CN101993067A - Sulfur, nitreand mercury removing active carbon and preparation method thereof - Google Patents
Sulfur, nitreand mercury removing active carbon and preparation method thereof Download PDFInfo
- Publication number
- CN101993067A CN101993067A CN 201010519847 CN201010519847A CN101993067A CN 101993067 A CN101993067 A CN 101993067A CN 201010519847 CN201010519847 CN 201010519847 CN 201010519847 A CN201010519847 A CN 201010519847A CN 101993067 A CN101993067 A CN 101993067A
- Authority
- CN
- China
- Prior art keywords
- ammonia
- preparation
- coal
- water vapor
- carbonizing production
- 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.)
- Pending
Links
Abstract
The invention provides a sulfur, nitre and mercury removing active carbon and a preparation method thereof. The preparation method of the sulfur, nitre and mercury removing active carbon comprises the following steps of: 1, mediating coal powder, extruding and forming into particles; 2, carbonizing the particles to obtain a carbonized product; and 3, activating the carbonized product by using a mixed gas of steam and ammonia to obtain the sulfur, nitre and mercury removing active carbon. The sulfur, nitre and mercury removing active carbon prepared by using the method can be used for singly removing sulfur, nitre and mercury, and also used for integrally removing sulfur, nitre and mercury.
Description
Technical field
The present invention relates to a kind of activated coke and preparation method thereof, relate in particular to a kind of desulfurization denitration demercuration activated coke and preparation method thereof.
Background technology
China is that a few is one of country of main energy sources with coal in the world, and thermal power station and coal-burned industrial boiler have consumed the fire coal more than 60%.According to statistics, China's sulfurous gas 90%, oxynitride 67%, mercury 40%, 70% of smoke discharge amount all comes from coal burning.SO in the coal-fired flue-gas
2And NO
xEnvironmental pollutions such as caused acid rain and photo-chemical smog have become the serious problems that influence environment for human survival, along with the raising of environmental requirement in recent years, control SO simultaneously
2, NO
xMore urgent with the requirement of mercury emissions.With respect to independent application desulfurization, denitration and demercuration technology, combined desulfurization and denitration demercuration technology has advantage aspect economy, the level of resources utilization, China's coal burning pollution is on the rise, greatly develop low expense, high efficiency coal burning pollution Prevention Technique is the task of top priority, the combined desulfurization and denitration demercuration technology that therefore has advantages such as expense is low, compact construction is subjected to increasing attention.The core of combined desulfurization and denitration demercuration technology is coal-based sorbent material, i.e. activated coke.Developing high performance desulfurization denitration demercuration activated coke, to be used for filed of flue gas purification extremely urgent.
Summary of the invention
The purpose of this invention is to provide a kind of combined desulfurization and denitration demercuration activated coke and preparation method thereof.
The preparation method of a kind of desulfurization denitration demercuration activated coke provided by the invention comprises the steps:
1) coal dust being mediated also, extrusion molding is a particle;
2) described particle is carried out charing and obtain carbonizing production;
3) with water vapor and ammonia described carbonizing production is activated and promptly get described desulfurization denitration demercuration activated coke.
Above-mentioned preparation method comprises that also raw coal is carried out fragmentation obtains coal cinder, grinds the step that obtains described coal dust with described coal cinder then.Described raw coal is at least a in brown coal, bituminous coal or the hard coal; The particle diameter of described coal cinder is less than 50mm; The granularity of the coal dust of quality percentage composition more than 80% is less than 150 orders in the described coal dust.
Among the above-mentioned preparation method, the described squeezing pressure of step 1) is 10MPa-50Mpa, specifically can be 10Mpa, 25Mpa, 30Mpa or 50Mpa; Described coating of particles is that Φ 5-Φ 10mm is cylindrical, and is cylindrical as Φ 5mm, Φ 6mm, Φ 9mm or Φ 10mm.
Among the above-mentioned preparation method, step 2) temperature of described charing is 550 ℃-700 ℃, as 550 ℃, 600 ℃, 650 ℃ or 700 ℃; The time of described charing was 0.5 hour-4 hours, as 0.5 hour, 1 hour, 1.5 hours or 2 hours.
Among the above-mentioned preparation method, the described activatory temperature of step 3) is 700 ℃-950 ℃, as 700 ℃, 800 ℃, 850 ℃ or 950 ℃.
Among the above-mentioned preparation method, described water vapor of step 3) and ammonia be ammonia soln by adding the mixed gas of thermogenesis, the temperature of described heating is 300-500 ℃, as 300 ℃, 400 ℃ or 500 ℃; The concentration of described ammonia soln is 0%-25%, but is not 0%, as 10% or 25%.
Among the above-mentioned preparation method, described water vapor of step 3) and ammonia are that distilled water mixes the mixed gas that obtains by the water vapor that adds thermogenesis with ammonia, and the temperature of described heating is 300-500 ℃, as 300 ℃, 400 ℃ or 500 ℃; The volumn concentration of ammonia is 0%-10% in the described mixed gas, but is not 0%, as 2% or 10%.
Among the above-mentioned preparation method, the flow velocity that activation described carbonizing production per ton need be controlled described water vapor and ammonia in the step 3) is 5000m
3/ h-50000m
3/ h is as 5000m
3/ h, 20000m
3/ h, 30000m
3/ h or 50000m
3/ h; Described soak time was 0.1 hour-4 hours, as 0.1 hour, 1 hour, 1.5 hours or 4 hours.
Among the above-mentioned preparation method, described water vapor of step 3) and ammonia activate described carbonizing production successively; Activate the flow velocity that described carbonizing production per ton need control described water vapor and ammonia and be respectively 5000m
3/ h-50000m
3/ h and 1m
3/ h-500m
3/ h is as 20000m
3/ h and 200m
3/ h; The soak time of described steam activation carbonizing production was 0.1 hour-4 hours, as 1.0 hours; Described water vapor is 1 to the soak time of described carbonizing production and described ammonia to the ratio of the soak time of described carbonizing production: (1-5), and as 1: 2.
The desulfurization denitration demercuration activated coke excellent property of the present invention preparation has particularly been improved the denitration performance of activated coke, for combined desulfurization and denitration demercuration Industrial Application of Technology provides prerequisite, for the activated coke series product have added new product.Content technology of the present invention is simple, the employing raw coal is a raw material, by moulding, charing, add special activators-ammonia in the activatory process, industrial have operability, and the special activators wide material sources, cheap, belong to low-cost, premium quality product has bigger economic worth and social effect.
Embodiment
Employed experimental technique is ordinary method if no special instructions among the following embodiment.
Used material, reagent etc. if no special instructions, all can obtain from commercial channels among the following embodiment.
Used crusher model is jaw crusher QHPE125X150 among the following embodiment of the present invention; The ball mill model is QHQM-100.
The preparation of embodiment 1, desulfurization denitration demercuration activated coke
Brown coal are become coal cinder less than 30mm with crusher in crushing, put into ball mill then and grind, wherein the quality percentage composition is that the granularity of the coal dust more than 80% is less than 150 orders; Again coal dust is pinched to be incorporated in and carried out extrusion molding under the 25Mpa pressure, make the cylindrical particle that diameter is 9mm; Spheroidal particle is put into charring furnace again and carried out charing and obtain 1 ton of carbonizing production, wherein the temperature of charing is 550 ℃, and the time of charing is 2 hours; Again the spheroidal particle after the charing is put into 700 ℃ activation furnace, the water vapor that to be 10% ammonia soln then with concentration produce by steam generator and the mixed gas of ammonia feed to activate in the activation furnace and promptly get the desulfurization denitration demercuration activated coke, and the interior temperature of steam generator is 300 ℃; Wherein, the flow velocity of mixed gas is 5000m
3/ h, soak time are 4h, and activation product yield is 85%.
The preparation of embodiment 2, desulfurization denitration demercuration activated coke
Bituminous coal is become coal cinder less than 20mm with crusher in crushing, put into ball mill then and grind, wherein the quality percentage composition is that the granularity of the coal dust more than 80% is less than 150 orders; Again coal dust is pinched to be incorporated in and carried out extrusion molding under the 30Mpa pressure, make the cylindrical particle that diameter is 10mm; Cylindrical particle is put into charring furnace again and carried out charing and obtain 1 ton of carbonizing production, wherein the temperature of charing is 700 ℃, and the time of charing is 0.5 hour; Again the cylindrical particle after the charing is put into 950 ℃ activation furnace, the water vapor that to be 25% ammonia soln then with concentration produce by steam generator and the mixed gas of ammonia feed to activate in the activation furnace and promptly get the desulfurization denitration demercuration activated coke, and the interior temperature of steam generator is 400 ℃; Wherein, the flow velocity of mixed gas is 50000m
3/ h, soak time are 0.1h, and activation product yield is 90%.
The preparation of embodiment 3, desulfurization denitration demercuration activated coke
Hard coal is become coal cinder less than 50mm with crusher in crushing, put into ball mill then and grind, wherein the quality percentage composition is that the granularity of the coal dust more than 90% is less than 150 orders; Again coal dust is pinched to be incorporated in and carried out extrusion molding under the 50Mpa pressure, make the cylindrical particle that diameter is 5mm; Cylindrical particle is put into charring furnace again and carried out charing and obtain 1 ton of carbonizing production, wherein the temperature of charing is 600 ℃, and the time of charing is 1 hour; Again the cylindrical particle after the charing is put into 800 ℃ activation furnace, the water vapor that distilled water is produced by steam generator and ammonia that another pipeline feeds directly mix to activate in the mixed gas feeding activation furnace of the water vapor that obtains and ammonia and promptly get the desulfurization denitration demercuration activated coke then, and the interior temperature of steam generator is 500 ℃; Wherein, the volumn concentration of ammonia is 2% in this mixed gas,, the flow velocity of mixed gas is 30000m
3/ h, soak time are 1h, and activation product yield is 88%.
The preparation of embodiment 4, desulfurization denitration demercuration activated coke
Hard coal and bituminous coal in ratio coal blending in 2: 1, are become coal cinder less than 30mm with crusher in crushing then, put into ball mill then and grind, wherein the quality percentage composition is that the granularity of the coal dust more than 80% is less than 180 orders; Again coal dust is pinched to be incorporated in and carried out extrusion molding under the 10Mpa pressure, make the cylindrical particle that diameter is 6mm; Cylindrical particle is put into charring furnace again and carried out charing and obtain 1 ton of carbonizing production, wherein the temperature of charing is 650 ℃, and the time of charing is 1.5 hours; Again the cylindrical particle after the charing is put into 850 ℃ activation furnace, the water vapor that distilled water is produced by steam generator and ammonia that another pipeline feeds directly mix to activate in the mixed gas feeding activation furnace of the water vapor that obtains and ammonia and promptly obtain the desulfurization denitration demercuration activated coke then, and the interior temperature of steam generator is 500 ℃; Wherein, the volumn concentration of ammonia is 10% in this mixed gas,, the flow velocity of mixed gas is 20000m
3/ h, soak time are 1.5h, and activation product yield is 86%.
The preparation of embodiment 5, desulfurization denitration demercuration activated coke
Hard coal and bituminous coal in ratio coal blending in 2: 1, are become coal cinder less than 30mm with crusher in crushing then, put into ball mill then and grind, wherein the quality percentage composition is that the granularity of the coal dust more than 80% is less than 180 orders; Again coal dust is pinched to be incorporated in and carried out extrusion molding under the 10Mpa pressure, make the cylindrical particle that diameter is 6mm; Cylindrical particle is put into charring furnace again and carried out charing and obtain 1 ton of carbonizing production, wherein the temperature of charing is 650 ℃, and the time of charing is 1.5 hours; The cylindrical particle after the charing is put into 850 ℃ activation furnace, elder generation feeds water vapor in the activation furnace and activates then again, and its flow velocity is 20000m
3/ h, soak time are 1.0 hours; Stop to feed water vapor then, ammonia is fed in the activation furnace activate, its flow velocity is 200m
3/ h, soak time is 2.0 hours, obtains the desulfurization denitration demercuration activated coke, activation product yield is 89%.
The desulfurization denitration demercuration activated coke of embodiment 6, embodiment 1-5 and the performance of common desulphurizing activated coke are relatively
The used common activated coke of present embodiment is bought the emerging charcoal industry limited liability company in section.
Sulphur among the present invention in the flue gas, nitre and mercury mainly refer to SO
2, NO and Hg, SO
2SO with the production of NO employing Beijing BAIF-Maihak Analytical Instrument Co., Ltd.
2With the NO infrared analyzer, model is QGS-08B; Mercury concentration adopts continuous online mercury analyzer to detect.Flue gas after the desulfurization denitration demercuration is introduced analytical instrument respectively, and analytical instrument is measured the concentration of sulphur in the flue gas, nitre and mercury automatically, then concentration signal is passed to computer data are preserved.According to concentration before the flue gas feeding activated coke and the concentration behind the desulfurization denitration demercuration, can obtain removal efficiency by calculating.
The desulfurization denitration demercuration activated coke of embodiment 1-5 and the performance comparison result of common desulphurizing activated coke are as shown in table 1.
The desulfurization denitration demercuration activated coke of table 1 embodiment 1-5 and the performance of common desulphurizing activated coke are relatively
As can be seen, the denitration efficiency of the activated coke of the present invention's preparation not only is improved, and desulfuration demercuration efficient is equally very high from above-mentioned table 1; The activated coke of the present invention's preparation can not only be used for independent desulfurization, denitration, demercuration, also can be used for the combined desulfurization and denitration demercuration.
Claims (10)
1. the preparation method of a desulfurization denitration demercuration activated coke comprises the steps:
1) coal dust being mediated also, extrusion molding is a particle;
2) described particle is carried out charing and obtain carbonizing production;
3) with water vapor and ammonia described carbonizing production is activated and promptly get described desulfurization denitration demercuration activated coke.
2. method according to claim 1 is characterized in that: described method comprises that also raw coal is carried out fragmentation obtains coal cinder, grinds the step that obtains described coal dust with described coal cinder then.
3. preparation method according to claim 2 is characterized in that: described raw coal is at least a in brown coal, bituminous coal or the hard coal.
4. according to arbitrary described preparation method among the claim 1-3, it is characterized in that: the described squeezing pressure of step 1) is 10MPa-50Mpa; Step 2) temperature of described charing is 550 ℃-700 ℃; Step 2) time of described charing is 0.5 hour-4 hours.
5. according to arbitrary described preparation method among the claim 1-4, it is characterized in that: the described activatory temperature of step 3) is 700 ℃-950 ℃.
6. according to arbitrary described preparation method among the claim 1-5, it is characterized in that: described water vapor of step 3) and ammonia are that ammonia soln is by adding the mixed gas of thermogenesis; The concentration of described ammonia soln is 0%-25%, but is not 0%.
7. according to arbitrary described preparation method among the claim 1-5, it is characterized in that: described water vapor of step 3) and ammonia are that distilled water mixes the mixed gas that obtains by the water vapor that adds thermogenesis with ammonia; The volumn concentration of ammonia is 0%-10% in the described mixed gas, but is not 0%.
8. according to arbitrary described preparation method among the claim 1-7, it is characterized in that: activating described carbonizing production per ton, need to control the flow velocity of described water vapor and ammonia be 5000m
3/ h-50000m
3/ h, described soak time are 0.1 hour-4 hours.
9. according to arbitrary described preparation method among the claim 1-5, it is characterized in that: described water vapor of step 3) and ammonia activate described carbonizing production successively; Activate the flow velocity that described carbonizing production per ton need control described water vapor and ammonia and be respectively 5000m
3/ h-50000m
3/ h and 1m
3/ h-500m
3/ h, the soak time of the described carbonizing production of described steam activation are 0.1 hour-4 hours; Described water vapor is 1 to the soak time of described carbonizing production and described ammonia to the ratio of the soak time of described carbonizing production: (1-5).
10. the activated coke of arbitrary described method preparation among the claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010519847 CN101993067A (en) | 2010-10-19 | 2010-10-19 | Sulfur, nitreand mercury removing active carbon and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010519847 CN101993067A (en) | 2010-10-19 | 2010-10-19 | Sulfur, nitreand mercury removing active carbon and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101993067A true CN101993067A (en) | 2011-03-30 |
Family
ID=43783905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010519847 Pending CN101993067A (en) | 2010-10-19 | 2010-10-19 | Sulfur, nitreand mercury removing active carbon and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101993067A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104801270A (en) * | 2014-01-27 | 2015-07-29 | 中国人民解放军63971部队 | Preparation method of adsorbent for removing mercury from natural gas |
| CN105289492A (en) * | 2015-11-17 | 2016-02-03 | 东华大学 | Multifunctional desulfurization, denitrification, demercuration adsorbent and preparation and application thereof |
| CN107159120A (en) * | 2017-06-16 | 2017-09-15 | 华中科技大学 | A kind of biological coke physical chemistry joint activation method |
| CN109174140A (en) * | 2018-09-10 | 2019-01-11 | 太原科技大学 | A kind of flue gas desulfurizing and hydrargyrum-removing catalyst and its preparation method and application |
| CN110755999A (en) * | 2019-11-05 | 2020-02-07 | 山东大学 | Full-flow fluidized active coke demercuration recovery process and system |
| CN111514748A (en) * | 2020-04-30 | 2020-08-11 | 南京中研科技有限公司 | Wide-temperature flue gas dry desulfurizing agent for moving bed process and preparation method thereof |
| CN114132924A (en) * | 2021-11-30 | 2022-03-04 | 上海巴库斯超导新材料有限公司 | Low-energy-consumption preparation method of artificial graphite/coke negative electrode material of lithium ion battery |
| CN114180572A (en) * | 2021-12-16 | 2022-03-15 | 煤炭科学技术研究院有限公司 | Preparation method of high-strength active coke for flue gas desulfurization and denitrification |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1491886A (en) * | 2002-10-23 | 2004-04-28 | 煤炭科学研究总院北京煤化学研究所 | Process for preparing active carbon |
| CN101538038A (en) * | 2009-04-27 | 2009-09-23 | 煤炭科学研究总院 | Activated coke and preparation method and application thereof |
-
2010
- 2010-10-19 CN CN 201010519847 patent/CN101993067A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1491886A (en) * | 2002-10-23 | 2004-04-28 | 煤炭科学研究总院北京煤化学研究所 | Process for preparing active carbon |
| CN101538038A (en) * | 2009-04-27 | 2009-09-23 | 煤炭科学研究总院 | Activated coke and preparation method and application thereof |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104801270A (en) * | 2014-01-27 | 2015-07-29 | 中国人民解放军63971部队 | Preparation method of adsorbent for removing mercury from natural gas |
| CN105289492A (en) * | 2015-11-17 | 2016-02-03 | 东华大学 | Multifunctional desulfurization, denitrification, demercuration adsorbent and preparation and application thereof |
| CN105289492B (en) * | 2015-11-17 | 2019-07-23 | 东华大学 | A kind of multi-functional desulfurization denitration demercuration adsorbent and its preparation and application |
| CN107159120A (en) * | 2017-06-16 | 2017-09-15 | 华中科技大学 | A kind of biological coke physical chemistry joint activation method |
| CN107159120B (en) * | 2017-06-16 | 2019-09-27 | 华中科技大学 | A kind of biology coke physical chemistry joint activation method |
| CN109174140A (en) * | 2018-09-10 | 2019-01-11 | 太原科技大学 | A kind of flue gas desulfurizing and hydrargyrum-removing catalyst and its preparation method and application |
| CN109174140B (en) * | 2018-09-10 | 2021-05-25 | 太原科技大学 | Flue gas desulfurization and demercuration catalyst and preparation method and application thereof |
| CN110755999A (en) * | 2019-11-05 | 2020-02-07 | 山东大学 | Full-flow fluidized active coke demercuration recovery process and system |
| CN111514748A (en) * | 2020-04-30 | 2020-08-11 | 南京中研科技有限公司 | Wide-temperature flue gas dry desulfurizing agent for moving bed process and preparation method thereof |
| CN114132924A (en) * | 2021-11-30 | 2022-03-04 | 上海巴库斯超导新材料有限公司 | Low-energy-consumption preparation method of artificial graphite/coke negative electrode material of lithium ion battery |
| CN114180572A (en) * | 2021-12-16 | 2022-03-15 | 煤炭科学技术研究院有限公司 | Preparation method of high-strength active coke for flue gas desulfurization and denitrification |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101993067A (en) | Sulfur, nitreand mercury removing active carbon and preparation method thereof | |
| CN110721571A (en) | Dry desulfurizing agent for cement production and preparation method thereof | |
| CN103525502A (en) | Coal-fired power plant boiler biomass reburning denitration agent and preparation method thereof | |
| CN102061212A (en) | Fire coal efficient catalysis combustion-supporting agent and preparation method and use method thereof | |
| CN102839280B (en) | Selective distribution and granulation method of fuel for enhancing iron ore sintering with biomass energy | |
| CN103736368A (en) | Active carbon-based flue gas desulfurizer and preparation method thereof | |
| CN112717677A (en) | Dry desulfurizing agent with good dispersibility and preparation method thereof | |
| US9943827B2 (en) | Dechlorinating agent for blast furnace top gas | |
| CN106698423A (en) | Method of preparing active coke for desulfurization and denitrification of sintering flue gas by using semi-coke | |
| CN109384225B (en) | Method for producing desulfurization and denitrification active carbon | |
| CN105176618A (en) | Clean coal and production method thereof | |
| CN101485972B (en) | Coal-based activated coke for desulfuration and preparation method thereof | |
| CN104629848B (en) | A kind of biomass granule fuel and preparation method thereof | |
| CN102085476B (en) | Shaped coal-based SO2 and NO adsorption catalyst and preparation method thereof | |
| CN106000073A (en) | Environmental protection process for treating boiler flue gas | |
| CN113491932A (en) | System and method for low-temperature desulfurization | |
| CN104962334B (en) | A kind of agglomeration for iron mine biomass char hybrid fuel | |
| CN104229793A (en) | Brown coal active coke and preparation method thereof | |
| CN115073023B (en) | Preparation method of slaked lime for efficient desulfurization | |
| CN105366679A (en) | Raw material for producing oxygen thermal method calcium carbide and preparation method for raw material | |
| CN102373105B (en) | Fire coal or inferior coal desulfurizer for sulfur fixation in circulating fluidized bed boiler | |
| CN102086485B (en) | Comprehensive utilization method for vanadium extraction and power generation by using stone coal burned by circulating fluidized bed boiler | |
| CN102976321A (en) | Manufacturing method of flue gas desulfurization/denitrification activated carbon | |
| CN203346173U (en) | System for producing novel artificial wetland packing by utilizing sludge | |
| CN102977965B (en) | Biomass briquette for lime shaft kiln and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110330 |