CN109054900A - A kind of coal gasification method and system - Google Patents
A kind of coal gasification method and system Download PDFInfo
- Publication number
- CN109054900A CN109054900A CN201810940301.0A CN201810940301A CN109054900A CN 109054900 A CN109054900 A CN 109054900A CN 201810940301 A CN201810940301 A CN 201810940301A CN 109054900 A CN109054900 A CN 109054900A
- Authority
- CN
- China
- Prior art keywords
- oxygen
- iron ore
- product
- titanium iron
- reactor
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/02—Fixed-bed gasification of lump fuel
- C10J3/20—Apparatus; Plants
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/82—Gas withdrawal means
- C10J3/84—Gas withdrawal means with means for removing dust or tar from the gas
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/006—Starting from ores containing non ferrous metallic oxides
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0073—Selection or treatment of the reducing gases
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1625—Integration of gasification processes with another plant or parts within the plant with solids treatment
Abstract
The present invention provides a kind of coal gasification method and systems, are related to technical field of coal chemical industry, realize and obtain the product containing fe and titaniferous materials while oxygen supply to coal gasifying process, reduce the cost of coal gasification.The coal gasification method includes that titanium iron ore is placed in oxidation reactor, and being passed through oxygen-containing gas makes titanium iron ore that the titanium iron ore that oxidation reaction obtains loading oxygen occur；The titanium iron ore for loading oxygen and raw coal are placed in reduction reactor, the titanium iron ore for loading oxygen provides oxygen, and coal gasification reaction occurs for raw coal, and the titanium iron ore for loading oxygen occurs reduction reaction and generates fe；A part of product in reduction reactor is taken out of with air-flow, and the product taken out of to air-flow carries out isolated fuel gas, fe and titaniferous materials；The load of oxygen will be re-started in resultant product Returning oxidation reactor, to be re-used for the coal gasification reaction in reduction reactor.Above-mentioned coal gasification method and system are applied to carry out in the field of coal gasification using chemical chain gasification reaction.
Description
Technical field
The present invention relates to technical field of coal chemical industry more particularly to a kind of coal gasification method and systems.
Background technique
Chemical chain gasification reaction is one kind of coal gasification method, the basic principle is that traditional fuel is directly connect with air
The gasification for touching reaction, be decomposed into 2 gas-solid reactions by means of the effect of oxygen carrier: air reaction and fuel gasification react.
In reaction process, the oxygen in air, without contacting, is transmitted in fuel by fuel with air by oxygen carrier.
In the reaction of coal chemistry chain gasification, coal is not direct in gasification furnace to be contacted with air, using vapor as gasification
Medium realizes the transmitting of oxygen and heat by circulation of the oxygen carrier between air reactor and gasification reactor, complete coal and
Air does not contact gasification reaction.
Since oxygen carrier needs constantly to recycle between air reaction and fuel gasification reaction, therefore it is required that oxygen carrier
The higher the better for oxygen carrying capacity and mechanical strength.Although the oxygen carrier satisfaction manually prepared wants oxygen carrying capacity and mechanical strength
It asks, but prepares costly, cause coal gasification expensive；And natural oxygen carrier, although itself is low in cost, its
Mechanical strength is low, this causes the consumption of oxygen carrier in coal gasification course bigger, increases the cost of coal gasification indirectly.
Summary of the invention
For it is above-mentioned the problems of in the prior art, the embodiment of the present invention provides a kind of coal gasification method and is
System, to reduce the cost of coal gasification.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that
In a first aspect, the embodiment of the invention provides a kind of coal gasification methods, comprising: titanium iron ore is placed in oxidation reaction
In device, it is passed through oxygen-containing gas, makes the titanium iron ore that oxidation reaction occur, obtains the titanium iron ore of load oxygen；By the load
The titanium iron ore and raw coal of oxygen are placed in reduction reactor, are passed through vapor, and the titanium iron ore of the load oxygen provides oxygen, raw coal
Coal gasification reaction occurs, and the titanium iron ore of the load oxygen occurs reduction reaction and generates fe；It is taken out of with air-flow described
A part of product in reduction reactor, the product taken out of to air-flow separate, and obtain fuel gas, fe and titaniferous
Substance；The product that air-flow is not taken out of returns in the oxidation reactor, re-starts the load of oxygen, to be re-used for described go back
Coal gasification reaction in former reactor.
In some embodiments, the partial size of the titanium iron ore is 0.5~3mm, and the partial size of the raw coal is 2~10mm.
In some embodiments, the gas velocity of air-flow is 0.5~2m/s in the oxidation reactor, and temperature is 1000~1100
℃。
In some embodiments, the gas velocity of air-flow is 1~5m/s in the reduction reactor, and temperature is 700~900 DEG C.
In some embodiments, in a part of product in the reduction reactor taken out of with air-flow, solid particle
Partial size be less than or equal to 0.5mm.
In some embodiments, the product taken out of to air-flow separates, and obtains fuel gas, fe and contains
The step of titanium substance, comprising: the product taken out of to air-flow carries out gas solid separation, and extraction obtains fuel gas, and is discharged and contains
The product of fe and titaniferous materials；Magnetic separation is carried out containing the product of fe and titaniferous materials to described, extraction obtains simple substance
The product containing titaniferous materials is discharged in iron；Flotation is carried out to the product containing titaniferous materials and/or gravity treatment, extraction obtain
Titaniferous materials.
In some embodiments, in described the step of titanium iron ore is placed in oxidation reactor, is passed through oxygen-containing gas, with
Between described the step of being placed in reduction reactor, be passed through vapor the titanium iron ore of the load oxygen and raw coal, further includes:
Product in the oxidation reactor is subjected to gas solid separation, obtain Poor oxygen gas and loads the titanium iron ore of oxygen, it will be described poor
Carrier of oxygen discharge, and the titanium iron ore of the load oxygen is passed through in the reduction reactor.
In some embodiments, the coal gasification method further include: the residual product in the reduction reactor is discharged
The reduction reactor；Wherein, the residual product is not only not taken out of by air-flow in the reduction reactor but also be not returned to
Product in the oxidation reactor.
Second aspect, the present invention provides a kind of gasification system, the gasification system includes: oxidation reactor, is used
In making titanium iron ore and oxygen-containing gas that oxidation reaction occur, the titanium iron ore of load oxygen is obtained；Reduction reactor, it is described for making
The titanium iron ore for loading oxygen provides oxygen, and coal gasification reaction occurs for raw coal, and reduction reaction occurs for the titanium iron ore of the load oxygen
And generate fe；First separation equipment, for separating the product that air-flow is taken out of in the reduction reactor, obtaining can
Combustion gas body, fe and titaniferous materials.
In some embodiments, the oxidation reactor is provided with the first charging aperture for being passed through the titanium iron ore,
For being passed through the air inlet of oxygen-containing gas, and the discharge port of the product for being discharged in the oxidation reactor.
The reduction reactor is provided with the first charging aperture of the titanium iron ore for being passed through the load oxygen, for being passed through
The second charging aperture of the raw coal, for being passed through the air inlet of the vapor, and for gas in the reduction reactor to be discharged
First discharge port of the product that stream is taken out of.
The gasification system further include: be connected to the oxidation reactor discharge port and the reduction reactor the
The second separation equipment between one feed inlet obtains oxygen deprivation for the product in the oxidation reactor to be carried out gas solid separation
The titanium iron ore of gas and load oxygen, the Poor oxygen gas is discharged, and the titanium iron ore of the load oxygen is passed through described go back
In former reactor.
In some embodiments, the oxidation reactor is additionally provided with is reduced in the reduction reactor for being passed through
The second charging aperture of titanium iron ore.
The reduction reactor is additionally provided with the second discharge port for the titanium iron ore being reduced to be discharged.
The oxidation reactor second charging aperture is connected with the second discharge port of the reduction reactor.
In some embodiments, first separation equipment includes: the cyclone separator being connected with the reduction reactor,
Product for taking out of to air-flow in the reduction reactor carries out gas solid separation, and extraction obtains fuel gas, and discharge is containing single
The product of matter iron and titaniferous materials；The Magnet Separater being connected with the cyclone separator, for it is described containing fe and
The product of titaniferous materials carries out magnetic separation, and extraction obtains fe, and the product containing titaniferous materials is discharged；With the Magnet Separater
Connected flotation separator and/or Gravity separation device, for the product progress flotation containing titaniferous materials and/or again
Choosing, extraction obtain titaniferous materials.
Coal gasification method provided by the present invention and system can generate it is following the utility model has the advantages that
Oxygen is carried in coal gasification reaction as oxygen carrier by using titanium iron ore cheap and easy to get, coal gasification is provided
React the oxygen needed, but the characteristics of be oxidized easily reduction using titanium iron ore realize supplied oxygen to coal gasification reaction while,
The product containing fe and titaniferous materials is obtained, purity can be obtained by the separation to fe and the product of titaniferous materials
Higher fe and titaniferous materials compensate for bring economic benefit using natural oxygen carrier, due to oxygen carrier consumption
Big institute indirectly caused by increased costs defect, realize the purpose of reduction coal gasification reaction cost.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the flow chart of coal gasification method provided by some embodiments of the present invention；
Fig. 2 is the flow chart of coal gasification method provided by other embodiments of the invention；
Fig. 3 is the structure chart of gasification system provided by still other embodiments of the invention.
Description of symbols:
1- oxidation reactor；The first charging aperture of 11- oxidation reactor；
The air inlet of 12- oxidation reactor；Two feed inlets of 13- oxidation reactor；
The discharge port of 14- oxidation reactor；2- reduction reactor；
The first charging aperture of 21- reduction reactor；The second charging aperture of 22- reduction reactor；
The air inlet of 23- reduction reactor；First discharge port of 24- reduction reactor；
Second discharge port of 25- reduction reactor；The third discharge port of 26- reduction reactor；
The second separation equipment of 3-；The feed inlet of the second separation equipment of 31-；
The gas outlet of the second separation equipment of 32-；The discharge port of the second separation equipment of 33-；
The first separation equipment of 4-；5- level-one separator；
The feed inlet of 51- level-one separator；The gas outlet of 52- level-one separator；
The discharge port of 53- level-one separator；6- secondary separation device；
The feed inlet of 61- secondary separation device；First discharge port of 62- secondary separation device；
Second discharge port of 63- secondary separation device；7- three-level separator；
The feed inlet of 71- three-level separator；First discharge port of 72- three-level separator；
Second discharge port of 73- three-level separator.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, implement below in conjunction with the present invention
Attached drawing in example, technical scheme in the embodiment of the invention is clearly and completely described.Obviously, described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel all other embodiment obtained without creative labor belongs to the model that the present invention protects
It encloses.
The embodiment of the present invention provides a kind of coal gasification method, and as shown in FIG. 1 to 3, which includes as follows
Step:
Step S1: titanium iron ore being placed in oxidation reactor 1, oxygen-containing gas is passed through, and makes titanium iron ore that oxidation occur anti-
It answers, obtains the titanium iron ore of load oxygen.
In above-mentioned steps S1, the main chemical reactions process carried out in oxidation reactor 1 includes:
2Me+O2→2MeO；
Wherein, Me is that the general designation of metallic element is write a Chinese character in simplified form, and Me mainly includes the iron (Fe) in titanium iron ore.
In above-mentioned steps S1, the iron atom on titanium iron ore surface is oxidized to high price iron, and on high temperature (1000 DEG C of left sides
It is right) under the conditions of titanium iron ore be solid solution, internal iron atom can be oxidized to surface migration, while titanium iron ore skeleton
Keep complete.Oxidation reaction increases the crystal grain of titanium iron ore, and the interior porosity of titanium iron ore becomes larger, and can be improved in this way
By the degree of mechanical dusting during titanium iron ore recycles between oxidation reactor and reduction reactor.
In some embodiments, the mass content of ferrotianium can be less than or equal in the titanium iron ore in above-mentioned steps S1
30%, remaining is gangue.Here gangue can be used as good heat storage, carry heat in oxidation reactor 1 and reduction reaction
It moves in circles between device 2, provides heat for coal gasification reaction, advantageously reduce specific energy consumption, improve the utilization rate of fuel value.
In some embodiments, in above-mentioned steps S1, the oxygen-containing gas for participating in oxidation reaction can be air, and air has
It is easy acquisition, cheap advantage, it can be with save the cost.
In above-mentioned steps S1, the particle size of titanium iron ore will affect the quality of oxidation reaction, and the partial size of titanium iron ore is too
Greatly, oxygen-containing gas is less easily accessible to inside titanium iron ore, reaction time consumption is more, reacts insufficient；The partial size of titanium iron ore is too
Processing cost that is small and will increase titanium iron ore increases the cost of coal gasification reaction indirectly.In some embodiments, oxidation is participated in
The particle size range of the titanium iron ore of reaction can make in titanium iron ore more in this particle size range for 0.5~3mm
More iron are oxidized, and titanium iron ore particle is relatively easy to process.
In above-mentioned steps S1, the gas velocity size of air-flow also will affect the quality of oxidation reaction in oxidation reactor 1, this be because
For the uniformity that on the one hand reasonable gas velocity disturbance can make titanium iron ore be oxidized improves, titanium iron ore machinery dusting journey
Degree increases；On the other hand, excessive oxygen-containing gas, which facilitates more titanium iron ores, can load oxygen, and it is anti-to improve subsequent coal gasification
Efficiency of carbon con version in answering.In some embodiments, the gas velocity of air-flow may be controlled to 0.5~2m/s in oxidation reactor 1, at this
Within the scope of a gas velocity, titanium iron ore can be made by uniform alumina, mechanical dusting degree is higher, and improves subsequent coal gasification reaction
In efficiency of carbon con version.
In above-mentioned steps S1, the height of temperature also will affect the quality of oxidation reaction, suitable temperature in oxidation reactor 1
It can guarantee that the iron atom in titanium iron ore is easier to titanium iron ore surface migration, while can guarantee titanium iron ore skeleton again
Completely, the iron atom for moving to titanium iron ore surface is aoxidized by oxygen-containing gas, the iron atom inside titanium iron ore with react into
Row is constantly oxidized, and is finally completed the process of titanium iron ore load oxygen.It can be by being recycled into oxygen in control reduction reactor 2
Change the amount of the products such as titanium iron ore and the semicoke of the carrying heat in reactor, and the environment in oxidation reactor 1 is carried out
The means such as the temperature of heating control the temperature in oxidation reactor.In some embodiments, temperature can be controlled 1000
~1100 DEG C, in this temperature range, oxidation reaction is more abundant.
In above-mentioned steps S1, the reaction time in oxidation reactor 1 also will affect oxidation reaction quality, and the reaction time is too
Short, oxidation reaction is not enough, and is influenced the amount that titanium iron ore carries oxygen, is then influenced the efficiency of entire coal gasification reaction；Reaction
Time is too long, and the abortive response time will cause the wasting of resources in oxidation reaction.In some embodiments, titanium iron ore is being aoxidized
Reaction time in reactor controlled at 5~20 minutes, in this time range, can make titanium iron ore and oxygen-containing gas
It reacts more abundant, and not will increase the abortive response time and result in waste of resources.
As shown in Figures 2 and 3, in some embodiments, can also include the following steps: after above-mentioned steps S1 by oxygen
The product changed in reactor 1 carries out gas solid separation, obtains Poor oxygen gas and loads the titanium iron ore of oxygen, Poor oxygen gas is discharged,
And the titanium iron ore for loading oxygen is passed through in reduction reactor 2.
In above-mentioned steps, the product in oxidation reactor 1 is carried out gas solid separation can be carried out using cyclone separator,
Cyclone separator has many advantages, such as that structure is simple, cheap, maintenance is convenient.
Step S2: the titanium iron ore for loading oxygen and raw coal are placed in reduction reactor 2, vapor is passed through, loads oxygen
Titanium iron ore provides oxygen, and coal gasification reaction occurs for raw coal, and the titanium iron ore for loading oxygen occurs reduction reaction and generates fe.
In above-mentioned steps S2, the main chemical reactions process carried out in reduction reactor 2 includes:
C+H2O→CO+H2；
MeO+CO→Me+CO2；
MeO+H2→Me+H2O；
CO+3H2→CH4+H2O；
In above-mentioned steps S2, it includes CO and H that pyrogenous origin product, which occurs, for raw coal2Equal reducing substances, load the titanium of oxygen
Iron ore provides oxygen and heat reacts with reducing substances, loads the being reduced property of oxides-containing iron in the titanium iron ore of oxygen
Substance is reduced to fe.During the titanium iron ore for loading oxygen is reduced, due to there are diffusion effect, always titanium iron ore
The ferriferous oxide of particle surface is first restored, and the ferriferous oxide inside titanium iron ore particle can be migrated to particle appearance, and is moved
Along with reduction while shifting, so that the hole inside titanium iron ore particle can be constantly increasing, titanium iron ore particle becomes thin
Pine, so that titanium iron ore particle is more easily by mechanical dusting.
In above-mentioned steps S2, temperature will affect coal gasification reaction quality, 2 medium temperature of reduction reactor in reduction reactor 2
Degree is too low, and coal gasification reaction is not enough or even does not occur；2 medium temperature of reduction reactor spends height, is also unfavorable for coal gasification reaction
Progress.In some embodiments, the temperature in reduction reactor 2 can be controlled at 700~900 DEG C, within this temperature range,
Coal gasification reaction can be made more abundant.It should be noted that for maintaining the heat of temperature in reduction reactor 2 at least
A part can be supplied by heat entrained by the product (titanium iron ore including loading oxygen) that is discharged in oxidation reactor 1.
In above-mentioned steps S2, the gas velocity size of air-flow also will affect coal gasification reaction and reduction reaction in reduction reactor 2
Quality, this is because on the one hand air-flow in reduction reactor 2 is played the product band in reduction reactor 2 to first point
Effect from equipment 4, on the other hand, it is uniform that the air-flow in reduction reactor 2 facilitates the material mixing in coal gasification reaction, mentions
Efficiency of carbon con version in high coal gasification reaction.In some embodiments, can control the gas velocity of the air-flow in reduction reactor 2 is 1
The air-flow of~5m/s, the gas velocity can make the material mixing in coal gasification reaction uniform, and can relatively easily take out of and contain
There is the product of fe, titaniferous materials.
In above-mentioned steps S2, the particle size of raw coal will affect the quality of coal gasification reaction in reduction reactor 2, in gas
Under the disturbance of stream, coal particle with load oxygen titanium iron ore particle be uniformly mixed as far as possible, if the partial size of raw coal is too big, raw coal and
The insufficient contact of reaction atmosphere, it is more to will lead to reaction time consumption；If the partial size of raw coal is too small, and will increase the processing of raw coal
Cost increases the cost of coal gasification reaction indirectly.In some embodiments, the original of coal gasification reaction is participated in reduction reactor 2
The partial size of coal can be 2~10mm, and under the particle size range, coal gasification reaction is relatively more abundant and raw coal particle is easy to process.
Step S3: taking a part of product in reduction reactor out of with air-flow, and the product taken out of to air-flow separates,
Obtain fuel gas, fe and titaniferous materials.
In above-mentioned steps S3, by gases such as vapor, coal gasification reaction fuel gas generated in reduction reactor 2
It is formed by air-flow, the product that can carry partial size less than certain value enters the first separation equipment 4.In some embodiments, air-flow
A part of product in reduction reactor 2 taken out of includes: fe powder, the titaniferous object that partial size is less than or equal to 0.5mm
Matter powder, oxygen carrier mineral dust etc., product of the partial size less than or equal to 0.5mm can be relatively easily entrained by the flow of air.
Please continue to refer to Fig. 2 and Fig. 3, as a kind of possible implementation, above-mentioned steps S3 specifically includes following three step:
Step S31: the product taken out of to air-flow carries out gas solid separation, and extraction obtains fuel gas, and is discharged containing single
The product of matter iron and titaniferous materials.
In above-mentioned steps S31, the product in reduction reactor 2 that air-flow is taken out of, which is carried out gas solid separation, to be used
Cyclone separator carries out, and cyclone separator has many advantages, such as that structure is simple, cheap, maintenance is convenient.
In some embodiments, carry out gas solid separation extract after obtaining thick fuel gas, can also to thick fuel gas into
The purification of one step, obtains fuel gas.
It should be noted that in some embodiments, after step S31, from the production containing fe and titaniferous materials
Between the extraction for carrying out fe in object, anoxybiotic cooling operation is carried out to the product containing fe and titaniferous materials, to avoid
Fe in product is oxidized under oxygen-containing and hot environment, influences the extraction efficiency of fe.
Step S32: magnetic separation is carried out to the product containing fe and titaniferous materials, extraction obtains fe, and discharge contains
The product of titaniferous materials.
In above-mentioned steps S32, make the product containing fe and titaniferous materials by magnetic field, since fe is to magnetic field
Magnetic conductivity it is high, so fe is aggregated together, to realize the extraction of fe.
In some embodiments, multiple magnetic separation can be carried out to the product containing fe and titaniferous materials, with maximum limit
Extract fe to degree.
Step S33: flotation and/or gravity treatment are carried out to the product containing titaniferous materials, extraction obtains titaniferous materials.
In above-mentioned steps S33, in floatation process, using can generate the surfactants of a large amount of bubbles, bubble can be with
Titaniferous materials and impurity are separated, achieve the purpose that extract titaniferous materials.In reuse adoption process, using containing titaniferous materials
The difference of different material movement rate and direction in medium (water or the biggish liquid of other relative densities), Ke Yishi in product
The extraction of existing titaniferous materials.
In some embodiments, extract titaniferous materials can only with flotation mode, perhaps only with reselection modes or
It is combined using flotation and gravity treatment two ways.It is combined according to flotation and gravity treatment two ways, after first can carrying out flotation
Gravity treatment is carried out, carries out flotation after can also first carrying out gravity treatment.In addition, can repeatedly be floated when carrying out flotation and/or gravity treatment
Choosing and/or multiple gravity treatment, to extract titaniferous materials to the maximum extent.
Step S4: in the product Returning oxidation reactor 1 that air-flow is not taken out of, the load of oxygen is re-started, to use again
Coal gasification reaction in reduction reactor 2.
In reduction reactor 2, raw coal pyrolytic reaction can generate semicoke.In above-mentioned steps S4, product that air-flow is not taken out of
In include the titanium iron ore and semicoke that are reduced, in some embodiments, the quality of semicoke accounts for the 20%~30% of raw coal quality,
The titanium iron ore and semicoke being reduced carry amount of heat, so that heat is provided for the reaction of 1 internal oxidition of oxidation reactor, it is real
The effect of capacity usage ratio is now improved to greatest extent.It should be noted that titanium iron ore process in oxidation reactor 1 and is gone back for several times
It is recycled between former reactor 2, partial size constantly reduces, and mechanical dusting degree becomes larger, when the partial size of titanium iron ore is lower than one
When definite value, in some embodiments, when the partial size of titanium iron ore be less than or equal to 0.5mm when, most of iron with titanium iron ore
Skeleton separation, fe is detached from from titanium iron ore particle surface, and then is brought by air-flow into the first separation equipment 4.As a result, in oxygen
Changing the titanium iron ore amount recycled between reactor 1 and reduction reactor 2 can quickly be reduced, in order to maintain to bear in reduction reactor 2
The titanium iron ore of oxygen carrier and the mass ratio of coal dust are in a certain range, further comprise into oxidation reactor 1 in step sl
Supplement the operation of titanium iron ore.
Referring to Fig. 2 and Fig. 3, in some embodiments, product a part in reduction reactor 2 by air-flow bring to
First separation equipment 4, a part are returned in oxidation reactor 1, and for not both being entrained by the flow of air or not draining into oxidation reaction
It can be discharged from reduction reactor 2 for residual product in device 1.It is not only entrained by the flow of air in reduction reactor 2 but also does not drain into
Residual product in oxidation reactor 1 includes lime-ash, and lime-ash is raw coal and remainder after the titanium iron ore coal gasification reaction of load oxygen
Mineral dregs, particle is larger, can be deposited on 2 bottom of reduction reactor.Lime-ash is both not involved in chemical reaction or without carrying heat
The function of amount, long time sedimentation can absorb 2 internal temperature of reduction reactor in 2 bottom of reduction reactor and cause heat waste, and
Space in reduction reactor 2 can be also occupied, therefore can be periodically or non-periodically discharged from reduction reactor 2, to avoid it to coal
Gasification reaction efficiency impacts.
Coal gasification method provided by the embodiment of the present invention uses titanium iron ore cheap and easy to get to take oxygen as oxygen carrier
The characteristics of taking in coal gasification reaction, providing the oxygen of coal gasification reaction needs, and be oxidized easily reduction using titanium iron ore exists
While realization to coal gasification reaction oxygen supply, obtain to obtain containing fe by the separation to the product containing fe
The higher fe of purity is obtained, to bring economic benefit, is compensated for using natural oxygen carrier, by the big institute of oxygen carrier consumption
The defect of increased costs caused by indirectly realizes the purpose for reducing coal gasification reaction cost.
It is to be provided for the embodiments of the invention being discussed in detail for coal gasification method above, on the basis of the above, such as Fig. 3 institute
Show, the embodiment of the invention also provides a kind of gasification system, which includes: oxidation reactor 1, reduction reactor
2 and first separation equipment 4.Wherein, oxidation reactor 1 is obtained for making titanium iron ore and oxygen-containing gas that oxidation reaction occur
Load the titanium iron ore of oxygen.The titanium iron ore that reduction reactor 2 is used to make to load oxygen provides oxygen, and coal gasification reaction occurs for raw coal,
And the titanium iron ore for loading oxygen occurs reduction reaction and generates fe.First separation equipment 4, being used for will be in reduction reactor 2
Product separated, obtain fuel gas, fe and titaniferous materials.It should be noted that " titaniferous materials " are main
Including titanium-containing oxide.
In some embodiments, as shown in figure 3, in above-mentioned gasification system, oxidation reactor 1 is provided with the first charging
Mouth 11, air inlet 12 and discharge port 14.Wherein, for the first charging aperture 11 of oxidation reactor for being passed through titanium iron ore, oxidation is anti-
Answer the air inlet 12 of device for being passed through oxygen-containing gas, the production that the discharge port 14 of oxidation reactor is used to be discharged in oxidation reactor 1
Object.
Reduction reactor 2 is provided with first charging aperture 21, second charging aperture 22, air inlet 23 and the first discharge port 24.Its
In, the first charging aperture 21 of reduction reactor is used to be passed through the titanium iron ore of load oxygen, the second charging aperture 22 of reduction reactor
For being passed through raw coal, the air inlet 23 of reduction reactor is for being passed through vapor, the first discharge port 24 of reduction reactor and the
One separation equipment 4 is connected, for the product that can be taken out of by air-flow in reduction reactor to be expelled in the first separation equipment 4.
As a kind of possible design, as shown in figure 3, further including being connected to oxidation reactor in above-mentioned gasification system
The second separation equipment 3 between 1 discharge port 14 and the first charging aperture 21 of reduction reactor 2.Second separation equipment 3 is used for will
Product in oxidation reactor 1 carries out gas solid separation, obtains Poor oxygen gas and loads the titanium iron ore of oxygen, Poor oxygen gas is arranged
Out, and by the titanium iron ore for loading oxygen it is passed through in reduction reactor 2.It should be noted that " Poor oxygen gas " refers in oxygen
Change in reactor 1, the oxygen in oxygen-containing gas is loaded in titanium iron ore, so that oxygen content declines in oxygen-containing gas, becomes poor
Carrier of oxygen.
In some embodiments, the second separation equipment 3 includes cyclone separator.Cyclone separator relies on the gas of Poor oxygen gas
Bring rotary motion is flowed, separates the load oxygen titanium iron ore with larger centrifugal inertial force from air-flow, to realize
The separation of the titanium iron ore of Poor oxygen gas and load oxygen.
In some embodiments, the second separation equipment 3 is provided with feed inlet 31, gas outlet 32 and discharge port 33.Wherein,
The feed inlet 31 of two separation equipments is used for the product being passed through in oxidation reactor 2, and the gas outlet 32 of the second separation equipment is for arranging
Poor oxygen gas out, the discharge port 33 of the second separation equipment are used to be discharged the titanium iron ore of load oxygen.
As a kind of possible design, continuing with referring to Fig. 3, reduction reactor 2 is additionally provided with the second discharge port 25, reduction
Second discharge port 25 of reactor is used to that the product containing the titanium iron ore being reduced to be discharged.Oxidation reactor 1 is additionally provided with
Two feed inlets 13, the second charging aperture 13 of oxidation reactor are used to be passed through in reduction reactor 2 containing the titanium iron ore being reduced
Product.Second discharge port 25 of reduction reactor is connected with the second charging aperture 13 of oxidation reactor, in reduction reactor 2
In the titanium iron ore that the is reduced second charging aperture that passes through the second discharge port 25 and oxidation reactor of the reduction reactor of connection
13, it is returned to the load for continuing oxygen in oxidation reactor 1, after load is aerobic, the titanium iron ore for loading oxygen leads to again
The discharge port 33 of the first separation equipment and the first charging aperture 21 of reduction reactor are crossed, is returned in reduction reactor 2, it is anti-to restore
The coal gasification reaction in device 2 is answered to provide oxygen, in this way, titanium iron ore constantly follows between oxidation reactor 1 and reduction reactor 2
Ring, while providing oxygen for the coal gasification reaction in reduction reactor 2, due to its internal iron continuous redox and by
Mechanical dusting, convenient for the extraction of subsequent fe and titaniferous materials.
Also, during titanium iron ore recycles constantly between oxidation reactor 1 and reduction reactor 2, ilmenite
The self-contained heat of stone constantly recycles between oxidation reactor 1 and reduction reactor 2, is also achieved that the repetition benefit of heat
With advantageously reducing and then improve entire coal gasification to save cost to a certain extent by the heat that directly feeds of the external world
The economic benefit of reaction.
In addition, in some embodiments, pyrolysis, which occurs, for the raw coal in reduction reactor 2 can generate semicoke, and semicoke also can
It carries heat constantly to recycle between oxidation reactor 1 and reduction reactor 2 with titanium iron ore, to increase Ke Xunhuanliyong
Heat.
As a kind of possible design, reduction reactor 2 is additionally provided with third discharge port 26, and the third of reduction reactor goes out
Material mouth 26 be used for be discharged not only be not entrained by the flow of air in coal gasification reaction but also do not drain into oxidation reactor 1 residual product (including
Lime-ash), 2 inside temperature of reduction reactor is absorbed in 2 bottom of reduction reactor to avoid residual product (including lime-ash) long time sedimentation
It spends and causes heat waste, avoid occupying space in reduction reactor 2 and influencing coal gasification reaction efficiency.
In some embodiments, the third discharge port 26 of reduction reactor may be disposed at the bottom of reduction reactor 2, so as to
In the effective discharge for the residual product (including lime-ash) for being deposited on 2 bottom of reduction reactor.
Please continue to refer to Fig. 3, in some embodiments, the first separation equipment 4 includes level-one separator 5, for extracting
Level-one surplus materials is discharged in the fuel gas in product in reduction reactor 2.Secondary separation device 6, it is surplus for extracting level-one
Second level surplus materials is discharged in fe in excess matter.Three-level separator 7, for extracting the titaniferous in second level surplus materials
Substance.
In some embodiments, level-one separator 5 includes cyclone separator, and secondary separation device 6 is separated including magnetic separation
Device, three-level separator 7 include flotation separator and/or Gravity separation device.Cyclone separator is by the gas in reduction reactor 2
The raw rotary motion of miscarriage, isolates the product containing fe and titaniferous materials with larger centrifugal inertial force from air-flow
Come, realizes the separation (gas solid separation) of fuel gas and the product containing fe and titaniferous materials.Magnet Separater utilizes list
The high characteristic of the ferromagnetic conductance of matter, fe is gathered together, and realizes the extraction of fe.Flotation separator utilizes surfactant
The bubble extracting of generation goes out titaniferous materials.Gravity separation device using different material in second level surplus materials medium (water or other
The biggish liquid of relative density) in movement rate and direction difference, realize the extraction of titaniferous materials.
As a kind of possible design, level-one separator 5 is provided with feed inlet 51, gas outlet 52 and discharge port 53.One
The feed inlet 51 of grade separator is connected with the first discharge port 24 of reduction reactor.The feed inlet 51 of level-one separator is used
In the product for being passed through air-flow in reduction reactor and taking out of, the gas outlet 52 of level-one separator is for being discharged extracted combustible gas
Body, the discharge port 53 of level-one separator are to contain fe and titaniferous for level-one surplus materials, level-one surplus materials to be discharged
The product of substance.
As a kind of possible design, secondary separation device 6 is provided with feed inlet 61, the first discharge port 62 and the second discharging
Mouth 63.The feed inlet 61 of secondary separation device is connected with the discharge port 53 of level-one separator.The charging of secondary separation device
Mouth 61 is for being passed through level-one surplus materials.First discharge port 62 of secondary separation device is for being discharged extracted fe, and two
Second discharge port 63 of grade separator is the production containing titaniferous materials for second level surplus materials, second level surplus materials to be discharged
Object.
As a kind of possible design, three-level separator 7 is provided with feed inlet 71, the first discharge port 72 and the second discharging
Mouth 73.The feed inlet 71 of three-level separator is connected with the second discharge port 63 of secondary separation device.Three-level separator
Feed inlet 71 is for being passed through second level surplus materials.First discharge port 72 of three-level separator is for being discharged extracted titaniferous object
Matter, the second discharge port 73 of three-level separator is for being discharged ash content.It should be noted that " ash content " refers to that coal gasification is anti-
Should occur a series of physical and chemical change at high temperature, last organic principle volatilizees loss, and inorganic constituents (mainly without
Machine salt and oxide) then it left behind, these residues are known as ash content.
The foregoing is merely a specific embodiment of the invention, but scope of protection of the present invention is not limited thereto, any
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be with the scope of protection of the claims
It is quasi-.
Claims (12)
1. a kind of coal gasification method, which is characterized in that the coal gasification method includes:
Titanium iron ore is placed in oxidation reactor, oxygen-containing gas is passed through, makes the titanium iron ore that oxidation reaction occur, is born
The titanium iron ore of oxygen carrier；
The titanium iron ore of the load oxygen and raw coal are placed in reduction reactor, vapor, the ferrotianium of the load oxygen are passed through
Ore provides oxygen, and coal gasification reaction occurs for the raw coal, and the titanium iron ore of the load oxygen occurs reduction reaction and generates list
Matter iron；
A part of product in the reduction reactor is taken out of with air-flow, and the product taken out of to air-flow separates, and obtaining can
Combustion gas body, fe and titaniferous materials；
The product that air-flow is not taken out of returns in the oxidation reactor, re-starts the load of oxygen, to be re-used for described go back
Coal gasification reaction in former reactor.
2. coal gasification method according to claim 1, which is characterized in that the partial size of the titanium iron ore is 0.5~3mm,
The partial size of the raw coal is 2~10mm.
3. coal gasification method according to claim 1, which is characterized in that the gas velocity of air-flow is in the oxidation reactor
0.5~2m/s, temperature are 1000~1100 DEG C.
4. coal gasification method according to claim 1, which is characterized in that the gas velocity of air-flow is 1 in the reduction reactor
~5m/s, temperature are 700~900 DEG C.
5. coal gasification method according to claim 1, which is characterized in that in the reduction reactor taken out of with air-flow
A part of product in, the partial size of solid particle is less than or equal to 0.5mm.
6. coal gasification method according to claim 1, which is characterized in that the product taken out of to air-flow divides
From the step of obtaining fuel gas, fe and titaniferous materials, comprising:
The product taken out of to air-flow carries out gas solid separation, and extraction obtains fuel gas, and is discharged containing fe and titaniferous object
The product of matter；
Magnetic separation is carried out containing the product of fe and titaniferous materials to described, extraction obtains fe, and discharge contains titaniferous materials
Product；
Flotation and/or gravity treatment are carried out to the product containing titaniferous materials, extraction obtains titaniferous materials.
7. coal gasification method according to claim 1, which is characterized in that titanium iron ore is placed in oxidation reactor described
In, the titanium iron ore of the load oxygen and raw coal are placed in reduction reactor with described, are passed through by the step of being passed through oxygen-containing gas
Between the step of vapor, further includes: the product in the oxidation reactor is carried out gas solid separation, Poor oxygen gas is obtained and bears
The Poor oxygen gas is discharged the titanium iron ore of oxygen carrier, and the titanium iron ore of the load oxygen is passed through the reduction reactor
In.
8. coal gasification method according to claim 1, which is characterized in that the coal gasification method further include: described will go back
The reduction reactor is discharged in residual product in former reactor；Wherein, the residual product be the reduction reactor in both
The product do not taken out of and be not returned in the oxidation reactor by air-flow.
9. a kind of gasification system, which is characterized in that the gasification system includes:
Oxidation reactor obtains the titanium iron ore of load oxygen for making titanium iron ore and oxygen-containing gas that oxidation reaction occur；
Reduction reactor, for making the titanium iron ore of the load oxygen provide oxygen, coal gasification reaction, and the load occur for raw coal
The titanium iron ore of oxygen occurs reduction reaction and generates fe；
First separation equipment obtains fuel gas, list for separating the product that air-flow is taken out of in the reduction reactor
Matter iron and titaniferous materials.
10. gasification system according to claim 9, which is characterized in that the oxidation reactor is provided with for being passed through
The first charging aperture of the titanium iron ore, for being passed through the air inlet of oxygen-containing gas, and for being discharged in the oxidation reactor
Product discharge port；
The reduction reactor is provided with the first charging aperture of the titanium iron ore for being passed through the load oxygen, described for being passed through
The second charging aperture of raw coal, for being passed through the air inlet of the vapor, and for air-flow band in the reduction reactor to be discharged
First discharge port of product out；
The gasification system further include: be connected to the oxidation reactor discharge port and the reduction reactor first into
The second separation equipment between material mouth obtains Poor oxygen gas for the product in the oxidation reactor to be carried out gas solid separation
With the titanium iron ore of load oxygen, the Poor oxygen gas is discharged, and the titanium iron ore of the load oxygen is passed through the reduction instead
It answers in device.
11. gasification system according to claim 10, which is characterized in that the oxidation reactor is additionally provided with for leading to
Enter the second charging aperture for the titanium iron ore being reduced in the reduction reactor；
The reduction reactor is additionally provided with the second discharge port for the titanium iron ore being reduced to be discharged；
The oxidation reactor second charging aperture is connected with the second discharge port of the reduction reactor.
12. gasification system according to claim 9, which is characterized in that first separation equipment includes:
The cyclone separator being connected with the reduction reactor, for carrying out gas-solid point to the product in the reduction reactor
From extraction obtains fuel gas, and the product containing fe and titaniferous materials is discharged；
The Magnet Separater being connected with the cyclone separator, for being carried out to described containing the product of fe and titaniferous materials
Magnetic separation, extraction obtain fe, and the product containing titaniferous materials is discharged；
The flotation separator and/or Gravity separation device that are connected with the Magnet Separater, for described containing titaniferous materials
Product carries out flotation and/or gravity treatment, and extraction obtains titaniferous materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810940301.0A CN109054900B (en) | 2018-08-17 | 2018-08-17 | Coal gasification method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810940301.0A CN109054900B (en) | 2018-08-17 | 2018-08-17 | Coal gasification method and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109054900A true CN109054900A (en) | 2018-12-21 |
| CN109054900B CN109054900B (en) | 2020-12-29 |
Family
ID=64686285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810940301.0A Active CN109054900B (en) | 2018-08-17 | 2018-08-17 | Coal gasification method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109054900B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454134A (en) * | 2019-09-05 | 2019-11-15 | 湖南科技大学 | A kind of method of underground raw coal gasification |
| CN111996060A (en) * | 2020-09-15 | 2020-11-27 | 中国石油化工股份有限公司 | Titanium-iron ore oxygen carrier modified by perovskite structure oxide and preparation method thereof |
| CN113832280A (en) * | 2021-09-01 | 2021-12-24 | 新奥科技发展有限公司 | Method and apparatus for producing reduced ilmenite |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060207177A1 (en) * | 2003-05-29 | 2006-09-21 | Andrus Herbert E Jr | Hot solids gasifier with co2 removal and hydrogen production |
| CN101875483A (en) * | 2009-04-29 | 2010-11-03 | Ifp公司 | Integrated process for production of energy and/or synthesis gas by production of oxygen in situ, combustion and gasification in a chemical cycle |
| CN101896581A (en) * | 2007-12-12 | 2010-11-24 | 奥图泰有限公司 | Process and plant for producing char and fuel gas |
| CN101891147A (en) * | 2010-08-11 | 2010-11-24 | 华北电力大学 | Solid fuel fluidized bed near-zero emission hydrogen generating device |
| US20100325958A1 (en) * | 2009-06-30 | 2010-12-30 | Jennifer Lynn Molaison | Method and Apparatus for Removal of Carbon Dioxide from Pre-Combustion Syngas |
| CN103060003A (en) * | 2012-12-27 | 2013-04-24 | 东南大学 | Method and device for preparing H2 and separating CO2 based on calcium-based sorbent |
| CN203333695U (en) * | 2013-05-23 | 2013-12-11 | 北京神雾环境能源科技集团股份有限公司 | Cold-feeding conveying-bed smelting system for preparing reducing gas through medium-level and low-level coal gasification |
| CN104848207A (en) * | 2015-04-07 | 2015-08-19 | 东南大学 | Chemical looping combustion device for solid fuel grading oxidation and method thereof |
| CN106244241A (en) * | 2016-07-19 | 2016-12-21 | 东南大学 | A kind of coal gasification preparing synthetic gas and chemical chain oxygen hydrogen manufacturing combined cycle power plant and method |
| WO2017111614A1 (en) * | 2015-12-22 | 2017-06-29 | Institutt For Energiteknikk | Sustainable oxygen carriers for chemical looping combustion with oxygen uncoupling and methods for their manufacture |
| CN107142125A (en) * | 2017-06-07 | 2017-09-08 | 中国科学院广州能源研究所 | A kind of sludge chemical chain gasification orientation produces synthetic gas method and realizes the device of this method |
| CN107523361A (en) * | 2017-09-26 | 2017-12-29 | 中国科学院广州能源研究所 | High nitrogen antibiotic bacterium dregs prepare the process and system of low nitrogen biological fuel gas |
| CN207193218U (en) * | 2017-08-01 | 2018-04-06 | 东北大学 | A kind of biomass char vaporizing system for synthesis gas system |
-
2018
- 2018-08-17 CN CN201810940301.0A patent/CN109054900B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060207177A1 (en) * | 2003-05-29 | 2006-09-21 | Andrus Herbert E Jr | Hot solids gasifier with co2 removal and hydrogen production |
| CN101896581A (en) * | 2007-12-12 | 2010-11-24 | 奥图泰有限公司 | Process and plant for producing char and fuel gas |
| CN101875483A (en) * | 2009-04-29 | 2010-11-03 | Ifp公司 | Integrated process for production of energy and/or synthesis gas by production of oxygen in situ, combustion and gasification in a chemical cycle |
| US20100299997A1 (en) * | 2009-04-29 | 2010-12-02 | Hoteit Ali | Integrated energy and/or synthesis gas production method by in-situ oxygen production, chemical looping combustion and gasification |
| US20100325958A1 (en) * | 2009-06-30 | 2010-12-30 | Jennifer Lynn Molaison | Method and Apparatus for Removal of Carbon Dioxide from Pre-Combustion Syngas |
| CN101891147A (en) * | 2010-08-11 | 2010-11-24 | 华北电力大学 | Solid fuel fluidized bed near-zero emission hydrogen generating device |
| CN103060003A (en) * | 2012-12-27 | 2013-04-24 | 东南大学 | Method and device for preparing H2 and separating CO2 based on calcium-based sorbent |
| CN203333695U (en) * | 2013-05-23 | 2013-12-11 | 北京神雾环境能源科技集团股份有限公司 | Cold-feeding conveying-bed smelting system for preparing reducing gas through medium-level and low-level coal gasification |
| CN104848207A (en) * | 2015-04-07 | 2015-08-19 | 东南大学 | Chemical looping combustion device for solid fuel grading oxidation and method thereof |
| WO2017111614A1 (en) * | 2015-12-22 | 2017-06-29 | Institutt For Energiteknikk | Sustainable oxygen carriers for chemical looping combustion with oxygen uncoupling and methods for their manufacture |
| CN106244241A (en) * | 2016-07-19 | 2016-12-21 | 东南大学 | A kind of coal gasification preparing synthetic gas and chemical chain oxygen hydrogen manufacturing combined cycle power plant and method |
| CN107142125A (en) * | 2017-06-07 | 2017-09-08 | 中国科学院广州能源研究所 | A kind of sludge chemical chain gasification orientation produces synthetic gas method and realizes the device of this method |
| CN207193218U (en) * | 2017-08-01 | 2018-04-06 | 东北大学 | A kind of biomass char vaporizing system for synthesis gas system |
| CN107523361A (en) * | 2017-09-26 | 2017-12-29 | 中国科学院广州能源研究所 | High nitrogen antibiotic bacterium dregs prepare the process and system of low nitrogen biological fuel gas |
Non-Patent Citations (2)
| Title |
|---|
| 谢克昌等: "《化石能源的清洁高效可持续开发利用：第二届"中国工程院/国家能源局论坛"论文集》", 31 December 2012, 煤炭工业出版社 * |
| 骆仲泱等: "《二氧化碳捕集封存和利用技术》", 31 May 2012, 中国电力出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454134A (en) * | 2019-09-05 | 2019-11-15 | 湖南科技大学 | A kind of method of underground raw coal gasification |
| CN111996060A (en) * | 2020-09-15 | 2020-11-27 | 中国石油化工股份有限公司 | Titanium-iron ore oxygen carrier modified by perovskite structure oxide and preparation method thereof |
| CN113832280A (en) * | 2021-09-01 | 2021-12-24 | 新奥科技发展有限公司 | Method and apparatus for producing reduced ilmenite |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109054900B (en) | 2020-12-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109054900A (en) | A kind of coal gasification method and system | |
| CN106399699B (en) | A kind of handling process of copper-contained sludge | |
| EP2957645B1 (en) | Method for producing crude copper | |
| CN106282546B (en) | A kind of smoke gas circulating type prereduction sintering process | |
| CN107952588A (en) | The technique that carbon is recycled in coal gasification lime-ash | |
| CN102851414A (en) | Treatment technique of blast furnace fly ash | |
| CN107399739A (en) | A kind of environmental protection and energy saving Purification of Diatomite method | |
| CN1035334C (en) | Continuous producting of iron-carbon alloy using iron carbide | |
| CN104148164A (en) | Method for coal washing by means of carbon dioxide | |
| CN105273764A (en) | Coal gasification apparatus and coal gasification method | |
| JP2013122084A (en) | Ironworks operation method and carbon dioxide gas decomposition device | |
| CN103357507A (en) | Brown coal floatation method | |
| CN106085508A (en) | A kind of catalytic coal gasifaction method | |
| Liu et al. | Enhancement effects of distiller's dried grains as reducing agents on the kinetics and leaching of pyrolusite from manganese ore | |
| CN107312572A (en) | A kind of catalytic coal gasifaction method | |
| CN101941783B (en) | Method for washing carbon for removing sodium from silicon-removed alkaline residues of coal ash or basic red mud after process of extracting Al2O3 | |
| CN110358909A (en) | A kind of green high-efficient utilizes the method for carbon and preenrichment vanadium in high-carbon type Rock coal containing alum | |
| Zhu et al. | Research on steelmaking dust based on difference of Mn, Fe and Mo vapor pressure | |
| CN110172362A (en) | A kind of catalytic coal gasifaction method | |
| CN101891407A (en) | Method for vibrating, fluidizing and decomposing phosphogypsum | |
| CN106282595B (en) | Exploitation of gold deposit and processing method | |
| CN103521358A (en) | Method for preprocessing copper and molybdenum bulk concentrates before separation flotation | |
| CN114657391A (en) | Lead carbide-free metallurgy device and method | |
| CN106044825A (en) | Treating method for waste sulfuric acid | |
| CN203196750U (en) | Tailing zone medium recovery equipment for heavy medium washing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |