the temperature is maintained at 800 ℃ for 10 minutes, the temperature is maintained at 850 ℃ for 60 minutes, the heating rate is 5 ℃/min), discharging, cooling and screening to obtain the required desulfurization and denitrification active carbon, wherein the parameters of the prepared desulfurization and denitrification active carbon are shown in Table 1.
Comparative example
Mixing 70 parts of coal powder, 15 parts of coal tar and 5 parts of water according to a proportion, mixing for 10 minutes to form coal paste, molding by a granulator, forming the material with the particle size of 9-10mm, uniformly carbonizing for 1 hour (the gradient carbonization is kept for 10 minutes at 350 ℃, 10 minutes at 450 ℃, 10 minutes at 550 ℃, 10 minutes at 650 ℃, and 10 minutes at 15 ℃/mim), entering an activation furnace, uniformly activating for 2 hours at the temperature gradient of 700-850 ℃ (the gradient activation is kept for 10 minutes at 700 ℃, 10 minutes at 750 ℃, 10 minutes at 800 ℃, 60 minutes at 850 ℃, and the heating rate is 5 ℃/min), discharging, cooling and screening to obtain the required desulfurization and denitrification activated carbon, wherein the parameters of the prepared desulfurization and denitrification activated carbon are shown in table 1.
Table 1 parameters of the desulfurization and denitrification activated carbon products prepared in examples 1 to 3 and comparative example:
as can be seen from Table 1, the performance of the desulfurization and denitrification activated carbon prepared by using the adhesive of the invention is superior to that of a comparative example, and on the premise that key adsorption indexes are close, the wear-resisting strength and the compressive strength are superior to those of the desulfurization and denitrification activated carbon prepared by coal tar, so that the service life of the desulfurization and denitrification activated carbon can be effectively prolonged, and meanwhile, the price of the adhesive used by the invention is lower than that of the coal tar, so that the production cost of the desulfurization and denitrification activated carbon can be effectively reduced.
Claims (6)
1. A method for preparing desulfurization and denitrification activated carbon without coal tar is characterized by comprising the following steps:
1) preparation of adhesive solution: mixing sodium/calcium lignosulfonate with water, standing in a water bath, and obtaining an adhesive solution after the sodium/calcium lignosulfonate is completely dissolved;
2) preparing the desulfurization and denitrification active carbon: mixing the adhesive solution obtained in the step 1) with coal powder and water in proportion to form coal paste, molding by a granulator, uniformly carbonizing for 1 hour in a carbonization furnace with a temperature gradient of 350-650 ℃, feeding into an activation furnace, uniformly activating for 2 hours at a temperature gradient of 700-850 ℃, discharging, cooling and screening to obtain the desulfurization and denitrification activated carbon.
2. The method for preparing the desulfurization and denitrification activated carbon without the coal tar according to claim 1, wherein the mass ratio of sodium/calcium lignosulfonate to water in the step 1) is 2: 3.
3. The method for preparing the desulfurization and denitrification activated carbon without the coal tar according to claim 1, wherein the temperature of the water bath in the step 1) is 60-80 ℃, and the standing time in the water bath is 4 hours.
4. The method for preparing desulfurization and denitrification activated carbon from coal tar-free coal as claimed in claim 1, wherein the raw materials used in step 2) comprise the following components in parts by mass: 70-80 parts of coal powder, 10-15 parts of adhesive solution and 5-10 parts of water.
5. The method for preparing the desulfurization and denitrification activated carbon without the coal tar according to claim 1, wherein the mixing time of the binder solution, the coal powder and the water is 10 minutes, and the particle size of the molding material after the molding of the granulator is 9-10 mm.
6. The method for preparing desulfurization and denitrification activated carbon without coal tar according to claims 1-5, wherein in the step 2), gradient carbonization is performed for 5min at 350 ℃, 5min at 450 ℃, 5min at 550 ℃, 5min at 650 ℃ and 5min at the heating rate of 10 ℃/mim; gradient activation is that the temperature is maintained at 700 ℃ for 10min, 750 ℃ for 10min, 800 ℃ for 10min, 850 ℃ for 60min, and the heating rate is 5 ℃/min.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110768089.6A CN113401899A (en) | 2021-07-07 | 2021-07-07 | Method for preparing desulfurization and denitrification active carbon without coal tar |
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| CN202110768089.6A CN113401899A (en) | 2021-07-07 | 2021-07-07 | Method for preparing desulfurization and denitrification active carbon without coal tar |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115180621A (en) * | 2022-08-18 | 2022-10-14 | 河津市华辉杰能源有限公司 | Tar-free activated carbon and preparation method thereof |
| CN116970367A (en) * | 2023-08-14 | 2023-10-31 | 上海华严检测技术有限公司 | Adhesive, adhesive preparation method and carbon adsorbent adopting adhesive |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4194901A (en) * | 1975-06-23 | 1980-03-25 | S.I.A.P. Societa Industriale Agglomerati E Prodotti Petroliferi S.P.A. | Process for producing graphite agglomerates, and products obtained by it |
| CA1194307A (en) * | 1983-06-01 | 1985-10-01 | John C. Pike | Production of solid fuel shapes from coal fines |
| FR2631347A1 (en) * | 1988-05-16 | 1989-11-17 | Charbonnages De France | Improved process for the manufacture of moulded coke |
| JP3746509B1 (en) * | 2004-08-20 | 2006-02-15 | 日本エンバイロケミカルズ株式会社 | Spherical activated carbon and its manufacturing method |
| KR20120070750A (en) * | 2010-12-22 | 2012-07-02 | 한국화학연구원 | Preparation of high density and high porous activated carbon |
| CN102674341A (en) * | 2012-05-14 | 2012-09-19 | 李钱胜 | Columnar activated carbon based on coal pitch binders and preparation method of columnar activated carbon |
| CN109250713A (en) * | 2018-11-23 | 2019-01-22 | 大同煤矿集团有限责任公司 | Desulphurization denitration process for preparing activated carbon method |
| CN110877909A (en) * | 2019-12-23 | 2020-03-13 | 太原市银溪源科技有限公司 | Coal columnar activated carbon and preparation method thereof |
| WO2020112707A1 (en) * | 2018-11-29 | 2020-06-04 | Cabot Corporation | Pelletized activated carbon and methods of production |
-
2021
- 2021-07-07 CN CN202110768089.6A patent/CN113401899A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4194901A (en) * | 1975-06-23 | 1980-03-25 | S.I.A.P. Societa Industriale Agglomerati E Prodotti Petroliferi S.P.A. | Process for producing graphite agglomerates, and products obtained by it |
| CA1194307A (en) * | 1983-06-01 | 1985-10-01 | John C. Pike | Production of solid fuel shapes from coal fines |
| FR2631347A1 (en) * | 1988-05-16 | 1989-11-17 | Charbonnages De France | Improved process for the manufacture of moulded coke |
| JP3746509B1 (en) * | 2004-08-20 | 2006-02-15 | 日本エンバイロケミカルズ株式会社 | Spherical activated carbon and its manufacturing method |
| KR20120070750A (en) * | 2010-12-22 | 2012-07-02 | 한국화학연구원 | Preparation of high density and high porous activated carbon |
| CN102674341A (en) * | 2012-05-14 | 2012-09-19 | 李钱胜 | Columnar activated carbon based on coal pitch binders and preparation method of columnar activated carbon |
| CN109250713A (en) * | 2018-11-23 | 2019-01-22 | 大同煤矿集团有限责任公司 | Desulphurization denitration process for preparing activated carbon method |
| WO2020112707A1 (en) * | 2018-11-29 | 2020-06-04 | Cabot Corporation | Pelletized activated carbon and methods of production |
| CN110877909A (en) * | 2019-12-23 | 2020-03-13 | 太原市银溪源科技有限公司 | Coal columnar activated carbon and preparation method thereof |
Non-Patent Citations (4)
| Title |
|---|
| RIVA, L ET AL: ""A study of densified biochar as carbon source in the silicon and ferrosilicon production"", 《ENERGY》 * |
| 周长波等: "《钢铁行业污染特征与全过程控制技术研究》", 31 December 2019, 中国环境出版集团 * |
| 赵孝佳: ""民用型煤的制备及燃烧特性研究"", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
| 陈文敏等 主编: "《洁净煤技术基础》", 31 March 1997, 煤炭工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115180621A (en) * | 2022-08-18 | 2022-10-14 | 河津市华辉杰能源有限公司 | Tar-free activated carbon and preparation method thereof |
| CN116970367A (en) * | 2023-08-14 | 2023-10-31 | 上海华严检测技术有限公司 | Adhesive, adhesive preparation method and carbon adsorbent adopting adhesive |
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Application publication date: 20210917 |
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