CN105062526A - Coal pyrolysis gasification poly-generation system and pyrolysis gasification method thereof - Google Patents
Coal pyrolysis gasification poly-generation system and pyrolysis gasification method thereof Download PDFInfo
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- 239000003245 coal Substances 0.000 title claims abstract description 179
- 238000000197 pyrolysis Methods 0.000 title claims abstract description 78
- 238000002309 gasification Methods 0.000 title claims abstract description 64
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 24
- 239000000571 coke Substances 0.000 claims description 17
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 10
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Abstract
The invention relates to a coal pyrolysis gasification poly-generation system and a pyrolysis gasification method thereof, wherein the system comprises a coal drying device, a coal grinding device, a coal pressurizing and conveying device, a coal pyrolysis device, a gas-solid separation device, a deep cooling separation device and a synthesis device which are sequentially connected; the gas-solid separation device is also respectively connected with the pressure raising device and the gasification furnace; the pressure raising device and the gasification furnace are also respectively connected with a temperature and pressure reducing device; the temperature and pressure reducing device is also connected with the coal pyrolysis device. The energy consumption is reduced, the environmental protection performance is good, the coal adaptability is good, the processing and the manufacturing of equipment are convenient, the potential safety hazard is eliminated, and the effect is improved.
Description
Technical field
The invention belongs to pyrolysis of coal and gasification technology field, relate to a kind of coal pyrolytic gasified polygenerations systeme and pyrolysis gasification method thereof.
Background technology
China is big coal country of the world, Ye Shi consumption of coal big country.With regard to endowment of resources, the feature that China's primary energy source has " oil-poor, weak breath, rich coal ".Within 2010, coal resources in China proven reserve account for 93.3% of China's fossil energy, and coal is the most reliable energy ensureing that Chinese energy safety is supplied at present, are also simultaneously present stage the most cheap available energy.The energy reserve of China, production and consumption structures shape coal are still the main energy sources of China within one period from now on.The development of Coal Gasification Technology has the history of over one hundred year, define the multiple technologies schools such as fixed bed, air flow bed, fluidized-bed gradually, air-flow bed coal-gasification technology because of its gasification temperature high, vapor pressure is large, bed journey flow velocity is fast, and having that efficiency is high, scale is large, coal adaptability is good, efficiency of carbon conversion advantages of higher, progressively becomes the optimization technique of coal conversion; The shortcomings such as it is low that but it also exists cold gas efficiency, and synthetic gas sensible heat utilization is insufficient; Especially coal is particularly in long-flame coal, brown coal, this just contains the chemical substance of a large amount of high heating value, as methane, tar and carbon monoxide, hydrogen etc., these materials are all converted into the basic substance chemical compositions such as carbon monoxide, hydrogen, carbonic acid gas in high-temperature gasification process, through purification, synthesize more complicated material, methyl alcohol, dme, ethanol and olefines chemical, waste huge energy and the discharge of adjoint large quantity of exhaust gas.
Pyrolysis of coal typically refers to raw coal under isolated air or inert atmosphere conditions, carries out the heat temperature raising that continues and ensures do not have katalysis, the change of the series of physical occurred in this course and chemistry.Make coal through pyrolytic reaction, the Chemicals of production comprise the coal gas of pyrolysis, tar or phenolic product, coke or semicoke (blue charcoal).The engineering of existing multiple pyrolysis of coal technology, particularly practical application, does not solve the technical problems such as energy consumption is high, environmental pollution large, coal adaptability is bad all the time very well.
Number of patent application is " 201410257589.3 ", name is called the Chinese invention patent application of " a kind of pulverized coal pyrolysis and gasification process ", disclose a kind of method of fine coal and gasification, it adopts two-stage gasifier, (namely air flow bed char Gasification stove and air flow bed pulverized coal pyrolysis stove are divided into two sections), if well-known airflow bed gasification furnace needs to reach good carbon conversion efficiency, need higher gasification temperature, to realize the abundant gasification of coal (semicoke), the feature wherein describing gasification temperature is 1200 ~ 1600 DEG C; The high temperature of 1200 ~ 1600 DEG C will produce following many adverse influences to pyrolytic process: high temperature can cause the twice decomposition of the contour value-added product of tar, and the processing and manufacturing difficulty of the equipment such as reactor valves improves greatly, the most key is that too high pyrolysis temperature brings great potential safety hazard to whole technological process; And it is provided with waste heat boiler in pyrolysis section outlet, as everyone knows, in pyrolysis of coal process, a large amount of tar class products can be produced, according to its technical process, these tar class products and semicoke, pyrolysis gas etc. mix, after entering waste heat boiler, these materials release sensible heat also reduces temperature, and now tar-like substance will be separated out because of cooling, with semicoke pickup in useless pot, thus cause very disadvantageous effect.
On the whole, pyrolysis of coal of the prior art and gasification instrument and supplies method exist that energy consumption is high, environmental pollution large, coal adaptability is bad more, and the processing and manufacturing difficulty of equipment is large, potential safety hazard is comparatively large, the problems such as effect is poor, for this reason, need a kind of coal pyrolytic gasified polygenerations systeme and pyrolysis gasification method thereof, solve the problems referred to above existing in prior art, can reduction be consumed, good environmental protection, coal adaptability is good, facilitate the processing and manufacturing of equipment, eliminate safe hidden trouble, improve effect.
Summary of the invention
The object of the present invention is to provide a kind of coal pyrolytic gasified polygenerations systeme and pyrolysis gasification method thereof, energy consumption existing in solution prior art is high, environmental pollution large, coal adaptability is bad, the processing and manufacturing difficulty of equipment is large, and potential safety hazard is comparatively large, the problems such as effect is poor, reduction can be consumed, good environmental protection, coal adaptability is good, facilitates the processing and manufacturing of equipment, eliminate safe hidden trouble, improve effect.
For achieving the above object, one aspect of the present invention provides a kind of coal pyrolytic gasified polygenerations systeme, comprises the coal drying installation, coal-grinding apparatus, coal pressure conveyer device, pyrolysis of coal device, gas-solid separating device, cryogenic separation device and the synthesizer that connect successively; Gas-solid separating device is also connected with vapourizing furnace with pressure-raising device respectively; Pressure-raising device and vapourizing furnace are also connected with desuperheat step-down transformer respectively; Desuperheat step-down transformer is also connected with pyrolysis of coal device.
In above scheme preferably, semicoke feeding unit is connected with between vapourizing furnace and gas-solid separating device.
Can also preferably, pressure-raising device adopts gas boosting device.
Can also preferably, cryogenic separation device is connected with tar recovery system.
Can also preferably, pressure-raising device adopts circulation gas increasing apparatus.
Can also preferably, vapourizing furnace adopts coal slurry gasifier, airflow bed gasification furnace or circle fluidized-bed gasification furnace, and coal, oxygenant and auxiliary agent are mixed combining combustion or incomplete combustion by it, generates high-temperature synthesis gas, lime-ash.
The present invention provides a kind of pyrolysis gasification method of coal pyrolytic gasified polygenerations systeme on the other hand, first, utilize coal drying installation by moisture removal in raw coal, and by the raw coal input coal-grinding apparatus after dehydration, the raw coal after dehydration is ground the fine coal becoming uniform granularity, then, fine coal is inputted in coal pressure conveyer device, carry out pressure rising, and the fine coal after being raised by pressure is conveyed in pyrolysis of coal device, in pyrolysis of coal device, the high-temperature synthesis gas originating from vapourizing furnace fully mixes and heat exchange with fine coal, fine coal carries out pyrolysis after temperature improves, generate semicoke and pyrolyzed components, synthetic gas after semicoke and pyrolyzed components and cooling mixes, and the synthetic gas after semicoke and pyrolyzed components and cooling is input in gas-solid separating device, be separated into gaseous fraction and solid ingredient, solid ingredient and high-temperature semi-coke thing, again high-temperature semi-coke thing is delivered to vapourizing furnace, high-temperature semi-coke thing and oxygenant and auxiliary agent thereof are carried out high-temperature gasification, generate synthetic gas and lime-ash, and the high-temperature synthesis gas after high-temperature gasification and lime-ash are discharged the body of heater of vapourizing furnace, the high-temperature synthesis gas of generation is delivered to pyrolysis of coal device, and make the isolated gas part of gas-solid separating device loop back vapourizing furnace as Quench gas by pressure-raising device, a part enters cryogenic separation device and isolates tar and methane content, and remaining crude synthesis gas enters synthesizer.
In above scheme preferably, utilize coal drying installation by moisture removal in raw coal, make moisture removal to 15% of former moisture in coal.
Can also preferably, raw coal adopts lump coal or fine coal.
Preferably, remaining crude synthesis gas can also be entered synthesizer synthesizing methane or synthetic ammonia.
Compared with prior art, the present invention has the following advantages:
The invention provides a kind of coal pyrolytic gasified polygenerations systeme and pyrolysis gasification method thereof, energy consumption existing for can solving in prior art is high, environmental pollution large, coal adaptability is bad, the processing and manufacturing difficulty of equipment is large, and potential safety hazard is comparatively large, the problems such as effect is poor; It realizes coal, particularly the low-rank coal such as brown coal, mud coal, coal gangue carries out drying, pyrolysis, gasification, sepn process on the spot, extract coal part volatile matter and tar component, produce the raw material of high-temperature semi-coke as gasification, and then carry out gasification generation high-temperature synthesis gas, as the source of pyrolysis, gasification and the interdependence of pyrolysis of coal unit, cooperatively interact, reach material, the energy distribute use rationally, reduce and pollute, improve productive rate, make full use of heat, simultaneity factor is simple to operate, controllability is good, and plant running is stablized; And energy consumption reduces, good environmental protection, and coal adaptability is good, facilitates the processing and manufacturing of equipment, eliminates safe hidden trouble, improve effect.Compared with prior art, the huge heat that the present invention can effectively utilize gasification to produce, the thermal source as pyrolysis of coal makes full use of, and the high-temperature semi-coke that pyrolysis produces is as the raw material of gasification, avoids quenching process, thus saves mass energy.Its major advantage is: low-rank coal smalls can be utilized as raw material, the multiple high pyrolysis product of gasification and pyrolysis by-product, and energy is economized, good environmental protection, does not have quenching process, decreases the discharge of sewage, waste gas and heat energy.Being applicable to low-rank coal is particularly the chemical such as raw material methyl alcohol, synthetic ammonia for the low-rank coal such as brown coal, mud coal and long-flame coal, bituminous coal etc., and by-product tar, methane etc.; Its overall thermal efficiency is high, is convenient to remove coal pollutent; It improves the comprehensive utilization ratio of coal resources, and is conducive to environment protection.
Accompanying drawing explanation
Fig. 1 is the structural representation of coal pyrolytic gasified polygenerations systeme of the present invention;
Fig. 2 is the process flow sheet of the pyrolytic gasification of coal pyrolytic gasified polygenerations systeme of the present invention.
In figure, 1 is coal drying installation, and 2 is coal-grinding apparatus, and 3 is coal pressure conveyer device, and 4 is pyrolysis of coal device, and 5 is gas-solid separating device, and 6 is vapourizing furnace, and 7 is pressure-raising device, and 8 is cryogenic separation device, and 9 is synthesizer, and 10 is desuperheat step-down transformer.
Embodiment
In order to understand the present invention better, below in conjunction with specific embodiment, the present invention is explained in detail.But, obviously can carry out different modification and remodeling to the present invention and not exceed the wider spirit and scope of the present invention of appended claims.Therefore, following examples have exemplary and hard-core implication.
Embodiment 1:
A kind of coal pyrolytic gasified polygenerations systeme, comprises the coal drying installation 1, coal-grinding apparatus 2, coal pressure conveyer device 3, pyrolysis of coal device 4, gas-solid separating device 5, cryogenic separation device 8 and the synthesizer 9 that connect successively; Gas-solid separating device 5 is also connected with vapourizing furnace 6 with pressure-raising device 7 respectively; Pressure-raising device 7 is also connected with desuperheat step-down transformer 10 respectively with vapourizing furnace 6; Desuperheat step-down transformer 10 is also connected with pyrolysis of coal device 4.
In the above-described embodiments, semicoke feeding unit is connected with between vapourizing furnace 6 and gas-solid separating device 5.
In the above-described embodiments, pressure-raising device 7 adopts gas boosting device 7.
In the above-described embodiments, cryogenic separation device 8 is connected with tar recovery system.
In the above-described embodiments, pressure-raising device 7 adopts circulation gas increasing apparatus.
In the above-described embodiments, vapourizing furnace 6 is connected with desuperheat step-down transformer.
Embodiment 2:
A kind of pyrolysis gasification method of coal pyrolytic gasified polygenerations systeme, adopt coal pyrolytic gasified polygenerations systeme as described in Example 1, first, utilize coal drying installation 1 by moisture removal in raw coal, and by the raw coal input coal-grinding apparatus 2 after dehydration, the raw coal after dehydration is ground the fine coal becoming uniform granularity, then, fine coal is inputted in coal pressure conveyer device 3, carry out pressure rising, and the fine coal after being raised by pressure is conveyed in pyrolysis of coal device 4, in pyrolysis of coal device 4, the high-temperature synthesis gas originating from vapourizing furnace 6 fully mixes and heat exchange with fine coal, fine coal carries out pyrolysis after temperature improves, generate semicoke and pyrolyzed components, synthetic gas after semicoke and pyrolyzed components and cooling mixes, and the synthetic gas after semicoke and pyrolyzed components and cooling is input in gas-solid separating device 5, be separated into gaseous fraction and solid ingredient, solid ingredient and high-temperature semi-coke thing, again high-temperature semi-coke thing is delivered to vapourizing furnace 6, high-temperature semi-coke thing and oxygenant and auxiliary agent thereof are carried out high-temperature gasification, generate lime-ash, and the high-temperature synthesis gas after high-temperature gasification and lime-ash are discharged the body of heater of vapourizing furnace 6, the high-temperature synthesis gas of generation is delivered to pyrolysis of coal device 4, and make the isolated gas part of gas-solid separating device 5 loop back vapourizing furnace 6 as Quench gas by pressure-raising device 7, a part enters cryogenic separation device 8 and isolates tar and methane content, and remaining crude synthesis gas enters synthesizer 9.
In the above-described embodiments, utilize coal drying installation 1 by moisture removal in raw coal, make moisture removal to 15% of former moisture in coal.
In the above-described embodiments, raw coal adopts lump coal or fine coal.
In the above-described embodiments, remaining crude synthesis gas is entered synthesizer 9 synthesizing methane or synthetic ammonia.
As depicted in figs. 1 and 2, the present invention utilizes coal drying installation 1 to be removed by moisture in coal; Coal-grinding apparatus 2 is utilized coal to be ground into the device of certain granules degree; Utilize coal pressure conveyer device 3 pairs of coals to pressurize, and by strength or machinery, coal is carried; Utilize pyrolysis of coal device 4 to use outside heat to heat coal, namely directly contacted with feed coal by high temperature gas mixture, the component such as volatile matter and tar is separated out in coal pyrolysis in heat-processed, generates semicoke; Gas-solid separating device 5 is utilized to adopt cyclonic separator, fly-ash filter, sack cleaner, electric precipitator etc. to be separated with solid by gas; Utilizing vapourizing furnace 6 that coal, oxygenant and other auxiliary agents are mixed combining combustion or incomplete combustion, generating high-temperature synthesis gas, lime-ash, as utilized coal slurry gasifier 6, airflow bed gasification furnace 6, circle fluidized-bed gasification furnace 6 etc.; Pressure-raising device 7 is utilized low-pressure gas to be improved mechanical means or the structure of pressure, as gas compressor, injector, surge tank, lock hopper etc.
The present invention passes through the pyrolysis of coal and the organic assembling of gasification, pyrolysis thermal source is made all to come from the crude synthesis gas of gasification generation, both the sensible heat that make use of gasification product carries out the pyrolysis of raw coal, turn avoid the burnt process of breath, the semicoke of high temperature directly enters vapourizing furnace 6, improve gasification output, significantly improve the comprehensive utilization ratio of coal; Product after its pyrolysis, high-temperature semi-coke, does not need to carry out quenching temperature-fall period, directly enters the raw material of vapourizing furnace 6 as gasification, saves energy, improve gasification temperature and efficiency; Its raw coal carries out pyrolysis and gasification after completing coal-grinding, pressurization, and avoid high-temperature semi-coke and add and be pressed with very large difficulty, the crude synthesis gas of high temperature, high pressure and fine coal carry out direct heat exchange, have high heat exchange efficiency; In its crude synthesis gas, the semicoke blending of the thin lime-ash of carbon containing directly and after pyrolysis, by again getting back to vapourizing furnace 6 after gas solid separation, carries out cycle gasification, improves the efficiency of carbon conversion of gasification system; Its crude synthesis gas and coal are in pyrolysis of coal device 4, and carry out heat exchange by the mode directly contacted, material dispersion is effective, and heat exchange efficiency is high, good effect of heat exchange, and does not need heat exchanger structure, as long as one section of space of carrying out mixing is as heat exchange bed journey; Its partial thermal decomposition gas loops back vapourizing furnace 6 through pressure-raising device 7, and mix with the synthetic gas that vapourizing furnace 6 produces, realize the effect of Quench cooling, by regulating and controlling this part tolerance, further realization is to the control of pyrolysis oven internal temperature, and at different temperatures, different pyrolysis of coal products can be obtained; Its raw coal adopts the mode of power feed to enter pyrolysis of coal device 4 after coal-grinding, pressurization, compares carrier gas mode of movement, can energy efficient, and significantly reduces rear end gas-solid separating device 5 treatment capacity.
The present invention, at the outlet high-temperature synthesis gas section place of vapourizing furnace 6, has carried out gas Quench, and will fill into a large amount of cold cycle synthetic gas in high-temperature synthesis gas, by controlling tolerance, regulating the temperature in heat stage further, and making temperature field reach even.Solve following problem existing in prior art: if airflow bed gasification furnace 6 needs to reach good carbon conversion efficiency, need higher gasification temperature, the feature of existing gasification temperature is 1200 ~ 1600 DEG C, the high temperature of 200 ~ 1600 DEG C will produce many adverse influences to pyrolytic process: high temperature can cause the twice decomposition of the contour value-added product of tar, and the processing and manufacturing difficulty of the equipment such as reactor valves improves greatly, the most key is that too high pyrolysis temperature brings great potential safety hazard to whole technological process.
The present invention adopts the coal pressure conveyer device 3 of mechanical system that fine coal is delivered to pyrolysis section, the carrier gas mode of movement compared to existing technology, can energy-conservation about 65%, and greatly reduces rear end gas-solid separating device 5 treatment capacity.
The present invention, after pyrolysis of coal, carries out the gas solid separation of semicoke, synthetic gas, and the sensible heat of semicoke brings vapourizing furnace 6 into, and the sensible heat of synthetic gas is recycled by waste heat boiler; Solve following problem existing in prior art: in pyrolysis of coal process, a large amount of tar class products can be produced, these tar class products and semicoke, pyrolysis gas etc. mix, after entering waste heat boiler, these materials release sensible heat also reduces temperature, now tar-like substance will be separated out because of cooling, with semicoke pickup in useless pot, thus cause very disadvantageous effect.
The invention enables through fine coal that is predrying, coal-grinding, enter pyrolysis of coal device 4 by coal pressure conveyer device 3, the high-temperature synthesis gas of producing with vapourizing furnace 6 mixes, and heats upgrading.Raw coal generates the pyrolyzed components such as semicoke, tar and methane, carbon monoxide, hydrogen after pyrolysis, mixes with synthetic gas; Then enter gas-solid separating device 5, isolate high-temperature semi-coke and synthetic gas, high-temperature semi-coke is transported into vapourizing furnace 6 and gasifies, and generates synthetic gas and coal ash, and synthetic gas imports the thermal source of pyrolysis of coal device 4 as raw coal pyrolysis, and coal ash discharges system.Carried out the separation and acquisition of component by the way of physics or chemistry by the synthetic gas after gas solid separation, output methane (LNG), tar, low-quality wet goods product and (CO+H2), (CO+H2) carries out the products such as synthesizing methanol, synthetic ammonia, ethanol, methane further.
The heat of the high-temperature synthesis gas that coal utilization gasification produces is carried out pyrolysis by the present invention; and the product semicoke after pyrolysis is gasified; pyrolysis gas extracts high heating value component; as the benefit materials such as tar, methane; high-temperature semi-coke is as the raw material of gasification; thus improve the comprehensive utilization ratio of coal resources, and be conducive to environment protection.
Claims (10)
1. a coal pyrolytic gasified polygenerations systeme, comprises the coal drying installation (1), coal-grinding apparatus (2), coal pressure conveyer device (3), pyrolysis of coal device (4), gas-solid separating device (5), cryogenic separation device (8) and the synthesizer (9) that connect successively; It is characterized in that: gas-solid separating device (5) is also connected with vapourizing furnace (6) with pressure-raising device (7) respectively; Pressure-raising device (7) is also connected with desuperheat step-down transformer (10) respectively with vapourizing furnace (6); Desuperheat step-down transformer (10) is also connected with pyrolysis of coal device (4).
2. coal pyrolytic gasified polygenerations systeme as claimed in claim 1, is characterized in that: be connected with semicoke feeding unit between vapourizing furnace (6) and gas-solid separating device (5).
3. coal pyrolytic gasified polygenerations systeme as claimed in claim 2, is characterized in that: pressure-raising device (7) adopts gas boosting device (7).
4. coal pyrolytic gasified polygenerations systeme as claimed in claim 3, is characterized in that: cryogenic separation device (8) is connected with tar recovery system.
5. coal pyrolytic gasified polygenerations systeme as claimed in claim 1, is characterized in that: pressure-raising device (7) adopts circulation gas increasing apparatus.
6. coal pyrolytic gasified polygenerations systeme as claimed in claim 1, it is characterized in that: vapourizing furnace (6) adopts coal slurry gasifier, airflow bed gasification furnace or circle fluidized-bed gasification furnace, coal, oxygenant and auxiliary agent are mixed combining combustion or incomplete combustion by it, generate high-temperature synthesis gas, lime-ash.
7. the pyrolysis gasification method of a coal pyrolytic gasified polygenerations systeme, first, utilize coal drying installation (1) by moisture removal in raw coal, and by raw coal input coal-grinding apparatus (2) after dehydration, the raw coal after dehydration is ground the fine coal becoming uniform granularity, then, fine coal is inputted in coal pressure conveyer device (3), carry out pressure rising, and the fine coal after being raised by pressure is conveyed in pyrolysis of coal device (4), in pyrolysis of coal device (4), the high-temperature synthesis gas originating from vapourizing furnace (6) fully mixes and heat exchange with fine coal, fine coal carries out pyrolysis after temperature improves, generate semicoke and pyrolyzed components, synthetic gas after semicoke and pyrolyzed components and cooling mixes, and the synthetic gas after semicoke and pyrolyzed components and cooling is input in gas-solid separating device (5), be separated into gaseous fraction and solid ingredient, solid ingredient and high-temperature semi-coke thing, again high-temperature semi-coke thing is delivered to vapourizing furnace (6), high-temperature semi-coke thing and oxygenant and auxiliary agent thereof are carried out high-temperature gasification, generate synthetic gas and lime-ash, and the high-temperature synthesis gas after high-temperature gasification and lime-ash are discharged the body of heater of vapourizing furnace (6), the high-temperature synthesis gas of generation is delivered to pyrolysis of coal device (4), and make the isolated gas part of gas-solid separating device (5) loop back vapourizing furnace (6) as Quench gas by pressure-raising device (7), a part enters cryogenic separation device (8) and isolates tar and methane content, and remaining crude synthesis gas enters synthesizer (9).
8. the pyrolysis gasification method of coal pyrolytic gasified polygenerations systeme as claimed in claim 7, is characterized in that: utilize coal drying installation (1) by moisture removal in raw coal, makes moisture removal to 15% of former moisture in coal.
9. the pyrolysis gasification method of coal pyrolytic gasified polygenerations systeme as claimed in claim 8, is characterized in that: raw coal adopts lump coal or fine coal.
10. the pyrolysis gasification method of coal pyrolytic gasified polygenerations systeme as claimed in claim 7, is characterized in that: remaining crude synthesis gas is entered synthesizer (9) synthesizing methane or synthetic ammonia.
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| CN107090315A (en) * | 2017-05-26 | 2017-08-25 | 上海锅炉厂有限公司 | A kind of biomass double bed gasification and pyrolysis coupled electricity-generation system and method |
| CN107267217A (en) * | 2017-08-04 | 2017-10-20 | 陈军武 | Biomass carbonization Quick-gasifying system |
| CN107723031A (en) * | 2017-11-23 | 2018-02-23 | 航天长征化学工程股份有限公司 | High-pressure gasification and pyrolysis integrated device for pulverized coal |
| CN110846079A (en) * | 2019-11-20 | 2020-02-28 | 西安交通大学 | Solar-driven lignite poly-generation upgrading system and operation method |
| CN111621340A (en) * | 2020-06-02 | 2020-09-04 | 新奥科技发展有限公司 | High-efficiency catalytic gasification system and method for coal |
| CN111621333A (en) * | 2020-06-02 | 2020-09-04 | 新奥科技发展有限公司 | Catalytic coal gasification process |
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| CN110846079A (en) * | 2019-11-20 | 2020-02-28 | 西安交通大学 | Solar-driven lignite poly-generation upgrading system and operation method |
| CN111621340A (en) * | 2020-06-02 | 2020-09-04 | 新奥科技发展有限公司 | High-efficiency catalytic gasification system and method for coal |
| CN111621333A (en) * | 2020-06-02 | 2020-09-04 | 新奥科技发展有限公司 | Catalytic coal gasification process |
| CN111621340B (en) * | 2020-06-02 | 2022-01-28 | 新奥科技发展有限公司 | High-efficiency catalytic gasification system and method for coal |
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