CN101676024A - Faviform ammonia-method selective-catalytic-reduction denitrified catalyst and preparation method thereof - Google Patents

Faviform ammonia-method selective-catalytic-reduction denitrified catalyst and preparation method thereof Download PDF

Info

Publication number
CN101676024A
CN101676024A CN200810212081A CN200810212081A CN101676024A CN 101676024 A CN101676024 A CN 101676024A CN 200810212081 A CN200810212081 A CN 200810212081A CN 200810212081 A CN200810212081 A CN 200810212081A CN 101676024 A CN101676024 A CN 101676024A
Authority
CN
China
Prior art keywords
catalyst
faviform
catalytic
ammonia
selective
Prior art date
Application number
CN200810212081A
Other languages
Chinese (zh)
Inventor
马少丹
赵晓林
孙海军
何冬青
Original Assignee
晶锐瓷业（北京）有限公司
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 晶锐瓷业（北京）有限公司 filed Critical 晶锐瓷业（北京）有限公司
Priority to CN200810212081A priority Critical patent/CN101676024A/en
Publication of CN101676024A publication Critical patent/CN101676024A/en

Links

Abstract

The invention relates to a faviform ammonia-method selective-catalytic-reduction denitrified catalyst and a preparation method thereof. The invention is characterized in that the catalyst uses TiO2 with a special specific surface area as the carrier and uses V2O5 and WO3 as the catalyst and the cocatalyst, various assistants favorable for the catalyst to form, disperse and perforate are simultaneously added, and the faviform denitrified catalyst is obtained in short drying time and calcination time. The catalyst comprises the following components in weight percent: 80-99% of TiO2, 0.1-2% of V2O5 and 5-10% of WO3. The method selects the TiO2 with the special specific surface area as the carrier, simultaneously adds the proper forming assistants and combines the special preparation techniqueso as to obtain the faviform denitrified catalyst with high strength and favorable forming performance and enhance the denitration activity of the catalyst; when the trial denitration test is carriedout on the faviform denitrified catalyst in a small-size coal burning boiler, the airspeed is 5000/hr, and the concentration of NOX is about 100 ppmv; when the fume temperature is 350 DEG C, the denitration efficiency reaches 95%; and after long-term operation, the denitration efficiency is still above 80%.

Description

A kind of Faviform ammonia-method selective-catalytic-reduction denitrified catalyst and preparation method thereof

Technical field

The present invention relates to a kind of Faviform ammonia-method selective-catalytic-reduction denitrified catalyst and preparation method thereof

Background technology

Nitrogen oxide (NOx) is one of major pollutants of atmospheric environment, it is one of main source of acid rain, can cause serious destruction to environment, for human, nitrogen oxide belongs to toxic and harmful, and human body directly sucks, and can damage nervous centralis and lung tissue, NOx in the atmosphere also can generate the bigger photochemical fog of toxicity under certain condition, causes the withered and crowd's death of plant.Nitrogen oxide mainly comes from the industrial processes of vehicle exhaust, heat power station and other industrial fuel combustions and nitric acid, nitrogenous fertilizer, explosive, maximum with the quantity that produces in the fuel combustion process, account for more than 30%, wherein the 70% direct burning that comes from coal.SCR (SCR) method that with NH3 is reducing agent is the effective method of present denitrating flue gas, and it mainly adopts V 2O 5-WO 3/ TiO 2Catalyst, such catalyst eighties of last century the seventies and eighties has begun industrialization production abroad, has good activity and anti-water and SO2 performance.

Present commercial V 2O 5-WO 3/ TiO 2Class SCR denitrating catalyst mainly contains three kinds of forms: honeycomb fashion, flat and corrugated plate dst.Flat and corrugated plate dst catalyst is to coat certain thickness active material on the metallic support surface, and metallic supports does not have catalytic activity, so its persistence and wear resistance are relatively poor; Simultaneously owing to when practical application, be subject to the specification of floor height, the flexibility deficiency, two-layer catalyst setting in each framework is for later replacing brings certain inconvenience.The honeycomb fashion catalyst has uniform physical chemistry structure, possess stronger anti-poisoning capability and wearability, thereby service life is longer, and the production technology of extruded type makes it possess the ability that volume and performance are complementary, and needs how long just can cut as required.And, because the major accident of catalyst is caused by the burning of dust stratification that generally the honeycomb fashion catalyst can be not combustion-supporting owing to all being made by ceramics based active material, and is safe and reliable; Flat and corrugated plate dst catalyst has metal architecture, can cause the destruction of whole catalyst during breaking out of fire.

Chinese east Dongfang Boiler (Group) Co., Ltd. of electric group in 2005 and German KWH build Chengdu Dongfang KWH Environmental Protection Catalysts Co., Ltd jointly, a complete set of technology and equipment of introducing German KWH company.The intervention of offshore company has caused not autonomous on China's technology and equipment, causes passive on economic right, can suppress the growth of Chinese domestic enviromental protection enterprise, and China does not still have the vanadium based denitration catalyst of industrialized independent intellectual property right.Therefore accelerate the denitrating catalyst of the national independent intellectual property right of research, become the significant problem that each enviromental protection enterprise of China and R﹠D institution need to be resolved hurrily.

At present domestic patent about denitrating catalyst of having applied for has tens of kinds more than, the patent disclosure of Chinese patent application CN03122008.8 a kind of extrusion molding of honeycomb molded body cellular catalyst for treating waste gas good, that constitute by the powder of titanium dioxide and/or titanium composite oxide with raw material and the catalyst that uses high de-agglomeration activity this raw material, that have organic halogen compound and high denitrification activity.At 300 ℃, air speed is 10000hr -1Situation under, denitration efficiency preferably reaches 95%, but the TiO of this kind denitrating catalyst that this patent is announced 2The powder process complexity is to carrier TiO 2The character of powder requires comparatively harsh.The patent disclosure of Chinese patent application numbers 200710097827.9 a kind of Ti-base catalyst and preparation method who is used for coal steam-electric plant smoke SCR denitration.This catalyst is with 80～99% TiO 2With 1～20% sieve and silica-sesquioxide be carrier, extrude and be honeycomb ceramics, then with the method for dipping at honeycomb ceramics surface-coated active component V 2O 5And WO 3Owing to be surface-coated, so the vanadium load capacity is higher, and wear-corrosion resistance is poor.

Summary of the invention

The objective of the invention is to, according to present status in China, provide a kind of preparation technology simple relatively, intensity height, Faveolate denitration catalyst that denitration activity is high and preparation method thereof.

The Faviform ammonia-method selective-catalytic-reduction denitrified catalyst that the present invention proposes is characterized in that described catalyst is with TiO 2Be carrier, V 2O 5Be active component, WO 3Be co-catalyst.

Said catalyst carrier TiO 2With Detitanium-ore-type TiO 2Be raw material, specific area is at 90m 2About/g, content is 80% of catalyst weight percentage composition.

Above-mentioned activity of such catalysts component V 2O 5Form with ammonium metavanadate adds, and content is the 0.1%-5% of catalyst weight percentage composition, co-catalyst WO 3Form with ammonium paratungstate adds, and content is the 1%-20% of catalyst weight percentage composition.

Above-mentioned catalyst adds various auxiliary agents such as clay, methylcellulose, PEO, Ludox, glass fibre, MEA in preparation process.

The Faviform ammonia-method selective-catalytic-reduction denitrified catalyst that the present invention proposes is characterized in that catalyst preparation process comprises the steps:

(1) preparation of carrier slurry

Get TiO 2Powder is to add 60 ℃ warm water under 60～80 ℃ of water bath condition to stir in temperature, obtains the carrier slurry;

(2) adding of the load of active component and other auxiliary agents

Get in whipping process in the carrier slurry that ammonium metavanadate and ammonium paratungstate slowly join step (1), add various auxiliary agents then, it is suitable to continue to be stirred to water content;

(3) pug mill mixes with old

Transfer in the vacuum deairing machine through the suitable slurry that is stirred to water content in the step (2) and mix, keeping old under the constant situation of humidity, continue then to mix then, it is half an hour that pug is practiced the system time at every turn, the old time is 8 hours, so repeatedly for several times, obtains practicing the pug that makes;

(4) extrusion molding

Practicing the pug that makes in the step (3) is honeycomb ceramics through extruder for shaping.

(5) drying of catalyst and roasting

The honeycomb ceramics of extrusion molding is dry in the controlled drying box of controlled humidity, rate of drying in the step (4), baking temperature is 60～100 ℃, and be 3～6 days drying time, calcines through electric furnace again, 300～600 ℃ of roasting 12～24h obtain final honeycombed catalyst.

The present invention selects the anatase titanium dioxide TiO with certain specific surface area for use 2Be carrier, add the V of different amounts 2O 5Special slurrying, drying and roasting technique, prepared the honeycomb-shaped SCR denitrating catalyst that processability is good, intensity is big, denitration efficiency is high, overcome the fragility and a cracking difficult problem of ceramic material in the catalyst activation temperature interval, simultaneously through pilot-scale experiment as can be known this catalyst have more lasting activity, be installed in small scall coal-fired boiler, air speed is 5000/hr, NO XConcentration is about 100ppmv, and when flue-gas temperature was 350 ℃, after the long-time running, denitration effect was still more than 80%.

The specific embodiment

Below in conjunction with embodiment technical characterictic of the present invention is further specified:

Embodiment 1

Get TiO 2Powder is to add 60 ℃ warm water under 80 ℃ of water bath condition to stir in temperature, obtains the carrier slurry; Get ammonium metavanadate and ammonium paratungstate and slowly join in the carrier slurry that stirs in whipping process, the addition of ammonium metavanadate and ammonium paratungstate is converted into V 2O 5Later and the TiO with WO3 2Ratio be 1: 4: 45, add various auxiliary agent clays, methylcellulose, PEO, Ludox, glass fibre, MEA then, continue to be stirred to transfer in the vacuum deairing machine after water content suits and mix, practicing the system time is half an hour, practice the pug that makes and keeping old under the constant situation of humidity, the old time is 8 hours, continues then to mix, so repeatedly for several times; Final to practice the pug that makes be honeycomb ceramics through extruder for shaping, and dry in the controlled drying box of controlled humidity, rate of drying then, baking temperature is 60 ℃, be 6 days drying time, through the electric furnace calcining, 550 ℃ of roasting 12h obtain final honeycombed catalyst again.

The catalyst denitration activity method of testing that makes is: in the small scall coal-fired boiler of trying out during the honeycomb catalyst for preparing is installed in, test is through the concentration of NO in the flue gas before the catalyst and the concentration of the NO after the process catalyst respectively, thereby calculate the conversion ratio of NO, obtain the denitration efficiency of catalyst.

Can obtain from the denitration test result, be 350 ℃ in flue-gas temperature, and NO concentration is about 100ppmv, and air speed is under the condition of 5000/hr, and initial denitration efficiency reaches 90%.After 200 hours, test its denitration efficiency, still more than 80%.

Embodiment 2

Get TiO 2Powder is to add 60 ℃ warm water under 70 ℃ of water bath condition to stir in temperature, obtains the carrier slurry; Get ammonium metavanadate and ammonium paratungstate and slowly join in the carrier slurry that stirs in whipping process, the addition of ammonium metavanadate and ammonium paratungstate is converted into V 2O 5Later and the TiO with WO3 2Ratio be 1: 8: 91, add various auxiliary agent clays, methylcellulose, PEO, Ludox, glass fibre, MEA then, continue to be stirred to transfer in the vacuum deairing machine after water content suits and mix, practicing the system time is half an hour, practice the pug that makes and keeping old under the constant situation of humidity, the old time is 8 hours, continues then to mix, so repeatedly for several times; Final to practice the pug that makes be honeycomb ceramics through extruder for shaping, and dry in the controlled drying box of controlled humidity, rate of drying then, baking temperature is 80 ℃, be 5 days drying time, through the electric furnace calcining, 500 ℃ of roasting 24h obtain final honeycombed catalyst again.

The catalyst denitration activity method of testing that makes is with embodiment 1.In flue-gas temperature is 350 ℃, and NO concentration is about 100ppmv, air speed be under the condition of 5000/hr denitration efficiency more than 90%.

Embodiment 3

Get TiO 2Powder is to add 60 ℃ warm water under 70 ℃ of water bath condition to stir in temperature, obtains the carrier slurry; Take by weighing the ammonium paratungstate and the ammonium metavanadate powder of respective quality, slowly join concentration be under 60 ℃ of water-baths in 5% the oxalic acid solution, after waiting to dissolve, join in the above-mentioned slurry again and continue to stir, the addition of ammonium metavanadate and ammonium paratungstate is converted into V 2O 5Later and the TiO with WO3 2Ratio be 1.6: 8: 80, add various auxiliary agent clays, methylcellulose, PEO, Ludox, glass fibre, MEA then, continue to be stirred to transfer in the vacuum deairing machine after water content suits and mix, practicing the system time is half an hour, practice the pug that makes and keeping old under the constant situation of humidity, the old time is 8 hours, continues then to mix, so repeatedly for several times; Final to practice the pug that makes be honeycomb ceramics through extruder for shaping, and dry in the controlled drying box of controlled humidity, rate of drying then, baking temperature is 60 ℃, be 3 days drying time, through the electric furnace calcining, 450 ℃ of roasting 24h obtain final honeycombed catalyst again.

The catalyst denitration activity method of testing that makes is with embodiment 1.In flue-gas temperature is 350 ℃, and NO concentration is about 100ppmv, and air speed is that denitration efficiency is 87% under the condition of 5000/hr.

Embodiment 4

Take by weighing the TiO of certain mass 2Powder stirs under 60 ℃ of water-baths and obtains carrier TiO 2Slurry.The ammonium paratungstate that takes by weighing respective quality then joins in the above-mentioned slurry and continues to stir, and the ammonium paratungstate addition is converted into after the WO3 and TiO 2Ratio be 1: 10, stir later slurry in drying box 100 ℃ dry 2 hours down, 500 ℃ of calcinings 5 hours down in Muffle furnace then, calcined product sieves through grinding, obtains WO3/TiO 2Powder.Getting the following powder of 100 quantitative orders is to add 60 ℃ warm water under 80 ℃ of water bath condition to stir in temperature, obtains the carrier slurry; In whipping process, get the ammonium metavanadate powder and slowly join in the carrier slurry that stirs ammonium metavanadate, ammonium paratungstate and TiO 2Ratio be 1: 4: 40, add various auxiliary agent clays, methylcellulose, PEO, Ludox, glass fibre, MEA then, continue to be stirred to transfer in the vacuum deairing machine after water content suits and mix, practicing the system time is half an hour, practice the pug that makes and keeping old under the constant situation of humidity, the old time is 8 hours, continues then to mix, so repeatedly for several times; Final to practice the pug that makes be honeycomb ceramics through extruder for shaping, and dry in the controlled drying box of controlled humidity, rate of drying then, baking temperature is 60 ℃, be 4 days drying time, through the electric furnace calcining, 500 ℃ of roasting 20h obtain final honeycombed catalyst again.

The catalyst denitration activity method of testing that makes is with embodiment 1.In flue-gas temperature is 350 ℃, and NO concentration is about 100ppmv, and air speed is that denitration efficiency is 85% under the condition of 5000/hr.

Embodiment 5

Get TiO 2Powder is to add 60 ℃ warm water under 80 ℃ of water bath condition to stir in temperature, obtains the carrier slurry; Get ammonium metavanadate and ammonium paratungstate and slowly join in the carrier slurry that stirs in whipping process, the addition of ammonium metavanadate and ammonium paratungstate is converted into V 2O 5Later and the TiO with WO3 2Ratio be 1.6: 8: 80, add various auxiliary agent clays, methylcellulose, PEO, Ludox, glass fibre, MEA then, continue to be stirred to transfer in the vacuum deairing machine after water content suits and mix, practicing the system time is half an hour, practice the pug that makes and keeping old under the constant situation of humidity, the old time is 8 hours, continues then to mix, so repeatedly for several times; Final to practice the pug that makes be honeycomb ceramics through extruder for shaping, and dry in the controlled drying box of controlled humidity, rate of drying then, baking temperature is 60 ℃, be 6 days drying time, through the electric furnace calcining, 550 ℃ of roasting 24h obtain final honeycombed catalyst again.

The catalyst denitration activity method of testing that makes is with embodiment 1.In flue-gas temperature is 350 ℃, and NO concentration is about 100ppmv, and air speed is that denitration efficiency is 95% under the condition of 5000/hr.

Claims (6)

1 one kinds of Faviform ammonia-method selective-catalytic-reduction denitrified catalysts is characterized in that described catalyst is with TiO 2Be carrier, V 2O 5Be active component, WO 3Be co-catalyst.
2 Faviform ammonia-method selective-catalytic-reduction denitrified catalysts according to claim 1, described catalyst carrier TiO 2With Detitanium-ore-type TiO 2Be raw material, specific area is at 90m 2About/g, content is 80% of catalyst weight percentage composition.
3 Faviform ammonia-method selective-catalytic-reduction denitrified catalysts according to claim 1, active component V 2O 5Form with ammonium metavanadate adds, and content is the 0.1%-5% of catalyst weight percentage composition, co-catalyst WO 3Form with ammonium paratungstate adds, and content is the 1%-20% of catalyst weight percentage composition.
4 Faviform ammonia-method selective-catalytic-reduction denitrified catalysts according to claim 1, described catalyst adds various auxiliary agents such as clay, methylcellulose, PEO, Ludox, glass fibre, MEA in preparation process.
5 Faviform ammonia-method selective-catalytic-reduction denitrified catalysts according to claim 1 is characterized in that catalyst preparation process comprises the steps:
(1) preparation of carrier slurry
Get TiO 2Powder adds water and stirs under water bath condition, obtain the carrier slurry;
(2) adding of the load of active component and other auxiliary agents
Get in whipping process in the carrier slurry that ammonium metavanadate and ammonium paratungstate slowly join step (1), add various auxiliary agents then, it is suitable to continue to be stirred to water content;
(3) pug mill mixes with old
Transfer in the vacuum deairing machine through the suitable slurry that is stirred to water content in the step (2) and mix, keeping old under the constant situation of humidity, continue then to mix then, so repeatedly for several times, obtain practicing the pug that makes;
(4) extrusion molding
Practicing the pug that makes in the step (3) is honeycomb ceramics through extruder for shaping.
(5) drying of catalyst and roasting
The honeycomb ceramics of extrusion molding is dry in the controlled drying box of controlled humidity, rate of drying in the step (4), obtains final honeycombed catalyst through the electric furnace calcining again.
6 preparation methods according to the Faviform ammonia-method selective-catalytic-reduction denitrified catalyst described in the claim 5 is characterized in that:
In the described step (1) to TiO 2The water that adds in the powder is that temperature is 60 ℃ a warm water, and carrier slurry whipping process is to carry out under 60～80 ℃ condition of water bath heating;
The experienced at every turn system time of pug is half an hour in the described step (3), and the old time is 8 hours;
In described step (5) dry run, the method for taking controlled humidity slowly to heat up, baking temperature is 60～100 ℃, be 3～6 days drying time, again through electric furnace calcining, 300～600 ℃ of roasting 12～24h.
CN200810212081A 2008-09-17 2008-09-17 Faviform ammonia-method selective-catalytic-reduction denitrified catalyst and preparation method thereof CN101676024A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200810212081A CN101676024A (en) 2008-09-17 2008-09-17 Faviform ammonia-method selective-catalytic-reduction denitrified catalyst and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200810212081A CN101676024A (en) 2008-09-17 2008-09-17 Faviform ammonia-method selective-catalytic-reduction denitrified catalyst and preparation method thereof

Publications (1)

Publication Number Publication Date
CN101676024A true CN101676024A (en) 2010-03-24

Family

ID=42028829

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200810212081A CN101676024A (en) 2008-09-17 2008-09-17 Faviform ammonia-method selective-catalytic-reduction denitrified catalyst and preparation method thereof

Country Status (1)

Country Link
CN (1) CN101676024A (en)

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101862648A (en) * 2010-06-03 2010-10-20 石磊 SCR deNOx catalyst added with attapulgite and preparation method thereof
CN102114423A (en) * 2011-01-12 2011-07-06 江苏峰业电力环保集团有限公司 Denitrifying catalyst and preparation method thereof as well as flue gas denitrifying method
CN102166516A (en) * 2011-03-10 2011-08-31 青岛华拓电力环保有限公司 Catalytic agent for denitrating smoke and preparation technology thereof
CN102266777A (en) * 2011-06-20 2011-12-07 河北晶锐瓷业有限公司 Novel nontoxic catalyst applied to denitration of smoke and preparation method thereof
CN102302944A (en) * 2011-07-29 2012-01-04 清华大学 Ceramic honeycomb type denitrating catalyst and preparation method thereof
CN102310001A (en) * 2011-07-29 2012-01-11 清华大学 Ceramic honeycomb denitration catalyst and preparation method thereof
CN102380384A (en) * 2011-07-22 2012-03-21 丁珂 Preparation method of novel environmentally-friendly non-toxic catalyst
CN102416321A (en) * 2011-11-30 2012-04-18 广州市威格林环保科技有限公司 Preparation method of SCR (Selective Catalytic Reduction) vanadium-series catalyst used in denitration of tail gas of diesel vehicle
CN102773090A (en) * 2012-07-19 2012-11-14 重庆大学 Integral honeycomb denitration catalyst for novel WO3 addition technology and preparation method of catalyst
CN102773091A (en) * 2012-07-19 2012-11-14 重庆大学 Novel composite-carrier honeycomb monolithic denitration catalyst and preparing method thereof
CN103191722A (en) * 2013-04-23 2013-07-10 江苏龙源催化剂有限公司 Crosslinked montmorillonite honeycomb type denitration catalyst and preparation method thereof
CN103301831A (en) * 2012-03-16 2013-09-18 中国科学院大连化学物理研究所 Catalyst for removing nitrogen oxide in emission exhaust and preparation method thereof
CN103586016A (en) * 2013-11-14 2014-02-19 索平 Honeycomb type selective catalytic reduction denitration catalyst and preparation method thereof
CN103691423A (en) * 2013-11-29 2014-04-02 湖北广净环保催化剂有限公司 Preparation method for high-activity cellular nitrogen oxide removal catalyst
CN103691424A (en) * 2013-12-01 2014-04-02 湖北广净环保催化剂有限公司 Preparation method for high-temperature-resistant abrasion-resistant cellular NOx removal catalyst
CN103691422A (en) * 2013-11-29 2014-04-02 湖北广净环保催化剂有限公司 Preparation method of low-sulfur-dioxide honeycomb-type catalyst for removing nitrogen oxides
CN104226300A (en) * 2014-08-08 2014-12-24 江苏宇达环保科技股份有限公司 SCR (Selective Catalytic Reduction) catalyst and preparation method thereof
CN104437586A (en) * 2013-09-25 2015-03-25 江苏清能国信环保科技有限公司 Foam type low-temperature flue gas denitration catalyst and preparation method thereof
CN104768644A (en) * 2012-11-08 2015-07-08 揖斐电株式会社 Honeycomb structure and manufacturing method thereof
CN104768643A (en) * 2012-11-08 2015-07-08 揖斐电株式会社 Honeycomb structure and manufacturing method thereof
WO2015184911A1 (en) * 2014-06-06 2015-12-10 四川中自尾气净化有限公司 Process for preparing vanadium-base scr catalyst coating for purifying tail gas of diesel vehicle
CN105170136A (en) * 2015-10-14 2015-12-23 浙江广翰环保科技股份有限公司 High specific surface area honeycomb type denitration catalyst and preparation method thereof
EP2939735A4 (en) * 2014-02-05 2017-01-11 Ibiden Co., Ltd Honeycomb catalyst and process for producing honeycomb catalyst
CN106732529A (en) * 2016-11-09 2017-05-31 上海派特贵金属环保科技有限公司 A kind of SCR denitration and preparation method thereof
CN107008252A (en) * 2017-04-24 2017-08-04 河北工业大学 A kind of vanadic anhydride tungstic acid titania fiber paper catalyst and preparation method thereof
CN107983333A (en) * 2017-11-14 2018-05-04 浙江浙能催化剂技术有限公司 A kind of monoblock type high-temperature flue gas denitrating catalyst and preparation method thereof
CN108031466A (en) * 2017-11-14 2018-05-15 浙江浙能催化剂技术有限公司 Have the low SO of anti-arsenic poisoning and wide active temperature windows concurrently2Oxygenation efficiency SCR denitration and preparation method thereof
CN108290151A (en) * 2015-11-27 2018-07-17 优美科股份公司及两合公司 The method for preparing the monolithic catalyst for selective catalyst reduction of nitrogen oxides

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101862648A (en) * 2010-06-03 2010-10-20 石磊 SCR deNOx catalyst added with attapulgite and preparation method thereof
CN102114423A (en) * 2011-01-12 2011-07-06 江苏峰业电力环保集团有限公司 Denitrifying catalyst and preparation method thereof as well as flue gas denitrifying method
CN102166516A (en) * 2011-03-10 2011-08-31 青岛华拓电力环保有限公司 Catalytic agent for denitrating smoke and preparation technology thereof
CN102266777A (en) * 2011-06-20 2011-12-07 河北晶锐瓷业有限公司 Novel nontoxic catalyst applied to denitration of smoke and preparation method thereof
CN102380384A (en) * 2011-07-22 2012-03-21 丁珂 Preparation method of novel environmentally-friendly non-toxic catalyst
CN102380384B (en) * 2011-07-22 2013-10-30 丁珂 Preparation method of environmentally-friendly non-toxic catalyst
CN102310001B (en) * 2011-07-29 2013-08-21 清华大学 Ceramic honeycomb denitration catalyst and preparation method thereof
CN102302944B (en) * 2011-07-29 2013-06-12 清华大学 Ceramic honeycomb type denitrating catalyst and preparation method thereof
CN102310001A (en) * 2011-07-29 2012-01-11 清华大学 Ceramic honeycomb denitration catalyst and preparation method thereof
CN102302944A (en) * 2011-07-29 2012-01-04 清华大学 Ceramic honeycomb type denitrating catalyst and preparation method thereof
CN102416321B (en) * 2011-11-30 2013-04-17 广州市威格林环保科技有限公司 Preparation method of SCR (Selective Catalytic Reduction) vanadium-series catalyst used in denitration of tail gas of diesel vehicle
CN102416321A (en) * 2011-11-30 2012-04-18 广州市威格林环保科技有限公司 Preparation method of SCR (Selective Catalytic Reduction) vanadium-series catalyst used in denitration of tail gas of diesel vehicle
CN103301831A (en) * 2012-03-16 2013-09-18 中国科学院大连化学物理研究所 Catalyst for removing nitrogen oxide in emission exhaust and preparation method thereof
CN102773091A (en) * 2012-07-19 2012-11-14 重庆大学 Novel composite-carrier honeycomb monolithic denitration catalyst and preparing method thereof
CN102773090B (en) * 2012-07-19 2015-03-04 重庆大学 Integral honeycomb denitration catalyst for WO3 addition technology and preparation method of catalyst
CN102773090A (en) * 2012-07-19 2012-11-14 重庆大学 Integral honeycomb denitration catalyst for novel WO3 addition technology and preparation method of catalyst
CN102773091B (en) * 2012-07-19 2015-03-04 重庆大学 Composite-carrier honeycomb monolithic denitration catalyst and preparing method thereof
CN104768644A (en) * 2012-11-08 2015-07-08 揖斐电株式会社 Honeycomb structure and manufacturing method thereof
CN104768643A (en) * 2012-11-08 2015-07-08 揖斐电株式会社 Honeycomb structure and manufacturing method thereof
CN103191722A (en) * 2013-04-23 2013-07-10 江苏龙源催化剂有限公司 Crosslinked montmorillonite honeycomb type denitration catalyst and preparation method thereof
CN103191722B (en) * 2013-04-23 2015-03-25 江苏龙源催化剂有限公司 Crosslinked montmorillonite honeycomb type denitration catalyst and preparation method thereof
CN104437586A (en) * 2013-09-25 2015-03-25 江苏清能国信环保科技有限公司 Foam type low-temperature flue gas denitration catalyst and preparation method thereof
CN103586016A (en) * 2013-11-14 2014-02-19 索平 Honeycomb type selective catalytic reduction denitration catalyst and preparation method thereof
CN103691423A (en) * 2013-11-29 2014-04-02 湖北广净环保催化剂有限公司 Preparation method for high-activity cellular nitrogen oxide removal catalyst
CN103691422A (en) * 2013-11-29 2014-04-02 湖北广净环保催化剂有限公司 Preparation method of low-sulfur-dioxide honeycomb-type catalyst for removing nitrogen oxides
CN103691424A (en) * 2013-12-01 2014-04-02 湖北广净环保催化剂有限公司 Preparation method for high-temperature-resistant abrasion-resistant cellular NOx removal catalyst
EP2939735A4 (en) * 2014-02-05 2017-01-11 Ibiden Co., Ltd Honeycomb catalyst and process for producing honeycomb catalyst
WO2015184911A1 (en) * 2014-06-06 2015-12-10 四川中自尾气净化有限公司 Process for preparing vanadium-base scr catalyst coating for purifying tail gas of diesel vehicle
CN104226300A (en) * 2014-08-08 2014-12-24 江苏宇达环保科技股份有限公司 SCR (Selective Catalytic Reduction) catalyst and preparation method thereof
CN105170136A (en) * 2015-10-14 2015-12-23 浙江广翰环保科技股份有限公司 High specific surface area honeycomb type denitration catalyst and preparation method thereof
CN108290151A (en) * 2015-11-27 2018-07-17 优美科股份公司及两合公司 The method for preparing the monolithic catalyst for selective catalyst reduction of nitrogen oxides
CN106732529A (en) * 2016-11-09 2017-05-31 上海派特贵金属环保科技有限公司 A kind of SCR denitration and preparation method thereof
CN107008252A (en) * 2017-04-24 2017-08-04 河北工业大学 A kind of vanadic anhydride tungstic acid titania fiber paper catalyst and preparation method thereof
CN107008252B (en) * 2017-04-24 2020-02-07 河北工业大学 Vanadium pentoxide-tungsten trioxide-titanium dioxide fiber paper catalyst and preparation method thereof
CN107983333A (en) * 2017-11-14 2018-05-04 浙江浙能催化剂技术有限公司 A kind of monoblock type high-temperature flue gas denitrating catalyst and preparation method thereof
CN108031466A (en) * 2017-11-14 2018-05-15 浙江浙能催化剂技术有限公司 Have the low SO of anti-arsenic poisoning and wide active temperature windows concurrently2Oxygenation efficiency SCR denitration and preparation method thereof

Similar Documents

Publication Publication Date Title
CN104492446B (en) A kind of catalyst and preparation method for ammonia selective reducing nitrogen oxide
DE102014110811A1 (en) Ammonia-slip catalyst
CN105688974B (en) One kind is with SBA-15/TiO2For the denitrating catalyst and preparation method thereof of carrier
EP0376025B1 (en) Process for the reduction of nitrogen oxides in exhaust gases
CN104226301B (en) A kind of rare earth based complex multi-component denitration, the preparation method taking off two English catalyst
JP2013173147A (en) Ammonia oxidation catalyst for the coal fired utilities
CN103252231B (en) Denitration catalyst and preparation method thereof
KR100439004B1 (en) A Catalyst for Selective Catalytic Reduction of Nitrogen Oxides and A Method for Preparing the Same
CN100566823C (en) A kind of SCR denitrating catalyst and preparation method thereof
US8663567B2 (en) Catalyst for removing nitrogen oxides
CN102274723B (en) Mesoporous TiO2 carrier based SCR flue gas denitration catalyst and preparation method thereof
EP3241602B1 (en) Process for the catalytic oxidation of ammonia in power utilities
ES2340678T3 (en) Catalyst support material, prepared catalysts from the same, and process for the treatment of a fireplace gas.
CN102824922B (en) Integrated honeycomb SCR (selective catalytic reduction) catalyst for low-temperature smoke denitration and preparation method of catalyst
CA2191591C (en) Denox catalyst for reducing the nox concentration in a stream of fluid, and method of manufacturing the catalyst
CN102319559B (en) Surface deposition honeycomb flue gas denitration catalyst and preparation method thereof
KR100781726B1 (en) Method for manufacturing de-nox scr coating catalyst using porous ceramic substrate
CN101444727B (en) Preparation method of integral honeycombed catalyst for SCR flue-gas denitration
KR101798713B1 (en) SCR Catalyst for Nitrogen Oxide Removal and Manufacturing method thereof
CN102773090B (en) Integral honeycomb denitration catalyst for WO3 addition technology and preparation method of catalyst
CN104492471B (en) Medium-low temperature SCR denitration mesoporous molecular sieve catalyst and preparation method and application method thereof
CN101428215B (en) Process for producing flue gas denitration catalyst and flue gas denitration catalyst produced with the process
CN105050710B (en) As for handling the aluminosilicate of the catalyst of exhaust gas or silicoaluminophosphamolecular molecular sieve/manganese octahedron molecular screen
CN103769137A (en) Preparation method of high-strength flue gas denitration catalyst
CN103143396A (en) Honeycomb flue gas denitrification catalyst and preparation method thereof

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
WD01 Invention patent application deemed withdrawn after publication

Open date: 20100324

C02 Deemed withdrawal of patent application after publication (patent law 2001)