CN102172470A - Method and device for removing sulfur and carbon oxides from power plant flue gas in combination mode - Google Patents
Method and device for removing sulfur and carbon oxides from power plant flue gas in combination mode Download PDFInfo
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- CN102172470A CN102172470A CN2011100708026A CN201110070802A CN102172470A CN 102172470 A CN102172470 A CN 102172470A CN 2011100708026 A CN2011100708026 A CN 2011100708026A CN 201110070802 A CN201110070802 A CN 201110070802A CN 102172470 A CN102172470 A CN 102172470A
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Abstract
The invention relates to a method and a device for removing sulfur and carbon oxides from power plant flue gas in a combination mode, which are used for removing the sulfur and carbon oxides from the power plant flue gas at high efficiency and low consumption. The method comprises the following steps of: introducing high temperature flue gas subjected to electrostatic precipitation into a heat exchanger and heating decarburized solution in a removing process by using waste heat of the flue gas; feeding the heated decarburized solution into an absorption tower, decomposing ammonia water out and feeding the ammonia water back to an ammonia water storage tank; and allowing low temperature flue gas subjected to heat exchange to enter the removing process in combination with desulfuration and decarburization processes. The invention also provides the device for implementing the method. In the invention, the ammonia water is used as an absorbent, ammonia can be chemically circulated, and the cost of the absorbent is reduced; and the waste heat of the flue gas is effectively utilized to heat the decarburized solution, energy of a power plant can be utilized in a stepped way, and energy consumption during carbon capture is greatly reduced. The method and the device have the characteristics of high efficiency, high cleanness, low energy consumption, high integration of a desulfuration system and a decarburization system and have a wide application prospect on desulfuration and decarburization of a coal fired power plant.
Description
Technical field
The present invention relates to a kind of flue gas purifying method, method and the device that removes sulphur oxycarbide in the power-plant flue gas united in particularly efficient, low energy consumption, belongs to the flue gases purification field.
Background technology
Global warming is unquestionable, and main cause is because the CO2 isothermal chamber gas of fuel drainings such as human burning coal causes.The global thermic anomaly that the greenhouse gases excessive emissions is caused raises and will bring numerous immeasurable adverse effects to the natural ecosystem human society life of unifying.Show that according to OECD and International Energy Agency data about 10,600,000,000 tons of the existing CO2 of power plant annual emissions accounts for 40.6% of whole world total emission volumn, wherein the coal-burning power plant is 7,600,000,000 tons, accounts for 72% of power industry discharge capacity.Therefore, the CO2 of thermal power plant reduction of discharging is the key that realizes reduction of greenhouse gas discharge work.To existing most power plants, separating and catch CO2 in the flue gas of employing burning back is a kind of development trend.Comprehensive Appraisal Study to various burning backs CO2 capture technique show, are the optimization techniques that present CO2 catches based on the CO2 absorption process of chemical solvent.Absorption process removes CO2 and is used widely in chemical industries such as synthetic ammonia, urea, rarely has application but catch CO2 in power-plant flue gas.Tracing it to its cause is that power-plant flue gas has high flow capacity (main flow 300MW unit is about 1,200,000 m3/h), high flow rate, high cigarette temperature (behind the ESP about 120 ℃), relatively low CO2 volume fraction (12 ~ 15%), complicated flue gas coexistence composition characteristics such as (containing PM, SO2, NOX and HCl), and this makes and uses conventional absorption technique to have problems such as systems bulky, investment and operating cost height.What the employing of current flue gas desulfurization field was maximum is typical wet type lime lime-gypsum method, this technology maturation, reliable, but also there is very important problem, wherein desulfuration byproduct gypsum utilization rate is limited, cause the desulfurated plaster of each power plant not to be utilized effectively and be stacked in ash, both waste a limited ash resource, improved the desulfurization operation cost owing to not selling the gypsum income again.Another distinct issues are water consumption problems, and existing wet type lime lime-gypsum method generally about 100-150 ℃, causes evaporation water consumption in the serious absorption tower because the absorption tower entrance flue gas temperature is higher, and the water consumption of flue gas desulphurization system 70-80% just comes from this.
Summary of the invention
Technical problem to be solved by this invention provides method and the device that removes sulphur oxycarbide in the power-plant flue gas of uniting that a kind of efficient, cleaning, low energy consumption, decarbonization desulfurization system height integrate.
The alleged problem of the present invention is solved by following technical scheme:
A kind of method that removes sulphur oxycarbide in the power-plant flue gas of uniting, its special feature is: it is absorbent with ammoniacal liquor, the integrated sulphur oxycarbide that removes in the power-plant flue gas, described method is carried out as follows:
A. the high-temperature flue gas behind the electrostatic precipitation is introduced heat exchanger, utilize the fume afterheat heating to remove solution after the decarburization of operation;
B. enter Analytic Tower through solution after the decarburization of heating, decomposite ammoniacal liquor and be transmitted back to the ammoniacal liquor storage tank;
C. 40 ℃-50 ℃ low-temperature flue gas enters the desulfurizing tower that removes operation after heat exchange, removes sulfur in smoke through ammonia spray herein;
D. flue gas after desulfurization enters the decarbonizing tower that removes operation, by the carbon dioxide in the ammonia spray absorption flue gas, solution is sent into heat exchanger after the decarburization, and flue gas after being purified is removed ammonia in the flue gas through the flue gas condenser condensation, little water droplet that carries in the flue gas and condenser collision and be removed.
The above-mentioned method that removes sulphur oxycarbide in the power-plant flue gas of uniting, in the described a step, high-temperature flue gas with decarburization after solution be heated to 70-80 ℃, solution enters Analytic Tower and is resolved by Steam Heating after the decarburization after the heating; The CO2 of ammonia after resolving that the small part volatilization is escaped enters condenser and removes the escape ammonia, and the CO2 after the separation waits to seal up for safekeeping or trans-utilization.
The above-mentioned method that removes sulphur oxycarbide in the power-plant flue gas of uniting, desulfurizing tower ammonia spray desulfurization in the described c step, ammoniacal liquor adjustment pH 4-6 in the liquid bath is held in desulfurization, the forced oxidation air institute oxidation that the oxidized blower fan of ammonium sulfite provides in liquid bath is held in desulfurization, generate ammonium sulfate, treat that the ammonium sulfate solid content reaches 5-15%(wt%), discharge by drawing pump, after being sent to the solid-liquid separation system dehydration, obtain ammonium sulfate fertilizer.
The above-mentioned method that removes sulphur oxycarbide in the power-plant flue gas of uniting, described d step is used the ammonia spray decarburization in decarbonizing tower, adjust decarburization and hold decarburization ammoniacal liquor pH 8-10 in the liquid bath.
A kind of device that removes sulphur oxycarbide in the power-plant flue gas of uniting, special feature is: it comprises high-temperature flue, desulfurizing tower, decarbonizing tower, Analytic Tower, the ammoniacal liquor storage tank, solution drawing pump after the decarburization, ammoniacal liquor returns pump, desulfurization is for ammonia pump, decarburization is for ammonia pump, high-temperature flue wherein, desulfurizing tower, decarbonizing tower communicates successively, described high-temperature flue place is provided with heat exchanger, liquid bath and heat exchanger entrance are held in the decarburization that the solution drawing pump is communicated with decarbonizing tower respectively after the described decarburization, heat exchanger exit is communicated with the Analytic Tower inlet, described ammoniacal liquor returns pump and is communicated with outlet of Analytic Tower ammoniacal liquor and ammoniacal liquor storage tank respectively, described desulfurization is held liquid bath for the desulfurization that ammonia pump is communicated with ammoniacal liquor storage tank and desulfurizing tower respectively, and decarburization is held liquid bath for the decarburization that ammonia pump is communicated with ammoniacal liquor storage tank and decarbonizing tower respectively.
The above-mentioned device that removes sulphur oxycarbide in the power-plant flue gas of uniting, described decarbonizing tower top is provided with the decarburization nozzle, liquid bath is held in the decarburization that is communicated with decarburization nozzle and decarbonizing tower bottom by the decarburization circulating pump, be provided with the shell and tube flue gas condenser at the decarbonizing tower smoke outlet, the flue gas condenser outlet is communicated with cooling tower.
The above-mentioned device that removes sulphur oxycarbide in the power-plant flue gas of uniting, described desulfurizing tower top is provided with desulfurization nozzle, liquid bath is held in the desulfurization that is communicated with desulfurization nozzle and desulfurization zone bottom by desulfuration recycle pump, desulfurizing tower also is provided with oxidation fan, oxidation fan outlet is led to desulfurization and is held liquid bath, desulfurizing tower also is provided with excavationg pump and equipment for separating liquid from solid, and liquid bath is held in desulfurization with excavationg pump and equipment for separating liquid from solid is communicated with.
The above-mentioned device that removes sulphur oxycarbide in the power-plant flue gas of uniting, the gas vent of described Analytic Tower is communicated with condenser.
The present invention is directed to the problem that current means of flue gas desulfurization of power plant decarburization exists, a kind of method that removes sulphur oxycarbide in the power-plant flue gas of uniting of utilizing fume afterheat to resolve solution after the decarburization is provided, this method adopts ammoniacal liquor as absorbent, and realized the recycling of ammonia, reduce the absorbent cost, solved denitration ammonia in the current atmosphere gaseous contaminant governance process, the desulfurization lime stone, decarburization is with many drawbacks that MEA brought; The present invention effectively utilizes fume afterheat, with solution heating after the decarburization, has changed the single Steam Heating method of traditional parsing, has realized the cascade utilization of power plant's energy, has significantly reduced the energy consumption that carbon captures, and its energy consumption has only about 1/3 of traditional MEA process; It is desulphurization and decarbonization integrated that the present invention adopts the ammonia absorbent to realize, made up novel coal smoke pollution control model, and its desulfuration byproduct has the bigger market that utilizes, and technology has efficiently, the characteristics of cleaning, low energy consumption; And the integration of decarbonization desulfurization system height, having a good application prospect aspect the coal-fired plant flue gas desulfurization and decarburization.
Description of drawings
Fig. 1 is apparatus of the present invention embodiment 1 schematic diagram;
Fig. 2 is apparatus of the present invention embodiment 2 schematic diagrames.
The label implication is as follows in the accompanying drawing: 1, electrostatic precipitator; 2, air-introduced machine; 3, heat exchanger; 4, desulfurizing tower; 5, oxidation fan; 6, equipment for separating liquid from solid; 7, horizontal flue; 8, decarbonizing tower; 9, flue gas condenser; 10, cooling tower; 11, ammoniacal liquor storage tank; 12, Analytic Tower; 13, condenser; 14, ammoniacal liquor returns pump; 15, desulfurization is for ammonia pump; 16, drawing pump; 17, decarburization is for ammonia pump; 18, solution drawing pump after the decarburization; 19, decarburization circulating pump; 20, desulfuration recycle pump; 21, desulfurizing tower nozzle; 22, decarbonizing tower nozzle; 23, high-temperature steam; 24, high-temperature flue.
The specific embodiment
The inventive method is absorbent with ammoniacal liquor, the integrated sulphur oxycarbide that removes in the power-plant flue gas, its process is as follows: the high-temperature flue gas behind the electrostatic precipitation is introduced heat exchanger, utilize fume afterheat heating to remove solution after the decarburization of operation, the gas approach temperature is 100-180 ℃, and the solution inlet port temperature is at 20-30 ℃ after the decarburization.Enter Analytic Tower after solution preheats 70-80 ℃ after the decarburization and carry out the Steam Heating parsing, solution (main component is a carbonic hydroammonium) decomposes after the decarburization herein, ammonia separates with CO2, the CO2 of ammonia after resolving that the small part volatilization is escaped enters condenser and removes the escape ammonia, and the CO2 after the separation waits to seal up for safekeeping or trans-utilization.It is recycling that ammoniacal liquor after ammoniacal liquor after the condenser condenses and Analytic Tower are resolved returns the ammoniacal liquor storage tank that removes operation in the lump.Low-temperature flue gas through the heat exchange cooling enters desulfurizing tower, sprays ammonia spirit herein and removes sulfur in smoke, and ammoniacal liquor forms independent closed circuit, and NH3/SO2 is about 2, and slurries pH is 4-6.Ammoniacal liquor obtains ammonium sulfate behind forced oxidation, treat that the ammoniacal liquor solid content reaches 5-15%(wt%) afterwards to extract out and carry out Separation of Solid and Liquid, isolated ammonium sulfate as fertilizer sources uses.Flue gas after desulfurization enters decarbonizing tower, and the decarburization absorption liquid is an ammoniacal liquor, and NH3/CO2 is 1.4-2.0, and the pH of loop slurry is 8-10, and most herein carbon dioxide are absorbed, and reach 5-10%(wt%) solution is extracted out and is resolved after the decarburization after the concentration.Purify the back flue gas through the flue gas condenser condensation, remove the ammonia of escape, and because knock-on effect can remove the little water droplet that carries in the flue gas, the heavy metal Hg that carries in the part of smoke also can dissolve in the condensed water and be removed (mainly being simple substance mercury), and flue gas can or utilize existing smoke stack emission by the cooling tower smoke evacuation behind the desulfurization and decarburization.
The inventive method has realized the chemical cycle of ammonia, and the reaction equation that the ammoniacal liquor decarburization relates to is as follows:
CO2?+?NH3?+?H2O?→?NH4HCO3
The real reaction more complicated can be considered stepwise reaction, at first generates NH2COONH4:
CO2?+?NH3?→?NH2COONH4
NH2COONH4?+?H2O?→?NH4HCO3?+?NH3
NH3?+?H2O?→?NH4OH
NH4HCO3?+NH4OH?→?(NH4)2CO3?+H2O
(NH4)2CO3?+CO2?+H2O?→?2NH4HCO3
Ammonia process of desulfurization Principle of Process is as follows:
(1)?SO2＋H2O?=?H2SO3 (2)?H2SO3＋(NH4)2SO4=?NH4HSO4＋NH4HSO3 (3)?H2SO3＋(NH4)2SO3?=?2NH4HSO3 (4)?H2SO3＋NH3?=?NH4HSO3 (5)?NH4HSO3＋NH3?=?(NH4)2SO3 (6)?NH4HSO4＋NH3?=?(NH4)2SO4
(7)?(NH4)2SO3＋1/2O2?=?(NH4)2SO4
Referring to Fig. 1, the device of realizing the inventive method comprises after high-temperature flue 24, desulfurizing tower 4, decarbonizing tower 8, Analytic Tower 12, ammoniacal liquor storage tank 11, the decarburization that solution pump extracts 18 out, ammoniacal liquor returns pump 14, for ammonia pump 17, wherein high-temperature flue, desulfurizing tower, decarbonizing tower communicate successively for ammonia pump 15, decarburization in desulfurization.To introduce the heat exchanger 3 that be arranged on high-temperature flue 24 places through the high-temperature flue gas of electrostatic precipitator 1 dedusting by air-introduced machine 2, after the decarburization solution drawing pump with decarburization after solution send into the heat exchanger heating.Heat exchanger exit is communicated with the Analytic Tower inlet, and solution enters Analytic Tower and resolved by high-temperature steam 23 after the decarburization after preheating.Isolated ammoniacal liquor returns blowback by ammoniacal liquor and delivers to the ammoniacal liquor storage tank.Desulfurization is held liquid bath for the desulfurization that ammonia pump is communicated with ammoniacal liquor storage tank and desulfurizing tower respectively, and decarburization is held liquid bath for the decarburization that ammonia pump is communicated with ammoniacal liquor storage tank and decarbonizing tower respectively, and ammoniacal liquor required in whole desulfurization, the decarbonizing process provides by the ammoniacal liquor storage tank.A branch road that directly is communicated with Analytic Tower is set behind solution drawing pump 18 after the decarburization, when the high-temperature flue-gas fluctuation does not reach when adding heat request or the heat exchanger failure problems occurs, can by this branch road with decarburization after solution directly send into Analytic Tower, the holding device running.
Still referring to Fig. 1, be provided with one deck or two-layer desulfurization nozzle 21 on the top of desulfurizing tower 4, hold liquid bath and desulfurization nozzle 21 by the desulfurization that desulfuration recycle pump 20 is communicated with the desulfurizing tower bottom, flue gas after the cooling (50 ℃-70 ℃ of temperature) enters the ammoniacal liquor following current washing desulphurization that desulfurizing tower is desulfurized the nozzle spray, then enters horizontal flue 7 by secondary washing.Desulfurizing tower also is provided with oxidation fan 5, oxidation fan outlet is led to desulfurization and is held liquid bath, the forced oxidation air oxidation that the oxidized blower fan of ammonium sulfite in the liquid bath provides is held in desulfurization, and the ammonium sulfate of generation is drawn out of pump 16 and sends into equipment for separating liquid from solid 6 dehydrations, obtains ammonium sulfate fertilizer.
Still referring to Fig. 1, decarbonizing tower 8 tops are provided with two-layer decarburization nozzle 22, hold liquid bath and decarburization nozzle by the decarburization that decarburization circulating pump 19 is communicated with the decarbonizing tower bottom, the ammoniacal liquor countercurrent washing decarburization that flue gas after the desulfurization is sprayed by the decarburization nozzle at decarbonizing tower, be provided with shell and tube flue gas condenser 9 at the decarbonizing tower smoke outlet, this incomplete structure conventional demister, the escape ammonia that carries in the flue gas is dissolved in the condensed water of flue gas condenser tube wall and is removed, and the little water droplet that flue gas carries also dewaters owing to the tube wall with condenser bumps.Cleaning flue gases is discharged by the cooling tower 10 that is connected with condenser.Also can utilize existing chimney emission.
Still referring to Fig. 1, the gas vent of Analytic Tower 12 is communicated with condenser 13, and the ammonia that CO2 after the parsing and small part volatilization are escaped enters condenser 13 together, and ammonia separates with CO2 after the condensation, and the CO2 after the separation waits to seal up for safekeeping or trans-utilization.Ammoniacal liquor after condenser 13 condensed ammoniacal liquor and Analytic Tower are resolved returns pump 14 by ammoniacal liquor in the lump, and to return ammoniacal liquor storage tank 11 recycling.
Figure 2 shows that another embodiment of apparatus of the present invention, it is applicable to the combined desulfurization decarbonization device that has the desulfurizer unit, heat exchanger 3 is positioned at the tilting section of high-temperature flue 24 among this embodiment, and horizontal flue 7 is communicated with the two on the top of desulfurizing tower 4, decarbonizing tower 8.The operation principle of this device is identical with embodiment 1 with the course of work, does not do at this and gives unnecessary details.
Claims (8)
1. unite the method that removes sulphur oxycarbide in the power-plant flue gas for one kind, it introduces power-plant flue gas the carbon oxysulfide that removes in the desulfurizing tower remove operation, the decarbonizing tower wherein, it is characterized in that: it is absorbent with ammoniacal liquor, remove the sulphur oxycarbide in the power-plant flue gas in the lump, described method is carried out as follows:
A. the high-temperature flue gas behind the electrostatic precipitation is introduced heat exchanger, utilize the fume afterheat heating to remove solution after the decarburization in the operation;
B. enter Analytic Tower through solution after the decarburization of heating, decomposite ammoniacal liquor and be transmitted back to the ammoniacal liquor storage tank;
C. 40 ℃-50 ℃ low-temperature flue gas enters the desulfurizing tower that removes operation after heat exchange, removes sulfur in smoke through ammonia spray herein;
D. flue gas after desulfurization enters the decarbonizing tower that removes operation, by the carbon dioxide in the ammonia spray absorption flue gas, solution is sent into heat exchanger after the decarburization, and flue gas after being purified is removed ammonia in the flue gas through the flue gas condenser condensation, little water droplet that carries in the flue gas and condenser collision and be removed.
2. the method that removes sulphur oxycarbide in the power-plant flue gas of uniting according to claim 1, it is characterized in that: in the described a step, high-temperature flue gas with decarburization after solution be heated to 70-80 ℃, solution enters Analytic Tower and is resolved by Steam Heating after the decarburization after the heating, the CO2 of ammonia after resolving that the small part volatilization is escaped enters condenser and removes the escape ammonia, and the CO2 after the separation waits to seal up for safekeeping or trans-utilization.
3. the method that removes sulphur oxycarbide in the power-plant flue gas of uniting according to claim 2, it is characterized in that: desulfurizing tower ammonia spray desulfurization in the described c step, ammoniacal liquor adjustment pH 4-6 in the liquid bath is held in desulfurization, the forced oxidation air institute oxidation that the oxidized blower fan of ammonium sulfite provides in liquid bath is held in desulfurization, generate ammonium sulfate, treat that the ammonium sulfate solid content reaches 5-15% by wt%, is discharged by drawing pump, after being sent to the solid-liquid separation system dehydration, obtain ammonium sulfate fertilizer.
4. the method that removes sulphur oxycarbide in the power-plant flue gas of uniting according to claim 3 is characterized in that: described d step is used the ammonia spray decarburization in decarbonizing tower, adjusts decarburization and holds decarburization ammoniacal liquor pH 8-10 in the liquid bath.
5. one kind as claim 1,2,3 or the 4 described devices that remove sulphur oxycarbide in the power-plant flue gas of uniting, it is characterized in that: it comprises high-temperature flue (24), desulfurizing tower (4), decarbonizing tower (8), Analytic Tower (12), ammoniacal liquor storage tank (11), solution drawing pump (18) after the decarburization, ammoniacal liquor returns pump (14), desulfurization is for ammonia pump (15), decarburization is for ammonia pump (17), high-temperature flue wherein, desulfurizing tower, decarbonizing tower communicates successively, described high-temperature flue place is provided with heat exchanger (3), liquid bath and heat exchanger entrance are held in the decarburization that the solution drawing pump is communicated with decarbonizing tower respectively after the described decarburization, heat exchanger exit is communicated with the Analytic Tower inlet, described ammoniacal liquor returns pump and is communicated with outlet of Analytic Tower ammoniacal liquor and ammoniacal liquor storage tank respectively, described desulfurization is held liquid bath for the desulfurization that ammonia pump is communicated with ammoniacal liquor storage tank and desulfurizing tower respectively, and decarburization is held liquid bath for the decarburization that ammonia pump is communicated with ammoniacal liquor storage tank and decarbonizing tower respectively.
6. the device that removes sulphur oxycarbide in the power-plant flue gas of uniting according to claim 5, it is characterized in that: described decarbonizing tower (8) top is provided with decarburization nozzle (22), liquid bath is held in the decarburization that is communicated with decarburization nozzle and decarbonizing tower bottom by decarburization circulating pump (19), be provided with shell and tube flue gas condenser (9) at the decarbonizing tower smoke outlet, the flue gas condenser outlet is communicated with cooling tower (10).
7. the device that removes sulphur oxycarbide in the power-plant flue gas of uniting according to claim 6, it is characterized in that: described desulfurizing tower top is provided with desulfurization nozzle (21), liquid bath is held in the desulfurization that is communicated with desulfurization nozzle and desulfurizing tower bottom by desulfuration recycle pump (20), desulfurizing tower also is provided with oxidation fan (5), oxidation fan outlet is led to desulfurization and is held liquid bath, desulfurizing tower also is provided with excavationg pump (16) and equipment for separating liquid from solid (6), and liquid bath is held in desulfurization with excavationg pump and equipment for separating liquid from solid is communicated with.
8. the device that removes sulphur oxycarbide in the power-plant flue gas of uniting according to claim 7 is characterized in that: the gas vent of described Analytic Tower (12) is communicated with condenser (13).
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Cited By (13)
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| CN102671531A (en) * | 2012-05-18 | 2012-09-19 | 华北电力大学（保定） | Method and device for absorbing fume pollutants by using ammonia water as absorbent |
| WO2013053235A1 (en) * | 2011-10-11 | 2013-04-18 | 南京大学 | Process for removing acid gas from flue gas by using waste heat of same |
| CN104437051A (en) * | 2014-11-17 | 2015-03-25 | 傅明冲 | Wet desulphurization and denitrification system and method |
| CN104707451A (en) * | 2014-12-08 | 2015-06-17 | 华北电力大学（保定） | Method for ammonia-process capture of carbon in flue gas and synthesis of chemical products |
| CN105498455A (en) * | 2016-01-29 | 2016-04-20 | 太原理工大学 | Recycling regenerating flue gas carbon capturing device and method |
| CN106268268A (en) * | 2016-08-26 | 2017-01-04 | 江苏中圣高科技产业有限公司 | A kind of ammonifying more also produces desulfurizer and the method for liquid sulfur dioxide |
| CN106474860A (en) * | 2015-08-25 | 2017-03-08 | 贺方昀 | Wet desulfurization flue gas processing system and processing method |
| CN107913598A (en) * | 2018-01-03 | 2018-04-17 | 上海市环境工程设计科学研究院有限公司 | A kind of municipal solid waste incinerator SCR low-temperature denitration catalyst on-line regeneration systems and its renovation process |
| CN108006682A (en) * | 2017-11-22 | 2018-05-08 | 东莞顺裕纸业有限公司 | Smoke processing system |
| CN114471124A (en) * | 2022-03-15 | 2022-05-13 | 南京沃野化工科技有限公司 | Carbon and sulfur emission reduction and carbon and sulfur fixation method |
| CN114870579A (en) * | 2022-05-16 | 2022-08-09 | 江苏新世纪江南环保股份有限公司 | Method and device for recovering waste heat of ammonia desulphurization and decarbonization system |
| WO2022237834A1 (en) * | 2021-05-11 | 2022-11-17 | 江南环保集团股份有限公司 | Ammonia process-based desulfurization and decarburization integrated apparatus and method |
| WO2023232293A1 (en) * | 2022-06-03 | 2023-12-07 | Nuovo Pignone Tecnologie - S.R.L. | Ammonia-utilizing carbon dioxide capture with flue gas desulfurization system, and method |
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