CN109351150A - The device and method of cascaded utilization of energy during a kind of carbon heat reducing - Google Patents
The device and method of cascaded utilization of energy during a kind of carbon heat reducing Download PDFInfo
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- CN109351150A CN109351150A CN201811353713.0A CN201811353713A CN109351150A CN 109351150 A CN109351150 A CN 109351150A CN 201811353713 A CN201811353713 A CN 201811353713A CN 109351150 A CN109351150 A CN 109351150A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/76—Gas phase processes, e.g. by using aerosols
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/02—Preparation of sulfur; Purification
- C01B17/04—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides
- C01B17/0473—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by reaction of sulfur dioxide or sulfur trioxide containing gases with reducing agents other than hydrogen sulfide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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Abstract
Present disclose provides cascaded utilization of energy device and methods during a kind of carbon heat reducing, including high-temperature flue gas pretreatment system, carbon heat reducing system, sulfur recovery system and lack of gas processing system, the gaseous mixture of the pretreated flue gas of heat and circulation lack of gas released when the high-temperature flue gas pretreatment system is for by cooling high-temperature fume, improve the temperature of charge for entering carbon heat reducing system, the carbon heat reducing system is used to carry out carbon heat reducing reaction using the gaseous mixture after carbon material and heating, and gas-solid pre-separation is carried out to also Primordial Qi, the sulfur recovery system is used to cool down to the also Primordial Qi after pre-separation, essence filtering and condensation process, to recycle the sulphur in also Primordial Qi, the lack of gas processing system is used for recycle the progress water vapor filtering processing of the lack of gas after sulphur, lack of gas a part that treated purification discharge, A part uses after using the heat released when also Primordial Qi cooling to be heated as circulation lack of gas.
Description
Technical field
The disclosure belongs to energy saving of system optimization field, and in particular to the dress of cascaded utilization of energy during a kind of carbon heat reducing
It sets and method.
Background technique
Increasingly serious with Environmental Protection in China situation, the sulfur-containing smoke gas of the discharges such as power plant, metallurgical works, chemical plant becomes
The emphasis of current smoke gas treatment work.Currently, sulfur-containing smoke gas removing sulfuldioxide mainly has Limestone-gypsum Wet Flue Gas Desulfurization Process, half-dried
Method desulfurization and active coke dry-method desulfuration technology, since active coke dry-method desulfuration technology has, desulfuration efficiency is high, by-product is few, no
Consumption water resource can remove the advantages that multiple pollutant, recoverable Sulphur ressource simultaneously, be increasingly becoming main flume desulfurization
Technology.
But China's active coke dry-method desulfuration and application technology as the second resource are mainly the SO utilized in flue gas at present2Preparation
Sulfuric acid, due to sulfuric acid storage, transport difficult, value, utilization rate are lower, or even in certain areas for not needing sulfuric acid, flue gas
The sulfuric acid of desulfurization preparation is difficult to handle, and forms secondary pollution.Meanwhile China is the country of sulphur shortage of resources again, sulphur produces
Amount is far below consumption, depends on import unduly, if it is possible to by the SO in flue gas2Directly prepare sulphur, value of the product and money
Source utilization rate will be improved greatly, therefore, carbon heat reducing SO2Sulphur technology is prepared gradually to be subject to the people's attention.
The presence of vapor is had in most sulfur-containing smoke gas, the presence of vapor will lead to carbon heat reducing SO2It produces in the process
Raw H2S by-product, therefore, we must carry out the vapor in pretreatment removing flue gas to sulfur-containing smoke gas.Currently, comparative maturity
Vapor removing sulfuldioxide be extremely cold falling temperature technique, although the vapor in flue gas can remove by the technology, need will be high
Warm flue gas drops to very low temperature, meanwhile, carbon heat reducing SO2Technology needs to carry out at high temperature again, the cigarette after water vapor removing
Gas needs to heat again, thus causes a large amount of wastes of energy.In addition, carbon heat reducing SO2Sulfur system is prepared, is needed pair
Reducing gas after reduction, which is cooled down, carrys out Recovered sulphur, and the steam exhaust for having recycled sulphur contains COS and H2A small amount of by-product such as S,
By this part, steam exhaust is back to carbon heat reducing tower to inhibit the formation of by-product again, and the mistake to heat up afterwards that gas is first cooled down
Journey equally causes the waste of energy, so that operating cost greatly improves, economy is poor.
If a kind of device and method of cascaded utilization of energy during carbon heat reducing can be invented, by energy cascade in the process
Using recycling, technique is not only optimized, reduces the formation of harmful side product in carbon heat reducing reaction, while improving system
Economy saves operating cost, is carbon heat reducing SO2The industrial application of technology is laid a good foundation.
Summary of the invention
In order to solve the deficiencies in the prior art, in carbon heat reducing SO2On the basis of mechanism experiment data, present disclose provides
A kind of carbon heat reducing SO2The device and method for preparing cascaded utilization of energy during sulphur, using equipment such as heat exchangers, minimum
In the case where external substance input and energy input, SO is realized2Conversion to sulphur.
As one or more embodiments, the technical solution of the disclosure is as follows:
Cascaded utilization of energy device during a kind of carbon heat reducing, including high-temperature flue gas pretreatment system, carbon heat reducing system
System, sulfur recovery system and lack of gas processing system,
The high-temperature flue gas pretreatment system is configured as by being cooled down to high-temperature flue gas, dedusting and vapor
Removing handles to obtain low-temperature flue gas, and the heat released when use cooling high-temperature fume mixes low-temperature flue gas with circulation lack of gas
Gas is heated, and the gas after heating is sent into carbon heat reducing system；
The carbon heat reducing system is configured as being reacted using carbon material with the gas generation carbon heat reducing after heating, be obtained
Gas-solid pre-separation is carried out to also Primordial Qi, and to also Primordial Qi, the also Primordial Qi after obtaining preliminary purification；
The sulfur recovery system is configured as cooling down to the also Primordial Qi after preliminary purification, at essence filtering and condensation
After reason, sulphur of the recycling also in Primordial Qi, and lack of gas processing system is delivered to by the lack of gas after sulphur have been recycled；
The lack of gas processing system is configured as carrying out lack of gas water vapor filtering processing, and will treated lack of gas portion
Divide qualified discharge after purifying, is partially heated as circulation lack of gas using the heat released when Primordial Qi cools down is gone back, after heating
Circulation lack of gas be directly entered all the way carbon heat reducing system carry out temperature adjustment, all the way with after low-temperature flue gas Hybrid Heating be sent into charcoal heat also
Original system participates in redox reaction.
Further, the high-temperature flue gas pretreatment system includes heat exchanger, deduster and cold dry heat exchanger, the heat exchange
Device is used to remove the solid impurity in the flue gas after cooling for the exchange of the heat of high-temperature flue gas and gaseous mixture, the deduster,
The cold dry heat exchanger is used to carry out rapid cooling to the pure flue gas for filtering out solid impurity to remove the vapor in flue gas.
Further, the carbon heat reducing system includes that reduction tower, coke breeze storehouse and high-temperature separator, the coke breeze storehouse are used for
Carbon material needed for providing carbon heat reducing reaction, it is anti-that the gas that the reduction tower is used for after carbon material and heating carries out carbon heat reducing
It answers, the high-temperature separator is used to carry out gas-solid pre-separation to also Primordial Qi, and after solid after being separated and preliminary purification
Also Primordial Qi.
Further, solid a part after the separation returns is recycled in reduction tower, and another part loses reduction
The weary burnt then discharge system of characteristic.
Further, the sulfur recovery system includes reheater, refined dedusting device and sulfur condenser, the reheater
For after preliminary purification also Primordial Qi with recycle lack of gas heat exchange, the refined dedusting device for after cooling and also Primordial Qi into
Row gas solid separation, with the solid particle in further removal also Primordial Qi, the sulfur condenser is used for filtered also Primordial Qi
Cooling processing is carried out, to recycle the sulphur in also Primordial Qi.
Further, the lack of gas processing system includes vapor filter and exhaust gas cleaner, the vapor mistake
Filter is used for for filtering out the vapor caused by carbon heat reducing reacts, the tail gas evolution device in lack of gas to part
Lack of gas carry out purified treatment, so that lack of gas qualified discharge.
A kind of cascaded utilization of energy method during carbon heat reducing, comprising:
Cooled down to high-temperature flue gas, dedusting and vapor removing processing, obtain low-temperature flue gas, by low-temperature flue gas and circulation
The heat released when using cooling high-temperature fume after lack of gas mixing is heated, and is used for charcoal using gas after heating as reactant
Thermal reduction reaction；
Also Primordial Qi, drops in the also Primordial Qi after carbon heat reducing reaction product progress gas solid separation to be obtained to preliminary purification
After temperature, essence filtering and condensation process, sulphur of the recycling also in Primordial Qi, and water vapor filtering is carried out by the lack of gas after sulphur have been recycled
Processing, qualified discharge after lack of gas that treated are Partial cleansing are partially circulation lack of gas；
The heat released when using also Primordial Qi cooling heats circulation lack of gas, and the circulation lack of gas after heating are used all the way
Temperature adjustment in carbon heat reducing reaction process is reacted with after low-temperature flue gas Hybrid Heating for participating in carbon heat reducing all the way.
Further, the method also includes carbon heat reducing reaction product progress gas solid separation is obtained solid product, institute
The recycling of solid product part is stated, another part loses the weary burnt discharge of reduction characteristic.
Further, the heat released when the cooling high-temperature fume is equal to the heat absorbed when gaseous mixture heats up.
Further, the heat released when the also Primordial Qi cooling is equal to the heat absorbed when circulation lack of gas heating.
Compared with prior art, the beneficial effect of the disclosure is:
1) the present disclosure proposes a kind of carbon heat reducing SO2The device and method of cascaded utilization of energy during sulphur is prepared,
High concentration SO for metal smelt flue gas, chemical industry tail gas, sintering device flue gas etc. containing vapor2Gas or through SO2After enrichment
The high concentration SO containing vapor2Power plant soot fume, make it through heat exchange, accurate control reaction condition and reasonable knot
Structure design can not only inhibit the generation of by-product in carbon heat reducing reaction, improve sulphur yield, while all having recycled and being
Energy in system realizes the cascade utilization of energy, reduces system operation cost, increases economic efficiency, and has wide city
Field prospect.
2) the carbon based reductive circulating ratio in the fluidized bed carbon heat reducing tower of the disclosure is high, SO2Conversion ratio be 90~
98%, sulphur yield is 85~95%, and Recovered sulphur purity reaches 99.7% or more, meets industrial sulphur Grade A standard.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation are not constituted an undue limitation on the present application for explaining the application.
Fig. 1 is disclosure carbon heat reducing SO2Prepare the apparatus structure schematic diagram of cascaded utilization of energy during sulphur；
In figure: 1, heat exchanger, 2, deduster, 3, cold dry heat exchanger, 4, coke breeze storehouse, 5, reduction tower, 6, high-temperature separator, 7,
Reheater, 8, refined dedusting device, 9, sulfur condenser, 10, sulphur storage tank, 11, water vapor condenser, 12, exhaust gas cleaner,
13, chimney.
Specific embodiment
The disclosure is described further with specific embodiment with reference to the accompanying drawing.
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
In the disclosure, term for example "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", " side ",
The orientation or positional relationship of the instructions such as "bottom" is to be based on the orientation or positional relationship shown in the drawings, only to facilitate describing this public affairs
The relative for opening each component or component structure relationship and determination, not refers in particular to either component or element in the disclosure, cannot understand
For the limitation to the disclosure.
In the disclosure, term such as " affixed ", " connected ", " connection " be shall be understood in a broad sense, and indicate may be a fixed connection,
It is also possible to be integrally connected or is detachably connected；It can be directly connected, it can also be indirectly connected through an intermediary.For
The related scientific research of this field or technical staff can determine the concrete meaning of above-mentioned term in the disclosure as the case may be,
It should not be understood as the limitation to the disclosure.
As one or more embodiments, as shown in Figure 1, cascaded utilization of energy device during a kind of carbon heat reducing,
Including heat exchanger 1, deduster 2, cold dry heat exchanger 3, coke breeze storehouse 4, reduction tower 5, high-temperature separator 6, reheater 7, refined dedusting dress
Set 8, sulfur condenser 9, sulphur storage tank 10, water vapor condenser 11, exhaust gas cleaner 12 and chimney 13；
In above-mentioned apparatus, the high-temperature flue gas containing vapor, according to the difference in its source, temperature is at 400 DEG C to 1300
DEG C indefinite, high-temperature flue gas initially enters heat exchanger 1, and temperature is cooled to 110 DEG C -120 DEG C, after cooling by 400 DEG C -1300 DEG C
Flue gas enters the solid impurity in the removal flue gas of deduster 2, and the pure flue gas for filtering out solid impurity enters cold dry heat exchanger 3,
The vapor in flue gas is removed by rapid cooling technology, cold dry heat exchanger 3 exports smoke temperature and is further reduced to 10 DEG C -30 DEG C,
Low-temperature flue gas mixed with the circulation lack of gas that lack of gas processing system comes after enter 1 heat temperature raising of heat exchanger, heating caloric receptivity with
Cooling high-temperature fume thermal discharge is identical, the cooling thermal discharge of high-temperature flue gas is all recycled, the gas after heating is according to circulation lack of gas
The difference of amount is indefinite between 350 DEG C -900 DEG C；
Low-temperature flue gas enters reduction tower 5 after mixing heating with circulation lack of gas, be stored in the carbon material in coke breeze storehouse 4 through being fed
Machine accurately controls feeding coal and is delivered to reduction tower 5, and carbon heat reducing reaction generation also Primordial Qi occurs for gas-solid mixing in reduction tower 5；
Also Primordial Qi initially enters high-temperature separator 6 and carries out gas-solid pre-separation, and solid a part after separation, which returns to the reduction circulation of tower 5, to be made
With another part loses the weary burnt discharge system of reduction characteristic；
The gas that high-temperature separator 6 is isolated enters reheater 7, and temperature is cooled to 300 DEG C -450 by 750 DEG C -900 DEG C
℃；Also Primordial Qi after cooling enters refined dedusting device 8 and filters out the tiny solid gone back in Primordial Qi, to improve sulfur purity；Smart mistake
The also Primordial Qi of filter enters 9 Recovered sulphur of sulfur condenser, and the sulphur condensed out is stored in sulphur storage tank 10；Sulphur is recycled
Steam exhaust after water vapor condenser 11 filters out the vapor generated in reduction reaction, a part be sent into exhaust gas cleaner 12
It purifies the rear chimney 13 that passes through up to standard to discharge, another part is sent into reheater 7 and is heated, and heating recepts the caloric and reduction air cooling heat release
Identical, reduction air cooling thermal discharge all recycling are measured, the circulation lack of gas after heating directly return to reduction tower 5 all the way and carry out temperature adjustment,
Another way is reacted with the reduction participation of tower 5 is sent into after low-temperature flue gas Hybrid Heating.
Wherein, the high-temperature flue gas is the high concentration SO containing vapor2Gas, can for metal smelt flue gas, change
Work tail gas, sintering device flue gas and through SO2The high concentration SO that enrichment means are formed2Flue gas, wherein SO2Concentration is 3%~30%；
The carbon material is the carbon material with reduction characteristic such as active carbon, activated coke, active carbocoal；
The circulation steam exhaust is N2、SO2、COS、H2S、CS2、CO、H2And CO2Deng mixture；
The heat exchanger 1 includes but is not limited to shell-and-tube heat exchanger, tube-sheet heat exchanger or plate heat exchanger；
The high-temperature separator 6 includes but is not limited to cyclone separator or turbo separator；
The refined dedusting device 8 includes but is not limited to ceramic filter or metal screen filter；
Bed in the reduction tower 5 can be a variety of fluidisation shapes such as Micro Fluid bed, bubbling bed, spouted bed and fluidized bed
State；
4~8m/s of gas velocity in the reduction tower 5,2~12s of gas-solid contact time in tower, reaction temperature 700 DEG C~1000
DEG C, C/S molar ratio 10~120；
The also Primordial Qi is N2、SO2、COS、H2S、CS2、CO、S、H2And CO2Deng mixture.
The disclosure can not only inhibit carbon heat reducing by heat exchange, accurate control reaction condition and the design of reasonable structure
The generation of by-product in reaction improves sulphur yield, while all having recycled the energy in system, realizes the step of energy
It utilizes, reduces system operation cost, improve economic benefit；
Carbon based reductive circulating ratio in disclosure fluidized bed carbon heat reducing tower is high, and SO2 conversion ratio is 90~98%, sulphur
Sulphur yield is 85~95%, and Recovered sulphur purity reaches 99.7% or more, meets industrial sulphur Grade A standard.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Although above-mentioned be described in conjunction with specific embodiment of the attached drawing to the disclosure, model not is protected to the disclosure
The limitation enclosed, those skilled in the art should understand that, on the basis of the technical solution of the disclosure, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within the protection scope of the disclosure.
Claims (10)
1. cascaded utilization of energy device during a kind of carbon heat reducing, it is characterised in that: including high-temperature flue gas pretreatment system, charcoal
Thermal reduction system, sulfur recovery system and lack of gas processing system,
The high-temperature flue gas pretreatment system is configured as by being cooled down to high-temperature flue gas, the removing of dedusting and vapor
Processing obtains low-temperature flue gas, and using cooling high-temperature fume when the heat released to low-temperature flue gas and circulation lack of gas gaseous mixture into
Gas after heating is sent into carbon heat reducing system by row heating；
The carbon heat reducing system is configured as being reacted using carbon material with the gas generation carbon heat reducing after heating, be gone back
Primordial Qi, and gas-solid pre-separation is carried out to also Primordial Qi, the also Primordial Qi after obtaining preliminary purification；
The sulfur recovery system is configured as cooling down to the also Primordial Qi after preliminary purification, after essence filtering and condensation process,
Sulphur of the recycling also in Primordial Qi, and lack of gas processing system is delivered to by the lack of gas after sulphur have been recycled；
The lack of gas processing system is configured as carrying out lack of gas water vapor filtering processing, and lack of gas part is net by treated
Qualified discharge after change, the heat released when partially as circulation lack of gas using also Primordial Qi cooling are heated, following after heating
Ring lack of gas be directly entered all the way carbon heat reducing system carry out temperature adjustment, all the way with after low-temperature flue gas Hybrid Heating be sent into carbon heat reducing system
System participates in redox reaction.
2. cascaded utilization of energy device during a kind of carbon heat reducing as described in claim 1, which is characterized in that the high temperature
Flue gas pretreatment system includes heat exchanger, deduster and cold dry heat exchanger, and the heat exchanger is for high-temperature flue gas and gaseous mixture
Heat exchange, the deduster are used to remove the solid impurity in the flue gas after cooling, and the cold dry heat exchanger is used for filtering
The pure flue gas for falling solid impurity carries out rapid cooling to remove the vapor in flue gas.
3. cascaded utilization of energy device during a kind of carbon heat reducing as described in claim 1, which is characterized in that the charcoal heat
Also original system includes reduction tower, coke breeze storehouse and high-temperature separator, carbon needed for the coke breeze storehouse is used to provide carbon heat reducing reaction
Material, it is described reduction tower for carbon material and heating after gas carry out carbon heat reducing reaction, the high-temperature separator for pair
Also Primordial Qi carries out gas-solid pre-separation, and solid after separate and after preliminary purification and Primordial Qi.
4. cascaded utilization of energy device during a kind of carbon heat reducing as claimed in claim 3, which is characterized in that the separation
Solid a part afterwards returns to be recycled in reduction tower, and another part loses the weary burnt then discharge system of reduction characteristic.
5. cascaded utilization of energy device during a kind of carbon heat reducing as described in claim 1, which is characterized in that the sulphur
Recovery system includes reheater, refined dedusting device and sulfur condenser, and the reheater is gone back Primordial Qi and followed after being used for preliminary purification
The heat of ring lack of gas exchanges, and the refined dedusting device is used to carry out gas solid separation to the also Primordial Qi after cooling, further to remove
Solid particle also in Primordial Qi, the sulfur condenser is used to carry out cooling processing to filtered also Primordial Qi, to recycle reduction
Sulphur in gas.
6. cascaded utilization of energy device during a kind of carbon heat reducing as described in claim 1, which is characterized in that the lack of gas
Processing system includes vapor filter and exhaust gas cleaner, and the vapor filter is for filtering out in lack of gas due to charcoal
Vapor caused by thermal reduction reaction, the tail gas evolution device is used to carry out purified treatment to part lack of gas, so that lack of gas
Qualified discharge.
7. a kind of cascaded utilization of energy method during carbon heat reducing characterized by comprising
Cooled down to high-temperature flue gas, dedusting and vapor removing processing, obtain low-temperature flue gas, by low-temperature flue gas and circulation lack of gas
The heat released when using cooling high-temperature fume after mixing is heated, and is used for charcoal heat also for gas after heating as reactant
Original reaction；
Also Primordial Qi after carbon heat reducing reaction product progress gas solid separation to be obtained to preliminary purification, cools down to also Primordial Qi, essence
After filtering and condensation process, sulphur of the recycling also in Primordial Qi, and water vapor filtering processing is carried out by the lack of gas after sulphur have been recycled,
Qualified discharge after lack of gas that treated are Partial cleansing is partially circulation lack of gas；
The heat released when using also Primordial Qi cooling heats circulation lack of gas, and the circulation lack of gas after heating are used for charcoal all the way
Temperature adjustment during thermal reduction reaction is reacted with after low-temperature flue gas Hybrid Heating for participating in carbon heat reducing all the way.
8. cascaded utilization of energy method during a kind of carbon heat reducing as claimed in claim 7, which is characterized in that the method
It further include that carbon heat reducing reaction product progress gas solid separation is obtained into solid product, the solid product part is recycled, separately
A part loses the weary burnt discharge of reduction characteristic.
9. cascaded utilization of energy method during a kind of carbon heat reducing as claimed in claim 7, which is characterized in that the high temperature
The heat released when flue gas cool-down is equal to the heat absorbed when gaseous mixture heats up.
10. cascaded utilization of energy method during a kind of carbon heat reducing as claimed in claim 7, which is characterized in that described to go back
The heat that Primordial Qi is released when cooling down is equal to the heat absorbed when circulation lack of gas heating.
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| CN112158840A (en) * | 2020-09-30 | 2021-01-01 | 山东大学 | System and method for high-sulfur high-oxygen smelting flue gas tempering and carbon material activation |
| CN114130311A (en) * | 2021-11-29 | 2022-03-04 | 山东大学 | Integrated device and method for preparing sulfur by activated coke regeneration and cooperative reduction |
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| CN112158840A (en) * | 2020-09-30 | 2021-01-01 | 山东大学 | System and method for high-sulfur high-oxygen smelting flue gas tempering and carbon material activation |
| CN112158840B (en) * | 2020-09-30 | 2022-05-03 | 山东大学 | System and method for high-sulfur high-oxygen smelting flue gas tempering and carbon material activation |
| CN114130311A (en) * | 2021-11-29 | 2022-03-04 | 山东大学 | Integrated device and method for preparing sulfur by activated coke regeneration and cooperative reduction |
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