CN106268222A - Ammonia spray photocatalyst dielectric barrier discharge method simultaneous SO_2 and NO removal the method for resource - Google Patents

Ammonia spray photocatalyst dielectric barrier discharge method simultaneous SO_2 and NO removal the method for resource Download PDF

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Publication number
CN106268222A
CN106268222A CN201610867203.XA CN201610867203A CN106268222A CN 106268222 A CN106268222 A CN 106268222A CN 201610867203 A CN201610867203 A CN 201610867203A CN 106268222 A CN106268222 A CN 106268222A
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photocatalyst
tio
removal
ammonia
spray
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刘盛余
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Chengdu University of Information Technology
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Chengdu University of Information Technology
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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
    • B01D53/86—Catalytic processes
    • B01D53/8637—Simultaneously removing sulfur oxides and 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
    • B01D53/32—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 electrical effects other than those provided for in group B01D61/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20707—Titanium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20738—Iron
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/80—Type of catalytic reaction
    • B01D2255/802—Photocatalytic
    • 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
    • B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
    • B01D2259/818—Employing electrical discharges or the generation of a plasma
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Treating Waste Gases (AREA)

Abstract

The invention discloses a kind of ammonia spray photocatalyst dielectric barrier discharge method simultaneous SO_2 and NO removal the method for resource.First by 1～3mm TiO2Ferrite photocatalyst and mass concentration be 15～30% ammonia be configured to concentration be 30～50% suspension as flowing phase electric discharge block media, by slurry circulating pump from reaction of low temperature plasma device top spray；Then, during coal-fired flue-gas enters this reactor after dedusting, catalysis oxidation completes simultaneous SO_2 and NO removal, and also and ammonia reaction generates ammonium sulfate and ammonium nitrate；Finally when in reactor, ammonium sulfate and ammonium nitrate mass concentration are in 30～40%, in releasing part solution to magnetic separator, TiO2Ferrite photocatalyst is separated and is returned in reactor assembly, and ammonium sulfate and ammonium nitrate mixed liquor evaporative crystallization obtain compound fertilizer.The application present invention processes coal-fired flue-gas, SO2Industrial Boiler discharge standard is met with NOx, and simple to operate, and device, through gathering, substantially increases capacity usage ratio, and achieves SO2Resource with NOx.

Description

Ammonia-spray photocatalyst dielectric barrier discharge method simultaneous SO_2 and NO removal resource Method
Technical field
The invention belongs to environmental technology field, a kind of method relating to flue gas and desulfurizing and denitrifying resource, particularly as It is ammonia-spray photocatalyst dielectric barrier discharge method simultaneous SO_2 and NO removal the method for resource.
Background technology
In recent years, lower temperature plasma technology is used widely in coal-fired flue gas desulfurization and denitration field, and researcher designs A series of plasma reactors, can be divided into from structure of reactor that line is board-like, spool formula, point to board-like, filling bed type with And combined type etc..But the most single plasma technique is to SO2Relatively low with NOx treatment effeciency, capacity usage ratio is low, energy consumption Height, target product selectivity are low.In recent years, low-temperature plasma synergistic catalysis technique set reaction of low temperature plasma and urging The feature that the advantage changing reaction, existing energy of plasma and activity are high, has again the advantage that catalyst choice is strong, the lowest Isothermal plasma concerted catalysis technology process have that energy consumption is low in terms of pollutant, low cost and the advantage such as floor space is little.
The most conventional plasma body cooperative catalytic reactor is that " two-part ", i.e. flue gas pollutant first pass through Gas ions region, flue gas carries out catalytic reaction by catalyst area, such as Chinese patent again through plasma-activated CN101773780A proposes the method for a kind of plasma body cooperative catalysis NO removing nitrogen oxides, dielectric barrier discharge generator Form with catalyst fixed bed reactors in series.Chinese patent CN102166474A proposes a kind of low-temperature plasma system two Phase catalytic unit and harmful gas emission processing method, first pass through catalytic oxidizing equipment, then by heating region, the most again By reduction catalysts device.The advantage of this " two-part " reactor is to operate and easy to control, and shortcoming is due to plasma Reaction and catalytic reaction are the most collaborative in different regions, i.e. plasma reaction and catalytic reaction does not obtain fully Interact.
Catalyst is supported on carrier by exactly, is then attached in plasma discharge, is formed and is situated between Matter barrier discharge and catalysis collaborative, such as Chinese patent CN202921165U, but just for the nitrogen oxides in flue gas.This The high energy electron quantity that mounting medium barrier discharge obtains is low, and energy density is little, and catalysis oxygenation efficiency is low.
The catalyst how using flowing phase forms medium discharge and improves energy density, realizes cigarette in same reactor SO in gas2High catalysis oxygenation efficiency and SO with NOx2With NOx resource, thus reduce operating cost, reduce floor space.
Use the dielectric barrier discharge spraying into atomization shape at photocatalyst at present, simultaneously in this plasma reactor Spray ammonia, it is thus achieved that ammonium sulfate and the Patents of ammonium nitrate compound fertilizer and document have no report.
Summary of the invention
It is fixed in plasma discharge to solve photocatalyst in current block media electric discharge, energy density Little, catalysis oxygenation efficiency is low, and does not has in same reactor to realize SO in flue gas simultaneously2With the high catalysis oxygenation efficiency of NOx with And SO2With NOx resource, the invention provides a kind of ammonia-spray photocatalyst dielectric barrier discharge method simultaneous SO_2 and NO removal also The method of resource.
Ammonia-spray photocatalyst dielectric barrier discharge method simultaneous SO_2 and NO removal the method for resource, first by 1～3mm TiO2Ferrite photocatalyst and mass concentration be 15～30% ammonia be configured to containing TiO2Ferrite photocatalyst quality is dense Degree be 30～50% suspension as the electric discharge block media of flowing phase, add in reaction of low temperature plasma device, and pass through Slurry circulating pump circulates continuously from reaction of low temperature plasma device top spray；Then coal-fired flue-gas is after dedusting, and entrance follows Ring spray drenches TiO2In ferrite photocatalyst block media discharge lines-cylinder reaction of low temperature plasma device, control operating condition and exist In this reactor catalysis aoxidize simultaneous SO_2 and NO removal and and the ammonia of system react generation ammonium sulfate and ammonium nitrate, after purification Flue gas is discharged from air vent；Finally when in reaction of low temperature plasma device ammonium sulfate and ammonium nitrate mass concentration 30～40% Time, in releasing part solution to magnetic separator, TiO2Ferrite photocatalyst is separated by magnetic separator and returns to plasma In reactor according system, ammonium sulfate and ammonium nitrate mixed liquor enter crystallizing evaporator evaporative crystallization acquisition ammonium sulfate and ammonium nitrate is multiple Hefei.
Described ammonia-spray photocatalyst dielectric barrier discharge method simultaneous SO_2 and NO removal the method for resource, its feature It is TiO2The preparation of ferrite photocatalyst refers to use electrophoretic deposition or sol-gel process load 50～70% (quality is divided Number) TiO2On the ferroferric oxide powder of 0～2mm, then dry screening and obtain the TiO of 1～3mm2Ferrite photocatalysis Agent.
Described ammonia-spray photocatalyst dielectric barrier discharge method simultaneous SO_2 and NO removal the method for resource, its feature It is circulated sprinkling TiO2Ferrite photocatalyst block media discharge lines-cylinder reaction of low temperature plasma device refers to spray TiO2 Ferrite photocatalyst suspension mist droplet particle size 3～4mm, gas ions voltage is 30～65kV, and electric current is 0.4～0.9A.
Described ammonia-spray photocatalyst dielectric barrier discharge method simultaneous SO_2 and NO removal the method for resource, its feature It is to control operating condition in plasma reactor, to be catalyzed oxidation complete simultaneous SO_2 and NO removal and refer to that liquid suspension sprays Flow and flue gas flow ratio are 10-15L/m3, absorbing liquid pH value is 6～8, absorbing liquid temperature 25～55 DEG C, flue gas wait from The time of staying in daughter is 5～6s.
The application present invention processes coal-fired flue-gas, SO2Industrial Boiler discharge standard is met with NOx, and simple to operate, device Through gathering, substantially increase capacity usage ratio, and achieve SO2Resource with NOx.
Accompanying drawing explanation
Fig. 1 is ammonia-spray photocatalyst dielectric barrier discharge method simultaneous SO_2 and NO removal the invention flow chart of resource
In Fig. 1,1. smoke inlet, 2. plasma reactor, 3. electrode (positive pole), 4. power supply, 5. aluminum net (negative pole), 7. Earth lead, 8.TiO2Ferrite photocatalyst suspension circulating pump, 9. mixed liquor effusion meter, 10. pipeline, 11. shower nozzles, 12. valves Door, 13. magnetic separators, 14. absorbing liquid circulatory pools, 15. compound fertilizer's serum outlet, 16. purifying smoke outlets, 17.TiO2Ferrum Oxysome photocatalyst bypass outlet
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in detail, in order to is better understood from present disclosure, the most such as Under.
Embodiment 1
Process certain industry coal-boiler flue gas 10000m3/ h, SO2 1200mg/m3, NOx 1350mg/m3, enter circulation spray Drench TiO2In ferrite photocatalyst block media discharge lines-cylinder reaction of low temperature plasma device, voltage is 55kV, and electric current is The TiO of 0.7A, 2mm2Ferrite photocatalyst mass concentration is 15%, and liquid suspension spray flow with flue gas flow ratio is 15L/m3, absorbing liquid pH value is 6, absorbing liquid temperature 35 DEG C, and the flue gas time of staying in the plasma is 5s, SO after process2Go Except rate is 98.5%, NOx clearance is 95.5%.
Embodiment 2
Process certain heat supply fire coal boiler fume 5000m3/ h, SO2 2300mg/m3, NOx 900mg/m3, enter circulated sprinkling TiO2In ferrite photocatalyst block media discharge lines-cylinder reaction of low temperature plasma device, voltage is 45kV, and electric current is The TiO of 0.6A, 3mm2Ferrite photocatalyst mass concentration is 20%, and liquid suspension spray flow with flue gas flow ratio is 12L/m3, absorbing liquid pH value is 8, absorbing liquid temperature 45 C, and the flue gas time of staying in the plasma is 6s, SO after process2Go Except rate is 95.5%, NOx clearance is 93.5%.

Claims (4)

1. ammonia-spray photocatalyst dielectric barrier discharge method simultaneous SO_2 and NO removal the method for resource, it is characterised in that first By the TiO of 1～3mm2Ferrite photocatalyst and mass concentration be 15～30% ammonia be configured to containing TiO2Ferrite photocatalysis Agent mass concentration be 30～50% suspension as flowing phase electric discharge block media, add reaction of low temperature plasma device In, and circulated continuously from reaction of low temperature plasma device top spray by slurry circulating pump；Then coal-fired flue-gas is through dedusting After, enter circulated sprinkling TiO2In ferrite photocatalyst block media discharge lines-cylinder reaction of low temperature plasma device, control behaviour Condition of making be catalyzed in the reactor aoxidized simultaneous SO_2 and NO removal and and the ammonia reaction generation ammonium sulfate and ammonium nitrate of system, Flue gas after purification is discharged from air vent；Finally when in reaction of low temperature plasma device ammonium sulfate and ammonium nitrate mass concentration 30 ～when 40%, in releasing part solution to magnetic separator, TiO2Ferrite photocatalyst is separated by magnetic separator and returns to In plasma reactor system, ammonium sulfate and ammonium nitrate mixed liquor enter crystallizing evaporator evaporative crystallization and obtain ammonium sulfate and nitre Acid ammonium compound fertilizer.
2. ammonia-spray photocatalyst dielectric barrier discharge method simultaneous SO_2 and NO removal as claimed in claim 1 the side of resource Method, it is characterised in that TiO2Ferrite photocatalyst preparation refer to use electrophoretic deposition or sol-gel process load 50～ The TiO of 70% (mass fraction)2On the ferroferric oxide powder of 0～2mm, then dry screening and obtain the TiO of 1～3mm2Ferrum Oxysome photocatalyst.
3. ammonia-spray photocatalyst dielectric barrier discharge method simultaneous SO_2 and NO removal as claimed in claim 1 the side of resource Method, it is characterised in that circulated sprinkling TiO2Ferrite photocatalyst block media discharge lines-cylinder reaction of low temperature plasma device is Refer to spray TiO2Ferrite photocatalyst suspension mist droplet particle size 3～4mm, gas ions voltage is 30～65kV, electric current be 0.4～ 0.9A。
4. ammonia-spray photocatalyst dielectric barrier discharge method simultaneous SO_2 and NO removal as claimed in claim 1 the side of resource Method, it is characterised in that control operating condition and be catalyzed oxidation in plasma reactor and complete simultaneous SO_2 and NO removal and refer to that liquid is outstanding Float spray flow and flue gas flow ratio are 10-15L/m3, absorbing liquid pH value is 6～8, absorbing liquid temperature 25～55 DEG C, cigarette The gas time of staying in the plasma is 5～6s.
CN201610867203.XA 2016-09-30 2016-09-30 Ammonia spray photocatalyst dielectric barrier discharge method simultaneous SO_2 and NO removal the method for resource Pending CN106268222A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107899577A (en) * 2017-10-24 2018-04-13 当涂县瑞龙果树种植专业合作社 One kind is without vanadium based denitration catalyst and preparation method thereof
CN109224855A (en) * 2018-11-26 2019-01-18 佛山科学技术学院 A kind of organic pollutant, which is used, has Athermal plasma concerted catalysis processing equipment
CN110672656A (en) * 2019-07-31 2020-01-10 安徽江南化工股份有限公司 Device for detecting concentration of liquid ammonium nitrate
CN110841471A (en) * 2019-10-29 2020-02-28 南京浩普环境科技有限公司 Integrated multi-medium catalytic waste gas treatment device and use method thereof
CN114146548A (en) * 2021-11-15 2022-03-08 南通山剑石墨设备有限公司 Waste gas desulfurization and denitrification system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63182023A (en) * 1987-01-23 1988-07-27 Mitsubishi Heavy Ind Ltd Treatment of exhaust gas by pulse charge
CN1277888A (en) * 2000-06-02 2000-12-27 黄立维 Method for purifying organic waste gas
CN2535115Y (en) * 2002-04-01 2003-02-12 广东杰特科技发展有限公司 Vertical streamer-discharge flue gas desulfurizing wet reactor
CN101773780A (en) * 2010-03-23 2010-07-14 昆明理工大学 Method for depriving nitric oxide by plasma cooperating with low-temperature catalytic oxidation NO
CN102166474A (en) * 2011-03-10 2011-08-31 江苏大学 Low-temperature plasma cooperating two-phase catalyzing device and harmful exhaust gas processing method
CN202921165U (en) * 2012-11-01 2013-05-08 昆明理工大学 Reactor used for removing NO by utilizing concerted catalysis of low-temperature plasma
CN105944524A (en) * 2016-06-08 2016-09-21 黄立维 Method and device for removing harmful gas through discharging plasmas

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63182023A (en) * 1987-01-23 1988-07-27 Mitsubishi Heavy Ind Ltd Treatment of exhaust gas by pulse charge
CN1277888A (en) * 2000-06-02 2000-12-27 黄立维 Method for purifying organic waste gas
CN2535115Y (en) * 2002-04-01 2003-02-12 广东杰特科技发展有限公司 Vertical streamer-discharge flue gas desulfurizing wet reactor
CN101773780A (en) * 2010-03-23 2010-07-14 昆明理工大学 Method for depriving nitric oxide by plasma cooperating with low-temperature catalytic oxidation NO
CN102166474A (en) * 2011-03-10 2011-08-31 江苏大学 Low-temperature plasma cooperating two-phase catalyzing device and harmful exhaust gas processing method
CN202921165U (en) * 2012-11-01 2013-05-08 昆明理工大学 Reactor used for removing NO by utilizing concerted catalysis of low-temperature plasma
CN105944524A (en) * 2016-06-08 2016-09-21 黄立维 Method and device for removing harmful gas through discharging plasmas

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
喻黎明等: "低温合成TiO2/Fe3O4磁载光催化剂的光催化性能研究", 《北京化工大学学报(自然科学版)》 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107899577A (en) * 2017-10-24 2018-04-13 当涂县瑞龙果树种植专业合作社 One kind is without vanadium based denitration catalyst and preparation method thereof
CN109224855A (en) * 2018-11-26 2019-01-18 佛山科学技术学院 A kind of organic pollutant, which is used, has Athermal plasma concerted catalysis processing equipment
CN110672656A (en) * 2019-07-31 2020-01-10 安徽江南化工股份有限公司 Device for detecting concentration of liquid ammonium nitrate
CN110841471A (en) * 2019-10-29 2020-02-28 南京浩普环境科技有限公司 Integrated multi-medium catalytic waste gas treatment device and use method thereof
CN114146548A (en) * 2021-11-15 2022-03-08 南通山剑石墨设备有限公司 Waste gas desulfurization and denitrification system
CN114146548B (en) * 2021-11-15 2023-12-29 南通山剑石墨设备有限公司 Exhaust gas desulfurization and denitrification system

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Application publication date: 20170104