CN104726120A - Mixture for producing coke and method for producing coke by using same - Google Patents
Mixture for producing coke and method for producing coke by using same Download PDFInfo
- Publication number
- CN104726120A CN104726120A CN201410809726.XA CN201410809726A CN104726120A CN 104726120 A CN104726120 A CN 104726120A CN 201410809726 A CN201410809726 A CN 201410809726A CN 104726120 A CN104726120 A CN 104726120A
- Authority
- CN
- China
- Prior art keywords
- coke
- additive
- mixture
- resin
- coking coal
- 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.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/08—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form in the form of briquettes, lumps and the like
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/04—Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition
- C10B57/06—Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition containing additives
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/04—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of powdered coal
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Coke Industry (AREA)
Abstract
The invention provides a mixture for producing coke and a method for producing coke by using same. The method comprises preparing coking coal and an additive containing resin; mixing the coking coal with the additive in order to prepare the mixture; andputting the mixture into a coke oven and carbonizing the mixture in order to produce the coke so as to improve the reactivity of the coke.
Description
Technical field
The present invention relates to a kind of mixture for the production of coke and a kind of method using described mixture to produce coke, and more specifically, relate to a kind of mixture for the production of coke, it can improve the reactivity of coke, and a kind of method using described mixture to produce coke.
Background technology
The coke being used for blast furnace operating in Steel Plant carries out various pre-treatment step usually.Such as, coke is produced by the method comprised the following steps: be loaded in the carbonizing chamber of pit kiln by the coking coal (coal) of a large amount of (about 32 tons), under about 1200 DEG C or higher temperature, heat coking coal about 18 hours, discharge thereafter and cool in independent fire-protection equipment.
Recently, iron and steel industry is for reducing CO
2discharge also make a large amount of effort in case with minimizing greenhouse gases (GHG) CO
2effort be consistent.One of them uses to have to improve reactive hyperergy coke to reduce the ratio of blast furnace reductive agent, and it is used as the energy in blast furnace.
It is reported that hyperergy coke makes to produce the gasification quickening of carbon monoxide (CO) in the cold zone of blast furnace to cause the temperature reduction of insulation section, thus the motivating force improved for reducing is to bring the effect and raising reaction efficiency that reduce reductive agent ratio.At this, represented by the difference between the actual concentrations of gas and reduction equilibrium concentration for the motivating force of reducing.
The gasification activity of hyperergy coke by improving producing the catalyzer that adds in the process of hyperergy coke, and about can be used as the research well afoot of catalyzer of gasifying catalyst (such as basic metal, ferrum-based catalyst etc.).
Hyperergy coke is produced by following methods: by being sprayed on by liquid catalyst on the coke prepared in pit kiln or coke being immersed the rear interpolation catalyst method producing described hyperergy coke in catalyst solution to form film, or add catalyst method by adding catalyzer (alkalimetal oxide, oxides-containing iron) in the process being mixed for the coking coal producing coke produce described hyperergy coke in pit kiln before.But, because make the degraded of coke locally be accelerated by the sex region of catalyst activity, so cause the intensity of coke to reduce by the reactivity using such catalyzer to improve coke due to the catalyzer be present in coke matrix.
[prior art document]
[patent documentation]
(patent documentation 1) JP2011-202159A
Summary of the invention
The invention provides a kind of mixture for the production of coke and a kind of method using described mixture to produce coke, wherein said mixture can be used for producing the uniform coke of coke reactivity.
The present invention also provides a kind of mixture for the production of coke and a kind of method using described mixture to produce coke, and described mixture can improve the quality of coke by preventing the intensity of coke from reducing.
According to an exemplary embodiment, the mixture for the production of coke comprises: coking coal; And the additive containing resin.
Described additive can be the resin with phenyl ring.
Described resin can be resol (phenol resin).
The content of described additive can be about 3% to about 7%, based on the total weight of coking coal and additive.
Described additive can have the particle diameter making diameter be the part of 100 μm or less particle to be about 90% or more.
According to another exemplary, the method for producing coke comprises: prepare coking coal and wrap resiniferous additive; Mixing coking coal and additive are to prepare mixture; And mixture to be loaded in pit kiln and carbonized mixture to produce coke.
Described additive can be the resin with phenyl ring.
Described resin can be resol.
The addition of described additive can be about 3% to about 7%, based on the total weight of coking coal and additive.
Described additive can have the particle diameter making diameter be the part of 100 μm or less particle to be about 90% or more.
Accompanying drawing explanation
Described exemplary can be understood in more detail from the description done below in conjunction with accompanying drawing, wherein:
Fig. 1 is the schematic diagram that the method for producing coke according to an exemplary is shown;
Fig. 2 is the schema that the method for producing coke according to an exemplary is shown;
Fig. 3 is for illustrating the figure of the thermal property result obtained in the additive (resin material) of an exemplary by thermogravimetry (TG) analytical applications;
Fig. 4 is for illustrating the figure of the variable density of the coke produced according to an exemplary; And
Fig. 5 is for illustrating the figure of reactive experimental result of the coke produced according to an exemplary.
Embodiment
Hereinafter, specific embodiments is described in detail with reference to respective drawings.But form that the present invention can be different embodies, and should not be construed as and be confined to embodiment shown in this article.On the contrary, provide these embodiments to make the disclosure more comprehensively with complete, and scope of the present invention will be passed on to those skilled in the art fully.
Fig. 1 is the schematic diagram that the method for producing coke according to an exemplary is shown; Fig. 2 is the schema that the method for producing coke according to an exemplary is shown; Fig. 3 is for illustrating the figure of the thermal property result obtained in the additive (resin material) of an exemplary by thermogravimetry (TG) analytical applications.
With reference to figure 1 and Fig. 2, produce the method for coke according to exemplary to comprise and prepare coal (S100), prepare additive (S102), mixed with additive by Mixture Density Networks and be provided for producing the mixture (S110) of coke, the mixture of coal and additive be loaded in pit kiln also mixture (S120) described in carbonization and the red-hot coke of carbonization is transferred to fire-protection equipment, and then cool red-hot coke (S130).In this case, resin can be used as additive.
First, prepare coal be included in pulverizer the particle that is broken into by the coking coal powder being deposited in place and is of a size of 10mm or less and the coking coal of pulverizing is stored in storage hopper.In this case, various coking coal can be used as described coking coal.The coking coal pulverized can have the particle diameter making diameter be the part of the particle of 3mm or less to be about 80% to about 90%, and moisture content can be about 7% to about 11%.Be preferred containing less moisture in coking coal, and the moisture content being greater than as above advised scope can increase time for drying and cost.
Then, the various coking coal be stored in storage hopper are loaded in tempering tank in view of degree of coalification, caking index etc. with certain blending ratio, then mix wherein.
Subsequently, independent drying treatment can be carried out to remove moisture contained in coking coal, that is, the mixing raw material given off from tempering tank.
Resin can be used as additive, such as, can use the aromatic resin with phenyl ring, such as resol.In current embodiments, by using resin as the additive for improvement of coke reactivity, the specific surface area of coke increases, and makes coke have the low density basal body structure promoting reaction.Described additive can have the particle diameter making diameter be the part of 100 μm or less particle to be about 90% or more.The too small additive of particle diameter can cause the intensity of coke to reduce because local produces reactive; On the other hand, the additive that particle diameter is excessive causes reactive reduction owing to reducing with the contact area of coking coal.
In the material that can be used as additive, resol has characteristic as shown in table 1.
[table 1]
Resol has lurid pulverulence and has the particle diameter making diameter be the part of 75 μm or less particle to be about 95%.Resol contains the moisture being not less than about 0.8%, and its melt temperature is about 80 DEG C to about 90 DEG C.In addition, when resol keeps 30 minutes at 125 DEG C, it has the mobility (fluidity) of about 27mm to about 39mm.
In addition, to be analyzed by thermogravimetry and the thermal property result obtained is shown in Figure 3.In this article, thermogravimetry is the analytical procedure measuring material weight change in heat-processed, and thermal property measured by a nitrogen atmosphere under heating rate is for 3 DEG C/min to being up to maximum value 1000 DEG C.Can find out that the weight loss degree of resol reduces along with temperature increase from the result of thermogravimetric analysis.That is, can find out that the weight loss of resol is from room temperature to about 400 DEG C of relative smooth, and in the scope of about 400 DEG C to about 700 DEG C, significant weight loss is shown.In addition, can find out that the weight loss of resol is very level and smooth within the scope of about 700 DEG C to about 1000 DEG C.
The consumption of described additive can be about 3% to about 7%, based on the total weight of coal and additive.The additive being less than or greater than as above institute's suggested range due to consumption is little to the effect improving coke reactivity, is preferably suitably used in the additive in as above institute's suggested range.This describes again by the density describing the coke prepared by an exemplary subsequently and reactivity.
In this approach, the mixture of coal and additive is loaded in pit kiln, and under about 1100 DEG C or higher temperature, carbonized mixture is to obtain coke, is then transferred to by red-hot coke in cooling apparatus with cooling.
Hereinafter, the method assessed by producing described coke according to an exemplary is used description to and the EXPERIMENTAL EXAMPLE of the quality of coke of producing.
Fig. 4 is for illustrating the figure of the variable density of the coke produced according to an exemplary; Fig. 5 is for illustrating the figure of reactive experimental result of the coke produced according to an exemplary.
In this experiment, in coke test furnace, be mixed for producing coke coal (that is, Mixture Density Networks) and additive (such as resin etc.), to produce hyperergy coke, then assess the quality of the hyperergy coke produced.
By mixing the single coal of ten types and the Mixture Density Networks obtained for the production of coke, and be adjusted to the particle diameter having and make diameter be the part of the particle of 3mm or less to be about 82%.In addition, moisture content is about 9%.
Resol is used as additive, and when its amount by Mixture Density Networks and additive gross weight 0 % by weight, 5 % by weight and 10 % by weight change time add resol to make loading density (chargingdensity) for about 740kg/m
3.In this case, resol has lurid powder state and the part that diameter is about 75 μm or less particle is about 95% or more.
First, the density of each coke produced thus is measured.By the density using the generator picnometer of helium to measure coke.
Subsequently, the reactivity of coke is measured.Measured the reactivity of coke by following steps: pulverize a certain amount of coke by particle diameter, then 40 coke (sample) of the 200g being of a size of about 19mm to about 21mm are loaded to CO
2in reactor, and subsequently wherein at the temperature of 1100 DEG C with
flow keep sample 120 minutes.Subsequently, when sample is cooled to about 50 DEG C, weighs remaining sample and calculate speed of reaction.
[equation 1]
After the reactivity measuring coke, measure the density of remaining sample.
With reference to figure 4, before can finding out reaction, the density of coke reduces along with the consumption increase of additive.On the other hand, after reaction, the density of coke increases along with the consumption increase of additive.This is because when resin adds fashionable as additive, the main initial density forming low density matrix so that the coke promoting reaction reduces, but after making more low density substrate reaction be removed to make reaction, the density of coke increases on the contrary due to the reactivity improved.In addition, as shown in Figure 5, can find out that the speed of reaction (CRR) of coke increases along with the consumption increase of resin.Can find out that the reactivity of coke is improved and the density of coke increases along with the consumption increase of resin from these results.But when the amount with about 5 % by weight adds resin, the reactivity of coke increases up to about 10%; But when the amount with about 10 % by weight adds resin, the reactivity of coke increases up to about 1%.This represents that the improvement of coke gasification reaction speed and the consumption of resin do not have linear relationship.Therefore, can find out and in the scope of about 3% to about 7%, use resin to be preferred improving in the speed of reaction of coke and intensity by controlling its consumption.
According to exemplary for the production of the mixture of coke and use described mixture to produce the method for coke can to prevent at the quality deterioration producing the coke occurred in the process of hyperergy coke.That is, by using resin as the additive for improvement of coke reactivity, the specific surface area of coke increases on the whole, makes coke can have the low density basal body structure promoting reaction.Therefore, reaction can be carried out equably thus improve process efficiency on whole coke.
Although with reference to specific embodiments describe for the production of coke mixture and use described mixture to produce the method for coke, it is not limited to this.Therefore, those skilled in the art will understand when not departing from the spirit and scope of the present invention defined by the appended claims easily, can carry out various amendment and change to it.
Claims (10)
1., for the production of a mixture for coke, it comprises:
Coking coal; And
Additive containing resin.
2. the mixture of claim 1, wherein additive is the resin with phenyl ring.
3. the mixture of claim 2, wherein resin is resol.
4. the mixture of any one of claims 1 to 3, wherein the content of additive is about 3% to about 7%, based on the total weight of coking coal and additive.
5. the mixture of claim 4, wherein additive has the particle diameter making diameter be the part of 100 μm or less particle to be about 90% or more.
6. produce a method for coke, it comprises:
Prepare coking coal and wrap resiniferous additive;
Mixing coking coal and additive are to prepare mixture; And
Mixture to be loaded in pit kiln and carbonized mixture to produce coke.
7. the method for claim 6, wherein additive is the resin with phenyl ring.
8. the method for claim 7, wherein resin is resol.
9. the method for any one of claim 6 to 8, wherein the addition of additive is about 3% to about 7%, based on the total weight of coking coal and additive.
10. the method for claim 9, wherein additive has the particle diameter making diameter be the part of 100 μm or less particle to be about 90% or more.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020130161158A KR101550668B1 (en) | 2013-12-23 | 2013-12-23 | Mixture for manufacturing cokes and the method thereof |
| KR10-2013-0161158 | 2013-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104726120A true CN104726120A (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410809726.XA Pending CN104726120A (en) | 2013-12-23 | 2014-12-23 | Mixture for producing coke and method for producing coke by using same |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101550668B1 (en) |
| CN (1) | CN104726120A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110819364A (en) * | 2019-10-30 | 2020-02-21 | 鞍钢股份有限公司 | Method for preparing metallurgical coke |
| CN113874472A (en) * | 2019-03-08 | 2021-12-31 | 塔塔钢铁有限公司 | Compounds, compositions and methods for utilizing non-coking coal |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105316016B (en) * | 2014-07-31 | 2017-10-31 | 宝山钢铁股份有限公司 | A kind of method that coal produces coke with waste and old phenoplasts co carbonization |
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| JP3376071B2 (en) * | 1994-01-27 | 2003-02-10 | 関西熱化学株式会社 | Coke production method |
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2013
- 2013-12-23 KR KR1020130161158A patent/KR101550668B1/en active IP Right Grant
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| JPS4910321B1 (en) * | 1970-09-14 | 1974-03-09 | ||
| JPH1112575A (en) * | 1997-06-27 | 1999-01-19 | Nkk Corp | Production of coke for blast furnace |
| JP2001200263A (en) * | 2000-01-17 | 2001-07-24 | Nippon Steel Corp | Process for preparing blast furnace coke using waste plastic |
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| CN1923954A (en) * | 2006-09-14 | 2007-03-07 | 中国科学院兰州化学物理研究所 | Catalytic cracking coking mother granule |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113874472A (en) * | 2019-03-08 | 2021-12-31 | 塔塔钢铁有限公司 | Compounds, compositions and methods for utilizing non-coking coal |
| CN110819364A (en) * | 2019-10-30 | 2020-02-21 | 鞍钢股份有限公司 | Method for preparing metallurgical coke |
| CN110819364B (en) * | 2019-10-30 | 2021-10-22 | 鞍钢股份有限公司 | Method for preparing metallurgical coke |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101550668B1 (en) | 2015-09-07 |
| KR20150073450A (en) | 2015-07-01 |
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Application publication date: 20150624 |