CN106268319A - A kind of method of low cost denitrating flue gas - Google Patents

A kind of method of low cost denitrating flue gas Download PDF

Info

Publication number
CN106268319A
CN106268319A CN201610838690.7A CN201610838690A CN106268319A CN 106268319 A CN106268319 A CN 106268319A CN 201610838690 A CN201610838690 A CN 201610838690A CN 106268319 A CN106268319 A CN 106268319A
Authority
CN
China
Prior art keywords
flue gas
low cost
denitrfying agent
dried
denitrating flue
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610838690.7A
Other languages
Chinese (zh)
Inventor
王文庆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongguan Lianzhou Intellectual Property Operation and Management Co Ltd
Original Assignee
Dongguan Lianzhou Intellectual Property Operation and Management Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dongguan Lianzhou Intellectual Property Operation and Management Co Ltd filed Critical Dongguan Lianzhou Intellectual Property Operation and Management Co Ltd
Priority to CN201610838690.7A priority Critical patent/CN106268319A/en
Publication of CN106268319A publication Critical patent/CN106268319A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B01D53/8621—Removing nitrogen compounds
    • B01D53/8625—Nitrogen oxides
    • B01D53/8628—Processes characterised by a specific catalyst
    • 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
    • B01D53/90—Injecting reactants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/26—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
    • B01J31/32—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24 of manganese, technetium or rhenium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/106—Silica or silicates
    • B01D2253/11—Clays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/112—Metals or metal compounds not provided for in B01D2253/104 or B01D2253/106
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/20—Organic adsorbents
    • 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

Landscapes

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

Abstract

A kind of method that the invention discloses low cost denitrating flue gas, the method includes: by the flue gas after desulfurization and dedusting under conditions of catalytic-reduction denitrified, disturbance medium is injected in the mixture of denitrfying agent and flue gas, the mixture of denitrfying agent and flue gas is carried out disturbance, then denitrfying agent is contacted with catalyst with the mixture of flue gas.Catalyst uses potter's clay, polymethyl methacrylate, sodium carboxymethyl cellulose to mix as carrier, and is loaded with the good manganese of low-temperature catalytic activity, cerium metal oxide.The method denitration efficiency is high, it is possible to achieve denitration under cryogenic conditions, has saved cost.

Description

A kind of method of low cost denitrating flue gas
Technical field:
The present invention relates to air contaminant treatment field, a kind of method being specifically related to low cost denitrating flue gas.
Background technology:
NOXBeing one of primary pollution source causing atmospheric pollution, it includes NO, NO2, N2O5, N2O3, NO3, N2O4Deng, pollute Mainly NO and NO of air2。NOXDischarge can bring serious harm to natural environment and human being's production, activity, including right The intoxicating effect of human body, detrimental effect, formation acid rain or the acid mist to plant and Hydrocarbon form photochemical fog, break Bad ozone layer etc..NOXSource be generally divided into natural source and artificial source, along with industrial expansion, mankind's activity produces NOXHave become as its main source, at present, NOXPollution situation caused the extensive concern of international community.
In recent years, the research that nitrogen oxides controls technology both at home and abroad makes great progress.Gas denitrifying technology is A kind of NOXThe technology being controlled after generation, mainly fixes the NO in flue gas by various physics, chemical processXOr make cigarette NO in gasXIt is reduced into N2, also referred to as flue-gas denitrification technology.Conventional method has catalytic reduction method, absorbs and adsorbs three classes.Right It is under the effect of catalyst in catalytic reduction method, denitrfying agent and the NO in flue gasXReaction generates harmless N2And water, thus remove Remove the NO in flue gasX.Catalyst, the kind of denitrfying agent are to affect NOXThe key of removal efficiency, if its selection is improper, not only makes Denitration efficiency reduces, and improves the cost of denitration.
Summary of the invention:
It is an object of the invention to provide a kind of low cost denitration method for flue gas, the method denitration efficiency is high, denitrfying agent, catalysis Agent usage amount is little, and catalyst uses the time long, is greatly saved cost.
For achieving the above object, the present invention is by the following technical solutions:
A kind of method of low cost denitrating flue gas, the method includes: by the flue gas after desulfurization and dedusting in catalysis reduction Under conditions of denitration, in the mixture of denitrfying agent and flue gas, inject disturbance medium, the mixture of denitrfying agent and flue gas is carried out Disturbance, then contacts denitrfying agent with catalyst with the mixture of flue gas；
Wherein, the preparation method of described catalyst comprises the following steps:
(1) potter's clay, polymethyl methacrylate and sodium carboxymethyl cellulose are disperseed in ethanol, mix homogeneously, obtain Mixture；
(2) mixture is put in mould compressing, at 110-115 DEG C be dried 12-15h, obtain dried object；
(3) dried object step (2) prepared is through high-temperature calcination 2h, after taking out cooling, pulverizes and sieves point to particle diameter 20-30 Mesh；
(4) granule after sieving is immersed in salpeter solution, processes 1-4h, then filter, use deionization at 60-80 DEG C Water washs, and is dried, and the most dried material is immersed in the precursor solution of manganese, cerium, stands 10-20h, is dried, finally exists Calcine 2h under inert gas shielding at 400-500 DEG C, obtain catalyst.
Preferred as technique scheme, described denitrfying agent be by agstone, kieselguhr, carbamide, water is compounding forms.
Preferred as technique scheme, described agstone, kieselguhr, carbamide, the mass ratio of water are (5-8): 10: (0.5-1.1): (3-6).
Preferred as technique scheme, described disturbance medium is one or both mixing of air or nitrogen.
Preferred as technique scheme, in step (2), described compressing time pressure be 10-20MPa.
Preferred as technique scheme, in step (3), the temperature of described high-temperature calcination is 900-1200 DEG C, calcining Time using argon, helium or nitrogen as protective gas.
Preferred as technique scheme, in step (4), described manganese presoma is in manganese nitrate, manganese acetate, manganese acetate One, the presoma of cerium is the one in cerous nitrate, cerium ammonium nitrate.
Preferred as technique scheme, in step (4), the mass concentration of described salpeter solution is 35-55%.
Preferred as technique scheme, in step (1), described potter's clay, polymethyl methacrylate and carboxymethyl are fine The mass ratio of dimension element sodium is (15-20): (8-12): 5.
The method have the advantages that
First the present invention carries out desulfurization and dust removal process to flue gas, it is to avoid high grey high sulfur type flue gas causes catalyst pores to be blocked up Plug, sulfur poisoning, but also improve the efficiency of denitration, save cost；The present invention use potter's clay, polymethyl methacrylate and Sodium carboxymethyl cellulose is compounding is loaded with the oxide of manganese, cerium as carrier, and this catalyst low-temperature catalytic activity is good, Ke Yiyou Effect improves the efficiency of denitration, and its service life is long, is greatly saved denitration cost；The denitrfying agent adsorption efficiency that the present invention uses Height, asepsis environment-protecting.
Detailed description of the invention:
In order to be better understood from the present invention, below by embodiment, the present invention is further described, and embodiment is served only for solving Release the present invention, the present invention will not be constituted any restriction.
Embodiment 1
(1) preparation of catalyst:
A) potter's clay, polymethyl methacrylate and sodium carboxymethyl cellulose are disperseed in ethanol, mix homogeneously, mixed Compound, wherein, the mass ratio of potter's clay, polymethyl methacrylate and sodium carboxymethyl cellulose is 15:8:5；
B) being put in mould by mixture compressing, pressure during molding is 10MPa, is dried 12h, obtains at 110 DEG C Dried object；
C) using dried object prepared for step (b) at argon as 900 DEG C of calcining 2h under conditions of protective gas, take out cooling After, pulverize and sieve point to particle diameter 20-30 mesh；
D) granule after sieving is immersed in the salpeter solution that mass concentration is 35%, processes 1h, then mistake at 60 DEG C Filter, is washed with deionized, and is dried, and the most dried material is immersed in the solution of manganese nitrate, cerous nitrate, stands 10h, dry Dry, under inert gas shielding, finally at 400 DEG C, calcine 2h, obtain catalyst；
(2) by the flue gas after desulfurization and dedusting under conditions of catalytic-reduction denitrified, to denitrfying agent and the mixing of flue gas Thing injects disturbance medium, the mixture of denitrfying agent and flue gas is carried out disturbance, then by the mixture of denitrfying agent and flue gas with Catalyst contacts；Wherein, denitrfying agent is to be compounded formed by agstone, kieselguhr, carbamide, water, and the mass ratio of each component is 5: 10:0.5:3.
Embodiment 2
(1) preparation of catalyst:
A) potter's clay, polymethyl methacrylate and sodium carboxymethyl cellulose are disperseed in ethanol, mix homogeneously, mixed Compound, wherein, the mass ratio of potter's clay, polymethyl methacrylate and sodium carboxymethyl cellulose is 20:12:5；
B) being put in mould by mixture compressing, pressure during molding is 20MPa, is dried 15h, obtains at 115 DEG C Dried object；
C) using dried object prepared for step (b) at helium as 1200 DEG C of calcining 2h under conditions of protective gas, take out cold But, after, pulverize and sieve point to particle diameter 20-30 mesh；
D) granule after sieving is immersed in the salpeter solution that mass concentration is 55%, processes 4h, then mistake at 80 DEG C Filter, is washed with deionized, and is dried, and the most dried material is immersed in the solution of manganese acetate, cerium ammonium nitrate, stands 20h, It is dried, under inert gas shielding, finally at 500 DEG C, calcines 2h, obtain catalyst；
(2) by the flue gas after desulfurization and dedusting under conditions of catalytic-reduction denitrified, to denitrfying agent and the mixing of flue gas Thing injects disturbance medium, the mixture of denitrfying agent and flue gas is carried out disturbance, then by the mixture of denitrfying agent and flue gas with Catalyst contacts；Wherein, denitrfying agent is to be compounded formed by agstone, kieselguhr, carbamide, water, and the mass ratio of each component is 8: 10:1.1:6.
Embodiment 3
(1) preparation of catalyst:
A) potter's clay, polymethyl methacrylate and sodium carboxymethyl cellulose are disperseed in ethanol, mix homogeneously, mixed Compound, wherein, the mass ratio of potter's clay, polymethyl methacrylate and sodium carboxymethyl cellulose is 16:9:5；
B) being put in mould by mixture compressing, pressure during molding is 15MPa, is dried 13h, obtains at 110 DEG C Dried object；
C) using dried object prepared for step (b) at nitrogen as 1000 DEG C of calcining 2h under conditions of protective gas, take out cold But, after, pulverize and sieve point to particle diameter 20-30 mesh；
D) granule after sieving is immersed in the salpeter solution that mass concentration is 40%, processes 2h, then mistake at 65 DEG C Filter, is washed with deionized, and is dried, and the most dried material is immersed in the solution of manganese nitrate, cerium ammonium nitrate, stands 12h, It is dried, under inert gas shielding, finally at 420 DEG C, calcines 2h, obtain catalyst；
(2) by the flue gas after desulfurization and dedusting under conditions of catalytic-reduction denitrified, to denitrfying agent and the mixing of flue gas Thing injects disturbance medium, the mixture of denitrfying agent and flue gas is carried out disturbance, then by the mixture of denitrfying agent and flue gas with Catalyst contacts；Wherein, denitrfying agent is to be compounded formed by agstone, kieselguhr, carbamide, water, and the mass ratio of each component is 6: 10:0.7:4.
Embodiment 4
(1) preparation of catalyst:
A) potter's clay, polymethyl methacrylate and sodium carboxymethyl cellulose are disperseed in ethanol, mix homogeneously, mixed Compound, wherein, the mass ratio of potter's clay, polymethyl methacrylate and sodium carboxymethyl cellulose is 17:10:5；
B) being put in mould by mixture compressing, pressure during molding is 20MPa, is dried 14h, obtains at 110 DEG C Dried object；
C) using dried object prepared for step (b) at nitrogen as 1100 DEG C of calcining 2h under conditions of protective gas, take out cold But, after, pulverize and sieve point to particle diameter 20-30 mesh；
D) granule after sieving is immersed in the salpeter solution that mass concentration is 45%, processes 3h, then mistake at 70 DEG C Filter, is washed with deionized, and is dried, and the most dried material is immersed in the solution of manganese acetate, cerous nitrate, stands 14h, dry Dry, under inert gas shielding, finally at 460 DEG C, calcine 2h, obtain catalyst；
(2) by the flue gas after desulfurization and dedusting under conditions of catalytic-reduction denitrified, to denitrfying agent and the mixing of flue gas Thing injects disturbance medium, the mixture of denitrfying agent and flue gas is carried out disturbance, then by the mixture of denitrfying agent and flue gas with Catalyst contacts；Wherein, denitrfying agent is to be compounded formed by agstone, kieselguhr, carbamide, water, and the mass ratio of each component is 7: 10:0.8:5.
Embodiment 5
(1) preparation of catalyst:
A) potter's clay, polymethyl methacrylate and sodium carboxymethyl cellulose are disperseed in ethanol, mix homogeneously, mixed Compound, wherein, the mass ratio of potter's clay, polymethyl methacrylate and sodium carboxymethyl cellulose is 18:11:5；
B) being put in mould by mixture compressing, pressure during molding is 20MPa, is dried 14h, obtains at 115 DEG C Dried object；
C) using dried object prepared for step (b) at argon as 1150 DEG C of calcining 2h under conditions of protective gas, take out cold But, after, pulverize and sieve point to particle diameter 20-30 mesh；
D) granule after sieving is immersed in the salpeter solution that mass concentration is 50%, processes 3.5h, then at 75 DEG C Filtering, be washed with deionized, be dried, the most dried material is immersed in the solution of manganese acetate, cerium ammonium nitrate, stands 17h, is dried, and finally calcines 2h under inert gas shielding at 475 DEG C, obtains catalyst；
(2) by the flue gas after desulfurization and dedusting under conditions of catalytic-reduction denitrified, to denitrfying agent and the mixing of flue gas Thing injects disturbance medium, the mixture of denitrfying agent and flue gas is carried out disturbance, then by the mixture of denitrfying agent and flue gas with Catalyst contacts；Wherein, denitrfying agent is to be compounded formed by agstone, kieselguhr, carbamide, water, and the mass ratio of each component is 7.5:10:1:5.5.

Claims (9)

1. the method for a low cost denitrating flue gas, it is characterised in that the method includes: the flue gas after desulfurization and dedusting is existed Under conditions of catalytic-reduction denitrified, in the mixture of denitrfying agent and flue gas, inject disturbance medium, denitrfying agent and flue gas are mixed Compound carries out disturbance, is then contacted with catalyst with the mixture of flue gas by denitrfying agent；
Wherein, the preparation method of described catalyst comprises the following steps:
(1) potter's clay, polymethyl methacrylate and sodium carboxymethyl cellulose are disperseed in ethanol, mix homogeneously, mixed Thing；
(2) mixture is put in mould compressing, at 110-115 DEG C be dried 12-15h, obtain dried object；
(3) dried object step (2) prepared is through high-temperature calcination 2h, after taking out cooling, pulverizes and sieves point to particle diameter 20-30 mesh；
(4) granule after sieving is immersed in salpeter solution, processes 1-4h, then filter, be washed with deionized water at 60-80 DEG C Washing, be dried, the most dried material is immersed in the precursor solution of manganese, cerium, stands 10-20h, is dried, finally in inertia Calcine 2h under gas shield at 400-500 DEG C, obtain catalyst.
The method of a kind of low cost denitrating flue gas the most as claimed in claim 1, it is characterised in that: described denitrfying agent is by Calx Stone powder, kieselguhr, carbamide, water are compounding to be formed.
The method of a kind of low cost denitrating flue gas the most as claimed in claim 2, it is characterised in that: described agstone, diatom Soil, carbamide, the mass ratio of water are (5-8): 10:(0.5-1.1): (3-6).
The method of a kind of low cost denitrating flue gas the most as claimed in claim 1, it is characterised in that: described disturbance medium is air Or one or both mixing of nitrogen.
The method of a kind of low cost denitrating flue gas the most as claimed in claim 1, it is characterised in that: in step (2), described compacting Pressure during molding is 10-20MPa.
The method of a kind of low cost denitrating flue gas the most as claimed in claim 1, it is characterised in that: in step (3), described high temperature The temperature of calcining is 900-1200 DEG C, using argon, helium or nitrogen as protective gas during calcining.
The method of a kind of low cost denitrating flue gas the most as claimed in claim 1, it is characterised in that: in step (4), before described manganese Driving body is the one in manganese nitrate, manganese acetate, manganese acetate, and the presoma of cerium is the one in cerous nitrate, cerium ammonium nitrate.
The method of a kind of low cost denitrating flue gas the most as claimed in claim 1, it is characterised in that: in step (4), described nitric acid The mass concentration of solution is 35-55%.
The method of a kind of low cost denitrating flue gas the most as claimed in claim 1, it is characterised in that: in step (1), described pottery The mass ratio of soil, polymethyl methacrylate and sodium carboxymethyl cellulose is (15-20): (8-12): 5.
CN201610838690.7A 2016-09-21 2016-09-21 A kind of method of low cost denitrating flue gas Pending CN106268319A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610838690.7A CN106268319A (en) 2016-09-21 2016-09-21 A kind of method of low cost denitrating flue gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610838690.7A CN106268319A (en) 2016-09-21 2016-09-21 A kind of method of low cost denitrating flue gas

Publications (1)

Publication Number Publication Date
CN106268319A true CN106268319A (en) 2017-01-04

Family

ID=57711458

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610838690.7A Pending CN106268319A (en) 2016-09-21 2016-09-21 A kind of method of low cost denitrating flue gas

Country Status (1)

Country Link
CN (1) CN106268319A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101940879A (en) * 2010-05-21 2011-01-12 中国神华能源股份有限公司 Selective catalytic reduction denitration method of flue gas
EP2783741A2 (en) * 2011-01-26 2014-10-01 Ford Global Technologies, LLC SCR and LNT catalysts for combined LNT-SCR applications
CN105289648A (en) * 2015-12-01 2016-02-03 北京贞吉环保科技有限公司 Globular low temperature flue gas denitration catalyst as well as preparation method and application thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101940879A (en) * 2010-05-21 2011-01-12 中国神华能源股份有限公司 Selective catalytic reduction denitration method of flue gas
EP2783741A2 (en) * 2011-01-26 2014-10-01 Ford Global Technologies, LLC SCR and LNT catalysts for combined LNT-SCR applications
CN105289648A (en) * 2015-12-01 2016-02-03 北京贞吉环保科技有限公司 Globular low temperature flue gas denitration catalyst as well as preparation method and application thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
张人佶: "《先进成形制造实用技术》", 31 August 2009, 北京：清华大学出版社 *
杨飏: "《氮氧化物减排技术与烟气脱硝工程》", 31 January 2007, 北京：冶金工业出版社 *

Similar Documents

Publication Publication Date Title
CN104888806B (en) A kind of regeneration method that inactivation vanadium titanium-based Faveolate denitration catalyst combined denitration demercuration is modified
CN103949291B (en) Denitrating catalyst regenerated liquid, regenerated liquid preparation method and catalyst recovery process
CN109092325A (en) A kind of catalyst and the preparation method and application thereof for low-temperature denitration of flue gas
CN102814201A (en) Cleaning and regeneration method for SCR denitration catalyst poisoned by arsenic component in flue
CN101474581B (en) Catalyst module edge hardening liquid with activity
CN110479094A (en) A kind of desulphurization catalyst and the flue gas desulfurization processing system based on desulphurization catalyst
CN108355665A (en) Energy simultaneous SO_2 and NO removal has spinel structure catalyst and its preparation method and application
CN108855023A (en) A kind of preparation method and denitrating technique of catalyst for denitrating flue gas
CN105195170A (en) SCR (Selective Catalytic Reduction) denitration catalyst, and preparation method and application thereof
CN104888845A (en) Platinum/cerium aluminum-molecular sieve catalyst for catalytic oxidation of ammonia gas and preparation method thereof
CN206911092U (en) A kind of high-efficiency desulfurization denitrating system using ozone oxidation
CN104190358A (en) NOx adsorber
CN111589415A (en) Preparation method of active carbon loaded with zinc oxide in situ
CN106334443A (en) Low-temperature coke oven flue gas desulfurizing and denitrifying process
CN113351172B (en) Preparation method of denitration and CO2 adsorption material and prepared adsorption material
CN106475108B (en) A kind of multiple-effect denitrating catalyst and preparation method thereof
CN103877929B (en) Absorption NO xadsorbent and preparation method
CN112934229A (en) Method for preparing activated carbon by adding vanadium-containing ore
CN103894184B (en) A kind of high-specific surface area vanadium zinc system's modification denitrating catalyst and preparation method
JP2005081189A (en) Catalyst for denitrifying high temperature waste gas
CN102806083B (en) Catalyst for removing nitrogen oxide in high-temperature flue gas containing sulfur oxide and preparation method
CN106110763B (en) A kind of air purifying filter mesh and preparation method thereof
CN106268319A (en) A kind of method of low cost denitrating flue gas
WO2018214360A1 (en) Neutral complex cleaning liquid for calcium-poisoned denitration catalyst and regeneration method
CN109174097B (en) Catalyst for desulfurization and denitrification of metallurgical sintering flue gas and preparation method thereof

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20170104