CN102031128A - Coal gas-tar-semicoke cogeneration method - Google Patents
Coal gas-tar-semicoke cogeneration method Download PDFInfo
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- CN102031128A CN102031128A CN2009102353331A CN200910235333A CN102031128A CN 102031128 A CN102031128 A CN 102031128A CN 2009102353331 A CN2009102353331 A CN 2009102353331A CN 200910235333 A CN200910235333 A CN 200910235333A CN 102031128 A CN102031128 A CN 102031128A
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Abstract
The invention discloses a coal gas-tar-semicoke cogeneration method, relating to a coal converting technology. The method comprises the following steps of: adding pulverized coal into a pyrolysis chamber for pyrolytic reaction to generate semicoke and pyrolysis gas containing tar; leading out the pyrolysis gas from the upper part of the pyrolysis chamber, wherein the semicoke enters a pneumatic lower return feeder from the bottom of the pyrolysis chamber; discharging one part of the semicoke as a product through the lower return feeder; feeding the other part of the semicoke into a combustion chamber through the return feeder for combustion; introducing the combusted flue gas into an after-burning type waste heat boiler for after burning; adding a working medium of the waste heat boiler; and drying the pulverized coal before added into the pyrolysis chamber by using the sensible heat of the flue gas and the heat released by afterburning. With the method, the waste heat of the system can be fully utilized, the energy can be saved, the system can stably operate and the hazard-free treatment for the discharge is realized.
Description
Technical field
The present invention relates to coal transformation technology field.
Background technology
In the existing coal resources of China, the higher bituminous coal of volatile matter accounts for 78.8%, and brown coal account for 3.6%, if these middle and high volatile component coals can access higher value application, will have great importance to China's power supply.
The solid heat carrier pyrolysis method can be extracted volatile matter and easy cracking section in the coal by pyrolysis of coal system oil, produces tar, is the good pyrolysis oil preparation method of a kind of how appropriate.Simultaneously, the semicoke that produces in the pyrolysis oil preparation process also can be used as one of product, from material returning device discharge down, and outward transport after cooling off.Simultaneously, because pyrolysis chamber's temperature of pyrolysis oil preparation processing requirement is lower, the combustion chamber excess air factor has a large amount of CO and unburned carbon usually less than 1 in the flue gas, by afterburning, can make these combustiblecomponents burning heat releases in the flue gas, heat recovery.Chinese patent application 200710119476.7 " solid heat carrier rapid pyrolysis method and device " and Chinese patent application 200810222959.4 " a kind of pyrolysis oil preparation method of convey bed " disclose a kind of method and device and a kind of method of carrying a pyrolysis oil preparation of solid heat carrier rapid pyrolysis respectively, can realize coal gas-tar-semicoke coproduction.
But, in above-mentioned two kinds of methods, go into moisture in the system by the ribbing, in from pyrolysis gas, isolating the receipts oil ring joint of tar, be collected the most at last, produce the waste water that contains hazardous and noxious substances such as phenols, be difficult to handle.And the water content of going into the stove coal is high more, and the waste water of generation is also many more.Simultaneously, after fine coal joins in the pyrolysis oven, the moisture in the coal will together be heated, in receiving oily process, be cooled again afterwards, this part heat that is used for adding the moisture of hot coal is actually and has been wasted, thereby the water content of coal is high more, and the system thermal of waste is also many more.In addition, because above-mentioned two kinds of methods application all is fine coal, particle diameter mainly is distributed between 0～10mm, particularly between 0～8mm, if the water ratio in the coal is too high, also will cause the coal supply system operation not smooth, coal bunker generation chute blockage.Therefore, need carry out drying to the fine coal that adds pyrolysis oven, the water ratio when reduction fine coal is gone into stove.If coal is carried out drying but use external thermal source, will improve system operation cost, reduce economy.
Summary of the invention
The purpose of this invention is to provide a kind of system's waste heat that utilizes, the fine coal that adds pyrolysis oven is carried out drying, receive the waste water that oily process produces with remarkable minimizing, and the coal gas-tar-semicoke co-production that waste water is carried out harmless treatment.
For achieving the above object, technical solution of the present invention is as follows:
A kind of coal gas-tar-semicoke co-production adds fine coal and carries out pyrolytic reaction in the pyrolysis chamber, produces semicoke and contains the pyrolysis gas of tar; Pyrolysis gas is drawn from top, pyrolysis chamber, semicoke enters the following material returning device of pneumatic type from the bottom, pyrolysis chamber, a part is as the material returning device discharge down of product warp, material returning device is sent into and is burnt in the combustion chamber under another part warp, the solid thermal carriers that the burning back forms are separated from flue gas by the separator that top, combustion chamber links to each other, the last material returning device of the pneumatic type above the pyrolysis chamber is sent into the pyrolysis chamber, for pyrolytic reaction provides heat; Pyrolysis chamber and bottom, combustion chamber all feed fluidizing agent; Flue gas is drawn from the separator gas outlet, feeds the compensation combustion type waste heat boiler, carries out afterburning, with gaseous combustible composition in the flue gas and solid combustible composition after-flame, and the working medium of the heat heating waste heat boiler that burning discharges; Utilize the sensible heat of flue gas and the heat that afterburning discharges, the fine coal before the adding pyrolysis chamber is carried out drying.
Described coal gas-tar-semicoke co-production, it comprises step:
A) isolating flue gas in the separator is sent into waste heat boiler, discharge after the working medium in the heating waste heat boiler, the flue gas of discharging feeds flue gas the fluidized bed type moisture eliminator as fluidizing agent and drying source again through high-temperature dust removal, and the fine coal that adds the pyrolysis chamber is carried out drying;
B) or simultaneously, will be in waste heat boiler heated working medium, feed the fluidized bed type moisture eliminator, as the contact drying thermal source, the fine coal that adds the pyrolysis chamber is carried out drying;
C) or, will be in waste heat boiler heated working medium feeds rotary-drum drier, as drying source; Fine coal is sent into rotary-drum drier earlier and is carried out drying before adding the pyrolysis chamber;
D) through A), B) or C) go on foot one of them or the dried fine coal of array mode, send into the pyrolysis chamber again.
Described coal gas-tar-semicoke co-production, its described A) flue-gas temperature that waste heat boiler is discharged in the step is 105～400 ℃.
Described coal gas-tar-semicoke co-production, the working medium in its described waste heat boiler is water, steam or thermal oil.
Described coal gas-tar-semicoke co-production after its described pyrolysis gas that contains tar is drawn from top, pyrolysis chamber, is separated tar from pyrolysis gas, obtain tar and coal gas product.
Described coal gas-tar-semicoke co-production, it is described separates tar from pyrolysis gas, by spray cooling, ash disposal, cool off, catch oily four steps in sequence indirectly and carry out.
Described coal gas-tar-semicoke co-production, its described spray cooling step and the waste water of catching oily step generation feed in the waster water incinerator and burn, and incinerator smoke purifies the back discharge.
Described coal gas-tar-semicoke co-production, its described spray cooling step and the waste water of catching oily step generation feed in the compensation combustion type waste heat boiler and burn, and exhaust-heat boiler flue gas purifies the back discharge.
Described coal gas-tar-semicoke co-production, the incineration temperature of its described waster water incinerator or compensation combustion type waste heat boiler is 950～1100 ℃.
Described coal gas-tar-semicoke co-production feeds coal gas as auxiliary fuel in its described waster water incinerator or the compensation combustion type waste heat boiler.
The abundant recycling system waste heat of the inventive method carried out drying before coal adds pyrolysis oven, and significantly reduced and received the harmful waste water that produces in the oily process, conserve energy, and help improving the operation stability of system economy and coal supply system; By high temperature incineration, innoxious burning has been handled and has been received the harmful waste water that produces in the oily process simultaneously.
Description of drawings
Fig. 1 is the synoptic diagram of a kind of coal gas-tar of the present invention-semicoke co-production embodiment 1;
Fig. 2 is the synoptic diagram of a kind of coal gas-tar of the present invention-semicoke co-production embodiment 2;
Fig. 3 is the synoptic diagram of a kind of coal gas-tar of the present invention-semicoke co-production embodiment 3;
Fig. 4 is the synoptic diagram of a kind of coal gas-tar of the present invention-semicoke co-production embodiment 4.
Embodiment
The principle of the inventive method is:
The semicoke that pyrolysis of coal produces burns in the combustion chamber, produces pyritous lime-ash and the mixture that does not fire semicoke, i.e. solid thermal carriers; Solid thermal carriers flow between combustion chamber and pyrolysis chamber, and constantly the heat that coal-char combustion is produced is brought the pyrolysis chamber into from the combustion chamber, joins the coal of pyrolysis chamber, makes it to take place pyrolytic reaction, produce the pyrolysis gas that contains tar.Semicoke enters down material returning device from the bottom, pyrolysis chamber, and a part of warp material returning device is down sent the combustion chambers burn heat release back to, and another part, supplies outward as product after the cooling of process cooling apparatus by material returning device discharge down.
The productive rate of tar depends primarily on the temperature of pyrolysis chamber, and pyrolysis chamber's medial temperature is in 500～650 ℃ of scopes the time, and particularly 550～580 ℃ the time, the coal-tar middle oil content of pyrolysis gas is higher.The part semicoke that pyrolysis produces is discharged as product, only other part semicoke is sent into perfect combustion in the combustion chamber, and the air capacity that feeds the combustion chamber is less than the required theoretical air requirement of semicoke perfect combustion, make semicoke partial combustion in the combustion chamber, pyrolysis chamber's temperature is remained in the above-mentioned scope.
Like this, because the combustion chamber excess air factor less than 1, has a large amount of CO and unburned carbon in the flue gas, therefore flue gas is fed the compensation combustion type waste heat boiler, bubbling air carries out afterburning simultaneously, makes CO and unburned carbon burning heat release in the flue gas, heat recovery is used for the drying of pyrolysis oil preparation with coal.
The drying of coal can adopt fluidized bed type moisture eliminator or rotary-drum drier.
When adopting the fluidized bed type moisture eliminator, owing to be suitable for coal, particularly brown coal and the bituminous coal of this technology, fugitive constituent begins to separate out in a large number more than 300 ℃ the time usually, therefore must control moisture eliminator bed temperature, and can not be too high; Simultaneously, the flue-gas temperature of process afterburning is usually more than 800 ℃, and existing high-temperature dust removal equipment can't bear, and need lower the temperature earlier.Therefore, by the heat absorption of working medium in the waste heat boiler, make flue-gas temperature drop to 105～400 ℃.Simultaneously, the working medium that flue gas heats in waste heat boiler also can feed in the fluidized bed dryer, as second drying source.
When adopting rotary-drum drier, the working medium of directly using waste heat boiler is as drying source.The working medium of waste heat boiler can be water, steam or thermal oil.
Compensation combustion type waste heat boiler and coal dryer expellant gas all pass through and purify the back discharging.
After the pyrolysis gas that contains tar that pyrolytic reaction produces is drawn from top, pyrolysis chamber, need receive oil,, obtain tar and coal gas product from pyrolysis gas so that tar is separated.Receive oily process by spray cooling, ash disposal, cool off, catch oily four steps in sequence indirectly and form.At first by spray cooling pyrolysis gas, water-soluble composition of the part in the pyrolysis gas and part dust are discharged with spray water, become waste water; And then carry out indirectly cooled again and catch hazardous and noxious substances such as containing phenols in the waste water that oily process produces, feed and burn in waster water incinerator or the compensation combustion type waste heat boiler; For the hazardous and noxious substances in the waste water is decomposed fully, need to guarantee that the incineration temperature of waster water incinerator or compensation combustion type waste heat boiler is between 950～1100 ℃; Because the waste water calorific value is lower, when the incineration temperature of waster water incinerator or compensation combustion type waste heat boiler did not reach 950～1100 ℃, the coal gas that also need introduce the generation of a small amount of system was as auxiliary fuel.Like this, waste water is through high temperature incineration, and phenols will decompose fully, thereby realizes the harmless treatment of waste water.The flue gas that incinerator produces can discharge after purifying.
Below enumerating four embodiment is elaborated to method of the present invention.See also Fig. 1,2,3,4, wherein, pyrolysis chamber 1, down material returning device 2, combustion chamber 3, separator 4, go up material returning device 5, compensation combustion type waste heat boiler 6, fluidized bed type moisture eliminator 7, spray cooling 8, ash disposal 9, cool off 10 indirectly, catch oil 11, rotary-drum drier 12, waster water incinerator 13, air A, fine coal C, flue gas F, semicoke K, tar T, pyrolysis gas G, steam S, water W, waste water L, thermal oil O.
As shown in Figure 1, coal gas-tar of the present invention-semicoke co-production will carry out pyrolytic reaction in the fine coal C adding pyrolysis chamber 1, produce semicoke K and the pyrolysis gas G that contains tar T; Pyrolysis gas G draws on 1 top from the pyrolysis chamber, 1 bottom enters the following material returning device 2 of pneumatic type to semicoke K from the pyrolysis chamber, a part is as material returning device 2 discharges down of product warp, another part warp material returning device 2 is down sent into burning in the combustion chamber 1, the separator 4 that the solid thermal carriers that the burning back forms are linked to each other with 3 tops, combustion chamber is separated from flue gas F, the last material returning device 5 of the pneumatic type of 1 top is sent into pyrolysis chamber 1 through the pyrolysis chamber, for pyrolytic reaction provides heat; Pyrolysis chamber 1 and bottom, burning Room 3 all feed fluidizing agent; Flue gas F draws from separator 4 pneumatic outlets, feeds compensation combustion type waste heat boiler 6, and bubbling air A carries out afterburning simultaneously, with gaseous combustible composition among the flue gas F and solid combustible composition after-flame, and working medium---the water W of the heat heating waste heat boiler 6 that burning discharges; Utilize the sensible heat of flue gas F and the heat that afterburning discharges, before fine coal C adds pyrolysis chamber 1, it is carried out drying.
Wherein, utilize the concrete mode of the sensible heat of flue gas and the dry fine coal of heat that afterburning discharges to be, water W in the waste heat boiler 6 has absorbed the heat that flue gas F discharges, make flue gas F discharge waste heat boiler 6 and behind high-temperature dust removal, be cooled to 105～200 ℃, be preferably 150 ℃, again flue gas fed fluidized bed type moisture eliminator 7 as fluidizing agent and drying source; The fine coal C of particle diameter between 0～6mm sent into fluidized bed type moisture eliminator 7 earlier carry out drying, send into pyrolysis chamber 1 again.
After the pyrolysis gas G that contains tar T draws from 1 top, pyrolysis chamber, tar T is separated from pyrolysis gas G, obtain tar T and do not contain the pyrolysis gas G (being the coal gas product) of tar; Concrete steps comprise spray cooling 8, ash disposal 9, cool off 10 indirectly, catch oil 11.The spray cooling step feeds in the compensation combustion type waste heat boiler 6 with the waste water L that catches oily step generation, burns under 950 ℃, and the hazardous and noxious substances such as phenols among the waste water L are decomposed.
The working medium of waste heat boiler 6 can also be steam in the present embodiment.
Embodiment 2
As shown in Figure 2, coal gas-tar of the present invention-semicoke co-production will carry out pyrolytic reaction in the fine coal C adding pyrolysis chamber 1, produce semicoke K and the pyrolysis gas G that contains tar T; Pyrolysis gas G draws on 1 top from the pyrolysis chamber, 1 bottom enters the following material returning device 2 of pneumatic type to semicoke K from the pyrolysis chamber, a part is as material returning device 2 discharges down of product warp, another part warp material returning device 2 is down sent into burning in the combustion chamber 1, the separator 4 that the solid thermal carriers that the burning back forms are linked to each other with 3 tops, combustion chamber is separated from flue gas F, the last material returning device 5 of the pneumatic type of 1 top is sent into pyrolysis chamber 1 through the pyrolysis chamber, for pyrolytic reaction provides heat; Pyrolysis chamber 1 and bottom, burning Room 3 all feed fluidizing agent; Flue gas F draws from separator 4 pneumatic outlets, feeds compensation combustion type waste heat boiler 6, and bubbling air A carries out afterburning simultaneously, with gaseous combustible composition among the flue gas F and solid combustible composition after-flame, and working medium---the steam S of the heat heating waste heat boiler 6 that burning discharges; Utilize the sensible heat of flue gas F and the heat that afterburning discharges, before fine coal C adds pyrolysis chamber 1, it is carried out drying.
Wherein, utilize the concrete mode of the sensible heat of flue gas and the dry fine coal of heat that afterburning discharges to be, steam S in the waste heat boiler 6 has absorbed the heat that flue gas F discharges, make flue gas F discharge waste heat boiler 6 and behind high-temperature dust removal, be cooled to 200～400 ℃, be preferably 280 ℃, again flue gas F fed from fluidized bed type moisture eliminator 7 bottoms, as fluidizing agent and drying source; To in waste heat boiler 6, feed set heat exchange coil in the fluidized bed dryer 7 by heated steam S simultaneously, as the contact drying thermal source.The fine coal C of particle diameter between 0～8mm sent into fluidized bed type moisture eliminator 7 earlier carry out drying, send into pyrolysis chamber 1 again.
After the pyrolysis gas G that contains tar T draws from 1 top, pyrolysis chamber, tar T is separated from pyrolysis gas G, obtain tar T and do not contain the pyrolysis gas G (being the coal gas product) of tar; Concrete steps comprise spray cooling 8, ash disposal 9, cool off 10 indirectly, catch oil 11.The spray cooling step feeds in the compensation combustion type waste heat boiler 6 with the waste water L that catches oily step generation, burns under 1100 ℃, and the hazardous and noxious substances such as phenols among the waste water L are decomposed; When if the incineration temperature of waste heat boiler 6 is difficult to guarantee to reach 950 ℃, a small amount of coal gas G is fed in the waste heat boiler 6 as auxiliary fuel, to guarantee the decomposition of objectionable impurities among the waste water L.
The working medium of the waste heat boiler 6 in the present embodiment can also be water or thermal oil.
As shown in Figure 3, coal gas-tar of the present invention-semicoke co-production will carry out pyrolytic reaction in the fine coal C adding pyrolysis chamber 1, produce semicoke K and the pyrolysis gas G that contains tar T; Pyrolysis gas G draws on 1 top from the pyrolysis chamber, 1 bottom enters the following material returning device 2 of pneumatic type to semicoke K from the pyrolysis chamber, a part is as material returning device 2 discharges down of product warp, another part warp material returning device 2 is down sent into burning in the combustion chamber 1, the separator 4 that the solid thermal carriers that the burning back forms are linked to each other with 3 tops, combustion chamber is separated from flue gas F, the last material returning device 5 of the pneumatic type of 1 top is sent into pyrolysis chamber 1 through the pyrolysis chamber, for pyrolytic reaction provides heat; Pyrolysis chamber 1 and bottom, burning Room 3 all feed fluidizing agent; Flue gas F draws from separator 4 pneumatic outlets, feeds compensation combustion type waste heat boiler 6, and bubbling air A carries out afterburning simultaneously, with gaseous combustible composition among the flue gas F and solid combustible composition after-flame, and working medium---the thermal oil O of the heat heating waste heat boiler 6 that burning discharges; Utilize the sensible heat of flue gas F and the heat that afterburning discharges, before fine coal C adds pyrolysis chamber 1, it is carried out drying.
Wherein, utilize the concrete mode of the sensible heat of flue gas and the dry fine coal of heat that afterburning discharges to be, the thermal oil O in the waste heat boiler 6 absorbs the heat that flue gas F discharges, and is heated the back and feeds rotary-drum drier 12 as drying source; After the fine coal C of 0～10mm sent into rotary-drum drier 12 earlier and carry out drying, send into pyrolysis chamber 1 again.
After the pyrolysis gas G that contains tar T draws from 1 top, pyrolysis chamber, tar T is separated from pyrolysis gas G, obtain tar T and do not contain the pyrolysis gas G (being the coal gas product) of tar; Concrete steps comprise spray cooling 8, ash disposal 9, cool off 10 indirectly, catch oil 11.The spray cooling step feeds in the compensation combustion type waste heat boiler 6 with the waste water L that catches oily step generation, burns under 1000 ℃, and the hazardous and noxious substances such as phenols among the waste water L are decomposed, and discharges after waste heat boiler 6 gas cleanings; For guaranteeing incineration temperature, a small amount of coal gas can be fed in the compensation combustion type waste heat boiler 6 as auxiliary fuel.
Waste heat boiler working medium in the present embodiment also can be water or steam.
Embodiment 4
Spray cooling step among aforementioned three kinds of embodiment and the wastewater treatment mode of catching oily step generation, replaceable for feeding burning disposal in the waster water incinerator 13, incineration temperature is 950～1100 ℃, discharges after incinerator 13 gas cleanings; For guaranteeing incineration temperature, can in waster water incinerator 13, feed a small amount of coal gas as auxiliary fuel.
Fig. 4 shows the synoptic diagram that the waste water L among the embodiment 1 is fed the embodiment that burns in the waster water incinerator 13.
Claims (10)
1. coal gas-tar-semicoke co-production adds fine coal and carries out pyrolytic reaction in the pyrolysis chamber, produces semicoke and contains the pyrolysis gas of tar; Pyrolysis gas is drawn from top, pyrolysis chamber, semicoke enters the following material returning device of pneumatic type from the bottom, pyrolysis chamber, a part is as the material returning device discharge down of product warp, material returning device is sent into and is burnt in the combustion chamber under another part warp, the solid thermal carriers that the burning back forms are separated from flue gas by the separator that top, combustion chamber links to each other, the last material returning device of the pneumatic type above the pyrolysis chamber is sent into the pyrolysis chamber, for pyrolytic reaction provides heat; Pyrolysis chamber and bottom, combustion chamber all feed fluidizing agent; Flue gas is drawn from the separator gas outlet, feeds the compensation combustion type waste heat boiler, carries out afterburning, with gaseous combustible composition in the flue gas and solid combustible composition after-flame, and the working medium of the heat heating waste heat boiler that burning discharges; It is characterized in that: utilize the sensible heat of flue gas and the heat that afterburning discharges, the fine coal before the adding pyrolysis chamber is carried out drying.
2. by the described coal gas-tar of claim 1-semicoke co-production, it is characterized in that: comprise step:
A) isolating flue gas in the separator is sent into waste heat boiler, discharge after the working medium in the heating waste heat boiler, the flue gas of discharging feeds flue gas the fluidized bed type moisture eliminator as fluidizing agent and drying source again through high-temperature dust removal, and the fine coal that adds the pyrolysis chamber is carried out drying;
B) or simultaneously, will be in waste heat boiler heated working medium, feed the fluidized bed type moisture eliminator, as the contact drying thermal source, the fine coal that adds the pyrolysis chamber is carried out drying;
C) or, will be in waste heat boiler heated working medium feeds rotary-drum drier, as drying source; Fine coal is sent into rotary-drum drier earlier and is carried out drying before adding the pyrolysis chamber;
D) through A), B) or C) go on foot one of them or the dried fine coal of array mode, send into the pyrolysis chamber again.
3. by the described coal gas-tar of claim 2-semicoke co-production, it is characterized in that described A) waste heat boiler is discharged in the step flue-gas temperature is 105～400 ℃.
4. by claim 1 or 2 described coal gas-tar-semicoke co-production, it is characterized in that: the working medium in the described waste heat boiler is water, steam or thermal oil.
5. by the described coal gas-tar of claim 1-semicoke co-production, it is characterized in that: after the described pyrolysis gas that contains tar is drawn from top, pyrolysis chamber, tar is separated from pyrolysis gas, obtained tar and coal gas product.
6. by the described coal gas-tar of claim 5-semicoke co-production, it is characterized in that, described tar is separated from pyrolysis gas, by spray cooling, ash disposal, cool off, catch oily four steps in sequence indirectly and carry out.
7. by the described coal gas-tar of claim 6-semicoke co-production, it is characterized in that described spray cooling step and the waste water of catching oily step generation feed in the waster water incinerator and burn, incinerator smoke purifies the back discharge.
8. by the described coal gas-tar of claim 6-semicoke co-production, it is characterized in that described spray cooling step and the waste water of catching oily step generation feed in the compensation combustion type waste heat boiler and burn, exhaust-heat boiler flue gas purifies the back discharge.
9. by claim 7 or 8 described coal gas-tar-semicoke co-production, it is characterized in that the incineration temperature of described waster water incinerator or compensation combustion type waste heat boiler is 950～1100 ℃.
10. by claim 7 or 8 described coal gas-tar-semicoke co-production, it is characterized in that, feed coal gas in described waster water incinerator or the compensation combustion type waste heat boiler as auxiliary fuel.
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| CN102585913A (en) * | 2012-03-12 | 2012-07-18 | 浙江大学 | Coal gas, tar, semi-coke and steam poly-generation method based on fluidized bed pyrolysis technology |
| CN102604657A (en) * | 2012-01-18 | 2012-07-25 | 大连理工大学 | Method for comprehensively using high-temperature smoke containing semi-coke powder |
| CN108085031A (en) * | 2017-12-29 | 2018-05-29 | 浙江百能科技有限公司 | The process and device of a kind of pyrolysis of coal high heating value gas and high heating value block coke |
| CN108559535A (en) * | 2017-12-29 | 2018-09-21 | 浙江百能科技有限公司 | A kind of Multi-stage heat-exchanging device for pyrolysis of coal high heating value gas and high heating value block coke |
| CN108841401A (en) * | 2018-06-27 | 2018-11-20 | 辽宁东大粉体工程技术有限公司 | Using the industrial waste salt processing unit and application method of radiant tube type carbonization dore furnace |
| CN112063408A (en) * | 2020-09-01 | 2020-12-11 | 中国科学院工程热物理研究所 | High-efficient low-nitrogen combustion coupling phenol-containing waste water zero discharging equipment of coal pyrolysis semicoke |
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- 2009-09-30 CN CN2009102353331A patent/CN102031128A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102604657A (en) * | 2012-01-18 | 2012-07-25 | 大连理工大学 | Method for comprehensively using high-temperature smoke containing semi-coke powder |
| CN102585913A (en) * | 2012-03-12 | 2012-07-18 | 浙江大学 | Coal gas, tar, semi-coke and steam poly-generation method based on fluidized bed pyrolysis technology |
| CN102585913B (en) * | 2012-03-12 | 2013-11-06 | 浙江大学 | Coal gas, tar, semi-coke and steam poly-generation method based on fluidized bed pyrolysis technology |
| CN108085031A (en) * | 2017-12-29 | 2018-05-29 | 浙江百能科技有限公司 | The process and device of a kind of pyrolysis of coal high heating value gas and high heating value block coke |
| CN108559535A (en) * | 2017-12-29 | 2018-09-21 | 浙江百能科技有限公司 | A kind of Multi-stage heat-exchanging device for pyrolysis of coal high heating value gas and high heating value block coke |
| CN108559535B (en) * | 2017-12-29 | 2021-12-14 | 浙江百能科技有限公司 | Multi-stage heat exchange device for preparing high-calorific-value coal gas and high-calorific-value lump coke by coal pyrolysis |
| CN108841401A (en) * | 2018-06-27 | 2018-11-20 | 辽宁东大粉体工程技术有限公司 | Using the industrial waste salt processing unit and application method of radiant tube type carbonization dore furnace |
| CN112063408A (en) * | 2020-09-01 | 2020-12-11 | 中国科学院工程热物理研究所 | High-efficient low-nitrogen combustion coupling phenol-containing waste water zero discharging equipment of coal pyrolysis semicoke |
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Application publication date: 20110427 |