CN106276901A - A kind of oxygen full-boiled process produces carbide and the method and system of CO gas - Google Patents
A kind of oxygen full-boiled process produces carbide and the method and system of CO gas Download PDFInfo
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- CN106276901A CN106276901A CN201510280466.6A CN201510280466A CN106276901A CN 106276901 A CN106276901 A CN 106276901A CN 201510280466 A CN201510280466 A CN 201510280466A CN 106276901 A CN106276901 A CN 106276901A
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The invention discloses a kind of oxygen full-boiled process and produce carbide and the method and system of CO gas.The method is: coal dust enters high temperature reaction stove top through turbulent burner, with high temperature oxygen-containing gas, fully burning occurs；Carbon raw material and calcium raw material grinding mill carry out pyroreaction by noble gas after making powder body in high temperature reaction stove sidepiece entrance stove；The carbide product that reaction generates at high temperature forms liquid melt state, and melted carbide forms carbide product after waste-heat recovery device cools down.The side-product produced in described high temperature reaction stove enters mixed gas passage through stove lower position, adds carbon and the CO in side-product in this mixed gas passage2Reaction generates CO, is then passed through heat exchanger and decontaminating separator, it is thus achieved that CO product.Utilizing the process of the present invention, coal dust enters reacting furnace through turbulent burner and fully burns, and forms higher temperature, makes raw material carry out highly effective reaction, and obtain side-product CO, it is achieved carbide and the purpose of CO coproduction.
Description
Technical field
The invention belongs to technical field of calcium carbide production, be specifically related to a kind of oxygen full-boiled process and produce carbide and CO
The method and system of gas.
Background technology
Acetylenogen. is commonly called as carbide (CaC2), it was described as the mother of organic synthesis before the middle of last century.Currently mainly
For producing the series of products such as chlorovinyl, vinyl acetate base and acrylic, such as China about 70%
PVC (polyvinyl chloride) produces and comes from carbide acetylene.In recent years, the surging of oil price have stimulated carbide
Industrial expansion, China's carbide yield is increased to 19,000,000 tons in 2012 by 4,250,000 tons of 2002.
Traditional carbide produces and uses fixed bed-arc process, utilizes the high temperature that electric arc produces by fixed bed (also
Claim moving bed or electric furnace) in bulk be heated to more than 2000 DEG C containing calcium oxide and block coke, stop one
Fix time and generate molten state carbide.In production process, the mixture of calcium oxide and coke is added by electric furnace upper end
Entering, the CO that the two reaction generates is discharged from upper of furnace body by lump material gap, melted product carbide
Discharged by furnace bottom, cooled, broken after obtain finished product.Arc process uses the heating of high-grade electric energy, energy
Consume the highest.It is reported that the average current drain of China's 1 ton of carbide of production reaches 3250kW/h, wherein, about 60%
For raw material heating and reaction, about 40% is taken away by high temperature calcium carbide furnace gas (including CO) emptying.Except this with
Outward, electric furnace constructs complexity, is difficult to amplification, consumed electrode greatly, causes input and operating cost the highest.
The problem producing " high investment, high energy consumption, high pollution " for solving carbide, existing research and utilization oxygen
Full-boiled process prepares carbide, and the synthesis technique currently with oxygen full-boiled process is block stock mixed feeding mostly, utilizes
Fuel (solid fuel, liquid fuel or gaseous fuel) burning provides heat, and oxygen full-boiled process synthesis carbide can
To significantly reduce energy consumption, there is positive energy strategy meaning, but block stock charging easily causes contact
Abundant not, the problem such as residing time in furnace length, increase energy consumption；Granular material can allow material effectively connect
Touching, the response time is short.It addition, the by-product flue gas produced in current oxygen full-boiled process production carbide technique is past
Toward excluding as waste gas, on the one hand cause the wasting of resources, on the other hand to environment.Therefore,
It is significant that a kind of Novel oxygen full-boiled process of research catalyzes and synthesizes carbide technique.
Summary of the invention
It is an object of the present invention to provide a kind of oxygen full-boiled process and produce carbide and the method and system of CO gas,
Mainly solve the highest and reaction generation the flue gas of the reaction efficiency of oxygen full-boiled process production carbide in prior art secondary
The technical problem that product is not fully utilized.
The present invention solves that the technical scheme that above-mentioned technical problem is used is as follows:
A kind of oxygen full-boiled process produces carbide and the method for CO gas, and the method is: coal dust fires through eddy flow
Burner enters high temperature reaction stove top, with the high temperature oxygen-containing gas entering reacting furnace, fully burning occurs；
Carbon raw material and calcium raw material grinding mill are entered in stove from high temperature reaction stove sidepiece by noble gas after making powder body
Carry out pyroreaction；The carbide product that reaction generates at high temperature forms liquid melt state, melted
Carbide forms carbide product after waste-heat recovery device cools down.
Described coal dust is milled to 20～200 microns beforehand through ultra-fine coal pulverizer, and the coal dust of milled passes through
Pulverized coal conveying device delivers to high temperature reaction stove entrance, enters from high temperature reaction stove top through turbulent burner
Entering, the high temperature oxygen-containing gas needed for burning revolves along high temperature with high speed (more than 30 meter per seconds)
Stream reacting furnace tangential direction sprays into, and coal dust fully burns in high temperature cyclone reaction stove, average in stove
Ignition temperature is more than 1700 DEG C.Described carbon raw material and calcium raw material are milled into by flour mill
The powder body of 20～200um particle size range, uses inert gas carrier to deliver to height by device for transporting objects
Temperature reacting furnace.
Preferably, described method also includes: the side-product produced in described high temperature reaction stove is under stove
Side position enters mixed gas passage, adds carbon and the CO in side-product in this mixed gas passage2Instead
CO should be generated, be then passed through heat exchanger and decontaminating separator, it is thus achieved that CO product.
The side-product flue gas produced in high temperature reaction stove includes CO2, by mixed gas passage
Add carbon so that it is with CO2Reaction generates CO, then sequentially passes through heat exchanger with remaining CO
And decontaminating separator, it is thus achieved that CO product, described heat exchanger is for carrying out reacted flue gas
Cooling, then carries out dedusting in decontaminating separator, separates and obtains clean CO gas, separates
Dust can be delivered to high temperature reaction stove and be circulated utilization.
Preferably, the waste heat two that described melted carbide produces during waste-heat recovery device cools down
Secondary wind enters in described high temperature reaction stove and recycles as high temperature oxygen-containing gas.
Preferably, the CO of described mixed gas passage produces during heat exchanger carries out heat exchange
Raw high temperature secondary wind enters in described high temperature reaction stove and recycles as high temperature oxygen-containing gas.
Preferably, after the purified separator of CO of described mixed gas passage, separate the dust of acquisition,
It is delivered to high temperature reaction stove by fly ash remelting device recycle.
Preferably, the particle size range of described coal dust is 20～200um, described carbon raw material and calcium raw material grinding mill
The diameter of particle scope made is 20～200um.
Preferably, described high temperature oxygen-containing gas on the upside of described high temperature reaction stove in tangential direction with greatly
Speed in 30 meter per seconds enters in reacting furnace.
The present invention also provides for a kind of oxygen full-boiled process and produces carbide and the system of CO gas, and this system includes:
Pulverized coal conveying device, device for transporting objects, air transporting arrangement, blower fan, turbulent burner, height
Temperature reacting furnace, waste-heat recovery device, screen tube, inert gas generator；
Described pulverized coal conveying device is connected with turbulent burner, for coal dust is delivered to swirl flow combustion
Device；
Described turbulent burner is arranged on the top of high temperature reaction stove and is connected with high temperature reaction stove, is used for
Receive the coal dust of described pulverized coal conveying device conveying, and make coal dust burn, then by burning
Coal dust exports to high temperature reaction stove；
Described device for transporting objects is connected with high temperature reaction stove sidepiece, for by carbon raw material and calcium raw material
Powder body is delivered to high temperature reaction stove together with noble gas and carries out pyroreaction；
Described air transporting arrangement is for again carrying the high temperature oxygen-containing gas that high temperature reaction stove exports
Utilization it is circulated to stove, and for noble gas being delivered to device for transporting objects and reception
The air that blower fan fills into；
Described blower fan is for filling into air to described air transporting arrangement；
Described high temperature reaction stove burns generation for the coal dust receiving pulverized coal conveying device conveying in stove
High temperature, and receive the carbon raw material of device for transporting objects conveying and calcium material powder is anti-under furnace high-temperature
Carbide product, and the oxygen required for the acquisition reaction that is connected with air transporting arrangement should be produced；
Described waste-heat recovery device is connected with described pyroreaction furnace bottom, is used for receiving pyroreaction
The carbide product, the process that generate in stove are cooled into carbide product, and waste heat gas therein passes through institute
State air transporting arrangement to be delivered to high temperature reaction stove and be circulated utilization；
Described screen tube is connected on the downside of described high temperature reaction stove, is used for receiving high temperature reaction stove and produces
Residue；
Described inert gas generator is connected with air transporting arrangement, is used for producing noble gas, produces
Noble gas be delivered to device for transporting objects by air transporting arrangement.
Described oxygen full-boiled process produces the system of carbide and CO gas and also includes: mixed gas passage, carbon are defeated
Send device, heat exchanger, decontaminating separator, fly ash remelting device；
Described mixed gas passage is connected with described screen tube, for receiving the mixed of high temperature reaction stove generation
Close flue gas；
Described carbon conveyer device is connected with described mixed gas passage, for carrying in mixed gas passage
Carbon raw material, this carbon raw material in mixed gas passage with the CO in described mixed flue gas2Reaction generates
CO；
Described heat exchanger is connected with the other end of mixed gas passage, for reacted mixing cigarette
Gas is cooled down by heat exchange；
Described decontaminating separator is connected with described heat exchanger, for entering the flue gas after described cooling
Row purification separation, it is thus achieved that CO product；
Described fly ash remelting device is connected with described decontaminating separator and described device for transporting objects respectively, institute
State the dust that decontaminating separator separates and return to described material conveying dress by described fly ash remelting device
Put and be delivered to high temperature reaction stove and be circulated utilization.
Preferably, described high temperature reaction stove is the cylindrical reaction chamber that water screen tube is formed.
Described high temperature reaction stove is the high temperature combustors formed by water screen tube, and pipe side towards the fire covers
Refractory material, insulation material, it is thus possible in stove, burn into higher calorific intensity, make reactant
Become molten condition, flow to high temperature reaction stove bottom and carry out reacting the purpose reaching to generate carbide, generate
Melted carbide through waste-heat recovery device cool down after formed carbide product.
For ensureing pyroreaction furnace temperature, each section of burner hearth of reaction all has oxygen concurrent heating, or also can root
According to needs, electricity concurrent heating is set.
Compared with prior art, beneficial effects of the present invention is as follows:
1, the present invention provides a kind of and utilizes ultrafine solids fuel combustion to prepare the new of carbide and CO gas
Process, coal dust fully burns in high temperature reaction stove through turbulent burner, is formed in stove
The high temperature of 1700 DEG C-2200 DEG C.After reaction raw materials mix homogeneously, tangential feeding high temperature reaction stove enters
Row highly effective reaction, forms higher calorific intensity, makes carbide product become liquid melt state to discharge in stove.
2, the CO in the side-product flue gas of carbide reaction is generated2In mixed gas passage, add carbon be reduced
The carbide side-product CO produced in becoming CO, with high temperature reaction stove is integrated into CO flue gas, reaches electricity
Stone and combustion gas CO coproduction purpose.
3, the process overall process of the present invention makes full use of waste heat, and produce in high temperature reaction stove is remaining
Hot gas is circulated utilization in being back to high temperature reaction stove, to reach Resource recovery, to save fuel
Purpose.It is anti-that the dust obtained after purified separator dedusting delivers to high temperature by flying dust remelt device
Answer stove to be circulated utilization, prevent the combustible in flying dust from passing.
Accompanying drawing explanation
Fig. 1 is that in the present invention, oxygen full-boiled process produces carbide and the system schematic of CO gas.
Detailed description of the invention
Below in conjunction with embodiment, technical scheme is described in detail.
Seeing Fig. 1, this figure is that oxygen full-boiled process produces carbide and the system schematic of CO gas.As it can be seen,
This system includes: flour mill 1, blower fan 2, device for transporting objects 3, coal pulverizer 4, pulverized coal conveying device 5,
Turbulent burner 6, high temperature reaction stove 7, screen tube 8, mixed gas passage 9, heat exchanger 10, purify
Separator 11, waste-heat recovery device 12, inert gas generator 13, air A, coal raw material C, remaining
Hot secondary wind D, high temperature secondary wind H, clean CO product G, noble gas F, melted carbide L, fly
Ash remelting apparatus S, carbide product P, pure carbon T.
System shown in Fig. 1 produces the concrete technology flow process of carbide and CO gas: coal raw material C enters
Coal pulverizer 4 is milled to the coal dust of 20～200 μm particle size range, and the coal dust of milled passes through pulverized coal conveying device
5 entrances being delivered to high temperature reaction stove 7, and after through turbulent burner 6 from high temperature reaction stove 7 top enter,
High temperature secondary wind H (i.e. high temperature oxygen-containing gas) needed for burning is with high speed (more than 30 meter per seconds)
Spraying into along high temperature reaction stove 7 tangential direction, coal dust C fully burns in high temperature reaction stove 7, stove internal combustion
Burning temperature is 1700 DEG C 2200 DEG C.Raw material carbon dust, calcium containing compound by flour mill 1 grind particle diameter 20～
The powder body of 200 μm, then tangentially sends into high temperature reaction stove 7 by noble gas F and carries out carbide from furnace side
Pyroreaction, wherein noble gas F derives from inert gas generator 13.High temperature reaction stove 7 be by
Water screen tube forms reative cell, and pipe side towards the fire covers fireproof coating；Thus can shape in high temperature reaction stove 7
Becoming higher calorific intensity, make carbide product become liquid melt state, the melted carbide L of generation returns through waste heat
Form carbide product P after receiving apparatus 12 cooling, be delivered to waste heat recovery dress from the air A of blower fan 2 outlet
Put 12, then deliver to high temperature reaction stove 7 as waste heat secondary wind D (oxygen-containing gas).
The mixed flue gas such as the carbide side-product CO produced in high temperature cyclone reaction stove 7 sequentially pass through screen tube
8, mixed gas passage 9, heat exchanger 10, decontaminating separator 11；Pure carbon is added in mixed gas passage 9
The CO contained in T, pure carbon T and mixed flue gas2Reaction generates CO, reacted flue gas CO and enters heat
Exchanger 10, carries out heat exchange with the air A inputted by blower fan 2, and the flue gas CO after cooling enters
Decontaminating separator 11 forms clean CO product G.
Air A temperature after over-heat-exchanger 10 of pressure fan 2 conveying rises to 400 DEG C-800 DEG C, one
Being allocated as the desiccant for coal pulverizer and send into coal pulverizer 4 powder process, another part can be cut as high temperature secondary wind H
To causing high temperature reaction stove 7, to ensure coal fines high-temperature efficient burning.Purified separator 11 is separated
Dust return to device for transporting objects 3 by fly ash remelting device S and recycle.
Above are only the part preferred embodiment of the present invention, the present invention is not limited in the interior of embodiment
Hold.To those skilled in the art, can in the concept of technical solution of the present invention
To have various change and change, any change made and change, all scope it
In.
Claims (10)
1. oxygen full-boiled process produces carbide and a method for CO gas, and the method is: coal dust is through turbulent burner
Enter high temperature reaction stove top, with the high temperature oxygen-containing gas entering reacting furnace, fully burning occurs；Carbon raw material
In high temperature reaction stove sidepiece entrance stove, high temperature is carried out by noble gas anti-after making powder body with calcium raw material grinding mill
Should；The carbide product that reaction generates at high temperature forms liquid melt state, and melted carbide is through waste heat recovery
Carbide product is formed after device cooling.
2. oxygen full-boiled process as claimed in claim 1 produces carbide and the method for CO gas, it is characterised in that
Described method also includes: the side-product produced in described high temperature reaction stove enters gaseous mixture through stove lower position
Passage, adds carbon and the CO in side-product in this mixed gas passage2Reaction generates CO, is then passed through heat
Exchanger and decontaminating separator, it is thus achieved that CO product.
3. oxygen full-boiled process as claimed in claim 1 or 2 produces carbide and the method for CO gas, and its feature exists
In: the waste heat secondary wind that described melted carbide produces during waste-heat recovery device cools down enters described
High temperature reaction stove recycles as high temperature oxygen-containing gas.
4. oxygen full-boiled process as claimed in claim 2 produces carbide and the method for CO gas, it is characterised in that:
The high temperature secondary wind that the CO of described mixed gas passage produces during heat exchanger carries out heat exchange enters
Described high temperature reaction stove recycles as high temperature oxygen-containing gas.
5. oxygen full-boiled process as claimed in claim 2 produces carbide and the method for CO gas, it is characterised in that:
The dust of acquisition is separated after the purified separator of CO of described mixed gas passage, defeated by fly ash remelting device
Deliver to high temperature reaction stove recycle.
6. oxygen full-boiled process as claimed in claim 1 or 2 produces carbide and the method for CO gas, and its feature exists
In: the particle size range of described coal dust is 20～200um, the powder body grain that described carbon raw material and calcium raw material grinding mill are made
Footpath scope is 20～200um.
7. oxygen full-boiled process as claimed in claim 1 or 2 produces carbide and the method for CO gas, and its feature exists
In: described high temperature oxygen-containing gas on the upside of described high temperature reaction stove in tangential direction with the speed more than 30 meter per seconds
Degree enters in reacting furnace.
8. an oxygen full-boiled process produces carbide and the system of CO gas, it is characterised in that this system includes: coal
Powder conveyer device, device for transporting objects, air transporting arrangement, blower fan, turbulent burner, pyroreaction
Stove, waste-heat recovery device, screen tube, inert gas generator；
Described pulverized coal conveying device is connected with turbulent burner, for coal dust is delivered to turbulent burner；
Described turbulent burner is arranged on the top of high temperature reaction stove and is connected with high temperature reaction stove, is used for receiving
The coal dust of described pulverized coal conveying device conveying, and make coal dust burn, then by the coal dust output of burning
To high temperature reaction stove；
Described device for transporting objects is connected with high temperature reaction stove sidepiece, for by carbon raw material and calcium material powder
It is delivered to high temperature reaction stove together with noble gas and carries out pyroreaction；
Described air transporting arrangement is for being again delivered to stove by the high temperature oxygen-containing gas that high temperature reaction stove exports
Inside it is circulated utilization, and fills into for noble gas being delivered to device for transporting objects and reception blower fan
Air；
Described blower fan is for filling into air to described air transporting arrangement；
Described high temperature reaction stove burns in stove for the coal dust receiving pulverized coal conveying device conveying and produces height
Temperature, and receive device for transporting objects conveying carbon raw material and calcium material powder under furnace high-temperature, react production
Carbide product, and the oxygen required for the acquisition reaction that is connected with air transporting arrangement；
Described waste-heat recovery device is connected with described pyroreaction furnace bottom, is used for receiving in high temperature reaction stove
The carbide product, the process that generate are cooled into carbide product, and waste heat gas therein is defeated by described gas
Send device to be delivered to high temperature reaction stove and be circulated utilization；
Described screen tube is connected on the downside of described high temperature reaction stove, for receiving the residual of high temperature reaction stove generation
Slag；
Described inert gas generator is connected with air transporting arrangement, is used for producing noble gas, produces
Noble gas be delivered to device for transporting objects by air transporting arrangement.
A kind of oxygen full-boiled process the most as claimed in claim 8 produces carbide and the system of CO gas, and its feature exists
In, this system also includes: mixed gas passage, carbon conveyer device, heat exchanger, decontaminating separator, flies
Ash remelting apparatus；
Described mixed gas passage is connected with described screen tube, for receiving the mixing cigarette that high temperature reaction stove produces
Gas；
Described carbon conveyer device is connected with described mixed gas passage, former for carrying carbon in mixed gas passage
Material, this carbon raw material in mixed gas passage with the CO in described mixed flue gas2Reaction generates CO；
Described heat exchanger is connected with the other end of mixed gas passage, for leading to reacted mixed flue gas
Cross heat exchange to cool down；
Described decontaminating separator is connected with described heat exchanger, for carrying out the flue gas after described cooling only
Change and separate, it is thus achieved that CO product；
Described fly ash remelting device is connected with described decontaminating separator and described device for transporting objects respectively, institute
State the dust that decontaminating separator separates and return to described material conveying dress by described fly ash remelting device
Put and be delivered to high temperature reaction stove and be circulated utilization.
A kind of oxygen full-boiled process the most as claimed in claim 8 or 9 produces carbide and the system of CO gas, its
It is characterised by: described high temperature reaction stove is the cylindrical reaction chamber that water screen tube is formed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510280466.6A CN106276901B (en) | 2015-05-28 | 2015-05-28 | Method and system for producing calcium carbide and CO gas by using oxygen thermal method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510280466.6A CN106276901B (en) | 2015-05-28 | 2015-05-28 | Method and system for producing calcium carbide and CO gas by using oxygen thermal method |
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| CN106276901B CN106276901B (en) | 2020-07-24 |
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| CN201510280466.6A Expired - Fee Related CN106276901B (en) | 2015-05-28 | 2015-05-28 | Method and system for producing calcium carbide and CO gas by using oxygen thermal method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107117618A (en) * | 2017-06-16 | 2017-09-01 | 中国石油大学(华东) | A kind of hot method of calcium focal sphere group classification oxygen produces the device of calcium carbide |
| CN107937029A (en) * | 2017-12-22 | 2018-04-20 | 中国科学院上海高等研究院 | A kind of method and system of coal base calcium carbide acetylene |
| CN108439407A (en) * | 2018-06-07 | 2018-08-24 | 中国科学院上海高等研究院 | A kind of device of the hot method production calcium carbide of oxygen |
| WO2021098980A1 (en) * | 2019-11-18 | 2021-05-27 | Linde Gmbh | Method and device for the production of carbon monoxide by reverse water-gas shift |
| CN113968581A (en) * | 2020-07-24 | 2022-01-25 | 中国科学院上海高等研究院 | Device and method for preparing calcium carbide and co-producing carbon monoxide by using oxygen thermal method |
| CN115259158A (en) * | 2022-07-29 | 2022-11-01 | 北京科技大学 | System and method for preparing high-reduction-potential gas by calcium carbide liquid forming coupling |
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| CN101327928A (en) * | 2008-08-01 | 2008-12-24 | 北京化工大学 | Calcium carbide production method |
| CN101428799A (en) * | 2008-12-12 | 2009-05-13 | 北京化工大学 | System for producing calcium carbide |
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| EP0020957A1 (en) * | 1979-06-27 | 1981-01-07 | Hoechst Aktiengesellschaft | Process for manufacturing calcium carbide |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107117618A (en) * | 2017-06-16 | 2017-09-01 | 中国石油大学(华东) | A kind of hot method of calcium focal sphere group classification oxygen produces the device of calcium carbide |
| CN107117618B (en) * | 2017-06-16 | 2023-11-24 | 中国石油大学(华东) | Device for producing calcium carbide by calcium coke pellet hierarchical oxygen thermal method |
| CN107937029A (en) * | 2017-12-22 | 2018-04-20 | 中国科学院上海高等研究院 | A kind of method and system of coal base calcium carbide acetylene |
| CN108439407A (en) * | 2018-06-07 | 2018-08-24 | 中国科学院上海高等研究院 | A kind of device of the hot method production calcium carbide of oxygen |
| WO2021098980A1 (en) * | 2019-11-18 | 2021-05-27 | Linde Gmbh | Method and device for the production of carbon monoxide by reverse water-gas shift |
| CN113968581A (en) * | 2020-07-24 | 2022-01-25 | 中国科学院上海高等研究院 | Device and method for preparing calcium carbide and co-producing carbon monoxide by using oxygen thermal method |
| CN115259158A (en) * | 2022-07-29 | 2022-11-01 | 北京科技大学 | System and method for preparing high-reduction-potential gas by calcium carbide liquid forming coupling |
| CN115259158B (en) * | 2022-07-29 | 2023-10-03 | 北京科技大学 | System and method for preparing high-reduction potential gas by calcium carbide liquid forming coupling |
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