CN105344200A - Technology for raising capture efficiency of carbon dioxide in flue gas by utilization of water vapor - Google Patents

Technology for raising capture efficiency of carbon dioxide in flue gas by utilization of water vapor Download PDF

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CN105344200A
CN105344200A CN201510759528.1A CN201510759528A CN105344200A CN 105344200 A CN105344200 A CN 105344200A CN 201510759528 A CN201510759528 A CN 201510759528A CN 105344200 A CN105344200 A CN 105344200A
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flue gas
carbon dioxide
coal dust
steam
oxygen
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江东
黄天
梁君祚
梁承悍
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Guangxi Guisheng New Energy Science & Technology Co Ltd
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Guangxi Guisheng New Energy Science & Technology Co Ltd
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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
    • B01D53/005—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 by heat treatment
    • 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
    • B01D53/54—Nitrogen compounds
    • B01D53/56—Nitrogen oxides
    • 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
    • B01D53/77—Liquid phase processes
    • B01D53/78—Liquid phase processes with gas-liquid contact
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
    • F23L7/002—Supplying water
    • F23L7/005—Evaporated water; Steam
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N3/00—Regulating air supply or draught
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/206—Ammonium compounds
    • B01D2251/2062—Ammonia
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/206—Ammonium compounds
    • B01D2251/2067—Urea
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/40—Nitrogen compounds
    • B01D2257/402—Dinitrogen oxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/40—Nitrogen compounds
    • B01D2257/404—Nitrogen oxides other than dinitrogen oxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/50—Carbon oxides
    • B01D2257/504—Carbon dioxide
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/12—Methods and means for introducing reactants
    • B01D2259/124—Liquid reactants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2215/00—Preventing emissions
    • F23J2215/50—Carbon dioxide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L2900/00—Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber
    • F23L2900/07009—Injection of steam into the combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2237/00—Controlling
    • F23N2237/16—Controlling secondary air
    • 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
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/32—Direct CO2 mitigation

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Treating Waste Gases (AREA)

Abstract

The invention discloses a technology for raising capture efficiency of carbon dioxide in flue gas by utilization of water vapor. The technology comprises the following steps: firstly, high temperature flue gas generated by boiler combustion is subjected to waste heat recovery, and heat generated through recovery heats medium water into water vapor with a temperature of 210-230 DEG C; secondly, part of the water vapor and primary air are sent to a hearth of a boiler, thus coal dust burns in a first combustion flame region, the coal dust is sent to a second flame region with rotational flow; part of the water vapor and secondary air are mixed and sent to the second flame region where coal dust burns, and thus the coal dust is subjected to oxygen deficient combustion in the second combustion flame region; thirdly, part of the water vapor and tertiary air are mixed and sent to a third flame region where the whole combustion coal dust is completed. The situation is avoided that contents of NOx and SO2 in flue gas are raised along with increase of cycle number, and the CO2 capture efficiency is raised.

Description

A kind of technique steam being applied to raising carbon dioxide in flue gas capturing efficiency
Technical field
The present invention relates to boiler environmental technology field, particularly a kind of technique steam being applied to raising carbon dioxide in flue gas capturing efficiency.
Background technology
The pollutant of fuel combustion discharge is the major part of atmosphere pollution, and smoke components is CO mainly 2, a small amount of water vapour, a small amount of O 2, N 2and pollutant NOx and SO 2.Along with the quick growth of energy demand and the sharply increase of fuel use amount, cause greenhouse gases CO 2continue to increase in natural cumulant, control fuel combustion process CO 2discharge, for reply greenhouse effects and global warming there is important effect.Particularly for China, in view of the feature of its energy resource structure based on coal, CO 2emission level sharply increases and has occupy the present situation of No. 1 in the world, develops efficient coal-fired CO 2emission-reduction technology, controls the coal-fired CO of China 2emission level, has great social effect and economic worth.
Fuel combustion techniques is divided into oxygen-enriched combustion technology and combustion with meagre oxygen technology, combustion with meagre oxygen technology can suppress the generation of NOx, and there is certain energy-saving effect, the energy-saving principle of combustion with meagre oxygen is: recycle high-temperature flue gas, high-temperature flue gas can maintain the high-temperature in burner hearth, thus the fuel quantity that needs are fed and air capacity are just reduced.
But, find after deliberation, directly utilize high-temperature flue gas to carry out circulation and still have a large amount of problem to exist: S1, circulation due to a large amount of flue gas, cause NOx and SO in flue gas 2content can the continuous enrichment along with the increase of cycle-index, flue gas recirculation repeatedly simultaneously can increase air leakage phenomena, and makes N in flue gas 2content increases; CO in S2, reduction combustion with meagre oxygen flue gas 2concentration, and then increase the difficulty of subsequent compression purifying, reduce CO 2capture rate, be unfavorable for CO 2further exploitation; S3, a large amount of flue gas recirculations can cause boiler easily the phenomenons such as fouling to occur, and increase the weight of the burden of boiler attendance.
Summary of the invention
The invention provides a kind of technique steam being applied to raising carbon dioxide in flue gas capturing efficiency, while the generation of effective control NOx, can CO be improved 2capturing efficiency.
For achieving the above object, technical scheme of the present invention is:
Steam is applied to the technique improving carbon dioxide in flue gas capturing efficiency, comprises the following steps:
S1, waste heat recovery is carried out to the high-temperature flue gas that boiler combustion produces, reclaim the heat that generates by the water vapour of medium water heating generation 210 ~ 230 DEG C;
S2, First air is sent into the burner hearth of boiler, make coal dust in the burning of burning first flame district and with eddy flow, coal dust sent into the second flame district; Wherein a part of steam mixes with Secondary Air, and send into the second flame district of coal dust firing, the volume ratio of steam and Secondary Air is 1 ~ 2:38, makes coal dust form combustion with meagre oxygen in burning second flame district, at suppression NO xwhile generating, improve the seizure effect of carbon dioxide in flue gas;
S3, general wherein a part of steam mix with tertiary air, and send into the 3rd flame district that coal dust completes whole burning, the volume ratio that steam mixes with tertiary air is 1 ~ 2:35, catches the carbon dioxide in flue gas;
The flue gas of S4, generation is isolated after dust through cyclone separator, carries out waste heat recovery, after gas cleaning, by compressibility, gas treatment is become Liquid segregation recovery CO wherein 2, remaining gas is discharged from chimney.
Further, described First air oxygen-supplying amount is 75 ~ 79% of fuel combustion oxygen demand; Described Secondary Air oxygen-supplying amount is 15 ~ 19% of fuel combustion oxygen demand; Described tertiary air oxygen-supplying amount is 2 ~ 6% of fuel combustion oxygen demand.
Preferred, described First air oxygen-supplying amount is 78% of fuel combustion oxygen demand; Described Secondary Air oxygen-supplying amount is 18% of fuel combustion oxygen demand; Described tertiary air oxygen-supplying amount is 4% of fuel combustion oxygen demand.
Further, described boiler furnace is in the 3rd flame district part and is provided with reducing agent spray gun, and reducing agent is sprayed into the 3rd flame district and reduces NO by reducing agent spray gun xdischarge.
Further, described reducing agent is ammoniacal liquor or urea liquid.
The present invention has the following advantages:
(1) the heat heating medium water of high-temperature flue gas is utilized, by mixing of steam and First air, Secondary Air and tertiary air, regulate temperature and the boiler heat exchange state of burner hearth Flame, compared with traditional combustion with meagre oxygen mode, do not recycle the use of circulating flue gas, avoid NOx and SO in flue gas 2content can the continuous enrichment along with the increase of cycle-index, improve CO simultaneously 2capture rate;
(2) what strictly control First air, Secondary Air and tertiary air send oxygen amount, effectively suppresses thermal NO x to be formed;
(3) avoid the repeatedly circulation of flue gas, alleviate the burden of boiler, there is the advantage of energy-conserving and environment-protective;
(4) CO in flue gas is conducive to 2recycling, cost-saving, achieve the development of recycling economy.
Accompanying drawing explanation
Fig. 1 is process flow diagram of the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment, the invention will be further described, but protection scope of the present invention and range of application are not limited to following examples:
Embodiment 1
Steam is applied to the technique improving carbon dioxide in flue gas capturing efficiency, shown in composition graphs 1, comprises the following steps:
S1, waste heat recovery is carried out to the high-temperature flue gas that boiler combustion produces, reclaim the heat that generates by the water vapour of medium water heating generation 210 ~ 220 DEG C;
S2, First air is sent into the burner hearth of boiler, make coal dust in the burning of burning first flame district and with eddy flow, coal dust sent into the second flame district; Wherein a part of steam mixes with Secondary Air, and send into the second flame district of coal dust firing, the volume ratio of steam and Secondary Air is 1:19, makes coal dust form combustion with meagre oxygen in burning second flame district, at suppression NO xwhile generating, improve the seizure effect of carbon dioxide in flue gas;
S3, general wherein a part of steam mix with tertiary air, and send into the 3rd flame district that coal dust completes whole burning, the volume ratio that steam mixes with tertiary air is 2:35, catches the carbon dioxide in flue gas;
The flue gas of S4, generation is isolated after dust through cyclone separator, carries out waste heat recovery, after gas cleaning, by compressibility, gas treatment is become Liquid segregation recovery CO wherein 2, remaining gas is discharged from chimney.
Wherein, First air oxygen-supplying amount is 75% of fuel combustion oxygen demand; Described Secondary Air oxygen-supplying amount is 19% of fuel combustion oxygen demand; Described tertiary air oxygen-supplying amount is 6% of fuel combustion oxygen demand.
For reducing NO further xdischarge, be in the 3rd flame district part at boiler furnace and be provided with reducing agent spray gun, reducing agent is sprayed into the 3rd flame district by reducing agent spray gun, and the reducing agent that spray gun sprays into is ammoniacal liquor or urea liquid.
Wherein, medium water is that water is put into heater, and the heat utilizing high-temperature flue gas to reclaim heats.
CO after above-mentioned steps purified treatment 2concentration be 90 ~ 91%.
Embodiment 2
Steam is applied to the technique improving carbon dioxide in flue gas capturing efficiency, shown in composition graphs 1, comprises the following steps:
S1, waste heat recovery is carried out to the high-temperature flue gas that boiler combustion produces, reclaim the heat that generates by the water vapour of medium water heating generation 225 ~ 230 DEG C;
S2, First air is sent into the burner hearth of boiler, make coal dust in the burning of burning first flame district and with eddy flow, coal dust sent into the second flame district; Wherein a part of steam mixes with Secondary Air, and send into the second flame district of coal dust firing, the volume ratio of steam and Secondary Air is 1.5:38, makes coal dust form combustion with meagre oxygen in burning second flame district, at suppression NO xwhile generating, improve the seizure effect of carbon dioxide in flue gas;
S3, general wherein a part of steam mix with tertiary air, and send into the 3rd flame district that coal dust completes whole burning, the volume ratio that steam mixes with tertiary air is 1:35, catches the carbon dioxide in flue gas;
The flue gas of S4, generation is isolated after dust through cyclone separator, carries out waste heat recovery, after gas cleaning, by compressibility, gas treatment is become Liquid segregation recovery CO wherein 2, remaining gas is discharged from chimney.
Wherein, First air oxygen-supplying amount is 78% of fuel combustion oxygen demand; Described Secondary Air oxygen-supplying amount is 18% of fuel combustion oxygen demand; Described tertiary air oxygen-supplying amount is 4% of fuel combustion oxygen demand.
For reducing NO further xdischarge, be in the 3rd flame district part at boiler furnace and be provided with reducing agent spray gun, reducing agent is sprayed into the 3rd flame district by reducing agent spray gun, and the reducing agent that spray gun sprays into is ammoniacal liquor or urea liquid.
Wherein, medium water is that water is put into heater, and the heat utilizing high-temperature flue gas to reclaim heats.
CO after above-mentioned steps purified treatment 2concentration be 92.0 ~ 92.5%.
Embodiment 3
Steam is applied to the technique improving carbon dioxide in flue gas capturing efficiency, shown in composition graphs 1, comprises the following steps:
S1, waste heat recovery is carried out to the high-temperature flue gas that boiler combustion produces, reclaim the heat that generates by the water vapour of medium water heating generation 220 ~ 225 DEG C;
S2, First air is sent into the burner hearth of boiler, make coal dust in the burning of burning first flame district and with eddy flow, coal dust sent into the second flame district; Wherein a part of steam mixes with Secondary Air, and send into the second flame district of coal dust firing, the volume ratio of steam and Secondary Air is 1:38, makes coal dust form combustion with meagre oxygen in burning second flame district, at suppression NO xwhile generating, improve the seizure effect of carbon dioxide in flue gas
S3, general wherein a part of steam mix with tertiary air, and send into the 3rd flame district that coal dust completes whole burning, the volume ratio that steam mixes with tertiary air is 1.5:35, catches the carbon dioxide in flue gas;
The flue gas of S4, generation is isolated after dust through cyclone separator, carries out waste heat recovery, after gas cleaning, by compressibility, gas treatment is become Liquid segregation recovery CO wherein 2, remaining gas is discharged from chimney.
Wherein, First air oxygen-supplying amount is 79% of fuel combustion oxygen demand; Described Secondary Air oxygen-supplying amount is 15% of fuel combustion oxygen demand; Described tertiary air oxygen-supplying amount is 6% of fuel combustion oxygen demand.
For reducing NO further xdischarge, be in the 3rd flame district part at boiler furnace and be provided with reducing agent spray gun, reducing agent is sprayed into the 3rd flame district by reducing agent spray gun, and the reducing agent that spray gun sprays into is ammoniacal liquor or urea liquid.
Wherein, medium water is that water is put into heater, and the heat utilizing high-temperature flue gas to reclaim heats.
CO after above-mentioned steps purified treatment 2concentration be 88 ~ 88.5%.
Above content is in conjunction with concrete preferred embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention; make some equivalent alternative or obvious modification without departing from the inventive concept of the premise; and performance or purposes identical, all should be considered as belonging to the scope of patent protection that the present invention is determined by submitted to claims.

Claims (5)

1. steam is applied to the technique improving carbon dioxide in flue gas capturing efficiency, it is characterized in that comprising the following steps:
S1, waste heat recovery is carried out to the high-temperature flue gas that boiler combustion produces, reclaim the heat that generates by the water vapour of medium water heating generation 210 ~ 230 DEG C;
S2, First air is sent into the burner hearth of boiler, make coal dust in the burning of burning first flame district and with eddy flow, coal dust sent into the second flame district; Wherein a part of steam mixes with Secondary Air, and send into the second flame district of coal dust firing, the volume ratio of steam and Secondary Air is 1 ~ 2:38, makes coal dust form combustion with meagre oxygen in burning second flame district, at suppression NO xwhile generating, improve the seizure effect of carbon dioxide in flue gas;
S3, general wherein a part of steam mix with tertiary air, and send into the 3rd flame district that coal dust completes whole burning, the volume ratio that steam mixes with tertiary air is 1 ~ 2:35, catches the carbon dioxide in flue gas;
The flue gas of S4, generation is isolated after dust through cyclone separator, carries out waste heat recovery, after gas cleaning, by compressibility, gas treatment is become Liquid segregation recovery CO wherein 2, remaining gas is discharged from chimney.
2. a kind of technique steam being applied to raising carbon dioxide in flue gas capturing efficiency according to claim 1, is characterized in that:
Described First air oxygen-supplying amount is 75 ~ 79% of fuel combustion oxygen demand; Described Secondary Air oxygen-supplying amount is 15 ~ 19% of fuel combustion oxygen demand; Described tertiary air oxygen-supplying amount is 2 ~ 6% of fuel combustion oxygen demand.
3. a kind of technique steam being applied to raising carbon dioxide in flue gas capturing efficiency according to claim 2, is characterized in that:
Described First air oxygen-supplying amount is 78% of fuel combustion oxygen demand; Described Secondary Air oxygen-supplying amount is 18% of fuel combustion oxygen demand; Described tertiary air oxygen-supplying amount is 4% of fuel combustion oxygen demand.
4. a kind of technique steam being applied to raising carbon dioxide in flue gas capturing efficiency according to claim 1, is characterized in that:
Described boiler furnace is in the 3rd flame district part and is provided with reducing agent spray gun, and reducing agent is sprayed into the 3rd flame district and reduces NO by reducing agent spray gun xdischarge.
5. a kind of technique steam being applied to raising carbon dioxide in flue gas capturing efficiency according to claim 4, is characterized in that:
Described reducing agent is ammoniacal liquor or urea liquid.
CN201510759528.1A 2015-11-09 2015-11-09 Technology for raising capture efficiency of carbon dioxide in flue gas by utilization of water vapor Pending CN105344200A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106679155A (en) * 2017-02-07 2017-05-17 佛山市顺德区奇林电气有限公司 Low-carbon, energy-saving and highly environmental gas heating energy water heater
CN108636059A (en) * 2018-05-03 2018-10-12 太原理工大学 A kind of collecting carbonic anhydride and regenerated integrated apparatus and method

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Publication number Priority date Publication date Assignee Title
CN1583225A (en) * 2004-05-25 2005-02-23 华中科技大学 Method for inhibition and reduction of NOx in furnace
CN103062745A (en) * 2012-12-17 2013-04-24 华中科技大学 Water vapor circularly adjusting type oxygen-enriched combustion method for pulverized coal boiler
WO2015019375A1 (en) * 2013-08-09 2015-02-12 Unicenergy S.R.L Process for real time combustible gas production

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1583225A (en) * 2004-05-25 2005-02-23 华中科技大学 Method for inhibition and reduction of NOx in furnace
CN103062745A (en) * 2012-12-17 2013-04-24 华中科技大学 Water vapor circularly adjusting type oxygen-enriched combustion method for pulverized coal boiler
WO2015019375A1 (en) * 2013-08-09 2015-02-12 Unicenergy S.R.L Process for real time combustible gas production

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106679155A (en) * 2017-02-07 2017-05-17 佛山市顺德区奇林电气有限公司 Low-carbon, energy-saving and highly environmental gas heating energy water heater
CN108636059A (en) * 2018-05-03 2018-10-12 太原理工大学 A kind of collecting carbonic anhydride and regenerated integrated apparatus and method
CN108636059B (en) * 2018-05-03 2020-06-05 太原理工大学 Integrated device and method for capturing and regenerating carbon dioxide

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Application publication date: 20160224