CN104774654B - A kind of application method of blast furnace gas antichlor - Google Patents
A kind of application method of blast furnace gas antichlor Download PDFInfo
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- CN104774654B CN104774654B CN201510118754.1A CN201510118754A CN104774654B CN 104774654 B CN104774654 B CN 104774654B CN 201510118754 A CN201510118754 A CN 201510118754A CN 104774654 B CN104774654 B CN 104774654B
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- antichlor
- lime stone
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- furnace gas
- sodium carbonate
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/002—Removal of contaminants
- C10K1/003—Removal of contaminants of acid contaminants, e.g. acid gas removal
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/20—Purifying combustible gases containing carbon monoxide by treating with solids; Regenerating spent purifying masses
- C10K1/205—Methods and apparatus for treating the purifying masses without their regeneration
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/32—Purifying combustible gases containing carbon monoxide with selectively adsorptive solids, e.g. active carbon
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
- Blast Furnaces (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
A kind of application method of blast furnace gas antichlor, it is using cheap industrial lime stone, commercial sodium carbonate and potassium hydroxide as primary raw material, optimize its proportioning and preparation technology, pelletizing is carried out by disc balling machine, HCl gases are removed by fixed bed reactors, 1ppm is reached as the out-of-service time according to evaluation antichlor using the HCl in blast furnace gas after reaction, it is proposed that a kind of application method suitable for blast furnace iron-making process and the blast furnace gas antichlor of equipment feature.
Description
Technical field
The present invention relates to making for complicated ingredient and high temperature coal gas purification technical field, particularly a kind of blast furnace gas antichlor
Use method.
Background technology
Blast furnace gas in blast furnace gas dry dusting technology first passes around gravitational dust collection and carries out one-time dedusting, subsequently into
Sack cleaner carries out final dusting, and the later purified gas of dedusting enters the decompression acting of TRT units turbine, drives generator hair
Electricity.Blast furnace gas dry dusting purification techniques has relative to past scrubbing tower, Venturi tube and double literary Venturi tube wet dedustings
Very big advantage, purification efficiency is high, water consumption is greatly reduced, and what is more important can significantly carry TRT generated energy
Height, the recovery and utilization of energy are added, reduces the energy resource consumption of ton iron.
With the increase of the development of China's steel and iron industry, especially production cost, many cheap iron ores are of concern simultaneously
Progressively begin to use.The content of micro- particularly detrimental element in cheap iron ore is higher, particularly brings into blast furnace
Content of Cl element increase so that the HCl contents in blast furnace gas are also in rising trend, undoubtedly exacerbate the corruption of pipeline and equipment
Erosion.In recent years, the hardware such as the blast furnace gas pipeline of each iron and steel enterprise, TRT blades all receives different degrees of HCl and invaded
Erosion.Therefore, the HCl removed under the conditions of dry method dust in blast furnace gas is studied to ask as field of metallurgy focus urgently to be resolved hurrily
One of topic.
Although burnt in integrated coal gasification combined cycle (IGCC), coal gasified fuel battery (MCFC), petrochemical industry and rubbish
Removing HCl numerous studies had been done in the fields such as burning, such as using bed technology, antichlor used is mostly alkaline dechlorination
Agent, it is broadly divided into lime base (limestone, white lime and quick lime) and sodium base (soda ash, sodium bicarbonate).But due to blast furnace coal
Gas has that flow velocity is fast, flow is big, pressure is high, CO2With water vapour and stove dust content it is all higher etc. exclusive the characteristics of, these works
Skill and technology are not all suitable for blast furnace gas.
On the basis of the application uses for reference the studies above, the characteristics of for blast furnace gas and the process conditions of ironmaking processes and set
Standby layout, develops a kind of application method of blast furnace gas antichlor cheap, dechlorination effect is good.
The content of the invention
The purpose of the present invention is exactly to be to provide a kind of application method for the antichlor that can reach good dechlorination effect.
To achieve the above object, the technical solution adopted by the present invention is：
One), it is used to prepare antichlor as raw material from industrial lime stone, commercial sodium carbonate and potassium hydroxide, wherein
The granularity of lime stone will be in below 5mm, and the granularity of sodium carbonate and potassium hydroxide will be in below 3mm；
Two), industrial lime stone is soaked to 1h, wherein potassium hydroxide solution concentration through potassium hydroxide solution as former state first
In 10%-15%, then the lime stone after immersion is placed in 700 DEG C of hot conditions again calcine 1-2h；
Three), by the lime stone (hereinafter referred to as soft burnt lime stone) after calcining and sodium carbonate conventional ball milling techniques or other
Flouring technology is levigate to less than 20 μm, according still further to soft burnt lime stone: sodium carbonate=30-70: 70-30 (percentage by weight) is matched somebody with somebody
Material, then carries out premix, incorporation time 10-15min, the powder mixed is continued to grind using flouring technology,
Until the granularity of all powder is all below 80 μm；
Four), with the mixed-powder made, with addition of 3% bentonite, dry-mixed mixing.Using disc balling machine, vaporific plus water enters
Row pelletizing, screens 3-10mm finished product bead, naturally dry or under the conditions of 100 DEG C low temperature drying obtain antichlor into
Product.
Five), the antichlor product is placed in fixed container, allows the blast furnace gas containing HCl gases to hold by fixed
Device, HCl gas concentrations are more than the antichlor more renewed again during 1ppm in the blast furnace gas after container to be fixed.
To above-mentioned steps one) to step 4) obtained by product carry out time of break-through and the measure of a breakthrough chlorine content,
It is preferred that the product gone out has longer time of break-through and higher breakthrough chlorine content, excellent performance.
It is an advantage of the invention that employing cheap raw material, simple preparation process is have passed through, is finally proposed
A kind of novel dechlorination sorbent is used for the application method of blast furnace gas removing HCl gases.
Embodiment
Below, by specific experiment embodiment come the present invention is described in detail.
Experiment embodiment 1
One) antichlor, wherein lime, are prepared as raw material from industrial lime stone, commercial sodium carbonate and potassium hydroxide
The granularity of stone is less than 5mm, and the granularity of sodium carbonate and potassium hydroxide is less than 3mm；
Two) industrial lime stone, is soaked into 1h through potassium hydroxide solution as former state, the concentration of wherein potassium hydroxide solution exists
10%, then again by the lime stone after immersion be placed in 700 DEG C hot conditions calcine 1h；
Three), by the lime stone (hereinafter referred to as soft burnt lime stone) after calcining and sodium carbonate conventional ball milling techniques or other
Flouring technology is levigate to less than 20 μm, according still further to soft burnt lime stone: sodium carbonate=30: 70 (percentage by weights) carry out dispensing, so
After carry out premix, incorporation time 10min, the powder mixed is continued to grind using flouring technology, until all
The granularity of powder is all below 80 μm；
Four), with the mixed-powder made, with addition of 3% bentonite, dry-mixed mixing.Using disc balling machine, vaporific plus water enters
Row pelletizing, 3-10mm finished product bead is screened, low temperature drying obtains antichlor product under the conditions of 100 DEG C；
Five), the antichlor product is placed in fixed container, allows the blast furnace gas containing HCl gases to hold by fixed
Device, HCl gas concentrations are more than the antichlor more renewed again during 1ppm in the blast furnace gas after container to be fixed.
Experiment embodiment 2
One) antichlor, wherein lime, are prepared as raw material from industrial lime stone, commercial sodium carbonate and potassium hydroxide
The granularity of stone is less than 5mm, and the granularity of sodium carbonate and potassium hydroxide is less than 3mm；
Two) industrial lime stone, is soaked into 1h through potassium hydroxide solution as former state, the concentration of wherein potassium hydroxide solution exists
15%, then again by the lime stone after immersion be placed in 700 DEG C hot conditions calcine 1h；
Three), by the lime stone (hereinafter referred to as soft burnt lime stone) after calcining and sodium carbonate conventional ball milling techniques or other
Flouring technology is levigate to less than 20 μm, according still further to soft burnt lime stone: sodium carbonate=30: 70 (percentage by weights) carry out dispensing, so
After carry out premix, incorporation time 10min, the powder mixed is continued to grind using flouring technology, until all
The granularity of powder is all below 80 μm；
Four), with the mixed-powder made, with addition of 3% bentonite, dry-mixed mixing.Using disc balling machine, vaporific plus water enters
Row pelletizing, 3-10mm finished product bead is screened, low temperature drying obtains antichlor product under the conditions of 100 DEG C；
Five), the antichlor product is placed in fixed container, allows the blast furnace gas containing HCl gases to hold by fixed
Device, HCl gas concentrations are more than the antichlor more renewed again during 1ppm in the blast furnace gas after container to be fixed.
Experiment embodiment 3
One) antichlor, wherein lime, are prepared as raw material from industrial lime stone, commercial sodium carbonate and potassium hydroxide
The granularity of stone is less than 5mm, and the granularity of sodium carbonate and potassium hydroxide is less than 3mm；
Two) industrial lime stone, is soaked into 1h through potassium hydroxide solution as former state, the concentration of wherein potassium hydroxide solution exists
15%, then again by the lime stone after immersion be placed in 700 DEG C hot conditions calcine 2h；
Three), by the lime stone (hereinafter referred to as soft burnt lime stone) after calcining and sodium carbonate conventional ball milling techniques or other
Flouring technology is levigate to less than 20 μm, according still further to soft burnt lime stone: sodium carbonate=30: 70 (percentage by weights) carry out dispensing, so
After carry out premix, incorporation time 10min, the powder mixed is continued to grind using flouring technology, until all
The granularity of powder is all below 80 μm；
Four), with the mixed-powder made, with addition of 3% bentonite, dry-mixed mixing.Using disc balling machine, vaporific plus water enters
Row pelletizing, 3-10mm finished product bead is screened, low temperature drying obtains antichlor product under the conditions of 100 DEG C；
Five), the antichlor product is placed in fixed container, allows the blast furnace gas containing HCl gases to hold by fixed
Device, HCl gas concentrations are more than the antichlor more renewed again during 1ppm in the blast furnace gas after container to be fixed.
Experiment embodiment 4
One) antichlor, wherein lime, are prepared as raw material from industrial lime stone, commercial sodium carbonate and potassium hydroxide
The granularity of stone is less than 5mm, and the granularity of sodium carbonate and potassium hydroxide is less than 3mm；
Two) industrial lime stone, is soaked into 1h through potassium hydroxide solution as former state, the concentration of wherein potassium hydroxide solution exists
15%, then again by the lime stone after immersion be placed in 700 DEG C hot conditions calcine 2h；
Three), by the lime stone (hereinafter referred to as soft burnt lime stone) after calcining and sodium carbonate conventional ball milling techniques or other
Flouring technology is levigate to less than 20 μm, according still further to soft burnt lime stone: sodium carbonate=50: 50 (percentage by weights) carry out dispensing, so
After carry out premix, incorporation time 15min, the powder mixed is continued to grind using flouring technology, until all
The granularity of powder is all below 80 μm；
Four), with the mixed-powder made, with addition of 3% bentonite, dry-mixed mixing.Using disc balling machine, vaporific plus water enters
Row pelletizing, 3-10mm finished product bead is screened, low temperature drying obtains antichlor product under the conditions of 100 DEG C；
Five), the antichlor product is placed in fixed container, allows the blast furnace gas containing HCl gases to hold by fixed
Device, HCl gas concentrations are more than the antichlor more renewed again during 1ppm in the blast furnace gas after container to be fixed.
Experiment embodiment 5
One) antichlor, wherein lime, are prepared as raw material from industrial lime stone, commercial sodium carbonate and potassium hydroxide
The granularity of stone is less than 5mm, and the granularity of sodium carbonate and potassium hydroxide is less than 3mm；
Two) industrial lime stone, is soaked into 1h through potassium hydroxide solution as former state, the concentration of wherein potassium hydroxide solution exists
15%, then again by the lime stone after immersion be placed in 700 DEG C hot conditions calcine 2h；
Three), by the lime stone (hereinafter referred to as soft burnt lime stone) after calcining and sodium carbonate conventional ball milling techniques or other
Flouring technology is levigate to less than 20 μm, according still further to soft burnt lime stone: sodium carbonate=60: 40 (percentage by weights) carry out dispensing, so
After carry out premix, incorporation time 10min, the powder mixed is continued to grind using flouring technology, until all
The granularity of powder is all below 80 μm；
Four), with the mixed-powder made, with addition of 3% bentonite, dry-mixed mixing.Using disc balling machine, vaporific plus water enters
Row pelletizing, 3-10mm finished product bead is screened, low temperature drying obtains antichlor product under the conditions of 100 DEG C；
Five), the antichlor product is placed in fixed container, allows the blast furnace gas containing HCl gases to hold by fixed
Device, HCl gas concentrations are more than the antichlor more renewed again during 1ppm in the blast furnace gas after container to be fixed.
Experiment embodiment 6
One) antichlor, wherein lime, are prepared as raw material from industrial lime stone, commercial sodium carbonate and potassium hydroxide
The granularity of stone is less than 5mm, and the granularity of sodium carbonate and potassium hydroxide is less than 3mm；
Two) industrial lime stone, is soaked into 1h through potassium hydroxide solution as former state, the concentration of wherein potassium hydroxide solution exists
15%, then again by the lime stone after immersion be placed in 700 DEG C hot conditions calcine 1.5h；
Three), by the lime stone (hereinafter referred to as soft burnt lime stone) after calcining and sodium carbonate conventional ball milling techniques or other
Flouring technology is levigate to less than 20 μm, according still further to soft burnt lime stone: sodium carbonate=70: 30 (percentage by weights) carry out dispensing, so
After carry out premix, incorporation time 13min, the powder mixed is continued to grind using flouring technology, until all
The granularity of powder is all below 80 μm；
Four), with the mixed-powder made, with addition of 3% bentonite, dry-mixed mixing.Using disc balling machine, vaporific plus water enters
Row pelletizing, 3-10mm finished product bead is screened, low temperature drying obtains antichlor product under the conditions of 100 DEG C；
Five), the antichlor product is placed in fixed container, allows the blast furnace gas containing HCl gases to hold by fixed
Device, HCl gas concentrations are more than the antichlor more renewed again during 1ppm in the blast furnace gas after container to be fixed.
Experiment embodiment 7
One) antichlor, wherein lime, are prepared as raw material from industrial lime stone, commercial sodium carbonate and potassium hydroxide
The granularity of stone is less than 5mm, and the granularity of sodium carbonate and potassium hydroxide is less than 3mm；
Two) industrial lime stone, is soaked into 1h through potassium hydroxide solution as former state, the concentration of wherein potassium hydroxide solution exists
15%, then again by the lime stone after immersion be placed in 700 DEG C hot conditions calcine 1.5h；
Three), by the lime stone (hereinafter referred to as soft burnt lime stone) after calcining and sodium carbonate conventional ball milling techniques or other
Flouring technology is levigate to less than 20 μm, according still further to soft burnt lime stone: sodium carbonate=40: 60 (percentage by weights) carry out dispensing, so
After carry out premix, incorporation time 15min, the powder mixed is continued to grind using flouring technology, until all
The granularity of powder is all below 80 μm；
Four), with the mixed-powder made, with addition of 3% bentonite, dry-mixed mixing.Using disc balling machine, vaporific plus water enters
Row pelletizing, 3-10mm finished product bead is screened, low temperature drying obtains antichlor product under the conditions of 100 DEG C；
Five), the antichlor product is placed in fixed container, allows the blast furnace gas containing HCl gases to hold by fixed
Device, HCl gas concentrations are more than the antichlor more renewed again during 1ppm in the blast furnace gas after container to be fixed.
Experiment embodiment 8
One) antichlor, wherein lime, are prepared as raw material from industrial lime stone, commercial sodium carbonate and potassium hydroxide
The granularity of stone is less than 5mm, and the granularity of sodium carbonate and potassium hydroxide is less than 3mm；
Two) industrial lime stone, is soaked into 1h through potassium hydroxide solution as former state, the concentration of wherein potassium hydroxide solution exists
10%, then again by the lime stone after immersion be placed in 700 DEG C hot conditions calcine 2h；
Three), by the lime stone (hereinafter referred to as soft burnt lime stone) after calcining and sodium carbonate conventional ball milling techniques or other
Flouring technology is levigate to less than 20 μm, according still further to soft burnt lime stone: sodium carbonate=50: 50 (percentage by weights) carry out dispensing, so
After carry out premix, incorporation time 12min, the powder mixed is continued to grind using flouring technology, until all
The granularity of powder is all below 80 μm；
Four), with the mixed-powder made, with addition of 3% bentonite, dry-mixed mixing.Using disc balling machine, vaporific plus water enters
Row pelletizing, 3-10mm finished product bead is screened, low temperature drying obtains antichlor product under the conditions of 100 DEG C；
Five), the antichlor product is placed in fixed container, allows the blast furnace gas containing HCl gases to hold by fixed
Device, HCl gas concentrations are more than the antichlor more renewed again during 1ppm in the blast furnace gas after container to be fixed.
Step 1 will be passed through) to step 4) the finished product bead that is made and dries place it is standby in dry environments.
The Performance Evaluating Indexes of antichlor
Dechlorination experimentation：Be put into a certain amount of antichlor product in HCl removes experimental provision, fixed thickness of feed layer and
HCl concentration in top gas.Experimental gas is filled with into experimental provision, keeps the flow of experimental gas relatively stable,
So that antichlor product is fully reacted in experimental provision with experimental gas.
Time of break-through：In antichlor device, after the purification of dechlorinated dose of top gas in tail gas HCl contents more than 1
During ppm, it is believed that antichlor is pierced, from being passed through the time of break-through that the time that HCl is pierced to antichlor is antichlor.
The assay method of time of break-through：The control of blast furnace gas flow is 5L/min, and the control of HCl concentration is 200ppm, measurement
The HCl concentration in fixed bed reactors exit, record exit HCl concentration reach 1ppm time.
Breakthrough chlorine content：Breakthrough chlorine content referred in 0-300 DEG C of temperature range, 0.1-0.3MPa pressure
Under the conditions of, reactor outlet HCl concentration is equal to import HCl concentration and keeps 10min, and solid dechlorinating agent absorbs the quality percentage of chlorine
Rate.Import HCl volume fractions are 0.99%.
The assay method of breakthrough chlorine content：Blast furnace gas intake is 5L/min, and HCl concentration is 1000ppm, experiment
Time is 30min, takes out 20 beads at random and uses breakthrough chlorine content of gas laser analysis-e/or determining.
The time of break-through of different antichlors is different, and time of break-through is longer, illustrates the antichlor and the HCl's in blast furnace gas
Real reaction is better, under identical thickness of feed layer, is more advantageous to remove the HCl in blast furnace gas；Different antichlors are once worn
Saturating HCl content is different, and a breakthrough chlorine content of antichlor is higher, illustrates the ability of HCl in antichlor removing top gas
It is stronger.
Table 1 is classified as the time of break-through of 8 experiment embodiments and the measured result contrast of a breakthrough chlorine content.
The measurement result of the time of break-through of table 1 and a breakthrough chlorine content
In antichlor it can be seen from the result listed by table 1 ratio of soft burnt lime stone and sodium carbonate to time of break-through and
Breakthrough chlorine content has obvious influence, while the high-temperature calcination time of soft burnt lime stone also influences the effect of dechlorination.
Compared with soft burnt lime stone, Na2CO3A certain amount of H can be generated when being reacted with HCl2O, so with higher one
Secondary breakthrough chlorine content, therefore, the proportioning of the two in antichlor influence dechlorination effect.
Although lime stone also has good dechlorination effect, studies have found that, because lime stone is after light-burned, part
To decompose, voidage substantially increases, and improves the dynamic conditions with HCl reactions, and dechlorination effect also makes moderate progress, therefore this
Soft burnt lime stone has been selected in invention.Limestone surfaces have certain amount micropore, and micro-pore diameter between 20~100 μm, put down by unit
The micropore order of magnitude is in 0~10 × 103 range intervals in square millimeter；Soft burnt lime stone has a more micropore of quantity, and micropore is straight
Footpath is in 0.1~20 μ m section, and the micropore order of magnitude is in 0~10 × 105 range intervals in unit square millimeter.Gas point
Son absorption has selective (absorption of abbreviation polarity), diameter and itself micropore in the easy adsorption gas molecule of antichlor surface micropore
Molecule similar in diameter.HCl molecular diameter is closer at 10 μm or so with soft burnt lime stone surface micropore diameter range,
According to polarity absorption principle, soft burnt lime stone is easier to adsorb the HCl molecules in blast furnace gas than lime stone, and then can improve
Lime stone antichlor breakthrough chlorine content.High-temperature calcination time gesture will necessarily influence to calcine effect, so as to influence the dechlorination of lime stone
Ability.
KOH also has certain dechlorination effect, but because with strong basicity and corrosivity, the moisture for easily absorbing surrounding is sent out
Raw deliquescence, the very strong aqueous slkali of alkalescence is formed, heavy corrosion can be caused to blast furnace gas pipeline and other auxiliary devices.Therefore originally
Invention designs with addition of KOH and soaks lime stone with it, then carry out again it is light-burned, to bring appropriate KOH into, improvement
Dechlorination effect.
By above-mentioned experiment and interpretation of result, the rational raw material selection of the application and preparation method are based on, is carried
A kind of application method suitable for blast furnace smelting process and the antichlor of equipment feature is gone out, metallurgical work can be advantageously applied to
Journey field, effectively improve the condition of work of equipment, the service life of extension device.
Claims (1)
1. a kind of application method of blast furnace gas antichlor, it is mainly realized by following steps：
One), it is used to prepare antichlor, wherein lime as raw material from industrial lime stone, commercial sodium carbonate and potassium hydroxide
The granularity of stone will be in below 5mm, and the granularity of sodium carbonate and potassium hydroxide will be in below 3mm；
Two) industrial lime stone, is soaked into 1h through potassium hydroxide solution as former state first, the concentration of wherein potassium hydroxide solution exists
10%-15%, then again by the lime stone after immersion be placed in 700 DEG C hot conditions calcine 1-2h；
Three), the soft burnt lime stone obtained after limestone calcination and sodium carbonate conventional ball milling techniques or other flouring technologies are ground
Carefully to less than 20 μm, according still further to percentage by weight soft burnt lime stone: sodium carbonate=30-40: 70-60 carries out dispensing, then carries out
Premix, incorporation time 10-15min, the powder mixed is continued to grind using flouring technology, until all powder
Granularity all below 80 μm；
Four), with the mixed-powder made, with addition of 3% bentonite, dry-mixed mixing, using disc balling machine, vaporific plus water is made
Ball, screens 3-10mm finished product bead, naturally dry or low temperature drying obtains the finished product of antichlor under the conditions of 100 DEG C；
Five), the antichlor product is placed in fixed container, allows blast furnace gas by fixed container, after container to be fixed
HCl gas concentrations are more than the antichlor more renewed again during 1ppm in blast furnace gas.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510118754.1A CN104774654B (en) | 2015-03-18 | 2015-03-18 | A kind of application method of blast furnace gas antichlor |
| JP2015124061A JP6073978B2 (en) | 2015-03-18 | 2015-06-19 | How to use blast furnace gas dechlorinating agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510118754.1A CN104774654B (en) | 2015-03-18 | 2015-03-18 | A kind of application method of blast furnace gas antichlor |
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| CN104774654A CN104774654A (en) | 2015-07-15 |
| CN104774654B true CN104774654B (en) | 2017-12-01 |
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|---|---|---|---|---|
| CN109234483B (en) * | 2018-10-30 | 2023-10-17 | 中冶京诚工程技术有限公司 | Blast furnace gas comprehensive treatment recovery device |
| CN113372963B (en) * | 2021-06-28 | 2024-04-02 | 中晶环境科技股份有限公司 | Dechlorinating agent suitable for blast furnace gas, preparation method and application of composition |
| CN114392643B (en) * | 2021-12-30 | 2022-09-23 | 北京北科环境工程有限公司 | Preparation method of dechlorinating agent for blast furnace gas |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62216628A (en) * | 1986-03-18 | 1987-09-24 | Nippon Kokan Kk <Nkk> | Equipment for neutralizing blast furnace gas |
| JPH062888B2 (en) * | 1986-10-15 | 1994-01-12 | 川崎製鉄株式会社 | Blast furnace gas recovery device |
| JPH10180089A (en) * | 1996-12-25 | 1998-07-07 | Kobe Steel Ltd | Waste gas treating material |
| JPH10237511A (en) * | 1997-02-24 | 1998-09-08 | Meidensha Corp | Operation of blast furnace |
| JPH10237509A (en) * | 1997-02-28 | 1998-09-08 | Meidensha Corp | Operation of blast furnace |
| JP2000296312A (en) * | 1999-04-12 | 2000-10-24 | Showa Chemical Industry Co Ltd | Waste gas treating agent |
| CN1114480C (en) * | 2001-07-31 | 2003-07-16 | 华东理工大学 | Dechlorinating agent for high-temp gas and its preparing process |
| CN101773768A (en) * | 2010-03-16 | 2010-07-14 | 长春惠工净化工业有限公司 | Dechlorinating agent used for removing HCl from gas by dry method and preparation method thereof |
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- 2015-03-18 CN CN201510118754.1A patent/CN104774654B/en active Active
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| JP2016176134A (en) | 2016-10-06 |
| CN104774654A (en) | 2015-07-15 |
| JP6073978B2 (en) | 2017-02-01 |
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