CN106190420A - A kind of method of low-order coal fixed carbon content in raising - Google Patents
A kind of method of low-order coal fixed carbon content in raising Download PDFInfo
- Publication number
- CN106190420A CN106190420A CN201610538156.4A CN201610538156A CN106190420A CN 106190420 A CN106190420 A CN 106190420A CN 201610538156 A CN201610538156 A CN 201610538156A CN 106190420 A CN106190420 A CN 106190420A
- Authority
- CN
- China
- Prior art keywords
- low
- grain size
- small grain
- high pressure
- carbon content
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L9/00—Treating solid fuels to improve their combustion
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
- C10L5/06—Methods of shaping, e.g. pelletizing or briquetting
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L9/00—Treating solid fuels to improve their combustion
- C10L9/02—Treating solid fuels to improve their combustion by chemical means
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2230/00—Function and purpose of a components of a fuel or the composition as a whole
- C10L2230/22—Function and purpose of a components of a fuel or the composition as a whole for improving fuel economy or fuel efficiency
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Engineering & Computer Science (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of method of low-order coal fixed carbon content in raising, comprise the steps: that middle low-order coal raw ore process is crushed, grinds, sieves by (1), obtain small grain size raw coal powder；(2) small grain size raw coal powder is carried out high pressure base leaching；(3) the small grain size raw coal powder soaked through high pressure base is filtered and washs；(4) will dry through the small grain size raw coal powder of washing.Advantage is for using high pressure alkaline leaching, under environment under high pressure, middle low-order coal is immersed in the alkaline solution of low concentration, ash in coal is dissolved in alkali liquor, and carbon does not dissolves in alkali liquor, and alkali leaching is filtered after terminating, the ash being dissolved in alkali liquor separates with the carbon in coal, thus it being effectively increased the phosphorus content of middle low-order coal, whole processing procedure is not related to pyroreaction, does not the most use the alkali liquor of high concentration, therefore energy consumption is relatively low, is conducive to controlling cost.
Description
Technical field
The present invention relates to coal purification technique field, be specifically related to a kind of method of low-order coal fixed carbon content in raising.
Background technology
The reserves third place in the world of China's coal-mine because its economic price and abundant storage to become society main
The energy, be the most important energy in China, a kind of non-renewable strategic resource, be widely used in the modern life and work
Industry produces.
Although coal in China storage capacity is enriched, but in the reserves that exploration confirms, scrutinizing reserves and only account for 30%, fat coal is few
Middle low-order coal is many, and the degree of coalification of middle low-order coal is relatively low, can produce substantial amounts of ash in combustion, causes middle low-order coal whole
The caloric value of body is relatively low.Therefore, it should seek the scheme of centering low-order coal upgrading, the quality of low-order coal in improvement, carry high, normal, basic
The caloric value of rank coal.
In prior art, centering low-order coal processes most common method is pyrolysismethod, i.e. " dry distilling " or thermal decomposition, pyrolysis
Refer to coal completely cutting off air or time continuous heating is to higher temperature under inert gas conditions, the series of physical chemistry occurred
And chemical reaction.Coal can crosslink bond fission, product restructuring and secondary response in the process, finally gives gas (coal
Gas), the product such as liquid (tar) and solid (semicoke).By pyrolysis, the caloric value of middle low-order coal can be significantly improved.But
Being to use pyrolysismethod to need the temperature of consersion unit probably at about 600 DEG C, in whole pyrolytic process, energy consumption is higher, produces into
Originally higher.Researcher also been proposed alkaline leaching later, will low-order coal be immersed in the aqueous slkali of high concentration to reduce coal
Dust ability, but the alkaline concentration that the method on the one hand uses is high, and on the other hand reaction temperature is the highest, can increase equally
Energy consumption and cost.
It would therefore be highly desirable to solution the problems referred to above.
Summary of the invention
Goal of the invention: it is an object of the invention to provide a kind of use high pressure alkaline leaching to improve in low-order coal fixed carbon content
Method.
Technical scheme: method of the present invention, comprises the steps: that middle low-order coal raw ore process is crushed, grinds by (1)
Mill, screening, obtain small grain size raw coal powder；(2) small grain size raw coal powder is carried out high pressure base leaching；(3) soak through high pressure base
Small grain size raw coal powder filter and wash；(4) will dry through the small grain size raw coal powder of washing.
Wherein, in step (2), the high-pressure of described high pressure base leaching is 1～20MPa, and preferably pressure is 8～12MPa.Alkali
Leaching temperature is 50～150 DEG C, and preferable temperature is 60～80 DEG C.NaOH/KOH/NaHCO is used during high pressure base leaching3As alkali
Property solution, the mass fraction of alkali liquor is 10～40%, and the preferred mass fraction of alkali liquor is 25～30%.Meanwhile, high pressure base leaching makes
The mass ratio of alkaline solution and small grain size raw coal powder be 1～10:1.Additionally, the alkaline solution that high pressure base leaching uses uses
Quick lime regenerates.
In step (1), small grain size raw coal powder granularity 50-200 mesh.
Beneficial effect: compared with prior art, it has the beneficial effect that the present invention uses high pressure alkaline leaching, at height to the present invention
Middle low-order coal being immersed in the alkaline solution of low concentration under pressure ring border, the ash in coal is dissolved in alkali liquor, and carbon does not dissolves in alkali liquor, alkali
Leaching is filtered after terminating, and the ash being dissolved in alkali liquor separates with the carbon in coal, thus is effectively increased the phosphorus content of middle low-order coal, whole
Processing procedure is not related to pyroreaction, does not the most use the alkali liquor of high concentration, and therefore energy consumption is relatively low, is conducive to controlling cost.
Accompanying drawing explanation
Fig. 1 is the workflow diagram of the present invention.
Detailed description of the invention
1 pair of technical scheme is described further below in conjunction with the accompanying drawings.
The invention provides a kind of method of low-order coal fixed carbon content in raising, comprise the steps:
(1) by middle low-order coal raw ore through crushing, grind, sieving, small grain size raw coal powder is obtained.
The purpose of this step be in order to increase coal dust material when subsequent alkaline soaks with alkaline reaction specific surface area.Grind through experiment
Studying carefully, the granularity of small grain size raw coal powder should be less than 50 mesh, and such coal dust material fully can react with aqueous slkali, increases reaction speed
Rate；After more than 200 mesh, the undersized of coal dust material easily blocks instrument, causes adverse consequences.
(2) small grain size raw coal powder is carried out high pressure base leaching.
In this step, high-pressure is 1～20MPa, preferably 8～12MPa, more preferably 9～10MPa.Alkali soaks
Temperature is 50～150 DEG C, and preferable temperature is 60～80 DEG C.Use NaOH/KOH/NaHCO3As alkaline solution, preferably NaOH,
The mass fraction of alkali liquor is 10～40%, preferably 25～30%, owing to NaOH is highly basic, reacts with the ash in middle low-order coal
Speed is fast, and low price is easy to get.Alkaline solution is 1～10:1 with the mass ratio of small grain size raw coal powder, during soaking due to alkali
NaOH solution is excessive, retains substantial amounts of residue hydroxide ion, now can use calculogenesis in the most reacted solution
Ash regeneration, generates solid state hydrogen calcium oxide when quick lime enters react with hydroxide ion in solution, and solid state hydrogen calcium oxide can be with
Solution separating so that hydroxide ion is recovered.
(3) the small grain size raw coal powder soaked through high pressure base is filtered and washs.
In this step, it is preferred to use filter paper filters, owing to filter paper self porosity is less, good mistake can be played
Filter effect, the thickness of filter paper can be 1～3 μm, and the number of plies of filter paper can be 2～5 layers；Filtering simultaneously can be to the bottom of filter paper
Evacuation, is conducive to improving the rate of filtration；Deionized water wash is preferably used, uses ultrasonic washer simultaneously.
(4) will dry through the small grain size raw coal powder of washing.
In this step, it is preferred to use vacuum drying box is dried, drying temperature is 100～120 DEG C.
Embodiment 1
The middle low order colliery selecting phosphorus content to be 60%, reacts: middle low-order coal raw ore is passed through by (1) as follows
Crushing, grind, sieve, obtain small grain size raw coal powder, granularity is 50-200 mesh.(2) small grain size raw coal powder is carried out high pressure
Alkali soak, wherein, high-pressure is 5MPa, alkali leaching temperature be 50 DEG C, alkali leaching solution be mass fraction be the NaOH of 10%, alkali liquor with
The mass ratio of small grain size raw coal powder is 1:1, and the NaOH solution after alkali leaching uses quick lime regeneration.(3) soak through high pressure base
Small grain size raw coal powder use filter paper filtering, bottom evacuation to filter paper while filtration, make to be washed with deionized water simultaneously
Washing, washing process uses ultrasonic washer.(4) the small grain size raw coal powder through washing is carried out vacuum drying, dry temperature
Being 120 DEG C, drying time is about 1h.
Embodiment 2
The middle low order colliery selecting phosphorus content to be 60%, reacts: middle low-order coal raw ore is passed through by (1) as follows
Crushing, grind, sieve, obtain small grain size raw coal powder, granularity is 50-200 mesh.(2) small grain size raw coal powder is carried out high pressure
Alkali soak, wherein, high-pressure is 20Mpa, alkali leaching temperature be 150 DEG C, alkali leaching solution be mass fraction be the NaOH of 40%, alkali liquor
Being 10:1 with the mass ratio of small grain size raw coal powder, the NaOH solution after alkali leaching uses quick lime regeneration.(3) to through high pressure base
The small grain size raw coal powder of leaching uses filter paper filtering, bottom evacuation to filter paper while filtration, uses deionized water simultaneously
Washing, washing process uses ultrasonic washer.(4) the small grain size raw coal powder through washing is carried out vacuum drying, dry temperature
Degree is 120 DEG C, and drying time is about 1h.
Embodiment 3
The middle low order colliery selecting phosphorus content to be 60%, reacts: middle low-order coal raw ore is passed through by (1) as follows
Crushing, grind, sieve, obtain small grain size raw coal powder, granularity is 50-200 mesh.(2) small grain size raw coal powder is carried out high pressure
Alkali soak, wherein, high-pressure is 10Mpa, alkali leaching temperature be 100 DEG C, alkali leaching solution be mass fraction be the NaOH of 25%, alkali liquor
Being 5:1 with the mass ratio of small grain size raw coal powder, the NaOH solution after alkali leaching uses quick lime regeneration.(3) to through high pressure base
The small grain size raw coal powder of leaching uses filter paper filtering, bottom evacuation to filter paper while filtration, uses deionized water simultaneously
Washing, washing process uses ultrasonic washer.(4) the small grain size raw coal powder through washing is carried out vacuum drying, dry temperature
Degree is 120 DEG C, and drying time is about 1h.
Embodiment 4
The middle low order colliery selecting phosphorus content to be 60%, reacts: middle low-order coal raw ore is passed through by (1) as follows
Crushing, grind, sieve, obtain small grain size raw coal powder, granularity is 50-200 mesh.(2) small grain size raw coal powder is carried out high pressure
Alkali soak, wherein, high-pressure is 10Mpa, alkali leaching temperature be 100 DEG C, alkali leaching solution be mass fraction be the NaOH of 40%, alkali liquor
Being 5:1 with the mass ratio of small grain size raw coal powder, the NaOH solution after alkali leaching uses quick lime regeneration.(3) to through high pressure base
The small grain size raw coal powder of leaching uses filter paper filtering, bottom evacuation to filter paper while filtration, uses deionized water simultaneously
Washing, washing process uses ultrasonic washer.(4) the small grain size raw coal powder through washing is carried out vacuum drying, dry temperature
Degree is 120 DEG C, and drying time is about 1h.
Embodiment 5
The middle low order colliery selecting phosphorus content to be 60%, reacts: middle low-order coal raw ore is passed through by (1) as follows
Crushing, grind, sieve, obtain small grain size raw coal powder, granularity is 50-200 mesh.(2) small grain size raw coal powder is carried out high pressure
Alkali soak, wherein, high-pressure is 10Mpa, alkali leaching temperature be 100 DEG C, alkali leaching solution be mass fraction be the NaOH of 25%, alkali liquor
Being 10:1 with the mass ratio of small grain size raw coal powder, the NaOH solution after alkali leaching uses quick lime regeneration.(3) to through high pressure base
The small grain size raw coal powder of leaching uses filter paper filtering, bottom evacuation to filter paper while filtration, uses deionized water simultaneously
Washing, washing process uses ultrasonic washer.(4) the small grain size raw coal powder through washing is carried out vacuum drying, dry temperature
Degree is 120 DEG C, and drying time is about 1h.
Embodiment 6
The middle low order colliery selecting phosphorus content to be 60%, reacts: middle low-order coal raw ore is passed through by (1) as follows
Crushing, grind, sieve, obtain small grain size raw coal powder, granularity is 50-200 mesh.(2) small grain size raw coal powder is carried out high pressure
Alkali soak, wherein, high-pressure is 20Mpa, alkali leaching temperature be 50 DEG C, alkali leaching solution be mass fraction be the NaOH of 25%, alkali liquor
Being 5:1 with the mass ratio of small grain size raw coal powder, the NaOH solution after alkali leaching uses quick lime regeneration.(3) to through high pressure base
The small grain size raw coal powder of leaching uses filter paper filtering, bottom evacuation to filter paper while filtration, uses deionized water simultaneously
Washing, washing process uses ultrasonic washer.(4) the small grain size raw coal powder through washing is carried out vacuum drying, dry temperature
Degree is 120 DEG C, and drying time is about 1h.
Embodiment 7
The middle low order colliery selecting phosphorus content to be 60%, reacts: middle low-order coal raw ore is passed through by (1) as follows
Crushing, grind, sieve, obtain small grain size raw coal powder, granularity is 50-200 mesh.(2) small grain size raw coal powder is carried out high pressure
Alkali soak, wherein, high-pressure is 1MPa, alkali leaching temperature be 50 DEG C, alkali leaching solution be mass fraction be the NaOH of 10%, alkali liquor with
The mass ratio of small grain size raw coal powder is 1:1, and the NaOH solution after alkali leaching uses quick lime regeneration.(3) soak through high pressure base
Small grain size raw coal powder use filter paper filtering, bottom evacuation to filter paper while filtration, make to be washed with deionized water simultaneously
Washing, washing process uses ultrasonic washer.(4) the small grain size raw coal powder through washing is carried out vacuum drying, dry temperature
Being 120 DEG C, drying time is about 1h.
The composition that embodiment 1-7 obtains middle low-order coal is as shown in table 1 below.
The composition contrast of low-order coal in table 1 embodiment 1-7
By table 1, embodiment 1, embodiment 2, embodiment 6 improve reaction pressure, and the coal dust material carbon content obtained is bright
Aobvious raising；Embodiment 3-5, reaction pressure is constant, optimizes other response parameters, and the carbon content of coal dust material improves accordingly；Embodiment 7
Reaction pressure is less, and the carbon content of coal dust material maintains certain ratio, remains above low-order coal in commonsense method processing and is produced
The carbon content of product.
Comparative example 1 uses cracking process centering low-order coal to process
The middle low order colliery selecting phosphorus content to be 60%, reacts: heated by coal paramount under vacuo as follows
Temperature (600 DEG C), decomposes and obtains coke, coal tar oil and gas.The composition obtaining middle low-order coal is as shown in table 3.
The composition of the middle low-order coal obtained after the processing of centering low-order coal in table 2 prior art
| Content of ashes/% | Fixed carbon content/% | Other component/% | |
| Cracking process | 20 | 75 | 15 |
By table 2, cracking process can improve carbon content, but compared to the method improving the leaching of pressure alkali, poor effect.
The impact of the different high-pressure centering low-order coal composition of embodiment 8
The middle low order colliery selecting phosphorus content to be 60%, carries out 9 groups of reactions: (1) is by middle low-order coal raw ore as follows
Through crushing, grind, sieving, obtaining small grain size raw coal powder, granularity is 50-200 mesh.(2) small grain size raw coal powder is carried out
High pressure base soak, wherein, high-pressure is as shown in table 3 below, alkali leaching temperature be 80 DEG C, alkali leaching solution be mass fraction be 25%
NaOH, alkali liquor is 5:1 with the mass ratio of small grain size raw coal powder, and the NaOH solution after alkali leaching uses quick lime regeneration.(3) to warp
The small grain size raw coal powder crossing high pressure base leaching uses filter paper filtering, and bottom evacuation to filter paper while filtration uses simultaneously
Deionized water wash, washing process uses ultrasonic washer.(4) vacuum baking will be carried out through the small grain size raw coal powder of washing
Dry, drying temperature is 120 DEG C, and drying time is about 1h.
The impact of the different high-pressure centering low-order coal composition of table 3
| Group number | High-pressure/MPa | Content of ashes/% | Fixed carbon content/% | Other component/% |
| Group 1 | 0.5 | 16 | 66 | 18 |
| Group 2 | 0.8 | 15 | 68 | 17 |
| Group 3 | 1 | 10 | 80 | 10 |
| Group 4 | 5 | 9 | 82 | 11 |
| Group 5 | 10 | 8 | 84 | 8 |
| Group 6 | 15 | 6 | 88 | 6 |
| Group 7 | 20 | 5 | 89 | 6 |
| Group 8 | 22 | 5 | 89 | 6 |
| Group 9 | 25 | 5 | 89 | 6 |
By table 3, the reaction pressure of group 1 and group 2 improves poor effect less than 1MPa, carbon content；Group 3-7 reaction pressure
Power is 1-20MPa, and along with the raising of pressure, fixed carbon content significantly improves；Group 8 and group 9 reaction pressure more than 20MPa, Gu
Determine carbon content and improve inconspicuous.
The impact of embodiment 9 Different Alkali leaching temperature centering low-order coal composition
The middle low order colliery selecting phosphorus content to be 60%, carries out 10 groups of reactions: (1) is by middle low-order coal raw ore as follows
Through crushing, grind, sieving, obtaining small grain size raw coal powder, granularity is 50-200 mesh.(2) small grain size raw coal powder is carried out
High pressure base soak, wherein, high-pressure is 10MPa, alkali leaching temperature as shown in table 4 below, alkali leaching solution be mass fraction be 25%
NaOH, alkali liquor is 5:1 with the mass ratio of small grain size raw coal powder, and the NaOH solution after alkali leaching uses quick lime regeneration.(3) to warp
The small grain size raw coal powder crossing high pressure base leaching uses filter paper filtering, and bottom evacuation to filter paper while filtration uses simultaneously
Deionized water wash, washing process uses ultrasonic washer.(4) vacuum baking will be carried out through the small grain size raw coal powder of washing
Dry, drying temperature is 120 DEG C, and drying time is about 1h.
The impact of table 4 Different Alkali leaching temperature centering low-order coal composition
By table 4, the reaction temperature of group 1-2 is less than 50 DEG C, and carbon content improves poor effect；Group 3-8 reaction temperature
For 50-150 DEG C, along with the raising of reaction temperature, fixed carbon content increases accordingly；Group 9, organize 10 reaction temperatures more than 150 DEG C, Gu
Determine carbon content and improve inconspicuous.
The impact of the different concentration of lye centering low-order coal composition of embodiment 10
The middle low order colliery selecting phosphorus content to be 60%, carries out 11 groups of reactions: (1) is by middle low-order coal raw ore as follows
Through crushing, grind, sieving, obtaining small grain size raw coal powder, granularity is 50-200 mesh；(2) small grain size raw coal powder is carried out
High pressure base is soaked, and wherein, high-pressure is 10MPa, and alkali leaching temperature is 80 DEG C, and alkali leaching solution is NaOH solution, and its mass fraction is such as
Shown in table 5, alkali liquor is 5:1 with the mass ratio of small grain size raw coal powder, and the NaOH solution after alkali leaching uses quick lime regeneration.(3)
The small grain size raw coal powder that soaks through high pressure base is used filter paper filtering, bottom evacuation to filter paper while filtration, simultaneously
Making to be washed with deionized, washing process uses ultrasonic washer.(4) vacuum will be carried out through the small grain size raw coal powder of washing
Drying, drying temperature is 120 DEG C, and drying time is about 1h.
The impact of table 5 Different Alkali leaching concentration centering low-order coal composition
By table 5, the reaction basicity of group 1 and group 2 is less than 10%, and carbon content improves poor effect；Group 3-9 reaction base
Degree improves to 10-40%, and along with the raising of reaction basicity, fixed carbon content increases accordingly；Group 10 reaction basicity more than 40%, Gu
Determine carbon content and improve poor effect.
Claims (10)
1. the method for low-order coal fixed carbon content in a raising, it is characterised in that comprise the steps:
(1) by middle low-order coal raw ore through crushing, grind, sieving, small grain size raw coal powder is obtained；
(2) small grain size raw coal powder is carried out high pressure base leaching；
(3) the small grain size raw coal powder soaked through high pressure base is filtered and washs；
(4) will dry through the small grain size raw coal powder of washing.
The method of low-order coal fixed carbon content in raising the most according to claim 1, it is characterised in that: in step (2), institute
The high-pressure stating high pressure base leaching is 1～20MPa.
The method of low-order coal fixed carbon content in raising the most according to claim 2, it is characterised in that: described high pressure base is soaked
High-pressure be 8～12MPa.
The method of low-order coal fixed carbon content in raising the most according to claim 1, it is characterised in that: in step (2), institute
The alkali leaching temperature stating high pressure base leaching is 50～150 DEG C.
The method of low-order coal fixed carbon content in raising the most according to claim 4, it is characterised in that: described high pressure base is soaked
Alkali leaching temperature be 60～80 DEG C.
The method of low-order coal fixed carbon content in raising the most according to claim 1, it is characterised in that: in step (2), institute
State high pressure base leaching and use NaOH/KOH/NaHCO3As alkaline solution, wherein, the mass fraction of alkali liquor is 10～40%.
The method of low-order coal fixed carbon content in raising the most according to claim 6, it is characterised in that: the matter of described alkali liquor
Amount mark is 25～30%.
The method of low-order coal fixed carbon content in raising the most according to claim 1, it is characterised in that: in step (2), institute
Stating the alkaline solution of high pressure base leaching use with the mass ratio of small grain size raw coal powder is 1～10:1.
The method of low-order coal fixed carbon content in raising the most according to claim 1, it is characterised in that: in step (1), institute
State small grain size raw coal powder granularity 50-200 mesh.
The method of low-order coal fixed carbon content in raising the most according to claim 1, it is characterised in that: in step (2),
The alkaline solution that the leaching of described high pressure base uses uses quick lime regeneration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610538156.4A CN106190420A (en) | 2016-07-08 | 2016-07-08 | A kind of method of low-order coal fixed carbon content in raising |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610538156.4A CN106190420A (en) | 2016-07-08 | 2016-07-08 | A kind of method of low-order coal fixed carbon content in raising |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106190420A true CN106190420A (en) | 2016-12-07 |
Family
ID=57472882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610538156.4A Pending CN106190420A (en) | 2016-07-08 | 2016-07-08 | A kind of method of low-order coal fixed carbon content in raising |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106190420A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108587714A (en) * | 2018-02-11 | 2018-09-28 | 内蒙古工业大学 | A kind of sodium base lignite and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060096166A1 (en) * | 2002-10-29 | 2006-05-11 | Paul Brooks | Process for demineralising coal |
| CN101559402A (en) * | 2009-05-19 | 2009-10-21 | 昆明理工大学 | Method for purifying high-ash coke powder |
| CN101774565A (en) * | 2009-12-25 | 2010-07-14 | 昆明理工大学 | Method for deeply deashing cock |
-
2016
- 2016-07-08 CN CN201610538156.4A patent/CN106190420A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060096166A1 (en) * | 2002-10-29 | 2006-05-11 | Paul Brooks | Process for demineralising coal |
| CN101559402A (en) * | 2009-05-19 | 2009-10-21 | 昆明理工大学 | Method for purifying high-ash coke powder |
| CN101774565A (en) * | 2009-12-25 | 2010-07-14 | 昆明理工大学 | Method for deeply deashing cock |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108587714A (en) * | 2018-02-11 | 2018-09-28 | 内蒙古工业大学 | A kind of sodium base lignite and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106395816B (en) | A method of residue prepares adsorbent after extracting humic acid by lignite | |
| CN104211045B (en) | A kind of simple and quick method of preparing rice husk base porous charcoal/silicon dioxide composite material | |
| CN111841495A (en) | Preparation method of porous tea residue biochar with high specific surface area | |
| CN105396684A (en) | Method for extracting ultra-low-ash-content pure coal from coal slime | |
| CN108311104A (en) | A kind of charcoal preparation method of synchronous pyrolysis load iron | |
| CN1673076A (en) | Method for producing active carbon by using straw mixed raw material | |
| KR101176969B1 (en) | A process for producing activated carbon from coffee grounds | |
| CN104477908A (en) | Method for preparing activated carbon with chitosan used as raw material and obtainedactivated carbon | |
| CN113149006B (en) | Method for preparing capacitance carbon by using biomass rich in lignin as raw material | |
| CN108579673B (en) | Silkworm excrement biochar and preparation method and application thereof | |
| JP5495208B2 (en) | High specific surface area activated carbon using lignin as raw material and adsorbent for lower alcohol containing the same | |
| CN101445232A (en) | Porous carbon and preparation method thereof | |
| CN111732101A (en) | Preparation method of coal-based supercapacitor activated carbon | |
| CN105688591A (en) | Hydrogen-containing tail gas recycling process of cyclohexanol production device | |
| CN102530938A (en) | Method for producing drinking water deep purification activated carbon by utilizing Datong coal | |
| CN111232978B (en) | Method for preparing high-yield activated carbon by grouping and separating shell biomass | |
| CN101723364B (en) | Method for preparing activated carbon by using plasmas to crack solid coal product | |
| CN110272772B (en) | Preparation method of ultra-pure anthracite | |
| CN106190420A (en) | A kind of method of low-order coal fixed carbon content in raising | |
| CN113426568B (en) | High-sodium low-rank coal flotation sodium removal method and system | |
| CN103349973A (en) | Regeneration method of nitrogen-preparation carbon molecular sieve | |
| CN113735117A (en) | Pressure swing adsorption's active carbon | |
| Mazurek et al. | The Application of Pyrolysis Biochar Obtained from Waste Rapeseed Cake to Remove Copper from Industrial Wastewater: An Overview | |
| CN107055507A (en) | A kind of preparation method of carbon molecular sieve | |
| KR101311389B1 (en) | A method for preparing anthracite-based powdered activated carbon with high specific surface area from anthracites |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination |