CN107175098A - One kind is used for activated carbon used for flue gas demercuration catalyst and preparation method and application - Google Patents

One kind is used for activated carbon used for flue gas demercuration catalyst and preparation method and application Download PDF

Info

Publication number
CN107175098A
CN107175098A CN201710468028.1A CN201710468028A CN107175098A CN 107175098 A CN107175098 A CN 107175098A CN 201710468028 A CN201710468028 A CN 201710468028A CN 107175098 A CN107175098 A CN 107175098A
Authority
CN
China
Prior art keywords
activated carbon
catalyst
flue gas
mercury
active component
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
CN201710468028.1A
Other languages
Chinese (zh)
Inventor
黄张根
朱有才
韩小金
崔燕
宁卫云
郭耀萍
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.)
Shanxi Institute of Coal Chemistry of CAS
Original Assignee
Shanxi Institute of Coal Chemistry of CAS
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 Shanxi Institute of Coal Chemistry of CAS filed Critical Shanxi Institute of Coal Chemistry of CAS
Priority to CN201710468028.1A priority Critical patent/CN107175098A/en
Publication of CN107175098A publication Critical patent/CN107175098A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/20—Vanadium, niobium or tantalum
    • B01J23/22—Vanadium
    • 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
    • B01D53/8665—Removing heavy metals or compounds thereof, e.g. mercury
    • 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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/0201—Impregnation
    • B01J37/0207—Pretreatment of the support
    • 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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/0201—Impregnation
    • B01J37/0213—Preparation of the impregnating solution
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/60—Heavy metals or heavy metal compounds
    • B01D2257/602—Mercury or mercury compounds
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

One kind is used for activated carbon used for flue gas demercuration catalyst, it is specifically related to a kind of to be used for activated carbon used for flue gas demercuration catalyst and preparation method and application, it is characterized in that catalyst is made up of active component and carrier, the active component is the oxide of vanadium and cerium, and each component percentage by weight composition of catalyst is respectively：Active component V2O5=1~10wt%；Active component CeO2=1~12wt%；Carrier=78~98wt%；The present invention, which has, to be prepared simply, and cost is low, the advantage of function admirable.

Description

One kind is used for activated carbon used for flue gas demercuration catalyst and preparation method and application
Technical field
The invention belongs to a kind of catalyst and preparation method and application, relate in particular to a kind of for flue gas demercuration activity Pd/carbon catalyst and preparation method and application.
Background technology
China is a rich coal, the country of oil-poor, few gas, and this energy resource structure determines coal in fossil fuel total resources In critical role.China is the big country of an energy resource consumption again simultaneously, and coal proportion in energy resource structure is up to 75%, Coal wherein close to annual output of coal 70% is directly used in burning.But the pollution discharged in the combustion process of a large amount of coals It is main source that thing has turned into China's atmosphere pollution, mainly including NOx, SO2, mercury etc..Wherein, mercury and its derivative except with The features such as hypertoxicity, persistence, easy migration and bioconcentration, can also persistently exist in air and food chain, at a distance Migration, existence and health care belt to the mankind carry out huge threat, and therefore, a series of harm that mercury is produced can not be ignored.
Mercury is main with element mercury in coal-fired flue-gas（Hg0）, oxidation state mercury（Hg2+）, particle mercury（Hgp）Three kinds of forms are deposited .HgpIt can be collected and be removed by cleaner, Hg2+It is soluble in water, wet desulphurization device can be combined and be removed, However, due to Hg0With higher vapour pressure and water is insoluble in, utilizes existing cleaner and wet flue gas desulfurizer It is difficult to its Direct Acquisition be removed, Hg0Almost all is with fume emission into air.Therefore, the emphasis and difficult point of flue gas demercuration It is to Hg0Control and removing.In addition, newest promulgation《Fossil-fuel power plant atmospheric pollutant emission standard（GB 13223- 2011）》Middle clear stipulaties, from 2015, the discharge capacity of mercury and mercuric compounds must not exceed 0.03mg/ in coal-fired plant flue gas m3.Therefore, to meet the requirements of relevant laws and regulations, developmental research high effective flue gas demercuration catalyst is particularly important.
The control technology of existing smoke mercury emission is directed to, activated carbon spraying technique is considered as that current coal-fired flue-gas takes off One of most efficient method in mercury technology, but the absorption capture rate that non-modified activated carbon has mercury is low, adsorption capacity is low, The problems such as consumption is big, causes its operating cost higher, therefore limits the extensive use in flue gas control field of the technology. To make full use of the premium properties of activated carbon, therefore need to carry out Depth Study to activated carbon, find appropriate method of modifying, pass through Appropriate modification is carried out to activated carbon, the load capacity and decentralization of active component is improved, prepared with height catalysis The activated carbon of activity and adsorption capacity, increases its adsorption and oxidation ability, improves the removal efficiency of mercury, and then reduce using activated carbon Cost.
The content of the invention：
Good it is an object of the invention to provide a kind of catalytic activity to solve problems of the prior art, adsorption capacity is high, mercury Removal efficiency it is high, cost it is low be used for activated carbon used for flue gas demercuration catalyst and preparation method and application.
The catalyst of the present invention is made up of active component and carrier, and the active component is the oxide of vanadium and cerium, catalysis The each component percentage by weight of agent is constituted：Active component V2O5=1~10wt%；Active component CeO2=1~12wt%； Carrier=78~98wt%.
Above-mentioned carrier is activated carbon, and the oxide of above-mentioned vanadium is generated after the soluble-salt calcining of vanadium, above-mentioned cerium Oxide be by cerium soluble-salt calcining after generate.
Above-mentioned activated carbon is wood activated charcoal, cocoanut active charcoal, coal mass active carbon, active fruit shell carbon, activated carbon In one or two kinds of and two or more mixtures.
The preparation method of the catalyst of the present invention is as follows：
（1）Dry activated carbon is crushed, sieved, the granular activated carbon for filtering out particle diameter in 30~60 mesh is standby；
（2）Using equi-volume impregnating, by active component V2O51~10wt%；Active component CeO21~12wt%；Activated carbon 78~98wt% composition, activated carbon is immersed in the ammonium metavanadate-cerous nitrate mixed solution prepared, dry in 50~180 DEG C Dry 5~10h, then in N2Under atmosphere, 200~500 DEG C of 4~10h of calcining, in air atmosphere finally, 180~300 DEG C of calcinings 4~10h, that is, catalyst needed for being made.
Ammonium metavanadate-cerous nitrate mixed solution as described above of preparing is by ammonium metavanadate, cerous nitrate, oxalic acid and water mixing Dissolving.
The application of catalyst of the present invention, comprises the following steps：
Described catalyst is used for the removing of the mercury in flue gas such as coal-burning power plant, Industrial Boiler, garbage burning boiler, Industrial Stoves, The operating temperature of the flue gas demercuration catalyst is 100~220 DEG C, and air speed is 2000h-1~51000h-1。
Compared with prior art, the present invention has the advantages that：
1）The present invention carries out impregnation process by using the mixed solution of ammonium metavanadate and cerous nitrate to activated carbon, improves activity The internal structure of charcoal, adds the quantity of active component in activated carbon, generates more oxygen vacancy positions, makes the absorption of activated carbon Oxidability is significantly increased, and air speed is 2000h in course of reaction-1~51000h-1, the removal efficiency of mercury is more than 90.8%, realization The efficient removal of Mercury In Coal Combustion Flue Gas
2）The cerium modified activated-carbon catalyst preparation method of vanadium in the present invention is simple, easily prepared, raw material sources are various extensively, into This cheap, demercuration function admirable.By activated carbon application of the vanadium after cerium modified in the removing of Mercury In Coal Combustion Flue Gas, it can greatly reduce The usage amount of activated carbon, so as to reduce the input cost of activated carbon.
3）The application of catalyst of the present invention：By the modification to activated carbon, activated carbon is drastically increased to flue gas The catalysis oxidation ability of middle mercury, the suction-operated for changing the conventional carbon that places one's entire reliance upon carries out the situation of demercuration, can be extensive Removing for mercury in flue gas such as coal-burning power plant, Industrial Boiler, garbage burning boiler, Industrial Stoves.
4）The reaction temperature of the catalyst is gentle, has higher catalytic activity in 100~220 DEG C of low-temperature ranges.It is suitable Together in low temperature demercuration, while the mercury captured will not be made to be desorbed or decompose, secondary pollution is not produced, possesses green energy conservation effect Benefit, with wide application space and development prospect.
Brief description of the drawings：
Fig. 1 is the demercuration Activity evaluation of original activated carbon and modified activated-carbon catalyst in embodiment 1.
Fig. 2 is the demercuration Activity evaluation of original activated carbon and modified activated-carbon catalyst in embodiment 2.
Fig. 3 is the demercuration Activity evaluation of original activated carbon and modified activated-carbon catalyst in embodiment 4.
Fig. 4 is the demercuration Activity evaluation of original activated carbon and modified activated-carbon catalyst in embodiment 6.
Embodiment：
The present invention is further illustrated below by specific embodiment.
Embodiment 1：
1）Dry wood activated charcoal is crushed, sieved, the granular activated carbon for filtering out particle diameter in 30~60 mesh is standby；
2）0.13g NH are weighed respectively4VO3, 0.26g H2C2O4·2H2O and 0.25g Ce (NO3)3·6H2O, is placed in beaker, Add 15mlH2O, heats and is stirred with magnetic stirring apparatus, is in navy blue to solution, ammonium metavanadate-cerous nitrate is made Mixed solution.
3）Weigh step 1）In granular activated carbon 10g, be added to step 2）Ammonium metavanadate-cerous nitrate mixed solution In, using incipient impregnation.By the solid matter of gained, in 50 DEG C of dry 10h, 200 DEG C of nitrogen atmospheres are calcined 10h, finally existed 180 DEG C of air atmospheres calcine 10h, you can 1wt%V is made2O5-1wt%CeO2Modified active carbon catalyst（Abbreviation 1V-1Ce/AC）. Accurately weigh in the modified activated-carbon catalysts of 0.5g, the fixed bed reactors for being placed in 100 DEG C, total tolerance is in course of reaction 45ml/min, air speed is 2000h-1, mercury osmos tube of the mercury vapour in U-tube（VICI Metronics,American）, through height Pure nitrogen gas is carried and gone out as carrier gas, and fixed bed reactors import mercury concentration is 300ug/m3,O2=5%, balance is used as by nitrogen The concentration of mercury is detected using the online mercury vapourmeters of RA-915M (Lumex Co, Ltd, Russia) in gas, simulated flue gas.Experimental result Show, in 240min, demercuration rate is maintained under more than 90.80%, same experimental conditions, the mercury of unit mass original activity charcoal Adsorbance is 5037.24ug/g, and the mercury adsorbance of unit mass catalyst is 31627.45ug/g, is the 6.27 of original activity charcoal Times.
Embodiment 2：
1）Dry wood activated charcoal is crushed, sieved, the granular activated carbon for filtering out particle diameter in 30~60 mesh is standby.
2）0.13g NH are weighed respectively4VO3, 0.26g H2C2O4·2H2O and 3.03g Ce (NO3)3·6H2O, is placed in beaker In, add 15mlH2O, heats and is stirred with magnetic stirring apparatus, is in navy blue to solution, ammonium metavanadate-nitre is made Sour cerium mixed solution.
3）Weigh step 1）In granular activated carbon 10g, be added to step 2）Ammonium metavanadate-cerous nitrate mixed solution In, using incipient impregnation.By the solid matter of gained, in 80 DEG C of dry 9h, 300 DEG C of nitrogen atmospheres calcine 8h, finally 200 DEG C air atmosphere calcining 8h, you can 1wt%V is made2O5-12wt%CeO2Modified active carbon catalyst（Abbreviation 1V-12Ce/AC）.It is accurate Really weigh in the modified activated-carbon catalysts of 0.2g, the fixed bed reactors for being placed in 120 DEG C, total tolerance is in course of reaction 460ml/min, air speed is 51000h-1, mercury osmos tube of the mercury vapour in U-tube（VICI Metronics,American）, warp High pure nitrogen is carried and gone out as carrier gas, and fixed bed reactors import mercury concentration is 300ug/m3,O2=5%, balance is used as by nitrogen The concentration of mercury is detected using the online mercury vapourmeters of RA-915M (Lumex Co, Ltd, Russia) in gas, simulated flue gas.Experimental result Show, in 240min, demercuration rate is maintained under more than 96.93%, same experimental conditions, the mercury of unit mass original activity charcoal Adsorbance is 4843.41 ug/g, and the mercury adsorbance of unit mass catalyst is 36698.16ug/g, is original activity charcoal 7.58 again.
Embodiment 3：
1）Dry wood activated charcoal is crushed, sieved, the granular activated carbon for filtering out particle diameter in 30~60 mesh is standby.
2）0.78g NH are weighed respectively4VO3, 1.56g H2C2O4·2H2O and 1.52g Ce (NO3)3·6H2O, is placed in beaker In, add 15mlH2O, heats and is stirred with magnetic stirring apparatus, is in navy blue to solution, ammonium metavanadate-nitre is made Sour cerium mixed solution.
3）Weigh step 1）In granular activated carbon 10g, be added to step 2）Ammonium metavanadate-cerous nitrate mixed solution In, using incipient impregnation.By the solid matter of gained, in 100 DEG C of dry 8h, 350 DEG C of nitrogen atmospheres are calcined 7h, finally existed 240 DEG C of air atmospheres calcine 7h, you can 6wt%V is made2O5-6wt%CeO2Modified active carbon catalyst（Abbreviation 6V-6Ce/AC）. Accurately weigh in the modified activated-carbon catalysts of 0.2g, the fixed bed reactors for being placed in 140 DEG C, total tolerance is in course of reaction 272ml/min, air speed is 30000h-1, mercury osmos tube of the mercury vapour in U-tube（VICI Metronics,American）, warp High pure nitrogen is carried and gone out as carrier gas, and fixed bed reactors import mercury concentration is 300ug/m3,O2=5%, balance is used as by nitrogen The concentration of mercury is detected using the online mercury vapourmeters of RA-915M (Lumex Co, Ltd, Russia) in gas, simulated flue gas.Experimental result Show, in 240min, demercuration rate is maintained under more than 92.61%, same experimental conditions, the mercury of unit mass original activity charcoal Adsorbance is 5237.42ug/g, and the mercury adsorbance of unit mass catalyst is 37625.17ug/g, is the 7.18 of original activity charcoal Times.
Embodiment 4：
1）Dry wood activated charcoal is crushed, sieved, the granular activated carbon for filtering out particle diameter in 30~60 mesh is standby.
2）0.26g NH are weighed respectively4VO3, 0.52g H2C2O4·2H2O and 2g Ce (NO3)3·6H2O, is placed in beaker, Add 15mlH2O, heats and is stirred with magnetic stirring apparatus, is in navy blue to solution, ammonium metavanadate-cerous nitrate is made Mixed solution.
3）Weigh step 1）In granular activated carbon 10g, be added to step 2）Ammonium metavanadate-cerous nitrate mixed solution In, using incipient impregnation.By the solid matter of gained, in 140 DEG C of dry 7h, 400 DEG C of nitrogen atmospheres are calcined 6h, finally existed 260 DEG C of air atmospheres calcine 6h, you can 2wt%V is made2O5-8wt%CeO2Modified active carbon catalyst（Abbreviation 1V-8Ce/AC）. Accurately weigh in the modified activated-carbon catalysts of 0.2g, the fixed bed reactors for being placed in 160 DEG C, total tolerance is in course of reaction 460ml/min, air speed is 51000h-1, mercury osmos tube of the mercury vapour in U-tube（VICI Metronics,American）, warp High pure nitrogen is carried and gone out as carrier gas, and fixed bed reactors import mercury concentration is 300ug/m3,O2=5%, balance is used as by nitrogen The concentration of mercury is detected using the online mercury vapourmeters of RA-915M (Lumex Co, Ltd, Russia) in gas, simulated flue gas.Experimental result Show, in 240min, demercuration rate is maintained under more than 99.25%, same experimental conditions, the mercury of unit mass original activity charcoal Adsorbance is 4843.41 ug/g, and the mercury adsorbance of unit mass catalyst is 38372.58ug/g, is original activity charcoal 7.92 again.
Embodiment 5：
1）Dry wood activated charcoal is crushed, sieved, the granular activated carbon for filtering out particle diameter in 30~60 mesh is standby.
2）1.3g NH are weighed respectively4VO3, 2.6g H2C2O4·2H2O and 0.25g Ce (NO3)3·6H2O, is placed in beaker In, add 15mlH2O, heats and is stirred with magnetic stirring apparatus, is in navy blue to solution, ammonium metavanadate-nitre is made Sour cerium mixed solution.
3）Weigh step 1）In granular activated carbon 10g, be added to step 2）Ammonium metavanadate-cerous nitrate mixed solution In, using incipient impregnation.By the solid matter of gained, in 160 DEG C of dry 6h, 450 DEG C of nitrogen atmospheres are calcined 5h, finally existed 280 DEG C of air atmospheres calcine 5h, you can 10wt%V is made2O5-1wt%CeO2Modified active carbon catalyst（Abbreviation 10V-1Ce/ AC）.Accurately weigh in the modified activated-carbon catalysts of 0.2g, the fixed bed reactors for being placed in 200 DEG C, total gas in course of reaction Measure as 460ml/min, air speed is 51000h-1, mercury osmos tube of the mercury vapour in U-tube（VICI Metronics, American）, carry and go out as carrier gas through high pure nitrogen, fixed bed reactors import mercury concentration is 300ug/m3,O2=5%, by Nitrogen is as Balance Air, and the concentration of mercury uses the online mercury vapourmeters of RA-915M (Lumex Co, Ltd, Russia) in simulated flue gas Detection.Test result indicates that, in 240min, demercuration rate is maintained under more than 94.87%, same experimental conditions, and unit mass is former The mercury adsorbance of beginning activated carbon is 4843.41 ug/g, and the mercury adsorbance of unit mass catalyst is 30275.83ug/g, is former 6.25 times of beginning activated carbon.
Embodiment 6：
1）Dry wood activated charcoal is crushed, sieved, the granular activated carbon for filtering out particle diameter in 30~60 mesh is standby.
2）1.3g NH are weighed respectively4VO3, 2.6g H2C2O4·2H2O and 3.03g Ce (NO3)3·6H2O, is placed in beaker In, add 15mlH2O, heats and is stirred with magnetic stirring apparatus, is in navy blue to solution, ammonium metavanadate-nitre is made Sour cerium mixed solution.
3）Weigh step 1）In granular activated carbon 10g, be added to step 2）Ammonium metavanadate-cerous nitrate mixed solution In, using incipient impregnation.By the solid matter of gained, in 180 DEG C of dry 5h, 500 DEG C of nitrogen atmospheres are calcined 4h, finally existed 300 DEG C of air atmospheres calcine 4h, you can 10wt%V is made2O5-12wt%CeO2Modified active carbon catalyst（Abbreviation 10V-12Ce/ AC）.Accurately weigh in the modified activated-carbon catalysts of 0.2g, the fixed bed reactors for being placed in 220 DEG C, total gas in course of reaction Measure as 460ml/min, air speed is 51000h-1, mercury osmos tube of the mercury vapour in U-tube（VICI Metronics, American）, carry and go out as carrier gas through high pure nitrogen, fixed bed reactors import mercury concentration is 300ug/m3,O2=5%, by Nitrogen is as Balance Air, and the concentration of mercury uses the online mercury vapourmeters of RA-915M (Lumex Co, Ltd, Russia) in simulated flue gas Detection.Test result indicates that, in 240min, demercuration rate is maintained under more than 93.54%, same experimental conditions, and unit mass is former The mercury adsorbance of beginning activated carbon is 4843.41 ug/g, and the mercury adsorbance of unit mass catalyst is 37214.45ug/g, is former 7.68 times of beginning activated carbon.

Claims (6)

1. one kind is used for activated carbon used for flue gas demercuration catalyst, it is characterised in that catalyst is made up of active component and carrier, described Active component is the oxide of vanadium and cerium, and each component percentage by weight composition of catalyst is respectively：Active component V2O5=1~ 10wt%；Active component CeO2=1~12wt%；Carrier=78~98wt%.
2. it is as claimed in claim 1 a kind of for activated carbon used for flue gas demercuration catalyst, it is characterised in that described carrier is work Property charcoal.
3. as claimed in claim 2 a kind of be used for activated carbon used for flue gas demercuration catalyst, it is characterised in that described activated carbon is One or two kinds of in wood activated charcoal, cocoanut active charcoal, coal mass active carbon, active fruit shell carbon, activated carbon and two kinds Mixture above.
4. a kind of preparation method for activated carbon used for flue gas demercuration catalyst as described in claim any one of 1-3, its feature It is to comprise the following steps：
（1）Dry activated carbon is crushed, sieved, the granular activated carbon for filtering out particle diameter in 30~60 mesh is standby；
（2）Using equi-volume impregnating, by active component V2O51~10wt%；Active component CeO21~12wt%；Activated carbon 78~98wt% composition, activated carbon is immersed in the ammonium metavanadate-cerous nitrate mixed solution prepared, dry in 50~180 DEG C Dry 5~10h, then in N2Under atmosphere, 200~500 DEG C of 4~10h of calcining, in air atmosphere finally, 180~300 DEG C of calcinings 4~10h, that is, catalyst needed for being made.
5. a kind of preparation method for activated carbon used for flue gas demercuration catalyst as claimed in claim 4, it is characterised in that prepare Ammonium metavanadate-cerous nitrate mixed solution is by ammonium metavanadate, cerous nitrate, oxalic acid and water mixed dissolution.
6. a kind of application for activated carbon used for flue gas demercuration catalyst as described in claim any one of 1-3, it is characterised in that Comprise the following steps：
Described catalyst is used for the removing of the mercury in flue gas such as coal-burning power plant, Industrial Boiler, garbage burning boiler, Industrial Stoves, The operating temperature of the flue gas demercuration catalyst is 100~220 DEG C, and air speed is 2000h-1~51000h-1。
CN201710468028.1A 2017-06-20 2017-06-20 One kind is used for activated carbon used for flue gas demercuration catalyst and preparation method and application Pending CN107175098A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710468028.1A CN107175098A (en) 2017-06-20 2017-06-20 One kind is used for activated carbon used for flue gas demercuration catalyst and preparation method and application

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710468028.1A CN107175098A (en) 2017-06-20 2017-06-20 One kind is used for activated carbon used for flue gas demercuration catalyst and preparation method and application

Publications (1)

Publication Number Publication Date
CN107175098A true CN107175098A (en) 2017-09-19

Family

ID=59836649

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710468028.1A Pending CN107175098A (en) 2017-06-20 2017-06-20 One kind is used for activated carbon used for flue gas demercuration catalyst and preparation method and application

Country Status (1)

Country Link
CN (1) CN107175098A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110013828A (en) * 2019-03-19 2019-07-16 杭州电子科技大学 A kind of preparation method of the new modified absorbent charcoal material for flue gas demercuration

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101259408A (en) * 2008-04-15 2008-09-10 中国科学院山西煤炭化学研究所 Catalyst for removing flue gas NOx under low temperature and preparation and application
CN102350340A (en) * 2011-10-19 2012-02-15 国电科学技术研究院 Composite smoke denitration catalyst capable of oxidizing zero-valence mercury
CN103706371A (en) * 2013-12-30 2014-04-09 重庆大学 Ultra-low V mercury-removing catalyst containing Ce and preparation method thereof
CN105107518A (en) * 2015-09-02 2015-12-02 大连理工大学 Synergetic denitration and demercuration catalyst for coal-fired power plant flue gas and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101259408A (en) * 2008-04-15 2008-09-10 中国科学院山西煤炭化学研究所 Catalyst for removing flue gas NOx under low temperature and preparation and application
CN102350340A (en) * 2011-10-19 2012-02-15 国电科学技术研究院 Composite smoke denitration catalyst capable of oxidizing zero-valence mercury
CN103706371A (en) * 2013-12-30 2014-04-09 重庆大学 Ultra-low V mercury-removing catalyst containing Ce and preparation method thereof
CN105107518A (en) * 2015-09-02 2015-12-02 大连理工大学 Synergetic denitration and demercuration catalyst for coal-fired power plant flue gas and preparation method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
XUNAN ZHANG ET AL.: "Simultaneous removal of elemental mercury and NO from flue gas by V2O5-CeO2/TiO2 catalysts", 《APPLIED SURFACE SCIENCE》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110013828A (en) * 2019-03-19 2019-07-16 杭州电子科技大学 A kind of preparation method of the new modified absorbent charcoal material for flue gas demercuration
CN110013828B (en) * 2019-03-19 2021-09-21 杭州电子科技大学 Preparation method of modified activated carbon material for flue gas demercuration

Similar Documents

Publication Publication Date Title
Tian et al. Removal of elemental mercury by activated carbon impregnated with CeO2
CN102294248A (en) Fe-Mn composite oxide catalyst for denitration and demercuration at the same time and preparation method thereof
CN102716736A (en) Composite catalyst capable of depriving nitre and mercury simultaneously and preparation method thereof
CN101791561B (en) Desulphurization and denitration catalyst and preparation method thereof
CN103372418A (en) Modified activated carbon demercuration adsorbent and preparation method thereof
CN104941630A (en) Low-temperature high-activity flue gas denitrification catalyst and preparation thereof
CN104495837A (en) Sargassum-based activated carbon and preparation method and application thereof
CN107282066A (en) A kind of SCR denitration and its methods for making and using same based on Natural Manganese iron ore
CN103553062A (en) Modified ATP (attapulgite) material as well as preparation method and application thereof
CN101773780A (en) Method for depriving nitric oxide by plasma cooperating with low-temperature catalytic oxidation NO
CN103143345A (en) Composite catalyst for catalytically oxidizing nitrogen oxide and preparation method of composite catalyst
CN105879879A (en) High-sulfur-resistant ultralow-temperature SCR (Selective Catalytic Reduction) denitration catalyst and preparation method thereof
Zhang et al. Enhancement of CeO 2 modified commercial SCR catalyst for synergistic mercury removal from coal combustion flue gas
CN105195170A (en) SCR (Selective Catalytic Reduction) denitration catalyst, and preparation method and application thereof
Li et al. Research on the catalytic oxidation of Hg0 by modified SCR catalysts
CN103111128A (en) Dust-removal mercury-removal filter bag for bag-type dust remover and preparation method of filter bag
CN108187617B (en) A kind of preparation method of porous flying dust adsorbent and its application of adsorbent
CN104148095B (en) A kind of denitration demercuration Catalysts and its preparation method
CN105772112A (en) Method for preparing vinyl chloride synthesizing catalysts from mercury in waste gas
CN104014304A (en) Nitric acid modified activated carbon adsorbent for demercuration of flue gas, and preparation method and application thereof
CN106731234B (en) A kind of preparation method of binary denitration sulfur resistant catalyst composite filtering material
CN102698740A (en) Bag-type NOx-removing catalyst and preparation method thereof
CN106237982A (en) CuO/ attapulgite catalyst-sorbent and for removing the method for Elemental Mercury in flue gas
CN102764655B (en) Demercuration catalyst
CN104971719B (en) The preparation method of the catalyst reacted for RCO SCR integral types

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for 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: 20170919